Question 1

Which of the following molecules did the first life on earth more likely use for extracting energy and carbon?

Accepted Answer

A)   oxygen
B)   ATP
C)   NADPH
D)   water
E)   methaneF) A) and E)
G) C) and E)

Question 2

Match between columns
                        Premises: Process that fixes carbon twice.
This process leads to the formation of glucose.
This process is catalyzed by an enzyme called rubisco.
Water is split in this process.
Process that is minimized by C4 plants.

Accepted Answer

The Answer of C₄ pathway and light-dependent reactions and photorespiration is...

Question 3

The enzyme that fixes carbon dioxide into the Calvin-Benson cycle is

Accepted Answer

A)   rubisco
B)   carbon dioxide oxidase
C)   ATP synthase
D)   carbon hydrogenase
E)   pepsinF) A) and B)
G) A) and E)

Question 4

How many ATP form in the third stage of aerobic respiration?

Accepted Answer

A)   4
B)   16
C)   23
D)   32
E)   36F) A) and D)
G) A) and C)

Question 5

Most of the colors we see around us result from

Accepted Answer

A)   reflected light.
B)   direct sunlight.
C)   absorbed light.
D)   the inherent color of the objects we are looking at.
E)   a combination of absorbed and reflected light.F) A) and C)
G) C) and D)

Question 6

Photosystems are located in

Accepted Answer

A)   the first chloroplastic outer membrane.
B)   the second chloroplastic outer membrane.
C)   the stroma.
D)   the thylakoid membranes.
E)   the intermembrane space.F) A) and B)
G) A) and C)

Question 7

For a glucose molecule which is completely oxidized during the process of cellular respiration, what is the correct sequence of series of reactions?
I. glycolysis
II. phosphorylation
III. Krebs cycle

Accepted Answer

A)   I >>> II >>> III
B)   I >>> III >>> II
C)   II >>> I >>> III
D)   II >>> III >>> I
E)   III >>> I >>> IIF) A) and D)
G) A) and C)

Question 8

Which of the following statements is TRUE?

Accepted Answer

A)   In aerobic respiration, ATP is released in the very first reaction.
B)   The process of glycolysis is restricted to anaerobic organisms.
C)   Ribose is a substitute for glucose in some pathways.
D)   Glycolysis occurs free in the mitochondria.
E)   Enzymes lower the activation energy for each step in the chemical reactions in respiration.F) A) and B)
G) A) and C)

Question 9

After a meal,

Accepted Answer

A)   ATP production slows.
B)   blood glucose levels remain constant.
C)   insulin levels rise.
D)   glycogen is used.
E)   glucagon levels rise.F) All of the above
G) B) and C)

Question 10

The net result of glycolysis is

Accepted Answer

A)   2 NADH, 2 ATP, and 2 pyruvates
B)   8 NADH, 2 ATP, and 6 carbon dioxides
C)   36 ATP
D)   2 NADH, 4 ATP, and 2 pyruvates
E)   2 NADH, 2 ATP, and 2 acetyl-CoAsF) A) and C)
G) All of the above

Question 11

Photosynthesis converts the energy of light into

Accepted Answer

A)   pigments.
B)   chemical bond energy.
C)   carbohydrates.
D)   electrons and protons.
E)   heat energy.F) A) and B)
G) A) and D)

Question 12

The carbon dioxide acceptor in the Calvin-Benson cycle of photosynthesis is

Accepted Answer

A)   phosphoglycerate (PG
A)  .
B)   ribulose bisphosphate (RuBP) .
C)   phosphoglyceraldehyde (PGAL) .
D)   glucose.
E)   phosphoenolpyruvate.F) C) and E)
G) None of the above

Question 13

According to evidence from ice layers from the Antarctic, atmospheric carbon dioxide levels have been rising since

Accepted Answer

A)   the dinosaurs went extinct.
B)   for the last 10, 000 years.
C)   the industrial revolution began.
D)   the 1970s.
E)   human evolved 200, 000 years ago.F) A) and B)
G) C) and D)

Question 14

If an aerobic organism stopped taking in oxygen gas, which of the following processes would stop first?

Accepted Answer

A)   the splitting of glucose into two pyruvates
B)   the reduction of NAD+ to NADH
C)   the release of carbon dioxide
D)   electron transfer phosphorylation
E)   the initiation of the Krebs CycleF) None of the above
G) A) and B)

Question 15

The splitting of water in photosynthesis

Accepted Answer

A)   releases oxygen.
B)   results in accumulation of H+ inside the thylakoid.
C)   releases electrons.
D)   helps to fill an electron hole in the second photosystem.
E)   does all of these.F) A) and B)
G) B) and E)

Question 16

The amount of carbon dioxide in the atmosphere has increased by approximately___ percent since 1990.

Accepted Answer

A)   5
B)   15
C)   25
D)   50
E)   100F) B) and E)
G) C) and D)

Question 17

Which of the following statements related to photosynthesis is INCORRECT?

