Question 1

The overall equation for the cellular respiration of glucose is

Accepted Answer

A)   C5H12O6 + 6 O2 → 5 CO2 + 6 H2O + energy.
B)   5 CO2 + 6 H2O → C5H12O6 + 6 O2 + energy.
C)   C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy.
D)   C6H12O6 + energy → 6 CO2+ 6 H2O + 6 O2.

Question 2

Which of the following statements regarding food is false?

Accepted Answer

A)   Food provides the raw materials for biosynthetic pathways that make molecules for cellular repair and growth.
B)   Food provides the raw materials for biosynthetic pathways that can produce molecules that are not actually present in the original food.
C)   Food provides the raw materials for biosynthetic pathways that can produce sugar by a process that is the exact opposite of glycolysis.
D)   Food provides the raw materials for biosynthetic pathways that consume ATP.

Question 3

A student studying bird development recorded the mass of eggs from the time they were laid until the time they hatched in order to relate the mass of the egg to the final mass of the chick.
 
-Which of these lines represents the pattern of change in mass over that time?

Accepted Answer

A)   A
B)   B
C)   C

Question 4

The conversion of CO2 and H2O into organic compounds using energy from light is called

Accepted Answer

A)   glycolysis.
B)   photosynthesis.
C)   fermentation.
D)   cellular respiration.

Question 5

The Pasteur effect shows that yeasts consume glucose at a higher rate under anaerobic conditions than under aerobic conditions. Which of the following statements correctly explains this observation?

Accepted Answer

A)   Yeasts are obligate anaerobes, so aerobic conditions will kill yeasts.
B)   Yeasts are photosynthetic, so they are able to produce their own oxygen.
C)   Less ATP is made under anaerobic conditions, so more glucose must be consumed to produce an equivalent amount of ATP.

Question 6

Which of the following statements regarding photosynthesis and cellular respiration is true?

Accepted Answer

A)   Photosynthesis occurs in chloroplasts, and cellular respiration occurs in mitochondria.
B)   Photosynthesis occurs in mitochondria, and cellular respiration occurs in chloroplasts.
C)   Photosynthesis occurs in mitochondria and in chloroplasts.
D)   Cellular respiration occurs in mitochondria and in chloroplasts.

Question 7

Food provides

Accepted Answer

A)   raw materials for biosynthesis only.
B)   energy for cell activities only.
C)   raw materials for biosynthesis and energy for cell activities.

Question 8

Which of the following processes produces the most ATP per molecule of glucose oxidized?

Accepted Answer

A)   aerobic respiration
B)   alcoholic fermentation
C)   lactic acid fermentation

Question 9

The mitochondrial cristae are an adaptation that

Accepted Answer

A)   permits the expansion of mitochondria as oxygen accumulates in the mitochondrial matrix.
B)   helps mitochondria divide during times of greatest cellular respiration.
C)   increases the space for more copies of the electron transport chain and ATP synthase complexes.
D)   carefully encloses the DNA housed within the mitochondrial matrix.

Question 10

A kilocalorie is defined as

Accepted Answer

A)   the quantity of glucose needed to increase the body temperature by 1°C.
B)   the quantity of heat needed to raise the temperature of 1 kg of water by 1°C.
C)   the quantity of food used to maintain normal bodily functions.
D)   the quantity of food consumed during a given type of exercise.

Question 11

Cellular respiration demonstrates the theme of matter and energy in that

Accepted Answer

A)   matter in food is turned into energy in ATP.
B)   energy in food is transferred to energy in ATP.
C)   matter in ATP is used to fuel biosynthesis.
D)   energy in food becomes matter in forming new molecules.

Question 12

Most bats are inactive during the day (this is known as torpor)  and feed during the night. The graph below shows hypothetical data for a bat species.
 
-Based on this graph, what is the relationship between metabolic rate and body temperature?

Accepted Answer

A)   When metabolic rate drops, so does body temperature.
B)   When metabolic rate drops, body temperature rises.
C)   When metabolic rate drops, body temperature remains constant.

Question 13

As a result of glycolysis, there is a net gain of ________ ATP(s) .

Accepted Answer

A)   0
B)   1
C)   2
D)   36

Question 14

Bacteria that are unable to survive in the presence of oxygen are called

Accepted Answer

A)   obligate anaerobes.
B)   obligate aerobes.
C)   facultative anaerobes.

