Energy in Cells Answers

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1
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Which two groups of organisms contain members that carry out photosynthesis?

A
fungi and plants
B
plants and algae
C
protists and fungi
D
animals and algae
2
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The table shows the number of calories that two people burn when they perform various exercises for one hour each.When does a 600-calorie meal exceed the number of calories burned in two hours?

Question illustration
A
when a 200 lb person plays basketball
B
when a 160 lb person does aerobics
C
when a 200 lb person walks at 3.5 miles per hour
D
when a 160 lb person plays volleyball
3

Which source of energy is ideal for prolonged, low-intensity activity?

A
lipids
B
protein
C
glycogen
D
lactic acid
4

Which product of cellular respiration is used by the human body for energy?

A
oxygen
B
ATP
C
sunlight
D
CO
Option D
5

This diagram shows a cutaway view of a mitochondrion.Which process takes place in the mitochondrion?

Question illustration
A
photosynthesis
B
anaerobic respiration
C
ATP production
D
synthesis of glucose
6

Eugene is running and needs more energy. He drinks a sports drink with sugar, but that sugar needs to be converted to another substance containing chemical energy for his leg muscles to be able to use it. Which process will convert the sugar to energy that his cells can use?

A
cellular respiration
B
photosynthesis
C
breathing
D
energy storage
7

For how many hours could an average person be sustained by the body’s stored glycogen under resting conditions?

A
24 hours
B
2 hours
C
12–14 hours
D
24–48 hours
8

Which process occurs in all living organisms at all times?

A
cellular respiration
B
aerobic respiration
C
anaerobic respiration
D
photosynthesis
9

If a person did not eat for several days, which sequence of events would occur?

A
Glycogen stores would be depleted first, then structural proteins, and then stored lipids.
B
Lipid stores would be depleted first, then stored glycogen, and then structural proteins.
C
Proteins stores would be depleted first, then stored lipids, and then stored glycogen.
D
Glycogen stores would be depleted first, then stored lipids, and then structural proteins.
10

If a person were fasting and hadn’t eaten for several days in a row, which source of energy would the body use as a last resort?

A
lipids
B
protein
C
glycogen
D
lactic acid

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