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
The molecule that is broken down during cellular respiration is sugar.
The byproduct of lactic acid fermentation is lactic acid.
The correct response is: exothermic.
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
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.
Identify the byproduct of lactic acid fermentation.(1 point)
Responses
oxygen
oxygen
carbon dioxide
carbon dioxide
lactic acid
lactic acid
pyruvic acid
When a reaction releases more energy than it uses, it is called(1 point)
Responses
emeritus
emeritus
catalyst
catalyst
lactic
lactic
exothermic
exothermic
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
When a single glucose molecule undergoes glycolysis, 2 molecules of pyruvic acid are produced. Thus, the answer is 2.
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