During cellular respiration, the covalent bonds of a molecule are broken down to make products. Which molecule is broken down?(1 point)

Question

Responses

sugar
sugar

ADP
ADP

water
water

carbon dioxide

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

water
water

oxygen
oxygen

sugar
sugar

heat

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

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

It is less electronegative than oxygen.
It is less electronegative than oxygen.

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

It is electronegative, but oxygen is not.

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

catalyst
catalyst

exothermic
exothermic

lactic
lactic

emeritus

please double check and make sure answers are correct

Answer 1

Let's go through each question one by one to ensure the answers are correct:

1. Which molecule is broken down during cellular respiration?

   • Answer: sugar
     • This is correct. During cellular respiration, glucose (a type of sugar) is broken down to produce ATP.

2. During cellular respiration, four total ATP are produced when pyruvic acid is created. What else is produced as a result of this reaction?

   • Answer: water
     • The process of cellular respiration, especially through the electron transport chain, produces water as a byproduct, in addition to ATP.

3. Why does hydrogen bond so tightly to oxygen during cellular respiration?

   • Answer: It is less electronegative than oxygen.
     • This is correct. Hydrogen is indeed less electronegative than oxygen, which causes hydrogen atoms to bond tightly to the more electronegative oxygen.

4. Identify the byproduct of lactic acid fermentation.

   • Answer: lactic acid
     • This is correct. Lactic acid is the primary byproduct of lactic acid fermentation in muscle cells.

5. When a reaction releases more energy than it uses, it is called:

   • Answer: exothermic
     • This is correct. Reactions that release more energy than they use are termed exothermic.

In summary, all of your answers are correct.