BGS, BSGS Bachelor of General Studies BSGS Natural Sciences 4

Question 1

Which molecule serves as the primary energy currency of the cell?

Accepted Answer

ATP

Answer

Adenosine triphosphate (ATP) stores and transfers chemical energy for nearly all cellular processes.

Question 2

What is the speed of light in a vacuum?

Accepted Answer

3 × 10⁸ m/s

Answer

Light travels at approximately 3 × 10⁸ m/s (about 300,000 km/s) in a vacuum, denoted as c.

Question 3

In the water cycle, which process directly converts liquid water into water vapor without reaching boiling point?

Accepted Answer

Evaporation

Answer

Evaporation occurs when water molecules at the liquid surface gain enough kinetic energy to escape into the atmosphere.

Question 4

Which subatomic particle determines the atomic number of an element?

Accepted Answer

Proton

Answer

The atomic number equals the number of protons in the nucleus, uniquely identifying each element on the periodic table.

Question 5

What is the term for symbiosis in which one organism benefits and the other is neither helped nor harmed?

Accepted Answer

Commensalism

Answer

Commensalism describes a relationship where one species benefits (e.g., remora fish on sharks) while the host is unaffected.

BGS, BSGS Bachelor of General Studies Practice Test