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Worksheets

Cells Ks3

Total questions: 179

Worksheet time: 2hrs 44mins

Name
Class
Date
1.

Reorder the Levels of Organization from smallest to largest

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

1)
2)
3)
4)
5)
2.

Tissues are made up of


(a)  
Choose from the below words
Cells
Organs
Organ Systems
Organelles
Tissue
Organisms
3.

Organs are made up of


(a)  
Choose from the below words
Tissues
Cells
Organ Systems
Organism
Organelles
Organs
4.

Organ Systems are made up of ​ (a)  

Choose from the below words
Organs
Cells
Tissues
Organisms
Organelles
Organ Systems
5.

Organisms are made up of


(a)  
Choose from the below words
Organ Systems
Organelles
Cells
Tissue
Organs
Organisms
6.

Which level is the least complex?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

7.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

8.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

9.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

10.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

11.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

12.

Which level is the most complex?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

13.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

14.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

15.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

16.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

17.

What level of organization does the following picture represent?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

e)

Organism

18.

Why do all cells not look the same? Why are they different shapes?

4 lines
19.

When a cell has a specific function or job it is called....

a)

specialized

b)

multitalented

c)

unicellular

d)

organism

20.

How are you feeling about Specialized Cells and the Levels of Organization?

4 lines
21.

What are groups of similar body cells working together called?

a)

specialised cells

b)

tissues

c)

organs

d)

organ systems

22.

When different tissues work together, they make up an...

a)

tissue

b)

brain

c)

organ

23.

Examples of organ systems are -

a)

circulatory system

b)

respiratory system

c)

muscular system

d)

nutrition system

e)

nervous system

24.

What is meant by flagellum?

a)

The tail of a unicellular organism

b)

The eyespot of a unicellular organism

c)

The food stores of the unicellular organism

25.

What is the function of the nerve cell?

a)

send and receive electrical signals to and from the brain

b)

send and receive parcels to and from the brain

c)

stop signals being sent to the brain

d)

send and receive oxygen to and from the brain

26.

Guess who I am? I am a jelly-like material that makes up the bulk of the cell. All chemical reactions occur here.

a)

Jellyfish

b)

cytoplasm

c)

chloroplasts

d)

vacuole

27.

Which cell does not contain a nucleus?

a)

palisade cell

b)

Phloem cell

c)

red blood cell

d)

nerve cell

28.

What is this cell under a microscope?

a)

animal cell

b)

plant cell

29.

What is the role of the nucleus in a cell?

a)

converts glucose and oxygen in the form of energy

b)

surrounds the cell and contains cytoplasm

c)

controls what goes in and out of the cell

d)

contains DNA which controls the reactions inside the cell

30.

Which organelle collects sunlight to make sugar during photosynthesis?

a)

cell wall

b)

cytoplasm

c)

chloroplasts

d)

cell membrane

31.

What is the function of the mitochondria?

a)

the site of photosynthesis

b)

absorbs energy from the sun to help the plant make glucose

c)

provides pressure for the cell, keeping it firm and in shape

d)

site for ATP (energy) production

32.

What two organelles are found in a plant cell but not in an animal cell?

a)

chloroplasts and cell membrane

b)

chloroplasts and cytoplasm

c)

chloroplasts and cell wall

d)

chloroplasts and mitochondria

33.

What magnification should you start with when using a light microscope?

a)

the lowest

b)

the middle

c)

the highest

d)

it doesn't matter

34.

How are multicellular and unicellular organisms different?

a)

Multicellular organisms have more than one cell and are smaller than unicellular organisms

b)

Unicellular organisms have one cell and are smaller than multicellular organisms.

c)

Multicellular organisms have one cell and are larger than unicellular organisms.

d)

Unicellular organisms have more than one cell and are larger than multicellular organisms

35.

