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Cell Organelles, Organ Systems, Diffusion and Osmosis

Total questions: 117

Worksheet time: 1hrs 18mins

Name
Class
Date
1.

A scientist removes the mitochondria from a cell. Which process would be MOST affected?

a)

Protein synthesis

b)

Energy production

c)

Waste removal

d)

Cell communication

2.

If the nucleus of a cell is damaged, which activity will most likely stop?

a)

Respiration

b)

Cell division

c)

Diffusion

d)

Transport of oxygen

3.

Ribosomes are often compared to factories in a city because they ____.

a)

Control all activities

b)

Produce energy

c)

Make proteins

d)

Store materials

4.

Which organelle acts like a “city wall” by controlling what enters and leaves the cell?

a)

Cytoplasm

b)

Cell membrane

c)

Vacuole

d)

Nucleus

5.

A plant cell wilts when it loses water. Which organelle is MOST responsible for storing water?

a)

Mitochondria

b)

Ribosome

c)

Vacuole

d)

Nucleus

6.

Why do plant cells have chloroplasts but animal cells do not?

a)

Animals do not need oxygen

b)

Plants make their own food

c)

Animals cannot store energy

d)

Plants do not need mitochondria

7.

Which statement BEST explains the role of cytoplasm?

a)

It produces energy

b)

It protects DNA

c)

It is where organelles carry out reactions

d)

It controls cell activities

8.

If ribosomes stop working, what will happen to the organism?

a)

It cannot breathe

b)

It cannot digest food

c)

It cannot make proteins

d)

It cannot transport blood

9.

Which combination correctly shows organelles found ONLY in plant cells?

a)

Nucleus and ribosome

b)

Mitochondria and membrane

c)

Cell wall and chloroplast

d)

Vacuole and cytoplasm

10.

The “cell as a city” analogy shows that if the power plant fails, the cell will lose its ____.

a)

Structure

b)

Energy

c)

Information

d)

Protection

11.

Which organs work together to absorb nutrients from food?

a)

Lungs and heart

b)

Stomach and intestines

c)

Kidneys and bladder

d)

Brain and nerves

12.

What will MOST likely happen if the respiratory system does not function properly?

a)

Waste cannot be removed

b)

Muscles cannot move

c)

Oxygen cannot reach cells

d)

Blood cannot clot

13.

The circulatory system supports other systems mainly by ____.

a)

Producing enzymes

b)

Transporting substances

c)

Breaking down food

d)

Sending nerve signals

14.

Which organ system controls body responses and coordination?

a)

Digestive

b)

Nervous

c)

Muscular

d)

Excretory

15.

If kidneys fail to work properly, what is the MOST dangerous effect?

a)

Muscle cramps

b)

Waste builds up in blood

c)

Food is not digested

d)

Bones become weak

16.

Why are the muscular and skeletal systems interdependent?

a)

Both remove waste

b)

Both transport oxygen

c)

Muscles need bones to move the body

d)

Bones need muscles to produce blood

17.

Which organ belongs to BOTH the respiratory and circulatory systems?

a)

Lung

b)

Heart

c)

Blood

d)

Trachea

18.

Damage to the nervous system would MOST affect which ability?

a)

Chewing food

b)

Thinking and reacting

c)

Breathing air

d)

Digesting nutrients

19.

What happens if the digestive system stops working?

a)

Oxygen cannot enter the body

b)

Waste cannot be filtered

c)

Cells lack nutrients and energy

d)

Muscles stop contracting

20.

Which statement BEST describes the relationship between organ systems?

a)

Each system works alone

b)

Systems compete with each other

c)

Systems work together to maintain life

d)

Only one system is important

21.

Diffusion is the movement of particles from ____.

a)

Low concentration to high concentration

b)

High concentration to low concentration

c)

Inside to outside only

d)

Liquid to solid

22.

Osmosis differs from diffusion because osmosis involves the movement of ____.

a)

Oxygen

b)

Salt

c)

Water

d)

Protein

23.

When perfume spreads across a room, this is an example of ____.

a)

Osmosis

b)

Respiration

c)

Diffusion

d)

Absorption

24.

