Question 1

Which of these equations describes aerobic cellular respiration?

Accepted Answer

A) glucose → lactic acid + energy 
B) energy + carbon dioxide + water → glucose + oxygen + water 
C) glucose + oxygen → carbon dioxide + water + energy 
D) none of the above 
A) glucose → lactic acid + energy 
B) energy + carbon dioxide + water → glucose + oxygen + water 
C) glucose + oxygen → carbon dioxide + water + energy 
D) none of the above

Question 2

Which hypothesis were the poultry scientists likely testing?

Accepted Answer

A) The time of egg laying (oviposition)has an impact on egg weight. 
B) Bigger eggs result in larger mature chickens. 
C) Young hens have a harder time laying eggs than do older hens. 
D) Egg weight is related to the weight of the hatchling (newly hatched chick). 
A) The time of egg laying (oviposition)has an impact on egg weight. 
B) Bigger eggs result in larger mature chickens. 
C) Young hens have a harder time laying eggs than do older hens. 
D) Egg weight is related to the weight of the hatchling (newly hatched chick).

Question 3

Photosynthetic organisms are ________.

Accepted Answer

A) producers that make all of their organic matter from organic molecules that they take in 
B) consumers that obtain organic molecules from other living organisms 
C) producers that make all their own organic matter from inorganic molecules 
D) decomposers that obtain nutrients from the soil 
A) producers that make all of their organic matter from organic molecules that they take in 
B) consumers that obtain organic molecules from other living organisms 
C) producers that make all their own organic matter from inorganic molecules 
D) decomposers that obtain nutrients from the soil

Question 4

ATP synthase plays a role in ________.

Accepted Answer

A) pulling electrons down the electron transport chain 
B) glycolysis 
C) pumping hydrogen ions across the inner mitochondrial membrane 
D) generating ATP 
A) pulling electrons down the electron transport chain 
B) glycolysis 
C) pumping hydrogen ions across the inner mitochondrial membrane 
D) generating ATP

Question 5

Which of these shown in the figure below does NOT begin cellular respiration in the cytoplasm?

Accepted Answer

A) amino acids 
B) fatty acids 
C) glucose 
D) glycerol 
A) amino acids 
B) fatty acids 
C) glucose 
D) glycerol

Question 6

During cellular respiration,electrons move through a series of electron acceptor molecules.Which of the following is a TRUE statement about this process?

Accepted Answer

A) The electrons gain energy as they move from one electron acceptor to another. 
B) Oxygen is eventually reduced by the electrons to form water. 
C) The electrons release large amounts of energy each time they are transferred from one electron acceptor to another. 
D) Glucose is eventually reduced by the electrons to form water. 
A) The electrons gain energy as they move from one electron acceptor to another. 
B) Oxygen is eventually reduced by the electrons to form water. 
C) The electrons release large amounts of energy each time they are transferred from one electron acceptor to another. 
D) Glucose is eventually reduced by the electrons to form water.

Question 7

Large amounts of oxygen gas first appeared in Earth's atmosphere about ________ years ago.

Accepted Answer

A) 500,000 
B) 10 million 
C) 2)7 billion 
D) 3)5 billion 
A) 500,000 
B) 10 million 
C) 2)7 billion 
D) 3)5 billion

Question 8

A child is born with a rare disease in which mitochondria are missing from certain skeletal muscle cells.Physicians find that the muscle cells function.Not surprisingly,they also find that ________.

Accepted Answer

A) the muscles contain large amounts of lactic acid following even mild physical exercise 
B) the muscles contain large amounts of carbon dioxide following even mild physical exercise 
C) the muscles require extremely high levels of oxygen to function 
D) the muscle cells cannot split glucose to pyruvic acid 
A) the muscles contain large amounts of lactic acid following even mild physical exercise 
B) the muscles contain large amounts of carbon dioxide following even mild physical exercise 
C) the muscles require extremely high levels of oxygen to function 
D) the muscle cells cannot split glucose to pyruvic acid

Question 9

What must pyruvic acid be converted to before it can enter the citric acid cycle?

Accepted Answer

A) acetyl CoA 
B) lactic acid 
C) ethyl alcohol 
D) citric acid 
A) acetyl CoA 
B) lactic acid 
C) ethyl alcohol 
D) citric acid

Question 10

If the egg was weighed halfway between being laid and hatching,how would you expect that weight to compare to the weight of the newly hatched chick?

Accepted Answer

A) The egg would weigh more at this midpoint than when newly hatched because,during development,the chick gains new parts. 
B) The egg would weigh more at this midpoint than when newly hatched because it is taking in oxygen. 
C) The egg would weigh less at this midpoint than when newly hatched because the shell wears away over time. 
D) The egg would weigh less at this midpoint than when newly hatched because some of the mass of the egg would be released through cell respiration. 
A) The egg would weigh more at this midpoint than when newly hatched because,during development,the chick gains new parts. 
B) The egg would weigh more at this midpoint than when newly hatched because it is taking in oxygen. 
C) The egg would weigh less at this midpoint than when newly hatched because the shell wears away over time. 
D) The egg would weigh less at this midpoint than when newly hatched because some of the mass of the egg would be released through cell respiration.

Question 11

The waste products of cellular respiration include ________.