Why should you use the fine focusing wheel instead of the coarse focusing wheel, when using a microscope?

a)

It easier to use

b)

Its closer

c)

To prevent breaking the slide

d)

It doesn't matter which one you use

36.
Which of these is a 'life process' carried out by all organisms?
a)
photosynthesis
b)
breathing
c)
fermentation
d)
respiration
37.
Two kingdoms that contain many unicellular microorganisms are:
a)
prokaryotes and protoctists.
b)
animals and plants.
c)
yeast and fungi.
d)
viruses and bacteria.
38.
Multicellular organisms need transport systems to carry materials to their cells because:
a)
diffusion is not fast enough to do this.
b)
diffraction is not fast enough to do this.
c)
dissolving is not fast enough to do this.
d)
dispersion is not fast enough to do this.
39.
One feature of all prokaryotes is that they:
a)
have chloroplasts.
b)
do not have nuclei.
c)
do not respire.
d)
do not have cytoplasm.
40.
Which of these is a food often made using yeast?
a)
chips
b)
cheese
c)
bread
d)
yoghurt
41.
Which of these shows the correct word equation for anaerobic respiration in yeast?
a)
oxygen + glucose -> carbon dioxide + water
b)
carbon dioxide + water -> oxygen + glucose
c)
glucose -> carbon dioxide + ethanol
d)
glucose + carbon dioxide -> oxygen + water
42.
Yeast reproduce by:
a)
binary fission
b)
binary fusion
c)
fermentation
d)
budding
43.
Three resources needed by all bacteria for growth are:
a)
warmth, food and moisture.
b)
light, carbon dioxide and glucose.
c)
oxygen, nitrogen and mould.
d)
darkness, moisture and nitrogen.
44.
A product of fermentation of milk by bacteria is:
a)
ethanol.
b)
oxygen.
c)
glucose.
d)
lactic acid.
45.
Three resources needed by algae for growth are:
a)
carbon dioxide, darkness, food.
b)
water, warmth, light.
c)
nitrogen, salt, water.
d)
oxygen, glucose, darkness.
46.
If the amount of light increases, then organisms that photosynthesise will produce more:
a)
oxygen.
b)
methane.
c)
carbon dioxide.
d)
hydrogen.
47.
Why is light important for photosynthesis?
a)
It transfers energy from the Sun.
b)
It lets the organisms see.
c)
It warms up the ground.
d)
It contains chlorophyll.
48.
A decomposer is:
a)
an organism that spends a lot of its time asleep.
b)
an organism that is used to remove poisons from contaminated soils.
c)
an organism that breaks down dead organisms and animal wastes.
d)
an organism that has ten legs.
49.
Examples of organic compounds include:
a)
sodium chloride, magnesium oxide and ammonium nitrate.
b)
fish, meat and eggs.
c)
water, oxygen and carbon dioxide.
d)
glucose, proteins and fats.
50.
Decomposers are important because they:
a)
allow recycling.
b)
do not produce very much carbon dioxide.
c)
can move very fast and escape from predators.
d)
produce oxygen.
51.
Which pair of processes both release the same products?
a)
fermentation and photosynthesis
b)
photosynthesis and aerobic respiration
c)
photosynthesis and combustion
d)
aerobic respiration and combustion
52.

This organelle holds genetic material and controls the cells activities

a)

Cell membrane

b)

Nucleus

c)

Cytoplasm

d)

Mitochondria

53.

Respiration happens in what organelle?

a)

Vacuole

b)

Chloroplasts

c)

Mitochondria

d)

Cytoplasm

54.

What organelle does an animal cell not contain

a)

Nucleus

b)

Cell wall

c)

Cell membrane

d)

Cytoplasm

55.

What organelle controls what enters and leaves the cell?

a)

Cell membrane

b)

Cell wall

c)

Cytoplasm

d)

Vacuole

56.

What organelle is the site for photosynthesis

a)

Vacuole

b)

Chlorophyll

c)

Mitochondria

d)

Chloroplasts

57.

What organelle is on the outermost part of an animal cell

a)

Cell membrane

b)

Cell Wall

58.

Where do most of the cells chemical reactions take place?

a)

Cytoplasm

b)

Nucleus

c)

Chloroplasts

d)

Mitochondria

59.

This organelle is made of cellulose and gives the cell structure and support

a)

Vacuole

b)

Cell wall

c)

Cell membrane

d)

Nuclues

60.

This organelle contains a cell sap and help keeps the cell firm

a)

Vacuole

b)

Cytoplasm

c)

Chlorophyll

d)

Chloroplast

61.

The green pigment inside chloroplasts is called

a)

Chloroplasmid

b)

Chlorophyll

c)

Chloroplastine

d)

Chlorofluid

62.

What is the outermost membrane in a plant cell

a)

Cell wall

b)

Cell membrane

63.

