Question 1

Depending on your body's needs,acetyl-CoA is either directed into the Krebs cycle or

Accepted Answer

A) channeled into fat synthesis. 
B) fermented into alcohol. 
C) sent back to glycolysis. 
D) sent to the electron transport chain. 
E) fermented to lactic acid. 
A) channeled into fat synthesis. 
B) fermented into alcohol. 
C) sent back to glycolysis. 
D) sent to the electron transport chain. 
E) fermented to lactic acid.

Question 2

During fermentation in yeast,acetaldehyde accepts a hydrogen atom from NADH and is converted to _______________.

Accepted Answer

The answer of During fermentation in yeast,acetaldehyde accepts a hydrogen...

Question 3

The Krebs cycle turns _______ times per glucose.
7-1-2013

Accepted Answer

The answer of The Krebs cycle turns _______ times per...

Question 4

The first stage of cellular respiration,called __________,takes place in the cytoplasm of the cell and needs no oxygen.

Accepted Answer

A) glycolysis 
B) Krebs cycle 
C) photorespiration 
D) oxidation 
A) glycolysis 
B) Krebs cycle 
C) photorespiration 
D) oxidation

Question 5

Which of the following is(are)products of the Krebs cycle?

Accepted Answer

A) CO2 and ATP 
B) CO2 ATP,FADH2 
C) ATP and NADH 
D) CO2,ATP,NADH,FADH2 
E) ATP,NADH,FADH2 
A) CO2 and ATP 
B) CO2 ATP,FADH2 
C) ATP and NADH 
D) CO2,ATP,NADH,FADH2 
E) ATP,NADH,FADH2

Question 6

A proton _______ drives the protons out across the mitochondrial membrane into the intermembrane space.

Accepted Answer

The answer of A proton _______ drives the protons out...

Question 7

What is needed for the end product of glycolysis,pyruvate,to enter the Krebs cycle?

Accepted Answer

A) More glucose for energy 
B) ATP 
C) Carbon dioxide 
D) Oxygen 
A) More glucose for energy 
B) ATP 
C) Carbon dioxide 
D) Oxygen

Question 8

Which stage of cell respiration makes the majority of ATP?

Accepted Answer

A) Glycolysis 
B) Krebs cycle 
C) Electron transport chain 
D) Fermentation 
E) They all produce the same amount 
A) Glycolysis 
B) Krebs cycle 
C) Electron transport chain 
D) Fermentation 
E) They all produce the same amount

Question 9

Which of the following macromolecules can be broken down into intermediate products that enter cellular respiration?

Accepted Answer

A) Proteins 
B) Lipids 
C) Nucleic acids 
D) Carbohydrates 
E) All of the choices are correct 
A) Proteins 
B) Lipids 
C) Nucleic acids 
D) Carbohydrates 
E) All of the choices are correct

Question 10

Explain which process evolved first-glycolysis or the Krebs cycle.

Accepted Answer

Glycolysis evolved first because cells o

Question 11

When ATP is made during glycolysis and the Krebs cycle,it is by

Accepted Answer

A) oxidative phosphorylation. 
B) substrate-level phosphorylation. 
C) photophosphorylation. 
D) chemiosmosis. 
E) ATPasE. 
A) oxidative phosphorylation. 
B) substrate-level phosphorylation. 
C) photophosphorylation. 
D) chemiosmosis. 
E) ATPasE.

Question 12

Which of the following is NOT a catabolic reaction that cells use to get energy from nutrients?

Accepted Answer

A) Cellular respiration 
B) Fermentation 
C) Photosynthesis 
D) Anaerobic respiration 
E) Digestion 
A) Cellular respiration 
B) Fermentation 
C) Photosynthesis 
D) Anaerobic respiration 
E) Digestion

Question 13

ATP is formed when ___________ passes back across the membrane through ATP synthase channels.

Accepted Answer

The answer of ATP is formed when ___________ passes back...

Question 14

Plants do photosynthesis only and animals do cellular respiration only.

Accepted Answer

A) True 
 B)False

Question 15

During which stage(s)of cellular respiration is CO2 produced?

Accepted Answer

A) Glycolysis and Krebs cycle 
B) Krebs cycle only 
C) Electron transport chain 
D) Oxidation of pyruvate to acetyl-CoA and Krebs cycle 
E) Krebs cycle and electron transport chain 
A) Glycolysis and Krebs cycle 
B) Krebs cycle only 
C) Electron transport chain 
D) Oxidation of pyruvate to acetyl-CoA and Krebs cycle 
E) Krebs cycle and electron transport chain

Question 16

How many net ATP are made in glycolysis?

