Why Do Plants Use Cotransporters Instead of Ion Channels to Transfer

question 4

Multiple Choice

Why do plants use cotransporters instead of ion channels to transfer anions into cells?

• A) Cotransporters are able to transfer anions against the proton gradient, but ion channels cannot.
• B) Cotransporters are able to transfer anions against the concentration gradient, but ion channels cannot.
• C) Cotransporters are able to transfer anions against the membrane potential gradient, but ion channels cannot.
• D) Anions are too bulky to be transported by ion channels.

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Definitions:

Sediment Particles

Small fragments of rock, mineral, or organic materials that are transported and deposited by wind, water, or ice.

Erodes Material

The process by which earth, rock, or other materials are worn away by natural forces such as water flow, wind, or ice.

Abrasion

The wearing away of rock or other material surfaces through contact with particles such as sand or pebbles being moved by wind, water, or ice.

Turbulence

A state of fluid flow characterized by chaotic, irregular motion, often encountered in the atmosphere or in flowing water.