Question

practice multiple choice
circle the best answer.

1. which statement best explains why atp is essential for life?

a. atp stores dna
b. atp provides immediate energy for cell processes
c. atp builds cell walls
d. atp absorbs light energy

Explanation:

• Option A: DNA is stored in nucleic acids (like DNA molecules), not ATP. So A is incorrect.
• Option B: ATP (adenosine triphosphate) is known as the "energy currency" of the cell. It provides immediate energy for various cellular processes by releasing energy when its phosphate bonds are broken. This matches the role of ATP in life.
• Option C: Cell walls are built from materials like cellulose (in plants) or peptidoglycan (in bacteria), not ATP. So C is incorrect.
• Option D: Pigments like chlorophyll absorb light energy in photosynthesis, not ATP. So D is incorrect.

Answer:

B. ATP provides immediate energy for cell processes