What 3 organelles does an animal cell not contain

a)

Vacuole, cytoplasm and mitochondria

b)

Chloroplast, cell membrane and vacuole

c)

Chloroplast, cell wall and vacuole

d)

Chloroplas, cell membrane adn vacuole

64.

This organelle holds genetic material and controls the cells activities

a)

Cell membrane

b)

Nucleus

c)

Cytoplasm

d)

Mitochondria

65.

Respiration happens in what organelle?

a)

Vacuole

b)

Chloroplasts

c)

Mitochondria

d)

Cytoplasm

66.

What organelle does an animal cell not contain

a)

Nucleus

b)

Cell wall

c)

Cell membrane

d)

Cytoplasm

67.

What organelle controls what enters and leaves the cell?

a)

Cell membrane

b)

Cell wall

c)

Cytoplasm

d)

Vacuole

68.

What organelle is the site for photosynthesis

a)

Vacuole

b)

Chlorophyll

c)

Mitochondria

d)

Chloroplasts

69.

What organelle is on the outermost part of an animal cell

a)

Cell membrane

b)

Cell Wall

70.

Where do most of the cells chemical reactions take place?

a)

Cytoplasm

b)

Nucleus

c)

Chloroplasts

d)

Mitochondria

71.

This organelle is made of cellulose and gives the cell structure and support

a)

Vacuole

b)

Cell wall

c)

Cell membrane

d)

Nuclues

72.

This organelle contains a cell sap and help keeps the cell firm

a)

Vacuole

b)

Cytoplasm

c)

Chlorophyll

d)

Chloroplast

73.

The green pigment inside chloroplasts is called

a)

Chloroplasmid

b)

Chlorophyll

c)

Chloroplastine

d)

Chlorofluid

74.

What is the outermost membrane in a plant cell

a)

Cell wall

b)

Cell membrane

75.

What 3 organelles does an animal cell not contain

a)

Vacuole, cytoplasm and mitochondria

b)

Chloroplast, cell membrane and vacuole

c)

Chloroplast, cell wall and vacuole

d)

Chloroplas, cell membrane adn vacuole

76.

This organelle holds genetic material and controls the cells activities

a)

Cell membrane

b)

Nucleus

c)

Cytoplasm

d)

Mitochondria

77.

Respiration happens in what organelle?

a)

Vacuole

b)

Chloroplasts

c)

Mitochondria

d)

Cytoplasm

78.

What organelle does an animal cell not contain

a)

Nucleus

b)

Cell wall

c)

Cell membrane

d)

Cytoplasm

79.

What organelle controls what enters and leaves the cell?

a)

Cell membrane

b)

Cell wall

c)

Cytoplasm

d)

Vacuole

80.

What organelle is the site for photosynthesis

a)

Vacuole

b)

Chlorophyll

c)

Mitochondria

d)

Chloroplasts

81.

What organelle is on the outermost part of an animal cell

a)

Cell membrane

b)

Cell Wall

82.

Where do most of the cells chemical reactions take place?

a)

Cytoplasm

b)

Nucleus

c)

Chloroplasts

d)

Mitochondria

83.

This organelle is made of cellulose and gives the cell structure and support

a)

Vacuole

b)

Cell wall

c)

Cell membrane

d)

Nuclues

84.

This organelle contains a cell sap and help keeps the cell firm

a)

Vacuole

b)

Cytoplasm

c)

Chlorophyll

d)

Chloroplast

85.

The green pigment inside chloroplasts is called

a)

Chloroplasmid

b)

Chlorophyll

c)

Chloroplastine

d)

Chlorofluid

86.

What is the outermost membrane in a plant cell

a)

Cell wall

b)

Cell membrane

87.

What 3 organelles does an animal cell not contain

a)

Vacuole, cytoplasm and mitochondria

b)

Chloroplast, cell membrane and vacuole

c)

Chloroplast, cell wall and vacuole

d)

Chloroplas, cell membrane adn vacuole

88.

What is letter "A" pointing to?

a)

cuticle

b)

upper epidermis

c)

lower epidermis

d)

palisade mesophyll

89.

What is the name of the elongated, packed cells (part G) directly under the upper epidermis?

a)

Palisade cells

b)

Guard cell

c)

Spongy layer

d)

Lower epidermis

90.

