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Worksheets

G4 Q3

Total questions: 125

Worksheet time: 2hrs 34mins

Name
Class
Date
1.
The nucleus is like the ____________ of the cell.
a)

machine

b)

protection

c)

stomach

d)
brain
2.

Which organelle takes in "sun showers" and helps plants with the process or photosynthesis?

a)

Vacuole

b)

Mitochondria

c)

Cytoplasm

d)

Chloroplast

3.

Which of the following, found ONLY in plant cells and provides structure?

a)
cell wall
b)
chloroplast
c)
mitochondria
d)
vacuole
4.
Chloroplasts in plant cells allow the plant to perform a function that animal cells cannot do.  What is the main function of the chloroplasts found in plant cells?
a)
to absorb light energy and manufacture food
b)
to remove waste materials by active transport
c)
to manufacture chemical energy from food
d)
to control the shape of the cell
5.
Controls cell functions because DNA is stored here.
a)
nucleus
b)

vacuole

c)
ribosome
d)
cholorplast
6.
jello-like material, fills the space between cell organelles, is where many chemical reactions occur
a)
cytoplasm
b)

nucleus

c)
chloroplast
d)
cell membrane
7.

This is a picture of...

a)

cell membrane

b)

ribosomes

c)

mitochondria

8.

This is a...

a)

vacuole

b)

cell wall

c)

cytoplasm

9.

What is the structure labeled #10?

a)
Cell membrane
b)
Cell wall
c)
Cytoplasm
d)

Ribosome

10.

Within each cell are _ _ _ _ _ _ _ _ _ _ which each have their own structure and function.

(a)  

11.

Which organelle is responsible for producing energy in the cell?

a)

Mitochondria

b)

Ribosome

c)

Vacuole

d)

Cell wall

12.

What is the function of the cell membrane?

a)

It provides energy

b)

It stores genetic material

c)

It produces proteins

d)

It controls what enters and leaves the cell

13.

Which structure is found in plant cells but not in animal cells?

a)

Mitochondria

b)

Ribosome

c)

Nucleus

d)

Cell wall

14.

Which type of cell is this?

a)

Animal Cell

b)

Plant Cell

15.

Which organelles within plant cells help protect the cell and maintain it's shape?

2 lines
16.

If Michelle's body were a city, which tiny part inside her cells would be like the 'power plant,' making energy for her to run and play?

a)

nucleus

b)

mitochondria

c)

vacuole

d)

ribosomes

17.

Which type of cell is this?

a)

Plant cell

b)

Animal Cell

c)

Bacteria Cell

18-22.

Understanding the Cell as a Tiny City

Imagine a cell as a bustling city where every part has a special job to keep things running smoothly. The nucleus acts like the mayor's office, making important decisions and controlling the activities of the cell. Ribosomes are like factories, producing proteins that are essential for the cell's growth and repair. These proteins are the building blocks that help the cell function properly.

The mitochondria are the cell's power company, generating energy to keep everything working. They convert nutrients into usable energy, ensuring the cell has the power it needs to perform its tasks. Chloroplasts, found in plant cells, are like solar farms. They capture sunlight and turn it into food through a process called photosynthesis, providing energy for the cell and the plant.

The cell membrane is like the city gates, controlling what enters and exits the cell. It ensures that nutrients come in while waste is removed, keeping the cell safe and healthy. Vacuoles act as warehouses, storing water, nutrients, and waste products. They help maintain the cell's structure and provide the resources it needs to survive.

Each organelle in the cell works together, just like parts of a city, to keep everything running smoothly. The cell wall, found in plant cells, acts as the city wall, providing protection and support. By understanding the roles of these organelles, we can see how the cell functions as a tiny, organized city full of teamwork and purpose.

18.

What is the role of the nucleus in a cell?

a)

Acts as the mayor's office, controlling activities

b)

Generates energy for the cell

c)

Stores water and nutrients

d)

Captures sunlight for photosynthesis

19.

Which organelle is responsible for generating energy in the cell?

a)

Ribosomes

b)

Mitochondria

c)

Chloroplasts

d)

Vacuoles

20.

