WorksheetsCellular Energy Quiz (2025)
Total questions: 30
Worksheet time: 18mins
Name
Class
Date
1.
All energy on Earth ultimately comes from?
a)
fossil fuels (oil, coal and natural gas)
b)
the Sun
c)
plant life
d)
geological processses
2.
How many phosphate groups are found in ATP?
a)
One
b)
Two
c)
Three
d)
Ten
3.
Energy is released from ATP, and it becomes ADP, when...
a)
the bond between the adenine base and the ribose sugar is formed
b)
the bond between the adenine base and the ribose sugar is broken
c)
the bond between the ribose sugar and the first phosphate group is broken
d)
the bond between the last two phosphate groups is broken
4.
Which of the following organisms makes its own food using light energy from the sun?
a)
decomposers
b)
chemoautotrophs
c)
heterotrophs
d)
photoautotrophs
5.
Photosynthesis uses sunlight to convert water and carbon dioxide into what?
a)
oxygen and carbon
b)
oxygen and glucose
c)
ATP and oxygen
d)
high-energy sugars and proteins
6.
If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of glucose and other high-energy sugars?
a)
More glucose will be produced.
b)
No glucose will be produced.
c)
Fewer glucose molecules will be produced at first, but then the plant will recover.
d)
The same number of glucose molecules will be produced but without carbon dioxide.
7.
Which of the following is one of the ways that cellular respiration and photosynthesis are opposite processes?
a)
Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.
b)
Photosynthesis removes oxygen from the atmosphere, and cellular respiration puts it back.
c)
Photosynthesis releases energy, and cellular respiration stores energy.
d)
Photosynthesis consumes glucose, and cellular respiration produces glucose.
8.
Which letter in the diagram represents oxygen?
a)
Letter A
b)
Letter B
c)
Letter C
d)
Letter D
9.
Which letter in the diagram represents carbon dioxide?
a)
Letter A
b)
Letter B
c)
Letter C
d)
Letter D
10.
Which letter in the diagram represents the site of the light-dependent reactions?
a)
Letter A
b)
Letter B
c)
Letter C
d)
Letter D
11.
Which letter in the diagram represents glucose?
a)
Letter A
b)
Letter B
c)
Letter C
d)
Letter D
12.
During photosynthesis, organelles called _______________ in plants trap sunlight and store this energy in the form of _______________, a carbohydrate.
a)
mitochondria, glucose
b)
chloroplasts, glucose
c)
mitochondria, ATP
d)
chloroplasts, ATP
13.
How do plants obtain the simple molecules necessary to make food molecules?
a)
Plants take in oxygen through leaves and take in water through the roots.
b)
Plants take in carbon dioxide through roots and take in water through the leaves.
c)
Plants take in carbon dioxide through leaves and take in water through the roots.
d)
Plants release carbon dioxide through roots and take in water through the leaves.
14.
What is true about the structure labeled "C"?
a)
This is the stroma, the site of the the Calvin cycle
b)
This is the stroma, the site of the light-dependent reactions
c)
This is a thylakoid membrane, the site of the Calvin cycle
d)
This is a thylakoid membrane, the site of the light-dependent reactions
15.
What is true about the structure labeled "a"?
a)
This is the stroma, the site of the the Calvin cycle
b)
This is the stroma, the site of the light-dependent reactions
c)
This is a thylakoid membrane, the site of the Calvin cycle
d)
This is a granum, which is made of thylakoids and is the site of the light-dependent reactions
16.
When oxygen is not available, what follows glycolysis?
a)
Krebs cycle
b)
electron transport chain
c)
Calvin cycle
d)
fermentation
17.
Cellular respiration is called an aerobic process because it requires what?
a)
exercise
b)
light
c)
oxygen
d)
glucose
18.
Cellular respiration releases stored ATP energy through a series of steps. What are those steps in order?
a)
glycolysis, Calvin cycle and electron transport chain
b)
glycolysis, Krebs cycle and electron transport chain
c)
electron transport chain, glycolysis and Krebs cycle
d)
Krebs cycle, electron transport chain and glycolysis
19.
Which of the following statements is TRUE?
a)
The Krebs cycle is part of photosynthesis
b)
The Calvin cycle is part of cellular respiration
c)
Cellular respiration only occurs in animal cells
d)
Photosynthesis and cellular respiration both occur in plant cells
20.
Which of the following steps of cellular respiration generate the most ATP?
a)
Glycolysis
b)
Lactic acid fermentation
c)
The Krebs cycle
d)
The electron transport chain
21.
Which of the following best describes the chemical equation shown?
a)
Photosynthesis: carbon dioxide and water are used and glucose and oxygen are produced.
b)
Photosynthesis: proteins and oxygen are used and carbon dioxide and water are produced.
c)
Cellular respiration: glucose and oxygen are used and carbon dioxide and water are produced.
d)
Cellular respiration: lipids and water are used and carbon dioxide and glucose are produced.
22.
Which of the following best describes the chemical equation shown ?
a)
Photosynthesis: carbon dioxide and water are used and glucose and oxygen are produced.
b)
Photosynthesis: proteins and oxygen are used and carbon dioxide and water are produced.
c)
Cellular respiration: lipids and water are used and carbon dioxide and glucose are produced.
d)
Cellular respiration: glucose and oxygen are used and carbon dioxide and water are produced.
23.
Which of the following processes requires oxygen?
a)
Anaerobic respiration
b)
Aerobic respiration
c)
Glycolysis
d)
Lactic Acid fermentation
24.
Fermentation is an anaerobic process which means it doesn't require ____________.
a)
nitrogen
b)
hydrogen
c)
oyxgen
d)
methane
25.
All of the reactions in an organism are referred to as its ______.
a)
thermodynamics
b)
metabolism
c)
anabolic reactions
d)
catabolic reactions
26.
Letter B in the diagram represents what product of cellular respiration?
a)
Carbon dioxide
b)
Water
c)
Glucose
d)
Carbon monoxide
27.
Letter C in the diagram represents what product of cellular respiration?
a)
Carbon dioxide
b)
Water
c)
Glucose
d)
Carbon monoxide
28.
Letter A in the diagram represents what part of cellular respiration?
a)
Glycolysis
b)
Fermentation
c)
Krebs Cycle
d)
Electron Transport Chain
29.
Which of the following lists the reactants (inputs) needed for photosynthesis to take place?
a)
oxygen, carbon dioxide, glucose
b)
light energy, water
c)
water, carbon dioxide
d)
light energy, carbon dioxide, water
30.
Which process of cellular respiration uses oxygen?
a)
Glycolysis
b)
Kreb's cycle
c)
Electron transport system
d)
Fermentation
100 %