Question 15

In the electron transport chain, the final electron acceptor is

Accepted Answer

A)   oxygen
B)   carbon dioxide.
C)   water.
D)   ADP.

Question 16

DNP is a chemical that has been used by people to lose weight. However, it is a dangerous option and has caused several people to die. DNP works in a fashion similar to that of brown fat. Based on this information, how would DNP cause weight loss and death?

Accepted Answer

A)   DNP must prevent food from being consumed aerobically, so cells instead perform fermentation, and lactate buildup is deadly.
B)   DNP must increase the rate of substrate-level phosphorylation, causing NADH to be produced more quickly than it can be used by the electron transport chain.
C)   DNP must block cells from using fats and proteins to make ATP.
D)   DNP must increase metabolism of food by producing heat instead of ATP.

Question 17

During cellular respiration, NADH

Accepted Answer

A)   is chemically converted into ATP.
B)   is reduced to form NAD+.
C)   delivers its electron load to the first electron carrier molecule.
D)   is the final electron acceptor.

Question 18

Which of the following statements about the energy yields from cellular respiration is true?

Accepted Answer

A)   Cellular respiration is more efficient at harnessing energy from glucose than car engines are at harnessing energy from gasoline.
B)   Cellular respiration converts all of the energy in glucose into energy in ATP.
C)   Cellular respiration converts the kinetic energy of glucose into chemical energy.
D)   The heat produced during cellular respiration is only a tiny fraction of the chemical energy available in a glucose molecule.

Question 19

The end products of glycolysis include

Accepted Answer

A)   NADH.
B)   acetyl CoA.
C)   citric acid.
D)   O2.

Question 20

During which of the following phases of cellular respiration does substrate-level phosphorylation take place?

Accepted Answer

A)   glycolysis only
B)   the citric acid cycle only
C)   oxidative phosphorylation only
D)   glycolysis and the citric acid cycle

Exam 6: How Cells Harvest Chemical Energy

Cellular respiration demonstrates the theme of matter and energy in that

Correct AnswerverifiedShow Answer

The conversion of CO2 and H2O into organic compounds using energy from light is called

Correct AnswerverifiedShow Answer

The overall equation for the cellular respiration of glucose is

Correct AnswerverifiedShow Answer

During which of the following phases of cellular respiration does substrate-level phosphorylation take place?

Correct AnswerverifiedShow Answer

A kilocalorie is defined as

Correct AnswerverifiedShow Answer

A student studying bird development recorded the mass of eggs from the time they were laid until the time they hatched in order to relate the mass of the egg to the final mass of the chick. -Which of these lines represents the pattern of change in mass over that time?

Correct AnswerverifiedShow Answer

Which of the following processes produces the most ATP per molecule of glucose oxidized?

Correct AnswerverifiedShow Answer

In the electron transport chain, the final electron acceptor is

Correct AnswerverifiedShow Answer

Bacteria that are unable to survive in the presence of oxygen are called

Correct AnswerverifiedShow Answer

Food provides

Correct AnswerverifiedShow Answer

Which of the following statements regarding photosynthesis and cellular respiration is true?

Correct AnswerverifiedShow Answer

The end products of glycolysis include

Correct AnswerverifiedShow Answer

During cellular respiration, NADH

Correct AnswerverifiedShow Answer

Which of the following statements about the energy yields from cellular respiration is true?

Correct AnswerverifiedShow Answer

As a result of glycolysis, there is a net gain of ________ ATP(s) .

Correct AnswerverifiedShow Answer

The mitochondrial cristae are an adaptation that

Correct AnswerverifiedShow Answer

DNP is a chemical that has been used by people to lose weight. However, it is a dangerous option and has caused several people to die. DNP works in a fashion similar to that of brown fat. Based on this information, how would DNP cause weight loss and death?

Correct AnswerverifiedShow Answer

Most bats are inactive during the day (this is known as torpor) and feed during the night. The graph below shows hypothetical data for a bat species. -Based on this graph, what is the relationship between metabolic rate and body temperature?

Correct AnswerverifiedShow Answer

The Pasteur effect shows that yeasts consume glucose at a higher rate under anaerobic conditions than under aerobic conditions. Which of the following statements correctly explains this observation?

Correct AnswerverifiedShow Answer

Which of the following statements regarding food is false?

Correct AnswerverifiedShow Answer

Correct Answer
verified

The conversion of CO₂and H₂O into organic compounds using energy from light is called

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