What is the function of chloroplasts in plant cells?

a)

Store waste products

b)

Capture sunlight and perform photosynthesis

c)

Control what enters and exits the cell

d)

Produce proteins for growth and repair

21.

What does the cell membrane do?

a)

Acts as the city wall, providing protection

b)

Controls what enters and exits the cell

c)

Generates energy for the cell

d)

Stores water and nutrients

22.

Which organelle acts as a warehouse in the cell?

a)

Nucleus

b)

Vacuoles

c)

Ribosomes

d)

Cell membrane

23.
What are the labeled parts of the cell?
a)Mitochondria
b)Nucleus
c)Cell Membrane
d)Vacuole
e)Cytoplasm
1
2
3
4
5
1)
2)
3)
4)
5)
24.

Which is the correct spelling for the plural version?

a)

Mitochondria

b)

Mitocondrion

c)

Mitochondrion

d)

Metochondrion

25.

What is the main function of the vacuole in plant cells?

a)

To produce energy

b)

To store water and nutrients

c)

To control cell division

d)

To synthesize proteins

26.

Which structure surrounds the cell and provides support and protection in plant cells?

a)

Cell membrane

b)

Cell wall

c)

Nucleus

d)

Mitochondria

27.

Draw an animal cell with labeled organelles

28.

turns SUNLIGHT into food for PLANTS

a)

cell wall

b)

chloroplasts

c)

lysosome

d)

endoplasmic reticulum

29.

makes PROTEINS

a)

ribosomes

b)

endoplasmic reticulum

c)

cytoplasm

d)

mitochondria

30.

Select all that have cells

a)

wood

b)

rock

c)

human

d)

bacteria

e)

oxygen

31.
Select the mitochondria in the cell.
A
B
C
D
E
32-36.

Comparing Animal and Plant Cells

Animal and plant cells share many similarities, but they also have key differences in their structure. Both types of cells have a cell membrane, which acts as a protective barrier, but only plant cells have a rigid cell wall that provides extra support and shape. Inside the cells, organelles like the nucleus, mitochondria, and cytoplasm are present in both animal and plant cells, helping them function properly.

Plant cells have unique organelles that set them apart from animal cells. One of these is the chloroplast, which allows plants to perform photosynthesis and make their own food using sunlight. Another difference is the large central vacuole found in plant cells, which stores water and nutrients and helps maintain the cell's shape. These features are essential for plants to survive and grow.

Animal cells, on the other hand, rely on mitochondria for energy production. Mitochondria are often called the powerhouse of the cell because they convert food into energy that the cell can use. Unlike plant cells, animal cells do not have chloroplasts or a cell wall. Instead, their flexible cell membrane allows them to take on different shapes and adapt to their environment. These differences highlight how animal and plant cells are uniquely designed for their roles in nature.

32.

Which organelle is unique to plant cells and allows them to perform photosynthesis?

a)

Chloroplast

b)

Mitochondria

c)

Nucleus

d)

Cytoplasm

33.

What is the function of the large central vacuole in plant cells?

a)

Stores water and nutrients

b)

Produces energy

c)

Performs photosynthesis

d)

Acts as a protective barrier

34.

What is the main structural difference between animal and plant cells?

a)

Plant cells have a rigid cell wall

b)

Animal cells have chloroplasts

c)

Plant cells lack a nucleus

d)

Animal cells have a large central vacuole

35.

Why are mitochondria referred to as the powerhouse of the cell?

a)

They convert food into energy

b)

They store water and nutrients

c)

They perform photosynthesis

d)

They act as a protective barrier

36.

Which feature allows animal cells to adapt to their environment?

a)

Flexible cell membrane

b)

Rigid cell wall

c)

Chloroplast

d)

Large central vacuole

37.

Draw a plant cell and label the organelles

38.

Which organelle is known as the 'control center' of the cell?

a)

Nucleus

b)

Vacuole

c)

Cell wall

d)

Chloroplast

39.

What is the main function of ribosomes in a cell?

a)

To generate energy

b)

To protect the cell

c)

To store water

d)

To produce proteins

40.

Which structure helps maintain the shape and rigidity of plant cells?

a)

Cell wall

b)

Nucleus

c)

Cell membrane

d)

Mitochondria

41.

