Chap 24 Textbook Questions Flashcards Preview

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Flashcards in Chap 24 Textbook Questions Deck (29)
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1

A monosaccharide is formed from a polysaccharide in
what kind of reaction?
a. oxidation–reduction reaction
b. anabolic reaction
c. catabolic reaction
d. biosynthetic reaction

c. catabolic reaction

2

If anabolic reactions exceed catabolic reactions, the
result will be ________.
a. weight loss
b. weight gain
c. metabolic rate change
d. development of disease

b. weight gain

3

When NAD becomes NADH, the coenzyme has been
________.
a. reduced
b. oxidized
c. metabolized
d. hydrolyzed

D. Hydrolyzed

4

Anabolic reactions use energy by ________.
a. turning ADP into ATP
b. removing a phosphate group from ATP
c. producing heat
d. breaking down molecules into smaller parts

b. removing a phosphate group from ATP

5

Glycolysis results in the production of two ________
molecules from a single molecule of glucose. In the
absence of ________, the end product of glycolysis is
________.
a. acetyl CoA, pyruvate, lactate
b. ATP, carbon, pyruvate
c. pyruvate, oxygen, lactate
d. pyruvate, carbon, acetyl CoA

c. pyruvate, oxygen, lactate

6

. The Krebs cycle converts ________ through a cycle of
reactions. In the process, ATP, ________, and ________ are
produced.
a. acetyl CoA; FAD, NAD
b. acetyl CoA; FADH2; NADH
c. pyruvate; NAD; FADH2
d. pyruvate; oxygen; oxaloacetate

b. acetyl CoA; FADH2; NADH

7

Which pathway produces the most ATP molecules?
a. lactic acid fermentation
b. the Krebs cycle
c. the electron transport chain
d. glycolysis

c. the electron transport chain

8

Aerobic cellular respiration results in the production of
these two products.
a. NADH and FADH2
b. ATP and pyruvate
c. ATP and glucose
d. ATP and H2O

d. ATP and H2O

9

When NAD+
becomes NADH, the coenzyme has been
________.
a. reduced
b. oxidized
c. metabolized
d. hydrolyzed

a. reduced

10

Lipids in the diet can be ________.
a. broken down into energy for the body
b. stored as triglycerides for later use
c. converted into acetyl CoA
d. all of the above

d. all of the above

11

The gallbladder provides ________ that aid(s) in
transport of lipids across the intestinal membrane.
a. lipases
b. cholesterol
c. proteins
d. bile salts

d. bile salts

12

Triglycerides are transported by chylomicrons because ________.

A. they cannot move easily in the blood stream because they are fat based, while the blood is water based

B. they are too small to move by themselves

C. the chylomicrons contain enzymes they need for anabolism

D. they cannot fit across the intestinal membrane

A. they cannot move easily in the blood stream because they are fat based, while the blood is water based

13

Which molecule produces the most ATP?
a. carbohydrates
b. FADH2
c. triglycerides
d. NADH

c. triglycerides

14

Which molecules can enter the Krebs cycle?
a. chylomicrons
b. acetyl CoA
c. monoglycerides
d. ketone bodies

b. acetyl CoA

15

Acetyl CoA can be converted to all of the following
except ________.
a. ketone bodies
b. fatty acids
c. polysaccharides
d. triglycerides

c. polysaccharides

16

Digestion of proteins begins in the ________ where
________ and ________ mix with food to break down
protein into ________.
a. stomach; amylase; HCl; amino acids
b. mouth; pepsin; HCl; fatty acids
c. stomach; lipase; HCl; amino acids
d. stomach; pepsin; HCl; amino acids

d. stomach; pepsin; HCl; amino acids

17

Amino acids are needed to ________.
a. build new proteins
b. serve as fat stores
c. supply energy for the cell
d. create red blood cells

a. build new proteins

18

If an amino acid is not used to create new proteins, it
can be ________.
a. converted to acetyl CoA
b. converted to glucose or ketones
c. converted to nitrogen
d. stored to be used later

b. converted to glucose or ketones

19

During the absorptive state, glucose levels are
________, insulin levels are ________, and glucagon levels
________.
a. high; low; stay the same
b. low; low; stay the same
c. high; high; are high
d. high; high; are low

d. high; high; are low

20

Starvation sets in after 3 to 4 days without food. Which
hormones change in response to low glucose levels?
a. glucagon and insulin
b. ketones and glucagon
c. insulin, glucose, and glucagon
d. insulin and ketones

a. glucagon and insulin

21

The postabsorptive state relies on stores of ________
in the ________.
a. insulin; pancreas
b. glucagon; pancreas
c. glycogen; liver
d. glucose; liver

c. glycogen; liver

22

. The body’s temperature is controlled by the ________.
This temperature is always kept between ________.
a. pituitary; 36.5–37.5 °C
b. hypothalamus; 97.7–99.5 °F
c. hypothalamus; 36.5–37.5 °F
d. pituitary; 97.7–99.5 °F

b. hypothalamus; 97.7–99.5 °F

23

Fever increases the body temperature and can induce
chills to help cool the temperature back down. What other
mechanisms are in place to regulate the body temperature?
a. shivering
b. sweating
c. erection of the hairs on the arms and legs
d. all of the above

d. all of the above

24

The heat you feel on your chair when you stand up was
transferred from your skin via ________.
a. conduction
b. convection
c. radiation
d. evaporation

a. conduction

25

A crowded room warms up through the mechanism of
________.
a. conduction
b. convection
c. radiation
d. evaporation

c. radiation

26

A deficiency in vitamin A can result in ________.
a. improper bone development
b. scurvy
c. improper eye development or sight
d. all of the above

c. improper eye development or sight

27

Rickets results in improper bone development in
children that arises from the malabsorption of calcium and
a deficiency in ________.
a. vitamin D
b. vitamin C
c. vitamin B12
d. niacin

a. vitamin D

28

Consuming which type of food will help the most with
weight loss?
a. fats
b. vegetables
c. lean meats
d. fruits

c. lean meats

29

Which of the following is stored in the body?
a. thiamine
b. phosphorous
c. folic acid
d. vitamin C

b. phosphorous