Metabolic Pathways And Energy Production

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Question 1
Free
Multiple Choice

The reactions by which complex molecules are broken down into simpler ones for the body's use are ________ .

Choose correct answer/s
A

transmission reactions

B

catabolic reactions

C

anabolic reactions

D

glucogenesis

E

gluconeogenesis

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Question 2
Free
Multiple Choice

The reactions by which complex molecules are built up for the body's use are ________ .

Choose correct answer/s
A

transmission reactions

B

catabolic reactions

C

anabolic reactions

D

glucogenesis

E

gluconeogenesis

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Question 3
Free
Multiple Choice

Overall,catabolic reactions ________ .

Choose correct answer/s
A

release energy

B

take in energy

C

occur mainly in the liver

D

occur outside the cell membrane

E

take place in the nucleus of the cell

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Question 4
Free
Multiple Choice

Anabolic reactions are reactions that ________ .

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A

use oxidation but not reduction

B

break down large molecules into smaller ones

C

take place in the mitochondria

D

require energy

E

give off energy

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Question 5
Free
Multiple Choice

How many main stages of catabolism are there?

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A

one

B

two

C

three

D

four

E

five

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Question 6
Multiple Choice

The first stage of catabolism is ________ .

Choose correct answer/s
A
the citric acid cycle
B
production of pyruvate
C
production of acetyl-CoA
D
buildup of macromolecules from monomers
E
digestion of large molecules
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Question 7
Multiple Choice

The middle stage of catabolism is the point at which ________ .

Choose correct answer/s
A
acetyl-CoA is produced
B
monomers are produced from macromolecules
C
macromolecules are made from monomers
D
glycogen is converted to glucose
E
excess nutrients are stored as fats
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Question 8
Multiple Choice

Protein synthesis takes place ________ .

Choose correct answer/s
A
in the mitochondria
B
on the endoplasmic reticulum
C
in the nucleus
D
on the ribosomes
E
in the cytosol
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Question 9
Multiple Choice

The main compound used to release energy for metabolism is ________ .

Choose correct answer/s
A
sucrose
B
glucose phosphate
C
adenosine triphosphate
D
ribonucleic acid
E
NA image
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Question 10
Multiple Choice

The components of ATP are ________ .

Choose correct answer/s
A
adenosine,ribose,and three phosphate groups
B
aniline and three phosphate groups
C
alanine,ribose,and three phosphate groups
D
adenine,ribose,and three phosphate groups
E
adenosine,deoxyribose,and three phosphate groups
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Question 11
Multiple Choice

The hydrolysis of ATP to ADP is ________ .

Choose correct answer/s
A
endothermic
B
exothermic
C
isothermic
D
an oxidation
E
a reduction
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Question 12
Multiple Choice

The final products of catabolic reactions are ________ .

Choose correct answer/s
A
carbon dioxide,water,and ammonia
B
glucose,lipids,and glycogen
C
lipids,oxygen,and water
D
RNA and DNA
E
lipids and carbohydrates
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Question 13
Multiple Choice

Which of the three major stages of metabolism includes the citric acid cycle?

Choose correct answer/s
A
stage one
B
stage two
C
stage three
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Question 14
Multiple Choice

The citric acid cycle takes place in the ________ .

Choose correct answer/s
A
mitochondria
B
cytosol
C
cytoplasm
D
Golgi apparatus
E
endoplasmic reticulum
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Question 15
Multiple Choice

Digestion of carbohydrates begins in the ________ .

Choose correct answer/s
A
mouth
B
stomach
C
pancreas
D
small intestine
E
large intestine
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Question 16
Multiple Choice

An enzyme that can facilitate the breakdown of amylose into smaller units is ________ .

Choose correct answer/s
A
glucose phosphatase
B
alcohol dehydrogenase
C
amylase
D
lactase
E
maltase
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Question 17
Multiple Choice

The digestion of protein begins in the ________ .

Choose correct answer/s
A
mouth
B
stomach
C
small intestine
D
large intestine
E
pancreas
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Question 18
Multiple Choice

The initial stage of the digestion of protein is catalyzed by an enzyme called ________ .

Choose correct answer/s
A
chymotrypsin
B
peptidase
C
pepsin
D
amylase
E
trypsin
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Question 19
Multiple Choice

The digestion of fats begins in the ________ .

Choose correct answer/s
A
mouth
B
stomach
C
small intestine
D
gall bladder
E
large intestine
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Question 20
Multiple Choice

The digestion of fats begins when the fat globules are ________ .

Choose correct answer/s
A
emulsified by bile salts
B
attacked by protease enzymes to form smaller fat globules
C
converted to lipoproteins for greater solubility
D
hydrolyzed to glucose and amino acids
E
hydrolyzed to glycerol and fatty acids
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