Name the part: Number 1

a)

Stage

b)

Eyepiece lens

c)

Barrel

d)

Diaphragm

42-46.

The Skeletal System: Structure and Function

The skeletal system is made up of different types of bones, each with unique functions. Long bones, like those in the arms and legs, help with movement, while flat bones, such as the skull, protect vital organs. Short bones provide stability, and irregular bones, like the vertebrae, support the body. Together, these bones form the framework of the human body.

Major bones in the body include the skull, spine, ribs, and limbs. Joints connect these bones and allow movement, such as bending and rotating. For example, the knee joint helps us walk, and the shoulder joint lets us lift and rotate our arms. Joints are supported by ligaments and cartilage, which keep them strong and flexible.

Bone growth and development begin early in life and continue as we grow. Bones also protect important parts of the body, like the brain and heart. However, the skeletal system can face problems, such as fractures, arthritis, and osteoporosis. Taking care of our bones through exercise and a healthy diet helps keep the skeletal system strong and healthy.

42.

What type of bones help with movement in the skeletal system?

a)

Long bones

b)

Flat bones

c)

Short bones

d)

Irregular bones

43.

Which part of the skeletal system protects vital organs like the brain and heart?

a)

Flat bones

b)

Long bones

c)

Short bones

d)

Irregular bones

44.

What connects bones and allows movement in the skeletal system?

a)

Joints

b)

Ligaments

c)

Cartilage

d)

Muscles

45.

Which joint helps us lift and rotate our arms?

a)

Shoulder joint

b)

Knee joint

c)

Elbow joint

d)

Hip joint

46.

What is a common problem faced by the skeletal system?

a)

Fractures

b)

Diabetes

c)

Asthma

d)

Hypertension

47-51.

How the Skeletal, Muscle, and Nervous Systems Work Together

The skeletal system provides the framework for the human body. It supports and protects vital organs like the heart and lungs. Bones also help the body move by working with muscles. Inside bones, there is a substance called marrow that makes blood cells. Without the skeletal system, the body would not have its shape or strength.

Muscles are responsible for movement and come in three types: skeletal, smooth, and cardiac. Skeletal muscles are attached to bones and help us move. Smooth muscles are found in places like the stomach and help with digestion. Cardiac muscles are special because they make the heart pump blood. Muscles work by contracting and relaxing, which allows the body to perform different actions.

The nervous system controls everything in the body. It has two main parts: the brain and the spinal cord. The brain sends messages to the body through nerves, telling it what to do. The spinal cord acts like a highway, carrying signals between the brain and the rest of the body. Together, the nervous system helps us think, feel, and react to the world around us.

47.

What does the skeletal system provide for the human body?

a)

Framework and support

b)

Digestion

c)

Blood circulation

d)

Nerve signals

48.

Which type of muscle is responsible for pumping blood in the human body?

a)

Skeletal muscle

b)

Smooth muscle

c)

Cardiac muscle

d)

Marrow muscle

49.

What is the role of the spinal cord in the nervous system?

a)

It pumps blood

b)

It carries signals between the brain and the body

c)

It helps with digestion

d)

It produces blood cells

50.

Where are smooth muscles found in the human body?

a)

Attached to bones

b)

In the stomach

c)

In the heart

d)

Inside the brain

51.

What substance inside bones is responsible for making blood cells?

a)

Marrow

b)

Calcium

c)

Cartilage

d)

Nerves

52.

Match the following

a)

Support

1.

Allow the body to stand up

b)

Protection

2.

Rib cage surrounds heart and lungs

c)

Movement

3.

Joints let us bend

d)

Making blood cells

4.

Flow through bones to deliver oxygen

53.

What is the main function of the skeletal system?

a)

Provides support and protection

b)

Connects muscle to bone

c)

Cushions between bones

d)

Connects bone to bone

54.

What do ligaments connect?

a)

Muscle to bone

b)

Bone to bone

c)

Cushions between bones

d)

Muscle to muscle

55.

What is the role of tendons in the body?

a)

Connect bone to bone

b)

Connect muscle to bone

c)

Provide support and protection

d)

Cushion between bones

56.

What does cartilage do in the body?

a)

Connect muscle to bone

b)

Provide support and protection

c)

Cushion between bones

d)

Connect bone to bone

57.

What is the main job of the muscular system?

a)

To protect the body from diseases

b)

To move the body

c)

To produce energy

d)

To digest food

58.

Which of the following is NOT a role of the skeletal system?

a)

Providing support to the body

b)

Protecting internal organs

c)

Producing hormones

d)

Helping with movement

59.

What do the terms "contract" and "relax" refer to in the muscular system?

a)

The process of digestion

b)

The movement of muscles

c)

The growth of bones

d)

The production of energy

60.

Which type of muscle tissue is found in the heart?

a)

Skeletal muscle

b)

Cardiac muscle

c)

Smooth muscle

d)

Voluntary muscle

61.

What is the difference between voluntary and involuntary muscles?

a)

Voluntary muscles work automatically, while involuntary muscles are controlled by the brain.

b)

Voluntary muscles are controlled consciously, while involuntary muscles work automatically.

c)

Voluntary muscles are found in the heart, while involuntary muscles are found in the arms.

d)

Voluntary muscles are smooth, while involuntary muscles are skeletal.

62.

What is the main job of muscles in the body?

a)

To push bones

b)

To pull on bones

c)

To make bones longer

d)

To make bones softer

63.

What happens to your bicep when you bend your arm?

a)

It relaxes and gets soft

b)

It contracts and gets hard

c)

It becomes longer and softer

d)

It stops working

64.

What does the term "contract" mean in relation to muscles?

a)

The muscle gets shorter and tighter

b)

The muscle gets longer and softer

c)

The muscle stops moving

d)

The muscle pushes bones

65.

What does the term "relax" mean in relation to muscles?

a)

The muscle gets shorter and tighter

b)

The muscle returns to its longer, softer state

c)

The muscle pushes bones

d)

The muscle stops working

66.

Which of the following is an example of an involuntary muscle action?

a)

Smiling.

b)

Writing.

c)

Heart beating.

d)

Kicking a ball.

67.

What is the main difference between voluntary and involuntary muscles?

a)

Voluntary muscles work automatically, while involuntary muscles are consciously controlled.

b)

Voluntary muscles are consciously controlled, while involuntary muscles work automatically.

c)

Voluntary muscles are stronger than involuntary muscles.

d)

Voluntary muscles are used for breathing, while involuntary muscles are used for digestion.

68.

Which of the following is NOT an example of a voluntary muscle action?

a)

Smiling.

b)

Kicking a ball.

c)

Writing.

d)

Stomach digesting food.

69.

Where is cardiac muscle found in the body?

a)

In the stomach

b)

In the heart

c)

In the intestines

d)

In the blood vessels

70.

Which type of muscle works slowly to move food and control blood flow?

a)

Skeletal muscle

b)

Smooth muscle

c)

Cardiac muscle

d)

Voluntary muscle

71.

What is a characteristic of cardiac muscle?

a)

It is voluntary and striated.

b)

It is found in internal organs.

c)

It never gets tired and pumps blood.

d)

It moves food through the stomach.

72.

What is the primary function of the muscular system in the human body?

a)

To provide oxygen to the body

b)

To support movement and maintain posture

c)

To digest food

d)

To produce hormones

73.

Which type of muscle is responsible for voluntary movements in the human body?

a)

Cardiac muscle

b)

Skeletal muscle

c)

Smooth muscle

d)

Involuntary muscle

74.

What is the role of tendons in the muscular system?

a)

To connect muscles to bones

b)

To produce energy for muscles

c)

To protect internal organs

d)

To transport nutrients to muscles

75.

Which type of muscle is involved when you "give your biggest, cheesiest smile"?

a)

Voluntary muscle

b)

Involuntary muscle

c)

Cardiac muscle

d)

Skeletal muscle

76.

What type of muscle is used when you "take a deep breath and let it out slowly"?

a)

Voluntary muscle

b)

Involuntary muscle

c)

Cardiac muscle

d)

Smooth muscle

77.

