If the ATP-Generating Mechanisms in a Cell Are Poisoned and the Cell

question 6

Multiple Choice

If the ATP-generating mechanisms in a cell are poisoned and the cell depletes its ATP reserves,which would occur first?

• A)Primary active transport of molecules would cease.
• B)Secondary active transport of molecules would cease.
• C)Facilitated diffusion of molecules would cease.
• D)Ion concentration gradients would reach equilibrium across the cell membrane.
• E)All transport processes would cease immediately when the ATP was depleted.

---

Definitions:

DNA Ligase

Enzyme that catalyzes the joining of the 5′ and 3′ ends of two DNA fragments; essential in DNA replication and used in recombinant DNA technology.

Excision Repair Enzymes

A class of enzymes involved in the repair of DNA by recognizing and removing damaged or mismatched nucleotides, followed by filling in the correct sequences.

UV Rays

Short-wavelength ultraviolet radiation that is not visible to the human eye, capable of causing skin burns, eye damage, and other health issues.

Telomerase

An enzyme that adds specific DNA sequence repeats ("telomeres") to the ends of DNA strands in the telomere regions, thereby extending the life of cells.