Which two layers of the plant contain chloroplasts?

a)

xylem and phloem

b)

upper and lower epidermis

c)

cuticle and upper epidermis

d)

palisade and spongy mesophyll

91.
What are all materials made up of?
a)
Particles
b)
Carbon
c)
Wood
d)
Ions
92.
What is the definition of an element?
a)
A pure substance
b)
A pure substance like water
c)
A pure substance, containing only one type of atom
d)
A substance that only has one atom
93.
What are the correct properties to describe a solid?
a)
Can flow, can be compressed
b)
Can't flow, can't be compressed, has no fixed shape
c)
Can't flow, can't be compressed, has a fixed shape
94.
What are the correct properties to describe a liquid?
a)
Can't flow, can't be compressed, has no fixed shape
b)
Fills the shape of the container, can't flow
c)
Fills the shape of the container, can flow, cannot be compressed
95.
What are the correct properties to describe a gas?
a)
Can't flow, can't be compressed, has no fixed shape
b)
Fills the shape of the container, cannot be compressed
c)
Can flow, fills the shape of the container and can be compressed
96.
These particles show the arrangement of particles in a:
a)
Solid
b)
Liquid
c)
Gas
97.
These particles show the arrangement of particles in a:
a)
Solid
b)
Liquid
c)
Gas
98.
These particles show the arrangement of particles in a:
a)
Solid
b)
Liquid
c)
Gas
99.
Which change of state describes the change from a liquid to a solid?
a)
Melting
b)
Freezing
c)
Boiling
d)
Evaporation
100.
Which change of state describes the change from a solid to a liquid?
a)
Melting
b)
Freezing
c)
Boiling
d)
Evaporation
101.
Which change of state describes the change from a solid straight to a gas?
a)
Melting
b)
Freezing
c)
Boiling
d)
Sublimation
102.
Which change of state describes the change from a liquid to a gas?
a)
Melting
b)
Condensation
c)
Boiling
d)
Sublimation
103.
Which change of state describes the change from a gas to a liquid?
a)
Melting
b)
Condensation
c)
Boiling
d)
Sublimation
104.
If a substance had a melting point of 100⁰C, what state would it be in at room temperature?
a)
Solid
b)
Liquid
c)
Gas
105.
If a substance had a melting point of -12⁰C and a boiling point of 200⁰ what state would it be in at room temperature?
a)
Solid
b)
Liquid
c)
Gas
106.
If a substance had a boiling point of -12⁰C, what state would it be in at room temperature?
a)
Solid
b)
Liquid
c)
Gas
107.
If a substance had a melting point of 54⁰C boiling point of 68⁰C, what state would it be in at room temperature?
a)
Solid
b)
Liquid
c)
Gas
108.
Which is the highest temperature?
a)
12⁰C
b)
118⁰C
c)
-2⁰C
d)
-264⁰C
109.
Which is the lowest temperature?
a)
12⁰C
b)
118⁰C
c)
-2⁰C
d)
-264⁰C
110.
What terms describes the movement of particles from a high concentration to a low concentration?
a)
Evaporation
b)
Melting
c)
Diffusion
d)
Freezing
111.
Can diffusion occur in solids?
a)
Yes
b)
No
112.
What is the correct chemical symbol for sodium?
a)
NA
b)
nA
c)
na
d)
Na
113.
What is the correct chemical symbol for magnesium?
a)
M
b)
Mg
c)
Mn
d)
MN
114.
What does this sentence describe: 2 or more substances that are not chemically joined together but can be separated easily
a)
Element
b)
Mixture
c)
Compound
115.
When a liquid turns into a gas at any temperature without bubbles, this shows...
a)
Boiling
b)
Melting
c)
Freezing
d)
Evaporation
116.

In which state are these particles?

a)

Solid

b)

Liquid

c)

Gas

117.

In which state are these particles?

a)

Solid

b)

Liquid

c)

Gas

118.

In what state are these particles?

a)

Solid

b)

Liquid

c)

Gas

119.

What properties describe a liquid?

a)

No definite volume, they take the shape of the container and have a low density

b)

A definite volume, they take the shape of the container and have medium density

c)

They are not easily squashed and have a definite shape

d)

A definite volume and shape and have a high density

120.

They have a definite volume and shape, a high density, not easily squashed and don't flow. Which state is being described?

a)

Solid

b)

Liquid

c)

Gas

121.