Which type of muscle is used when you "pretend to drink a thick milkshake through a straw"?

a)

Voluntary muscle

b)

Involuntary muscle

c)

Cardiac muscle

d)

Smooth muscle

78.

What connects muscle to bone?

a)

Ligament

b)

Tendon

c)

Cartilage

d)

Muscle fiber

79.

When a muscle gets shorter, we say it (a)   .

80.

What type of muscle is found only in the heart?

a)

Skeletal

b)

Smooth

c)

Cardiac

d)

Voluntary

81.

Is the muscle that helps you blink voluntary or involuntary?

a)

Voluntary

b)

Involuntary

c)

Both

d)

Neither

82.

Understanding the muscular system is important for athletes because it helps them:

a)

Train safely, prevent injuries, and build strength

b)

Increase flexibility in bones

c)

Improve digestion

d)

Enhance brain function

83.

Which statement best defines a biome?

a)

A small habitat with one species only

b)

A large area with unique climate and life

c)

An island with the same weather everywhere

d)

A city where plants are grown indoors

84.

Looking at the images of Forest, Desert, and Tundra, which factor links biomes to the plants and animals that live there?

a)

Number of mountains nearby

b)

Colors of the landscape

c)

Time of day affects behavior

d)

Climate shapes living things

85.

If you remove your blindfold and feel hot, very dry air with sand dunes around you, which biome are you most likely in?

a)

Rainforest with tall wet trees

b)

Desert with dry sandy dunes

c)

Freshwater with slow rivers

d)

Taiga with snowy conifers

86.

Which sensory clue would help identify a rainforest biome?

a)

Wide grasslands and few trees

b)

Salt water and coral reefs

c)

Tall trees and humid air

d)

Cold winds and frozen ground

87.

A biome is described as having specific climate, plant life, and animal species. What is the main reason organisms differ between biomes?

a)

Biomes change every single day

b)

Climate conditions shape adaptations

c)

Animals prefer random locations

d)

Soil is the same in all biomes

88.

Which example correctly matches a biome with typical organisms?

a)

Grassland with coral and sea fish

b)

Desert with monkeys and tall trees

c)

Rainforest with cacti and lizards

d)

Desert with cacti and lizards

89.

You see wide open land with grasses, few trees, and many grazing animals. Using evidence, which biome is most likely?

a)

Tundra with frozen ground

b)

Marine with deep oceans

c)

Grassland with open prairies

d)

Taiga with snowy forests

90.

Look at the flower photo and the list beside it. Which item is a biotic factor because it is living or once-living?

a)

Sunlight from the sky

b)

Rocks by the stream

c)

Cold air and wind

d)

Fallen leaves on ground

91.

Which item in the canyon scene is an abiotic factor because it is non-living?

a)

Bacteria in soil

b)

Worms under rocks

c)

Buzzing bees nearby

d)

Temperature shown by thermometer

92.

Choose the best definition of biotic factors shown in the left panel.

a)

Non-living parts of environments

b)

Living or once-living parts

c)

Only things made of rocks

d)

Only air, water, and light

93.

From the circle icons page, which group is entirely abiotic factors?

a)

Air, light, water

b)

Plants, animals, fungi

c)

Bacteria, protists, archaea

d)

Soil, temperature, minerals

94.

A student finds worms in soil under a plant. Which classification is correct for the worms?

a)

Abiotic, because they are dirt

b)

Biotic, because they are living

c)

Abiotic, because they are tiny

d)

Biotic, because they are rocks

95.

Which pair shows one biotic and one abiotic factor together?

a)

Flower and sunlight

b)

Air and water

c)

Rocks and temperature

d)

Light and humidity

96.

In the biome collage, which biome’s obvious abiotic factor is sand dunes shaped by wind?

a)

Desert with sand hills

b)

Marine with coral fish

c)

Rainforest with thick trees

d)

Taiga with snowy pines

97.

In the marine photo, which is a biotic factor affecting the ecosystem there?

a)

Salinity of seawater

b)

Light from the sun

c)

Fish swimming in reef

d)

Water temperature level

98.

Which sentence best describes an adaptation in living things?

a)

A feature that helps survival in a place

b)

A habit that makes animals play games

c)

A change that always happens overnight

d)

A behavior that makes food taste better

99.