A red blood cell placed in pure water swells because ____.

a)

Salt leaves the cell

b)

Water enters the cell

c)

Protein breaks down

d)

Oxygen diffuses in

25.

Why is diffusion important for cells?

a)

It allows cells to make food

b)

It helps move substances without energy

c)

It stores genetic material

d)

It produces waste

26.

Which situation BEST shows osmosis in daily life?

a)

Sugar dissolving in tea

b)

Smell of food spreading

c)

Raisins swelling in water

d)

Air entering lungs

27.

If a cell is placed in a salty solution, what will likely happen?

a)

It swells

b)

It bursts

c)

It shrinks

d)

It divides

28.

The movement of oxygen from lungs into blood occurs mainly by _____.

a)

Osmosis

b)

Diffusion

c)

Active transport

d)

Filtration

29.

Why does osmosis require a semi-permeable membrane?

a)

To block all substances

b)

To allow only water to pass

c)

To allow all substances to pass

d)

To produce energy

30.

Which statement BEST compares diffusion and osmosis?

a)

Both require energy

b)

Both move particles against concentration

c)

Osmosis is a type of diffusion involving water

d)

Diffusion only occurs in living cells

31.

In a food chain, which organism is ALWAYS the first level?

a)

Consumer

b)

Decomposer

c)

Producer

d)

Predator

32.

Grass → Deer → Lion shows the flow of _____.

a)

Matter only

b)

Energy

c)

Water

d)

Oxygen

33.

What happens to energy as it moves up a food chain?

a)

It increases

b)

It stays the same

c)

It decreases

d)

It disappears completely

34.

Which organism breaks down dead plants and animals?

a)

Producer

b)

Herbivore

c)

Carnivore

d)

Decomposer

35.

A food web is more stable than a food chain because _____.

a)

It has fewer organisms

b)

It has only producers

c)

It has many feeding relationships

d)

It has no predators

36.

If all producers disappear, what will happen to the ecosystem?

a)

Only carnivores survive

b)

Consumers will lack energy

c)

Decomposers increase energy

d)

Food web becomes stronger

37.

What is MOST likely to happen if predators suddenly increase in number?

a)

Prey population increases

b)

Producers disappear

c)

Prey population decreases

d)

Energy flow stops

38.

Which organism can be both a consumer and prey?

a)

Grass

b)

Rabbit

c)

Mushroom

d)

Algae

39.

Why are decomposers important in ecosystems?

a)

They produce food

b)

They control climate

c)

They recycle nutrients

d)

They hunt prey

40.

If one species goes extinct, the food web may _____.

a)

Remain unchanged

b)

Become unstable

c)

Stop energy flow completely

d)

Increase producers

41.

Bees and flowers show interdependence because _____.

a)

Bees protect flowers

b)

Flowers eat bees

c)

Bees get nectar and help pollination

d)

Flowers depend only on water

42.

Why is balance important in an ecosystem?

a)

To stop evolution

b)

To increase predators

c)

To keep populations stable

d)

To reduce sunlight

43.

Global warming refers to the _____.

a)

Cooling of Earth

b)

Increase in Earth’s average temperature

c)

Natural change of seasons

d)

Movement of tectonic plates

44.

Which human activity contributes MOST to global warming?

a)

Recycling waste

b)

Using renewable energy

c)

Burning fossil fuels

d)

Planting trees

45.

One effect of global warming is _____.

a)

More forests

b)

Rising sea levels

c)

Decreased temperature

d)

Stable climate

46.

Deforestation affects ecosystems by _____.

a)

Increasing biodiversity

b)

Destroying habitats

c)

Improving soil quality

d)

Reducing carbon dioxide

47.

Why does deforestation increase global warming?

a)

Trees release oxygen

b)

Trees absorb carbon dioxide

c)

Trees increase rainfall

d)

Trees produce heat

48.

Which action helps reduce environmental damage?

a)

Cutting more trees

b)

Using plastic bags

c)

Saving energy

d)

Burning waste

49.

If forests disappear, animals will MOST likely _____.

a)

Adapt instantly

b)

Lose food and shelter

c)

Increase in population

d)

Become producers

50.