They have no definite volume, they take the shape of the container, have a very low density, can be easily squashed and flow. Which state is being described?

a)

Solid

b)

Liquid

c)

Gas

122.

What effect does increasing temperature have on gas pressure?

a)

Increases gas pressure

b)

Decreases gas pressure

c)

Has no effect

123.

What effect does increasing the volume have on gas pressure?

a)

Increase gas pressure

b)

Decreases gas pressure

c)

Has no effect

124.

In diffusion, particles move in what direction?

a)

From high concentration to low

b)

From low concentration to high

125.

Diffusion can happen in what substances?

a)

Solids, liquids and gases

b)

Liquids only

c)

Gases only

d)

Liquids and gases only

126.

What change of state is occurring when a solid turns into a liquid?

a)

Boiling

b)

Freezing

c)

Condensing

d)

Melting

127.

What change of state is occurring when a liquid turns into a gas?

a)

Freezing

b)

Melting

c)

Boiling

d)

Sublimation

128.

What change of state is occurring when a solid turns into a gas?

a)

Freezing

b)

Sublimation

c)

Boiling

d)

Melting

129.

What change of state is occurring when a gas turns into a liquid?

a)

Freezing

b)

Condensing

c)

Sublimation

d)

Boiling

130.

What type of graph is this?

a)

Heating curve

b)

Cooling curve

131.
Why are approved eye protection devices (such as goggles) are worn in the lab?
a)
A. To improve your vision
b)
B. To make you look like a bug
c)
 C. To give you headaches
d)
 D. To protect eyes around chemicals, heat, or glassware
132.
What should you do when gathering materials for an experiment?
a)

 Read all directions carefully

b)

Check all materials for chips or cracks (or broken)

c)
Clean the materials if they seem dirty/used
d)

Grab as much as you can, as quickly as you can

133.
You have been injured in the lab (cut, burned, etc.) First you should -
a)
apply first aid yourself
b)
tell the teacher at once
c)
see a doctor after school
d)
visit the school nurse after class
134.
What should you do with chemicals leftover after an experiment?
a)
Follow the directions of the teacher
b)
Carefully pour them down the sink
c)
Throw them into the trash can
d)
Leave them on the table
135.
Cleaning up the science classroom is the job of -
a)
each student
b)
new students
c)
the teacher
d)
old students
136.
The most important thing during lab experiments is
a)
neatness
b)
finishing first
c)
safety
d)
getting the correct answer
137.
You should never ______ chemicals in the lab. 
a)
taste
b)
touch
c)
smell
d)

use

138.
When you finish working with chemicals, biological specimens, and other lab substances, always -
a)
treat your hands with skin lotion
b)
wash your hands thoroughly with soap and water
c)
wipe your hands on a towel
d)
wipe your hands on your clothes
139.
Always point the open end of a test tube
a)
toward yourself
b)
toward your lab partner
c)
toward another classmate
d)
away from people
140.
What process to smell chemicals is this person doing
a)
sniffing 
b)
snorting 
c)
wafting 
d)
wifting 
141.

Any living thing:

a)

tissue

b)

system

c)

organism

d)

organ system

142.

Part of the plant that absorbs water.

a)

Roots

b)

Flowers

c)

Petals

d)

Leaves

143.

Part of the plant that is long, transport nutrients, water and keep the plant stable in the ground.

a)

Roots

b)

Stem

c)

Petals

d)

Leaves

144.

Which part of the plant is the site of photosynthesis?

a)

Roots

b)

Stem

c)

Fruit

d)

Leaves

145.

Which item best describes the function of roots?

a)

Anchor the plant & absorb water/nutrients

b)

Site of photosynthesis

c)

Develops into a new plant

d)

Attracts bees and birds for pollination

146.

These tubes inside the stem transport the water and nutrients from photosynthesis throughout the plant.

a)

chlorophyll and chloroplast

b)

guard cell and stomata

c)

xylem and phloem

147.

Which of these is NOT a function of the roots?

a)

anchors the plant in the soil

b)

absorbs water from the ground

c)

support the plant in the soil

d)

capture sunlight

148.

A plant with tissues that transport water and nutrients throughout the plant

a)

xylem

b)

vascular plant

c)

phloem

d)

root

149.

Tiny holes in leaves that allow gases to enter or leave a plant

a)

stem

b)

xylem

c)

stomata

d)

organ

150.

