Question

roles of calcium in bacteria
ca²⁺ pump
ca²⁺atpase
na/ca²⁺ exchanger
ca²⁺channel pbh complex
ca²⁺
buffer/sensor proteins
sporulation
chemotaxis
cell cycle
gene expression
host - pathogen interactions
cell wall
cell membrane
how does active transport help maintain cellular homeostasis?
removing excess protein products
degrading foreign dna
maintaining proper molecule concentrations

Explanation:

To determine the answer, we analyze each option:

• "removing excess protein products": Active transport is not primarily for removing excess proteins (usually done by other mechanisms like proteasomes).
• "degrading foreign DNA": Active transport doesn't involve DNA degradation (restriction enzymes or other systems handle this).
• "maintaining proper molecule concentrations": Active transport moves molecules (like ions, nutrients) against gradients to keep internal concentrations stable, which is key for homeostasis.

Answer:

maintaining proper molecule concentrations