Which statement BEST shows interdependence between humans and the environment?

a)

Humans do not need nature

b)

Nature depends only on humans

c)

Humans rely on nature for resources

d)

Humans can replace ecosystems

51.

Which of the following part of plants considered as the reproductive organ?

a)

The stem

b)

The leaf

c)

The flower

d)

The bud

52.

Below are the type of root systems in plants, except...

a)

Lateral root

b)

Fibrous root

c)

Side root

d)

Tap root

53.

Mangrove trees have characteristics of root which grow upwards to the surface of the water. What is the function of this process?

a)

The root is looking for the source of water since water is important for photosynthesis

b)

It gives the mangrove trees the firm structure to hold a whole tree as an adaptive feature in mud environment

c)

The root is looking for oxygen in the air, because inside of the mud, there is little oxygen available

d)

The root is looking for sunlight and converted it to gives energy for plant

54.

Which of the following organs are part of the circulatory system?

a)

Heart

b)

Artery

c)

Veins

d)

Lungs

55.

What is the name of the bone number 14?

a)

Vertebra

b)

Humerus

c)

Femur

d)

Fibula

56.

We can move and do activities everyday because there is a contraction of tissues in our body. What is the name of the tissue?

a)

Bones

b)

Ligaments

c)

Cartilages

d)

Muscles

57.

What is the name of organ number 5 from the following diagram?

a)

Trachea

b)

Alveolus

c)

Bronchiolus

d)

Bronchus

58.

In which part of digestive system from the following diagram, the food is churned up into a creamy liquid called chyme?

a)

1

b)

3

c)

4

d)

5

59.
A young boy cuts his hand on a piece of glass. To prevent infection, white blood cells travel to the site of the cut through the bloodstream. During this response to injury, the circulatory system works with which body system?
a)
Muscular system
b)
Integumentary system
c)
Excretory system
d)
Immune system
60.

Olympic sprinters undergo increased heart and breathing rates while competing. Which of the following best describes the interactions among systems of a sprinter?

a)

Respiratory system is working to obtain more oxygen, while the circulatory system works to transport the oxygen to the muscles.

b)

The digestive system takes in more glucose, while the excretory system removes waste.

c)

The endocrine system transports ATP to the nervous system

d)

Excretory system removes waste from the digestive system to reduce weight so the sprinter can run faster

61.

Which two systems interact so the kidneys filter cellular waste out of blood for removal?

a)

circulatory and endocrine

b)

respiratory and circulatory

c)

digestive and respiratory

d)

circulatory and urinary

62.
What organ is C pointing to?
a)
Ureters
b)
Bladder
c)
Kidney
d)
Urethra
63.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

64.

Sends information about your surroundings to your brain

a)

Integumentary System

b)

Cardiovascular System

c)

Respiratory System

d)

Nervous System

65.

your skin, protects your body from injury and can help relay information to your brain

a)

Integumentary system

b)

Endocrine system

c)

Nervous system

d)

Circulatory system

66.

Cell Membrane

a)

maintains homeostasis by controlling what enters and leaves the cell

b)

suspends the organelles and provides an environment for chemical reactions within the cell

c)

makes proteins

d)

provides structure for cells and movement of organelles

67.

Cytoplasm

a)

maintains homeostasis by controlling what enters and leaves the cell

b)

suspends the organelles and provides an environment for chemical reactions within the cell

c)

makes proteins

d)

provides structure for cells and movement of organelles

68.

Ribosome

a)

maintains homeostasis by controlling what enters and leaves the cell

b)

suspends the organelles and provides an environment for chemical reactions within the cell

c)

makes proteins

d)

provides structure for cells and movement of organelles

69.

Cytoskeleton

a)

maintains homeostasis by controlling what enters and leaves the cell

b)

suspends the organelles and provides an environment for chemical reactions within the cell

c)

makes proteins

d)

provides structure for cells and movement of organelles

70.

Nucleus

a)

stores genetic information (DNA)

b)

makes and transports proteins

c)

makes lipids and membranes (also detoxifies and stores calcium)

d)

modifies, sorts, and ships proteins

71.