Look at the polar bear in the icy scene. Which trait helps it survive in the freezing Arctic?

a)

Thin skin for cooling fast

b)

Thick fur for keeping warmth

c)

Short legs for slow walking

d)

Bright colors for looking pretty

100.

Which adaptation would most help a duck swim faster across a pond?

a)

Sharp claws on front feet

b)

Thick fur for staying warm

c)

Webbed feet for pushing water

d)

Long neck for reaching leaves

101.

A bird eats hard seeds. Which beak shape is the best match?

a)

Long, narrow beak for insects

b)

Short, strong beak for seeds

c)

Flat, wide beak for leaves

d)

Curved beak for soft fruit

102.

Which plant adaptation helps a tree survive in dry soil by reaching water further down?

a)

Deep roots under the ground

b)

Bright flowers on branches

c)

Smooth bark on the trunk

d)

Large leaves near the top

103.

A bird with a long, narrow beak is most likely adapted to eat which food?

a)

Insects hiding in small spaces

b)

Floating leaves on wide ponds

c)

Heavy seeds with hard shells

d)

Soft buds from thick stems

104.

Which statement explains why thick fur is helpful for animals living in cold places?

a)

It makes running faster on ice

b)

It traps heat close to the body

c)

It changes fur color every season

d)

It helps animals grow larger claws

105.

A frog blends in with green leaves and stays still to avoid predators. Which two words name this type of adaptation and behavior?

a)

Camouflage and hiding

b)

Hibernation and jumping

c)

Photosynthesis and sunning

d)

Migration and swimming

106.

Which statement best describes an abiotic factor?

a)

A predator hunting smaller animals

b)

A fungus growing on a fallen log

c)

A plant competing for soil space

d)

Temperature changing with the seasons

107.

What adaptation helps a polar bear survive in its environment?

a)

Thin skin for warm beaches

b)

Bright flowers to attract bees

c)

Long neck for high leaves

d)

Thick fur for extreme cold

108.

Why do cacti have thick stems in desert biomes?

a)

To store extra water in dry air

b)

To make shade for tall trees

c)

To keep predators far away

d)

To hold many colorful petals

109.

Which environmental factor mainly affects how fast a plant grows?

a)

Sunlight reaching the leaves

b)

Birds nesting on branches

c)

Bugs crawling on roots

d)

Loud sounds near the stem

110.

A zebra finch lives where the ground is sandy and water is scarce. Which adaptation would most help this bird?

a)

Webbed feet for deep lakes

b)

Bright tail for night flying

c)

Long whiskers for sensing wind

d)

Beak suited to cracking dry seeds

111.

Which factor most directly influences an animal’s health and size?

a)

Sunlight hours each day

b)

Nutrition from available food

c)

Shape of nearby mountains

d)

Amount of surrounding rocks

112.

If a cold snap lowers temperatures in a forest for weeks, what change is most likely for local animals?

a)

Grow faster due to heat

b)

Make more pollen for bees

c)

Need thicker fur or shelter

d)

Lose water through stems

113.

What is the main function of the skeletal system?

a)

Provides support and protection

b)

Connects muscle to bone

c)

Cushions between bones

d)

Connects bone to bone

114.

What do ligaments connect?

a)

Muscle to bone

b)

Bone to bone

c)

Cushions between bones

d)

Muscle to muscle

115.

What is the role of tendons in the body?

a)

Connect bone to bone

b)

Connect muscle to bone

c)

Provide support and protection

d)

Cushion between bones

116.

What does cartilage do in the body?

a)

Connect muscle to bone

b)

Provide support and protection

c)

Cushion between bones

d)

Connect bone to bone

117.

What is the main job of the muscular system?

a)

To protect the body from diseases

b)

To move the body

c)

To produce energy

d)

To digest food

118.

Which of the following is NOT a role of the skeletal system?

a)

Providing support to the body

b)

Protecting internal organs

c)

Producing hormones

d)

Helping with movement

119.

What do the terms "contract" and "relax" refer to in the muscular system?

a)

The process of digestion

b)

The movement of muscles

c)

The growth of bones

d)

The production of energy

120.

