AS Associate Of Science In Biology

Question 1

Which organelle is responsible for producing ATP through cellular respiration?

Accepted Answer

Mitochondria

Answer

Mitochondria generate most of the cell's ATP through the process of oxidative phosphorylation during cellular respiration.

Question 2

What is the process by which plants convert light energy into chemical energy?

Accepted Answer

Photosynthesis

Answer

Photosynthesis is the process where plants use sunlight, water, and CO₂ to produce glucose and oxygen.

Question 3

Which macromolecule serves as the primary long-term energy storage in animals?

Accepted Answer

Lipids

Answer

Lipids (fats) store more than twice as much energy per gram compared to carbohydrates and serve as the primary long-term energy reserve in animals.

Question 4

During which phase of mitosis do chromosomes align along the cell's equatorial plate?

Accepted Answer

Metaphase

Answer

During metaphase, chromosomes are aligned along the metaphase plate (equatorial plate) by spindle fibers before being pulled apart.

Question 5

What is the role of ribosomes in the cell?

Accepted Answer

Protein synthesis

Answer

Ribosomes are the sites of protein synthesis, translating mRNA sequences into polypeptide chains.

AS - Associate In Science Degrees Practice Test