Accepted Answer

A)   The first stage of photosynthesis occurs in thylakoid membranes and requires light.
B)   The second stage of photosynthesis takes place in the stroma and does not require light.
C)   During the light-dependent reactions, glucose is produced.
D)   Water molecules are converted to oxygen gas.
E)   The light independent reactions occur in the stroma.F) B) and C)
G) C) and D)

Question 18

Which of the following organisms is responsible for the production of cheese, yogurt, and sour cream?

Accepted Answer

A)   Lactobacillus
B)   Saccrharomyces
C)   Clostridium
D)   E. coli
E)   more than one of theseF) B) and D)
G) B) and C)

Question 19

Photosystems are mainly

Accepted Answer

A)   a grouping of energy-trapping molecules.
B)   enzymes for splitting water.
C)   a cluster of ATP molecules.
D)   a sugar assembly site.
E)   assemblies of thylakoids.F) All of the above
G) A) and D)

Question 20

In the light-dependent reactions of photosynthesis, how do hydrogen ions get back into the stroma?

Accepted Answer

A)   passive diffusion directly across the thylakoid membrane
B)   active transport accross the thylakoid membrane
C)   facilitated diffusion across the thylakoid membrane
D)   active transport through ATP synthase
E)   passive diffusion through ATP synthaseF) All of the above
G) A) and D)

Exam 5: Capturing and Releasing Energy

Which of the following statements is TRUE?

Correct Answer
verified

Photosystems are mainly

Correct Answer
verified

If an aerobic organism stopped taking in oxygen gas, which of the following processes would stop first?

Correct Answer
verified

In the light-dependent reactions of photosynthesis, how do hydrogen ions get back into the stroma?

Correct Answer
verified

Which of the following statements related to photosynthesis is INCORRECT?

Correct Answer
verified

The amount of carbon dioxide in the atmosphere has increased by approximately___ percent since 1990.

Correct Answer
verified

After a meal,

Correct Answer
verified

Which of the following organisms is responsible for the production of cheese, yogurt, and sour cream?

Correct Answer
verified

For a glucose molecule which is completely oxidized during the process of cellular respiration, what is the correct sequence of series of reactions? I. glycolysis II. phosphorylation III. Krebs cycle

Correct Answer
verified

The net result of glycolysis is

Correct Answer
verified

Photosynthesis converts the energy of light into

Correct Answer
verified

The enzyme that fixes carbon dioxide into the Calvin-Benson cycle is

Correct Answer
verified

According to evidence from ice layers from the Antarctic, atmospheric carbon dioxide levels have been rising since

Correct Answer
verified

Most of the colors we see around us result from

Correct Answer
verified

Classification . The processes listed below represent major chemical pathways in the photosynthetic process. Answer the questions with reference to these five processes:

The carbon dioxide acceptor in the Calvin-Benson cycle of photosynthesis is

Correct Answer
verified

How many ATP form in the third stage of aerobic respiration?

Correct Answer
verified

The splitting of water in photosynthesis

Correct Answer
verified

Which of the following molecules did the first life on earth more likely use for extracting energy and carbon?

Correct Answer
verified

Photosystems are located in

Correct Answer
verified

Exam 5: Capturing and Releasing Energy

Which of the following statements is TRUE?

Correct AnswerverifiedShow Answer

Photosystems are mainly

Correct AnswerverifiedShow Answer

If an aerobic organism stopped taking in oxygen gas, which of the following processes would stop first?

Correct AnswerverifiedShow Answer

In the light-dependent reactions of photosynthesis, how do hydrogen ions get back into the stroma?

Correct AnswerverifiedShow Answer

Which of the following statements related to photosynthesis is INCORRECT?

Correct AnswerverifiedShow Answer

The amount of carbon dioxide in the atmosphere has increased by approximately___ percent since 1990.

Correct AnswerverifiedShow Answer

After a meal,

Correct AnswerverifiedShow Answer

Which of the following organisms is responsible for the production of cheese, yogurt, and sour cream?

Correct AnswerverifiedShow Answer

For a glucose molecule which is completely oxidized during the process of cellular respiration, what is the correct sequence of series of reactions? I. glycolysis II. phosphorylation III. Krebs cycle

Correct AnswerverifiedShow Answer

The net result of glycolysis is

Correct AnswerverifiedShow Answer

Photosynthesis converts the energy of light into

Correct AnswerverifiedShow Answer

The enzyme that fixes carbon dioxide into the Calvin-Benson cycle is

Correct AnswerverifiedShow Answer

According to evidence from ice layers from the Antarctic, atmospheric carbon dioxide levels have been rising since

Correct AnswerverifiedShow Answer

Most of the colors we see around us result from

Correct AnswerverifiedShow Answer

Classification . The processes listed below represent major chemical pathways in the photosynthetic process. Answer the questions with reference to these five processes:

The carbon dioxide acceptor in the Calvin-Benson cycle of photosynthesis is

Correct AnswerverifiedShow Answer

How many ATP form in the third stage of aerobic respiration?

Correct AnswerverifiedShow Answer

The splitting of water in photosynthesis

Correct AnswerverifiedShow Answer

Which of the following molecules did the first life on earth more likely use for extracting energy and carbon?

Correct AnswerverifiedShow Answer

Photosystems are located in

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified