Question

During cellular respiration, the covalent bonds of a
molecule are broken down to make products. Which
molecule is broken down? (1 point)
water
ADP
sugar
carbon dioxide
Answer
During cellular respiration, four total ATP are produced when pyruvic acid is created. What else is produced as a result of this reaction?(1 point)
Responses

sugar
sugar

water
water

heat
heat

oxygen
Answer
Why does hydrogen bond so tightly to oxygen during cellular respiration?(1 point)
Responses

It is electronegative, but oxygen is not.
It is electronegative, but oxygen is not.

It is more electronegative than oxygen.
It is more electronegative than oxygen.

It is not electronegative, but oxygen is.
It is not electronegative, but oxygen is.

It is less electronegative than oxygen.
Answer
Identify the byproduct of lactic acid fermentation.(1 point)
Responses

oxygen
oxygen

carbon dioxide
carbon dioxide

lactic acid
lactic acid

pyruvic acid
Answer
When a reaction releases more energy than it uses, it is called(1 point)
Responses

emeritus
emeritus

catalyst
catalyst

lactic
lactic

exothermic
exothermic
Answer
How many molecules of pyruvic acid are produced when a single glucose molecule undergoes glycolysis?(1 point)
Responses

2
2

0
0

1
1

4
Answer
Order the atoms involved in cellular respiration from most prevalent to least.(1 point)
Responses

C, H, O
C, H, O

H, O, C
H, O, C

O, H, C
O, H, C

H, C, O
Answer
How many CO2 molecules are produced when three glucose molecules undergo cellular respiration?(1 point)
Responses

18
18

3
3

12
12

6
Answer
Suppose cellular respiration occurs inside an insulated, sealed container. How does the container’s weight change during the reaction?(1 point)
Responses

decreases
decreases

increases
increases

stays the same
stays the same

fluctuates
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