Rough Endoplasmic Reticulum

a)

stores genetic information (DNA)

b)

makes and transports proteins

c)

makes lipids and membranes (also detoxifies and stores calcium)

d)

modifies, sorts, and ships proteins

72.

Smooth Endoplasmic Reticulum

a)

stores genetic information (DNA)

b)

makes and transports proteins

c)

makes lipids and membranes (also detoxifies and stores calcium)

d)

modifies, sorts, and ships proteins

73.

Golgi Bodies

a)

stores genetic information (DNA)

b)

makes and transports proteins

c)

makes lipids and membranes (also detoxifies and stores calcium)

d)

modifies, sorts, and ships proteins

74.

Mitochondria

a)

creates energy (ATP) from food; site of cellular respiration

b)

stores food, water, or wastes with the cell; plant cells have a special vacuole

c)

uses enzymes to digest bacteria, viruses, and old organelles (old cell parts are recycled)

d)

create special structures called spindle fibers that are used in cell division

75.

Vacuole

a)

creates energy (ATP) from food; site of cellular respiration

b)

stores food, water, or wastes with the cell; plant cells have a special vacuole

c)

uses enzymes to digest bacteria, viruses, and old organelles (old cell parts are recycled)

d)

create special structures called spindle fibers that are used in cell division

76.

Lysosome

a)

creates energy (ATP) from food; site of cellular respiration

b)

stores food, water, or wastes with the cell; plant cells have a special vacuole

c)

uses enzymes to digest bacteria, viruses, and old organelles (old cell parts are recycled)

d)

create special structures called spindle fibers that are used in cell division

77.

Centrosome/Centrioles

a)

creates energy (ATP) from food; site of cellular respiration

b)

stores food, water, or wastes with the cell; plant cells have a special vacuole

c)

uses enzymes to digest bacteria, viruses, and old organelles (old cell parts are recycled)

d)

create special structures called spindle fibers that are used in cell division

78.

Cell Wall

a)

provides shape, structure, and protection for the cell

b)

site of photosynthesis; uses the sun's energy to produce food

c)

stores water in order to maintain plant shape (if a plant needs water, it wilts)

d)

site of cellular respiration

79.

Chloroplast

a)

provides shape, structure, and protection for the cell

b)

site of photosynthesis; uses the sun's energy to produce food

c)

stores water in order to maintain plant shape (if a plant needs water, it wilts)

d)

site of cellular respiration

80.

Central Vacuole

a)

provides shape, structure, and protection for the cell

b)

site of photosynthesis; uses the sun's energy to produce food

c)

stores water in order to maintain plant shape (if a plant needs water, it wilts)

d)

site of cellular respiration

81.

In what organelle is the genetic material found inside?

a)

Endoplasmic Reticulum

b)

Golgi Complex

c)

Nucleolus

d)

Nucleus

82.

What organelle is called the "powerhouse" of a cell?

a)

Endoplasmic Reticulum

b)

Nucleus

c)

Mitochondria

d)

Nucleolus

83.

What is the function of the mitochondria?

a)

Structure that manufactures ribosomes

b)

Structures that converts nutrients to energy

c)

Stack of membranes that packages chemicals

d)

Structure that contains DNA and directs the cell

84.
I store water in both plant and animal cells. What am I?
a)
cytoplasm
b)
ribosomes
c)
vacuole
d)
lysosomes
85.

I make proteins for the cell. What am I?

a)

ribosome

b)

mitochondria

c)

chloroplast

d)

lysosome

86.
The two kinds of cells are Prokaryotes and Eukaryotes. How are they different?
a)
Prokaryotes have a nucleus.
b)
Eukaryotes have a nucleus.
c)
Prokaryotes are plant cells.
d)
There is no difference.
87.
What can only be found in plant cells?
a)
Cell membrane
b)
Vacuole
c)
Chloroplast
d)
Mitochondrion
88.
What cell part is NOT found in all cells?
a)
Cell Wall
b)
Cell Membrane
c)
Cytoplasm
d)
Genetic Material
89.
Which part of the cell is often called "the brain of the cell"?
a)
nuclear membrane
b)
endoplasmic reticulum
c)
nucleus
d)
mitochondria
90.
What is the name and function of the organelle displayed above?
a)
Mitochondria: breakdown glucose and produce ATP
b)
Chloroplast: converts solar energy into chemical energy
c)
Vacuole: Stores H2O, salt, food
d)
Nucleus: stores genetic information
91.

