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WorksheetsFood Webs and Food Chains Practice
Total questions: 42
Worksheet time: 31mins
Name
Class
Date
1.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
2.
Humans are considered...
a)
consumers
b)
decomposers
c)
producers
3.
Grass is considered a ...
a)
consumer
b)
producer
c)
decomposer
4.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
d)
an animal that eats only herbs
5.
An organism that gets energy from eating other organisms is a ______________
a)
producer
b)
consumer
c)
decomposer
d)
prey
6.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
d)
population
7.
An animal that gets energy from eating both plants and animals is a
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
8.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms.
d)
They represent how water is transferred within a habitat.
9.
Which of the following food chains shows the correct energy flow left to right?
a)
rabbit-coyote-grass
b)
grass-rabbit-coyote
c)
coyote-rabbit-grass
d)
grass-coyote-rabbit
10.
What percentage of energy is passed on to each trophic level?
a)
10%
b)
50%
c)
90%
d)
100%
11.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
12.
Name the producers in this food web.
a)
seagull and fish
b)
penguin and crab
c)
phytoplankton and seaweed
d)
seaweed and zooplankton
13.
This is referred to as the energy currency of the cell
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
14.
This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.
a)
photosynthesis
b)
light-independent reaction
c)
cellular respiration
d)
light-dependent reaction
15.
This means that oxygen is needed
a)
anaerobic
b)
aerobic
16.
This means that oxygen is not needed
a)
anaerobic
b)
aerobic
17.
Which is the correct formula for respiration?
a)
6CO2 + 14C6H12O6 --> 6H2O + 6O2 + ATP
b)
6CO2 + 6 H2O --> C6H12O6 + 6O2
c)
C6H12O6 + 6O2 --> 6H2O + 6CO2 + ATP
d)
6H2O + 6CO2 --> C6H12O6 + 6O2
18.
Which of the following is TRUE regarding anaerobic respiration/fermentation?
a)
it produces more ATP than aerobic respiration and doesn't require oxygen
b)
it produces far less ATP than aerobic respiration and doesn't require oxygen
c)
it produces more ATP than aerobic respiration and requires oxygen
d)
it produces far less ATP than aerobic respiration and requires oxygen
19.
What are the products of aerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
20.
The purpose of cellular respiration is to make
a)
food from energy
b)
ATP from glucose
c)
heat for the organism
d)
oxygen
21.
All living things do which of the following?
a)
Chemosynthesis
b)
Respiration
c)
photosynthesis
d)
all of the answers
22.
The reactants of photosynthesis are
a)
sugar and water.
b)
sugar and oxygen.
c)
carbon dioxide and water.
d)
carbon dioxide and oxygen.
23.
What are the products of photosynthesis?
a)
Carbon dioxide and water
b)
Carbon dioxide and oxygen
c)
Glucose and oxygen
d)
Glucose and water
24.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
6CO2 + 6H2O --> 6O2 + C6H12O6
b)
6CO2 + C6H12O6 + 6H2O --> O2
c)
6O2 + 6H2O --> 6CO2 + C6H12O6
d)
C6H12O6 + 6O2 ---> 6H2O + 6CO2
25.
What gas is released by plants during photosynthesis?
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
26.
How can photosynthesis be related to cellular respiration?
a)
What's produced (made) by one is needed (the reactants) for the other
b)
They both produce the same products
c)
They both have the same reactants (need the same things)
d)
These 2 processes have nothing in common
27.
What is another name for glucose?
a)
Chlorophyll
b)
Chloroplasts
c)
Stomata
d)
Sugar
28.
A coefficient in a chemical formula tell us what?
a)
# of atoms in a molecule
b)
oxidation #
c)
# of total atoms in a molecule
d)
# of units of each molecule
29.
What are the REACTANTS :
H2O + CO2 → HCO + HO
H2O + CO2 → HCO + HO
a)
H2O and CO2
b)
HCO and HO
c)
H2O ONLY
d)
HCO ONLY
30.
Which of the following are PRODUCTS?
H2O + CO2 → HCO + HO
H2O + CO2 → HCO + HO
a)
H2O and CO2
b)
HCO and HO
c)
H2O ONLY
d)
HCO ONLY
31.
How many C atoms are in the following equation?
CH4 + 2O2
CH4 + 2O2
a)
1
b)
4
c)
2
d)
0
32.
How many H atoms are in the following equation?
CO2 + 2H2O
CO2 + 2H2O
a)
1
b)
4
c)
2
d)
0
33.
Read the following chemical formula: C6H12O6. How many hydrogen atoms are in the formula?
a)
12
b)
6
c)
4
d)
24
34.
This appears on the left side of a chemical formula, and represents how many molecules there are.... What is highlighted in yellow?
a)
Atom
b)
Subscript
c)
Molecule
d)
Coefficient
35.
How many Iron (Fe) atoms are in this chemical formula?
a)
2 iron atoms
b)
6 iron atoms
c)
5 iron atoms
d)
4 iron atoms
36.
How many oxygen atoms are in this chemical formula?
a)
6 oxygen atoms
b)
2 oxygen atoms
c)
3 oxygen atoms
d)
4 oxygen atoms
37.
A series of chemical reactions that convert light energy, water, and carbon dioxide into the food-energy molecule glucose and give off oxygen
a)
Photosynthesis
b)
Evaporation
c)
Chemical Bond
d)
Precipitation
38.
A model that shows how energy flows in an ecosystem through feeding relationships
a)
Food chain
b)
Food web
c)
Organism
d)
Flow chart
39.
Water that falls from clouds to Earth's surface
a)
Precipitation
b)
Condensation
c)
Evaporation
d)
Rail
40.
The process during which water vapor changes into liquid water
a)
Condensation
b)
Precipitation
c)
Evaporation
d)
Consumer
41.
The process during which liquid water changes into a gas called water vapor
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Omnivore
42.
An animal that eats other animals
a)
Carnivores
b)
Omnivores
c)
Producers
d)
Consumers
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