Question 1

Photosynthesis converts the energy of light into ____.

Accepted Answer

A) pigments 
B) chemical bond energy 
C) proteins 
D) electrons and protons 
E) heat energy 
A) pigments 
B) chemical bond energy 
C) proteins 
D) electrons and protons 
E) heat energy

Question 2

The yield of ATP per glucose molecule in fermentation is ____.

Accepted Answer

A) ​2 
B) 6​ 
C) ​12 
D) ​36 
E) ​40 
A) ​2 
B) 6​ 
C) ​12 
D) ​36 
E) ​40

Question 3

What is the role of oxygen gas in aerobic respiration?

Accepted Answer

A) To provide electrons for NADH 
B) To accept energy from glucose 
C) To accept electrons from electron transport 
D) To provide kinetic energy for ATP synthase 
E) To donate electrons for electron transport 
A) To provide electrons for NADH 
B) To accept energy from glucose 
C) To accept electrons from electron transport 
D) To provide kinetic energy for ATP synthase 
E) To donate electrons for electron transport

Question 4

Which three-carbon molecule is produced by glycolysis, and then enters the Krebs cycle after conversion to a two-carbon molecule?

Accepted Answer

A) acetyl CoA 
B) pyruvate 
C) glucose 
D) carbon dioxide 
E) oxygen 
A) acetyl CoA 
B) pyruvate 
C) glucose 
D) carbon dioxide 
E) oxygen

Question 5

Match between columns
                        Premises: A pathway used by white muscle fibers

Accepted Answer

The Answer of glycolysis and the Krebs cycle and lactate is...

Question 6

Biofuels ____.

Accepted Answer

A) are a renewable source of energy 
B) do not produce carbon dioxide when burned 
C) are made from organic remains of ancient organisms 
D) release energy without using oxygen 
E) do not damage the environment 
A) are a renewable source of energy 
B) do not produce carbon dioxide when burned 
C) are made from organic remains of ancient organisms 
D) release energy without using oxygen 
E) do not damage the environment

Question 7

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 across the thylakoid membrane 
C) facilitated diffusion across the thylakoid membrane 
D) active transport through ATP synthase 
E) passive diffusion through ATP synthase 
A) passive diffusion directly across the thylakoid membrane 
B) active transport across the thylakoid membrane 
C) facilitated diffusion across the thylakoid membrane 
D) active transport through ATP synthase 
E) passive diffusion through ATP synthase

Question 8

For six molecules of carbon dioxide fixed in the light-independent reaction, how many molecules of PGA are produced?

Accepted Answer

A) ​2 
B) ​4 
C) ​6 
D) ​12 
E) ​18 
A) ​2 
B) ​4 
C) ​6 
D) ​12 
E) ​18

Question 9

Match between columns
                        Premises: The next to the last step in this pathway is the formation of acetaldehyde

Accepted Answer

The Answer of electron transfer phosphorylation and lactate fermentation and is...

Question 10

Fossil fuels ____.

Accepted Answer

A) can be recycled 
B) are produced by living organisms 
C) are the organic remains of ancient organisms 
D) can reduce climate change 
E) release less energy than wood when they are burned 
A) can be recycled 
B) are produced by living organisms 
C) are the organic remains of ancient organisms 
D) can reduce climate change 
E) release less energy than wood when they are burned

Question 11

In eukaryotes, the electron transfer chain of aerobic respiration is located ____.

Accepted Answer

A) in the intermembrane space of mitochondria 
B) in the matrix of mitochondria 
C) on the inner membrane of mitochondria 
D) in the outer membrane of mitochondria 
E) throughout the cytoplasm of the cell 
A) in the intermembrane space of mitochondria 
B) in the matrix of mitochondria 
C) on the inner membrane of mitochondria 
D) in the outer membrane of mitochondria 
E) throughout the cytoplasm of the cell

Question 12

Match between columns
                        Premises: What occurs at the end of the process indicated by label 6?

Accepted Answer

The Answer of final acceptor of electrons and release of is...

Question 13

The proportion of white muscle fibers to red muscle fibers in sprinters is likely to ____.