What is the function of the mitochondria?

a)

Structure that manufactures ribosomes

b)

Structures that converts nutrients to energy

c)

Stack of membranes that packages chemicals

d)

Structure that contains DNA and directs the cell

92.

The Cell Theory states - (select all that apply)

a)

The cell is the basic unit of life

b)

All cells are crested from existing cells

c)

All cells reproduce sexually

d)

All organisms are made from cells

93.

Regulates the entering and exiting on materials in the cell

a)

Cell Wall

b)

Cell Membrane

c)

Mitochondria

d)

Endoplasmic Reticulum

94.

Responsible for protein synthesis with ribosomes and lipid production -

a)

Mitochondria

b)

Endoplasmic Reticulum

c)

Lysosomes

d)

Chloroplast

95.

Gel-like substance that holds all organelles in place -

a)

Chloroplast

b)

Call wall

c)

Cytoplasm

d)

Lysosomes

96.

Stores water and nutrients for the cell

a)

Lysosomes

b)

Vacuole

c)

Chloroplast

d)

Cytoplasm

97.

Converts light energy into food for the plant and carbon dioxide into oxygen through Photosynthesis.

a)

Cytoplasm

b)

Chloroplast

c)

Mitochondria

d)

Cell Wall

98.
Gives the cell a rigid, box-like shape; outside of the cell membrane; in plants.
a)
cytoplasm
b)
chromatin
c)
cell wall
d)
cell membrane
99.
Which 2 organelles are only found in plant cells?
a)
chloroplast and mitochondria
b)
chloroplast and cell membrane
c)
mitochondria and cell wall
d)
chloroplast and cell wall
100.

gives the cell ENERGY

a)

mitochondria

b)

vacuole

c)

cytoplasm

d)

ribosomes

101.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
102.
Ideally, your cells should be in a(n) _______ solution
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Cola
103.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
104.
_______ regulates what enters and leaves a cell.  
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Cytoplasm
105.
Osmosis
a)
diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
b)
the diffusion of particles from an area of high concentration to an area of low concentration
c)
diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
d)
the diffusion of particles from an area of low concentration to an area of high concentration
106.
The cell below is in a _________ solution.
a)
Hypotonic
b)
Hypertonic
c)
Isotonic
107.
Which cell is placed into a hypotonic environment? 
a)
A
b)
B
c)
C
d)
D
108.
Which way will the water molecules move during osmosis?
a)
Out of the cell, so the cell shrinks.
b)
Out of the cell, so the cell swells.
c)
Into the cell, so the cell shrinks.
d)
Into the cell, so the cell swells.
109.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
110.
 An animal cell placed in a hypertonic (salty) solution will
a)
Stay the same
b)
Shrink- get smaller
c)
Swell- get bigger
111.
What is the definition of  Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration to a area of low concentration 
112.
What is the diffusion of water only across a cell or semi-permeable membrane?
a)
Osmosis
b)
Diffusion
c)
Active Transport
d)
Passive Transport
113.
What type of cellular transport uses energy?
a)
Passive Transport
b)
Active Transport
114.
In which case would a cell most likely shrink?
a)
when placed in a solution containing a high salt concentration
b)
when placed in a isotonic solution
c)
when placed in a solution containing a low pH
d)
when placed in a solution containing distilled water
115.
Active transport requires energy because...
a)
The cell is moving something against a concentration gradient
b)
The cell is moving something with a concentration gradient
116.
A student noticed that placing wilted lettuce in a bowl of cool water caused the lettuce to become more crisp and firm. What is the best explanation for his observation?
a)
Water moved into the lettuce cells by active transport.
b)
Water moved into the lettuce cells by osmosis.
c)
Salt moved into the lettuce cells by diffusion.
d)
Water moved out of the lettuce cells by osmosis.
117.
Diffusion and Osmosis are examples of...
a)
Active Transport
b)
Passive Transport

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