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Question 1

The two steps in photosynthesis are the light-dependent reactions and the Calvin cycle.
Which of the following is true regarding these two steps?
a
The light-dependent reactions use ATP from the Calvin cycle, and the Calvin cycle uses energy from absorbed sunlight.
b
The light-dependent reactions take place in the thylakoid membrane, and the Calvin cycle takes place in the stroma.
c
During the light-dependent reactions, carbon dioxide is fixed to produce sugars that form glucose.
d
The Calvin cycle converts water molecules into oxygen gas as a byproduct of its reactions.
Question 2

What is the purpose of photosynthesis?

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a
to make sugars and store energy
b
to release carbon monoxide
c
to create oxygen for animals to breathe
d
to break down sugars and give energy
Question 3
Which molecule, synthesized by plants and other photoautotrophs, is a major source of energy for cellular processes in both plants and animals?

a
Chlorophyll
b
Glucose
c
Wax
d
Nucleic acid
Question 4
The Krebs cycle produces electron carrier molecules. Where do these carrier molecules deliver the electrons produced in the Krebs cycle?

a
lactic acid fermentation
b
glycolysis
c
alcohol fermentation
d
the electron transport chain
Question 5
Which are the products of aerobic cellular respiration?

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a
water and carbon dioxide
b
water, oxygen and ATP
c
water and carbon dioxide and ATP
d
glucose, oxygen and light
Question 6
Plants produce glucose in order to

a
move.
b
get sunlight.
c
turn green.
d
make energy.
Question 7
Which of the following diagrams best illustrates the process of photosynthesis?

A.)4be1afc2-1b15-4a89-9e1c-344d93a037f9



B.)e5dfae5a-d7f6-4d44-9da8-f9a37441d370



C.)98214d76-2b86-4ca5-9702-bb49a5082649



D.)08b06003-076c-4b12-a45f-ca53ad6e8de4

a
A
b
B
c
C
d
D
Question 8
The model shows the light-dependent reactions and the Calvin Cycle within a cell.

image bace73ffe99f45138274b455013cc3cd

Which question can be answered about the light-dependent reactions?

a
Where is CO2 used?
b
Where is glucose formed?
c
Where is water broken down?
d
Where is oxygen used?
Question 9
Compared to aerobic respiration, anaerobic respiration

a
does not require oxygen and produces oxygen and glucose as forms of stored energy that are utilized by the cell.
b
requires oxygen and can produce products such as lactic acid or alcohol.
c
does not produce as much ATP and comes into action as an energy backup for aerobic organisms.
d
produces 38 ATP molecules per reaction and generates 70% more energy
Question 10
The main source of ATP in an organism comes from

a
the mitochondria.
b
the vesicles.
c
the ribosomes.
d
the nucleus.

1 answer

Here are the answers to your questions:

Question 1: The two steps in photosynthesis are the light-dependent reactions and the Calvin cycle. Which of the following is true regarding these two steps?

Answer: b. The light-dependent reactions take place in the thylakoid membrane, and the Calvin cycle takes place in the stroma.

Question 2: What is the purpose of photosynthesis?

Answer: a. to make sugars and store energy

Question 3: Which molecule, synthesized by plants and other photoautotrophs, is a major source of energy for cellular processes in both plants and animals?

Answer: b. Glucose

Question 4: The Krebs cycle produces electron carrier molecules. Where do these carrier molecules deliver the electrons produced in the Krebs cycle?

Answer: d. the electron transport chain

Question 5: Which are the products of aerobic cellular respiration?

Answer: c. water and carbon dioxide and ATP

Question 6: Plants produce glucose in order to

Answer: d. make energy.

Question 7: Which of the following diagrams best illustrates the process of photosynthesis?

Answer: (Please provide the diagrams to select the correct one.)

Question 8: The model shows the light-dependent reactions and the Calvin Cycle within a cell. Which question can be answered about the light-dependent reactions?

Answer: c. Where is water broken down?

Question 9: Compared to aerobic respiration, anaerobic respiration

Answer: c. does not produce as much ATP and comes into action as an energy backup for aerobic organisms.

Question 10: The main source of ATP in an organism comes from

Answer: a. the mitochondria.

If you have any further questions or need clarification on any answers, feel free to ask!