Accepted Answer

A) be lower than in marathon runners 
B) be higher than in marathon runners 
C) be equal to that in marathon runners 
D) depend most on the sex of the sprinter 
E) depend most on the age of the sprinter 
A) be lower than in marathon runners 
B) be higher than in marathon runners 
C) be equal to that in marathon runners 
D) depend most on the sex of the sprinter 
E) depend most on the age of the sprinter

Question 14

Why are fats a better source of energy than carbohydrates on a per carbon basis?

Accepted Answer

A) Fats are comprised of other atoms besides carbon and oxygen that increase its ATP yield. 
B) Fats have more hydrogenbound in its fatty acid chains, which allows them to react more with oxygen. 
C) Fats do not completely break down, and the by-products increase ATP yield. 
D) Fats require fewer reactions with oxygen to completely break down, thus increasing its ATP yield. 
E) Fats require more reactions with oxygen to completely break down. 
A) Fats are comprised of other atoms besides carbon and oxygen that increase its ATP yield. 
B) Fats have more hydrogenbound in its fatty acid chains, which allows them to react more with oxygen. 
C) Fats do not completely break down, and the by-products increase ATP yield. 
D) Fats require fewer reactions with oxygen to completely break down, thus increasing its ATP yield. 
E) Fats require more reactions with oxygen to completely break down.

Question 15

Before the evolution of photosynthesis, early cells extracted energy from ____.

Accepted Answer

A) oxygen 
B) ATP 
C) NADPH 
D) water 
E) methane 
A) oxygen 
B) ATP 
C) NADPH 
D) water 
E) methane

Question 16

Hydrogen ion flow out of the thylakoid compartments ____.

Accepted Answer

A) occurs between photosystems I and II 
B) is called the hydrogen transfer system 
C) provides energy to produce ATP molecules 
D) causes excitation of chlorophyll molecules 
E) requires the intermediary action of acceptor molecules 
A) occurs between photosystems I and II 
B) is called the hydrogen transfer system 
C) provides energy to produce ATP molecules 
D) causes excitation of chlorophyll molecules 
E) requires the intermediary action of acceptor molecules

Question 17

How many ATP molecules (net yield)are produced per molecule of glucose during glycolysis?

Accepted Answer

A) ​1 
B) ​2 
C) ​4 
D) ​36 
E) ​38 
A) ​1 
B) ​2 
C) ​4 
D) ​36 
E) ​38

Question 18

The main producers for the human food chain are ____.

Accepted Answer

A) farmers 
B) light 
C) plants 
D) cows 
E) methane 
A) farmers 
B) light 
C) plants 
D) cows 
E) methane

Question 19

As early organisms evolved the ability to harness energy from the sun, other organisms began to die out because they were ____.

Accepted Answer

A) destroyed by a meteorite 
B) outcompeted by multi-celled organisms 
C) consumed by dinosaurs 
D) poisoned by oxygen gas 
E) starved 
A) destroyed by a meteorite 
B) outcompeted by multi-celled organisms 
C) consumed by dinosaurs 
D) poisoned by oxygen gas 
E) starved

Question 20

Match between columns
                        Premises: Which process is indicated by label 7?

Accepted Answer

The Answer of replacement of electrons by hydrolysis and final is...

Exam 5: Capturing and Releasing Energy

Photosynthesis converts the energy of light into ____.

The yield of ATP per glucose molecule in fermentation is ____.

What is the role of oxygen gas in aerobic respiration?

Which three-carbon molecule is produced by glycolysis, and then enters the Krebs cycle after conversion to a two-carbon molecule?

Biofuels ____.

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

For six molecules of carbon dioxide fixed in the light-independent reaction, how many molecules of PGA are produced?

Fossil fuels ____.

In eukaryotes, the electron transfer chain of aerobic respiration is located ____.

The proportion of white muscle fibers to red muscle fibers in sprinters is likely to ____.

Why are fats a better source of energy than carbohydrates on a per carbon basis?

Before the evolution of photosynthesis, early cells extracted energy from ____.

Hydrogen ion flow out of the thylakoid compartments ____.

How many ATP molecules (net yield)are produced per molecule of glucose during glycolysis?

The main producers for the human food chain are ____.

As early organisms evolved the ability to harness energy from the sun, other organisms began to die out because they were ____.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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