Accepted Answer

A) water only 
B) carbon dioxide only 
C) water and carbon dioxide 
D) water and glucose 
A) water only 
B) carbon dioxide only 
C) water and carbon dioxide 
D) water and glucose

Question 12

The figure below shows that ________.

Accepted Answer

A) amino acids can move directly into the electron transport chain 
B) our cells can use sugars,fatty acids,and amino acids to produce ATP 
C) our cells can produce ATP only from glucose 
D) our cells can produce ATP from sugars and glycerol,but not fatty acids 
A) amino acids can move directly into the electron transport chain 
B) our cells can use sugars,fatty acids,and amino acids to produce ATP 
C) our cells can produce ATP only from glucose 
D) our cells can produce ATP from sugars and glycerol,but not fatty acids

Question 13

Lactic acid build up in muscles is a sign that ________.

Accepted Answer

A) aerobic respiration capacity has not been reached 
B) respiration is operating effectively 
C) insufficient oxygen is reaching the muscles 
D) the muscles will be able to operate continuously for a long time 
A) aerobic respiration capacity has not been reached 
B) respiration is operating effectively 
C) insufficient oxygen is reaching the muscles 
D) the muscles will be able to operate continuously for a long time

Question 14

Which of the following statements is TRUE?

Accepted Answer

A) Oxygen is a product of cellular respiration; carbon dioxide is a product of photosynthesis. 
B) Lactic acid is a product of aerobic respiration; ethyl alcohol is a product of fermentation. 
C) Oxidation is the loss of electrons; reduction is the gain of electrons. 
D) Glucose is a product of aerobic respiration; lactic acid is a product of anaerobic respiration. 
A) Oxygen is a product of cellular respiration; carbon dioxide is a product of photosynthesis. 
B) Lactic acid is a product of aerobic respiration; ethyl alcohol is a product of fermentation. 
C) Oxidation is the loss of electrons; reduction is the gain of electrons. 
D) Glucose is a product of aerobic respiration; lactic acid is a product of anaerobic respiration.

Question 15

In aerobic respiration,how many molecules of acetic acid are produced from six molecules of glucose?

Accepted Answer

A) 1 
B) 38 
C) 6 
D) 12 
A) 1 
B) 38 
C) 6 
D) 12

Question 16

What waste product do yeast produce under anaerobic conditions?

Accepted Answer

A) ethyl alcohol 
B) pyruvic acid 
C) lactic acid 
D) creatine 
A) ethyl alcohol 
B) pyruvic acid 
C) lactic acid 
D) creatine

Question 17

Which of the following metabolic pathways is common to both aerobic and anaerobic processes of sugar breakdown?

Accepted Answer

A) the citric acid cycle 
B) the electron transport chain 
C) conversion of pyruvic acid to lactic acid 
D) glycolysis 
A) the citric acid cycle 
B) the electron transport chain 
C) conversion of pyruvic acid to lactic acid 
D) glycolysis

Question 18

In cellular respiration,most ATP is produced DIRECTLY as a result of ________.

Accepted Answer

A) the movement of hydrogen ions across the inner mitochondrial membrane 
B) the citric acid cycle 
C) fermentation 
D) the electron transport chain 
A) the movement of hydrogen ions across the inner mitochondrial membrane 
B) the citric acid cycle 
C) fermentation 
D) the electron transport chain

Question 19

The first electron acceptor of cellular respiration is ________.

Accepted Answer

A) CO₂ 
B) O₂ 
C) NAD⁺ 
D) H₂O 
A) CO₂ 
B) O₂ 
C) NAD⁺ 
D) H₂O

Question 20

What compound directly provides energy for cellular work?

Accepted Answer

A) C₆H₁₂O₆ 
B) glucose 
C) ATP 
D) fat 
A) C₆H₁₂O₆ 
B) glucose 
C) ATP 
D) fat

Exam 6: Cellular Respiration: Obtaining Energy From Food

Which of these equations describes aerobic cellular respiration?

Which hypothesis were the poultry scientists likely testing?

Photosynthetic organisms are ________.

ATP synthase plays a role in ________.

Which of these shown in the figure below does NOT begin cellular respiration in the cytoplasm?

During cellular respiration,electrons move through a series of electron acceptor molecules.Which of the following is a TRUE statement about this process?

Large amounts of oxygen gas first appeared in Earth's atmosphere about ________ years ago.

A child is born with a rare disease in which mitochondria are missing from certain skeletal muscle cells.Physicians find that the muscle cells function.Not surprisingly,they also find that ________.

What must pyruvic acid be converted to before it can enter the citric acid cycle?

If the egg was weighed halfway between being laid and hatching,how would you expect that weight to compare to the weight of the newly hatched chick?

The waste products of cellular respiration include ________.

The figure below shows that ________.

Lactic acid build up in muscles is a sign that ________.

Which of the following statements is TRUE?

In aerobic respiration,how many molecules of acetic acid are produced from six molecules of glucose?

What waste product do yeast produce under anaerobic conditions?

Which of the following metabolic pathways is common to both aerobic and anaerobic processes of sugar breakdown?

In cellular respiration,most ATP is produced DIRECTLY as a result of ________.

The first electron acceptor of cellular respiration is ________.

What compound directly provides energy for cellular work?

Introduction: Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells From Cells

Patterns of Inheritance

The Structure and Function of Dna

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Bodys Defenses

Hormones

Reproduction and Development

Nervous,Sensory,and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

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