Question

In the mitochondrion, energy is stored in the form of _______.

• A. adenosine triphosphate (ATP)
• B. adenosine monophosphate (AMP)
• C. citric acid
• D. adenosine diphosphate (ADP)

Answer 1

The correct option is A

adenosine triphosphate (ATP)

The correct option is A:

Explanation of the correct option:

1. Mitochondria use oxygen and bring about stepwise oxidation of foodstuffs (carbohydrates, fats, proteins) present in the cells to produce carbon dioxide and water called cellular respiration.
2. Oxidation of food releases energy which is temporarily stored to form high-energy ATP (adenosine triphosphate) molecules.
3. ATP is used to do energy-requiring activities of the cell.

Explanation of the incorrect option:

Option B:

1. Adenosine monophosphate ( AMP ) is a type of nucleotide.
2. AMP contains a phosphate group, the sugar ribose, and the nucleobase adenine.

Option C:

1. Citric Acid is a weak acid.
2. Citric acid is usually found in citrus fruits like lemons, oranges, etc.

Option D:

1. When the body requires energy, then ATP molecules combine with water and form Adenosine diphosphate (ADP) and provide energy to the body.
2. ATP + Water = ADP + Phosphate + Energy

Final answer: In the mitochondrion, energy is stored in the form of adenosine triphosphate (ATP).