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IS7 - Unit 3 Test

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Only animals undergo respiration.

a)

True

b)

False

2.

Animals use chlorophyll to produce glucose.

a)

True

b)

False

3.

Photosynthesis results in the release of oxygen.

a)

True

b)

False

4.

In respiration, glucose is broken down.

a)

True

b)

False

5.

Which of the following is NOT a producer?

a)

pine tree

b)

tulip

c)

grass

d)

honeybee

6.

Organic compounds always contain ____.

a)

water

b)

oxygen

c)

nitrogen

d)

carbon

7.

Which of these is NOT part of an atom?

a)

element

b)

proton

c)

neutron

d)

electron

8.

____ is an organic compound.

a)

NaCl

b)

H2O

c)

C6H12O6

d)

O2

9.

During periods of strenuous activity, muscle cells run low on ____.

a)

oxygen

b)

glucose

c)

carbon dioxide

d)

lactic acid

10.

Which of these is a molecule?

a)

Ca

b)

Mg

c)

Na

d)

H2O

11.

The process that releases energy without using oxygen is ____.

a)

photosynthesis

b)

respiration

c)

osmosis

d)

fermentation

12.

Carbon ____ through the carbon cycle.

a)

increases in quantity

b)

decreases in quantity

c)

follows various paths

d)

follows a single path

13.

Which of the following eats consumers?

a)

carnivore

b)

herbivore

c)

bacteria

d)

fungi

14.

Nitrogen is used by ____.

a)

plants

b)

animals

c)

both

d)

neither

15.

Which is a more complete model of feeding relationships?

a)

protein building

b)

food map

c)

food web

d)

food chain

16.

As you move from level to level in an energy pyramid, energy ____.

a)

decreases

b)

increases

c)

stays at the same level

d)

is destroyed

17.

The energy used in photosynthesis comes from the ____________________.

a)

Sun

b)

Moon

c)

Wind

d)

Water

18.

All living things are made up of organic ____________________.

a)

compounds

b)

elements

c)

molecules

d)

minerals

19.

The nitrogen cycle begins with the transfer of nitrogen from the ____________________ to producers.

a)

atmosphere

b)

soil

c)

water

d)

rocks

20.

Energy is not replaced, but rather is ____________________.

a)

recycled

b)

destroyed

c)

created

d)

lost

21.

Air is a mixture of gases including oxygen, ____________________, and carbon dioxide.

a)

nitrogen

b)

helium

c)

argon

d)

hydrogen

22.

Which process involves the conversion of carbon dioxide and water into glucose and oxygen using sunlight?

a)

Photosynthesis

b)

Cellular respiration

c)

Fermentation

d)

Glycolysis

23.

Chemical substances made of two or more different elements are called _______.

a)

compounds

b)

mixtures

c)

solutions

d)

elements

24.

A network of interconnected food chains is called a _______.

a)

web

b)

chain

c)

cycle

d)

network

25.

Which process involves the conversion of light energy into chemical energy in plants?

a)

Photosynthesis

b)

Respiration

c)

Fermentation

d)

Transpiration

26.

If foxes are predators of field mice, and the fox population decreased because of deforestation, what would most likely occur to the population of field mice?

a)

increase

b)

decrease

c)

stay the same

27.

What role do animals play in the carbon/oxygen cycle?

a)

absorb carbon dioxide from the atmosphere

b)

give off carbon dioxide through respiration

c)

combustion

d)

decomposing matter

28.
Lions only eat buffalo, antelopes, zebras and crocodiles. They are called __________.
a)
Omnivore
b)
Herbivore
c)
Carnivore
d)
Delivore
29.
Elephants only eat leaves, fruit, nuts and grass. They are called __________.
a)
Omnivore
b)
Fortivore
c)
Herbivore
d)
Carnivore
30.
Is a deer an abiotic or biotic factor? 
a)
abiotic
b)
biotic
31.
Temperature, light, air, water, and soil are all  _____  parts of the environment
a)
alive
b)
biotic 
c)
abiotic
d)
living
32.

__________ is an organism that eats plants and animals for energy.

a)
Omnivore
b)
Borivore
c)
Herbivore
d)
Carnivore
33.
An organism that breaks down wastes and plant and animal remains and returns their nutrients to the soil is a/an
a)
consumer
b)
scavanger
c)
decomposer
d)
prey
34.
Complete the flow of nutrients. Soil --> Producer --> Consumer --> _________ --> Soil
a)
Herbivore
b)
Decomposer
c)
Carnivore
d)
Omnivore
35.

Which process is this: plants turn water, sunlight, and carbon dioxide into water oxygen, and glucose.

a)

cellular respiration

b)

photosynthesis

36.

What gas is taken in during photosynthesis?

a)

Argon

b)

Nitrogen

c)

Oxygen

d)

Carbon dioxide

37.

What gas is released during photosynthesis?

a)

Carbon dioxide

b)

argon

c)

oxygen

d)

nitrogen

38.

Where does the energy for photosynthesis come from?

a)

carbon dioxide

b)

oxygen

c)

the sun

d)

glucose

39.

In what way are photosynthesis and cellular respiration different?

a)

Cellular respiration stores energy, while photosynthesis releases energy

b)

Cellular respiration produces oxygen, while photosynthesis uses oxygen

c)

Photosynthesis releases energy, while cellular respiration stores energy

d)

Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide

40.

Decomposers are important to ecosystems because they...

a)

return vital nutrients to the ecosystem

b)

capture energy from the Sun

c)

are producers

d)

can be omnivores

41.

What happens to the amount of carbon in an ecosystem as it moves through an ecosystem?

a)

Amount of Carbon increases

b)

Amount of Carbon decreases

c)

Amount of Carbon stays the same

d)

New Carbon is created when old carbon decomposes

42.

Algae is an example of a _______________________.

a)

producer

b)

consumer

c)

decomposer

43.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
44.
What is an ecosystem?
a)
all living and nonliving things that interact in an area
b)
all of the physical characteristics of an area
c)
all the living things that interact in an area
d)
all of the nonliving things that interact in an area
45.
In this Food Web Pyramid Which type of consumer gets only 10% of the energy stored in plants?
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Secondary Consumer
46.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
47.

Living things, such as plants, animals, and bacteria.

a)

ecosystem

b)

matter

c)

organisms

d)

atoms

48.
A food chain shows the transfer of ___ from one organism to another. 
a)
matter
b)
consumers
c)
energy
d)
habitat
49.
What percentage of energy is passed on to each tropic level?
a)
10%
b)
50%
c)
90%
d)
100%
50.

Which species would have the fewest in this ecosystem?

a)

cactus

b)

ladibugs

c)

frogs

d)

owls

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