A group of organs that work together to carry out a specific function or functions

a)

organ

b)

tissue

c)

system

d)

organ system

151.

a group of similar cells that work together to perform a specific function

a)

stem

b)

tissue

c)

root

d)

organism

152.
Which part of the plant is used for photosynthesis? 
a)
Leaves
b)
Roots
c)
Stems
d)
Flower
153.
A collection of cells with similar functions form ____
a)
an organ
b)
a tissue
c)
an organism
d)
an organ system
154.

_____________________ is a vascular tissue that carries sugars and other foods throughout a plant.

a)

stems

b)

phloem

c)

roots

d)

xylem

155.
Which of the following structures allows for gas exchange between a leaf and the atmosphere?
a)
Cuticle
b)
Phloem
c)
Stomata
d)
Xylem
156.

What is the vascular tissue that carries water throughout a plant?

a)

phloem

b)

seedling

c)

xylem

157.

What is the term for tissues grouped together to perform a specific function?

a)

cell

b)

tissue

c)

organ

d)

organ system

158.

Tissues are

a)

Group of cells that perform similar functions

b)

Groups of organelles that perform similar functions

c)

Groups of organs.

d)

Important for the survival of living organisms

159.

What inside of your mouth helps to digest food?

a)

tongue

b)

saliva

c)

teeth

d)

all of the above

160.

What is the tube that connects the mouth to the stomach?

a)

elastic

b)

esophagus

c)

engine

d)

small intestine

161.

After the stomach where does the digested food go next?

a)

Into the oesophagus

b)

Into the large intestine

c)

Into the small intestine

d)

into the liver

162.
Where does digestion begin?
a)
in the stomach
b)
in the mouth
c)
in the esophagus
d)
in the small intestine
163.

What breaks food into smaller pieces?

a)

pharynx

b)

tongue

c)

teeth

d)

large intestine

164.
The ______________ is where food is mixed with juices and is squeezed and churned until it becomes a thick liquid. 
a)
esophagus
b)
stomach
c)
small intestine
d)
large intestine
165.

A narrow tube where nutrients are absorbed into the bloodstream is called the ___________.

a)

oesophagus

b)

stomach

c)

small intestine

d)

large intestine

166.

Which part of the digestive system is number 2?

a)

oesophagus

b)

stomach

c)

small intestine

d)

liver

167.

Which part of the digestive system is number 3?

a)

oesophagus

b)

stomach

c)

small intestine

d)

liver

168.

Which part of the digestive system is number 4?

a)

oesophagus

b)

large intestine

c)

small intestine

d)

liver

169.

Which part of the digestive system is number 6?

a)

oesophagus

b)

large intestine

c)

small intestine

d)

liver

170.
Which is NOT a function of the Digestive System?
a)
To rid the body of solid waste
b)
Absorb nutrients for energy & growth
c)
Break down nutrients from food
d)
Pump blood around the body
171.

What is the purpose of digestion?

a)

To get food

b)

To get nutrients

c)

To get oxygen

d)

To get water

172.

What is the purpose of saliva

a)

To lubricate food and add enzymes that break down carbohydrates

b)

To add enzymes that break down fats

c)

To add enzymes that break down proteins

d)

To make the food into smaller pieces

173.

What TWO process take place in the mouth?

a)

The adding of saliva

b)

Tongue breaks down food

c)

Chewing to break down food

d)

Acid is added

174.

What TWO process take place in the stomach?

a)

Churning of the food

b)

Addition of acid

c)

Chewing

d)

Absorption of water

175.

What body system is shown in the picture?

a)

Nervous System

b)

Skeletal System

c)

Respiratory System

d)

Digestive System

176.

What system is shown in the picture?

a)

Circulatory System

b)

Muscular System

c)

Nervous System

d)

Digestive System

177.

What are the three main parts of the circulatory system?

a)

Blood, Heart, and Lungs

b)

Blood, Blood Vessels, and Heart

c)

Smooth muscles, Lungs, and Bones

d)

Blood Vessels, Muscles, and Air Sacs

178.

What system moves blood and oxygen throughout the entire body?

a)

Skeletal system

b)

Digestive System

c)

Nervous System

d)

Circulatory System

179.

What system allows oxygen to enter and carbon dioxide to leave the body?

a)

Circulatory System

b)

Respiratory System

c)

Muscular System

d)

Digestive System

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