Which type of muscle tissue is found in the heart?

a)

Skeletal muscle

b)

Cardiac muscle

c)

Smooth muscle

d)

Voluntary muscle

121.

What is the difference between voluntary and involuntary muscles?

a)

Voluntary muscles work automatically, while involuntary muscles are controlled by the brain.

b)

Voluntary muscles are controlled consciously, while involuntary muscles work automatically.

c)

Voluntary muscles are found in the heart, while involuntary muscles are found in the arms.

d)

Voluntary muscles are smooth, while involuntary muscles are skeletal.

122.

What is the main job of muscles in the body?

a)

To push bones

b)

To pull on bones

c)

To make bones longer

d)

To make bones softer

123.

What happens to your bicep when you bend your arm?

a)

It relaxes and gets soft

b)

It contracts and gets hard

c)

It becomes longer and softer

d)

It stops working

124.

What does the term "contract" mean in relation to muscles?

a)

The muscle gets shorter and tighter

b)

The muscle gets longer and softer

c)

The muscle stops moving

d)

The muscle pushes bones

125.

What does the term "relax" mean in relation to muscles?

a)

The muscle gets shorter and tighter

b)

The muscle returns to its longer, softer state

c)

The muscle pushes bones

d)

The muscle stops working

126.

Which of the following is an example of an involuntary muscle action?

a)

Smiling.

b)

Writing.

c)

Heart beating.

d)

Kicking a ball.

127.

What is the main difference between voluntary and involuntary muscles?

a)

Voluntary muscles work automatically, while involuntary muscles are consciously controlled.

b)

Voluntary muscles are consciously controlled, while involuntary muscles work automatically.

c)

Voluntary muscles are stronger than involuntary muscles.

d)

Voluntary muscles are used for breathing, while involuntary muscles are used for digestion.

128.

Which of the following is NOT an example of a voluntary muscle action?

a)

Smiling.

b)

Kicking a ball.

c)

Writing.

d)

Stomach digesting food.

129.

Where is cardiac muscle found in the body?

a)

In the stomach

b)

In the heart

c)

In the intestines

d)

In the blood vessels

130.

Which type of muscle works slowly to move food and control blood flow?

a)

Skeletal muscle

b)

Smooth muscle

c)

Cardiac muscle

d)

Voluntary muscle

131.

What is a characteristic of cardiac muscle?

a)

It is voluntary and striated.

b)

It is found in internal organs.

c)

It never gets tired and pumps blood.

d)

It moves food through the stomach.

132.

What is the primary function of the muscular system in the human body?

a)

To provide oxygen to the body

b)

To support movement and maintain posture

c)

To digest food

d)

To produce hormones

133.

Which type of muscle is responsible for voluntary movements in the human body?

a)

Cardiac muscle

b)

Skeletal muscle

c)

Smooth muscle

d)

Involuntary muscle

134.

What is the role of tendons in the muscular system?

a)

To connect muscles to bones

b)

To produce energy for muscles

c)

To protect internal organs

d)

To transport nutrients to muscles

135.

Which type of muscle is involved when you "give your biggest, cheesiest smile"?

a)

Voluntary muscle

b)

Involuntary muscle

c)

Cardiac muscle

d)

Skeletal muscle

136.

What type of muscle is used when you "take a deep breath and let it out slowly"?

a)

Voluntary muscle

b)

Involuntary muscle

c)

Cardiac muscle

d)

Smooth muscle

137.

Which type of muscle is used when you "pretend to drink a thick milkshake through a straw"?

a)

Voluntary muscle

b)

Involuntary muscle

c)

Cardiac muscle

d)

Smooth muscle

138.

What connects muscle to bone?

a)

Ligament

b)

Tendon

c)

Cartilage

d)

Muscle fiber

139.

When a muscle gets shorter, we say it (a)   .

140.

What type of muscle is found only in the heart?

a)

Skeletal

b)

Smooth

c)

Cardiac

d)

Voluntary

141.

Is the muscle that helps you blink voluntary or involuntary?

a)

Voluntary

b)

Involuntary

c)

Both

d)

Neither