Accepted Answer

A) 1 
B) 2 
C) 6 
D) 34 
E) 38 
A) 1 
B) 2 
C) 6 
D) 34 
E) 38

Question 17

________________ molecules of ATP are generated from the complete cellular respiration of one molecule of glucose.

Accepted Answer

The answer of ________________ molecules of ATP are generated from...

Question 18

Which is incorrect about anaerobic respiration?

Accepted Answer

A) Some organisms use organic molecules as final electron acceptors 
B) Anaerobic respiration consumes a small amount of oxygen 
C) It allows cells to continue to produce ATP through glycolysis 
D) When human muscles are lacking oxygen,lactate is produced 
E) Fermentation recycles NADH back to NAD+ 
A) Some organisms use organic molecules as final electron acceptors 
B) Anaerobic respiration consumes a small amount of oxygen 
C) It allows cells to continue to produce ATP through glycolysis 
D) When human muscles are lacking oxygen,lactate is produced 
E) Fermentation recycles NADH back to NAD+

Question 19

Cellular respiration

Accepted Answer

A) oxidizes glucose and reduces oxygen. 
B) oxidizes oxygen and reduces glucose. 
C) releases energy and reduces water. 
D) requires energy and releases NADH. 
E) releases energy and oxygen. 
A) oxidizes glucose and reduces oxygen. 
B) oxidizes oxygen and reduces glucose. 
C) releases energy and reduces water. 
D) requires energy and releases NADH. 
E) releases energy and oxygen.

Question 20

Glycolysis takes place in the ____________,and the Krebs cycle and electron transport chain take place in the __________.

Accepted Answer

A) mitochondrial matrix;inner mitochondrial membrane 
B) cytoplasm;endoplasmic reticulum 
C) intermembrane space of the mitochondria;mitochondrial matrix 
D) cytoplasm;mitochondria 
E) mitochondria;cytoplasm 
A) mitochondrial matrix;inner mitochondrial membrane 
B) cytoplasm;endoplasmic reticulum 
C) intermembrane space of the mitochondria;mitochondrial matrix 
D) cytoplasm;mitochondria 
E) mitochondria;cytoplasm

Exam 7: How Cells Harvest Energy From Food

Depending on your body's needs,acetyl-CoA is either directed into the Krebs cycle or

During fermentation in yeast,acetaldehyde accepts a hydrogen atom from NADH and is converted to _______________.

The Krebs cycle turns _______ times per glucose. 7-1-2013

The first stage of cellular respiration,called __________,takes place in the cytoplasm of the cell and needs no oxygen.

Which of the following is(are)products of the Krebs cycle?

A proton _______ drives the protons out across the mitochondrial membrane into the intermembrane space.

What is needed for the end product of glycolysis,pyruvate,to enter the Krebs cycle?

Which stage of cell respiration makes the majority of ATP?

Which of the following macromolecules can be broken down into intermediate products that enter cellular respiration?

Explain which process evolved first-glycolysis or the Krebs cycle.

When ATP is made during glycolysis and the Krebs cycle,it is by

Which of the following is NOT a catabolic reaction that cells use to get energy from nutrients?

ATP is formed when ___________ passes back across the membrane through ATP synthase channels.

Plants do photosynthesis only and animals do cellular respiration only.

During which stage(s)of cellular respiration is CO2 produced?

How many net ATP are made in glycolysis?

________________ molecules of ATP are generated from the complete cellular respiration of one molecule of glucose.

Which is incorrect about anaerobic respiration?

Cellular respiration

Glycolysis takes place in the ____________,and the Krebs cycle and electron transport chain take place in the __________.

The Science of Biology

The Chemistry of Life

Molecules of Life

Cells

Energy and Life

Photosynthesis: Acquiring Energy From the Sun

Mitosis

Meiosis

Foundations of Genetics

DNA: the Genetic Material

How Genes Work

Genomics and Biotechnology

Evolution and Natural Selection

How We Name Living Things

Prokaryotes: the First Single-Celled Creatures

Protists: Advent of the Eukaryotes

Fungi Invade the Land

Evolution of the Animal Phyla

History of the Vertebrates

How Humans Evolved

The Animal Body and How It Moves

Circulation

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The Path of Food Through the Animal Body

Maintaining the Internal Environment

How the Animal Body Defends Itself

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Evolution of Plants

Plant Form and Function

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During which stage(s)of cellular respiration is CO₂ produced?

Glycolysis takes place in the __,and the Krebs cycle and electron transport chain take place in the .