객관식
Turgor pressure helps a seed in which of the following ways?
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34. Vascular Plant Transport
Water Potential
객관식
The proton pump in plant cells __________.
A
pumps H+ into the cell
B
generates energy by producing ATP
C
provides energy for active transport
D
moves H+ and nitrate into the cell
E
pumps H+ out of the cell
검증된 단계별 안내1
Understand the role of a proton pump: Proton pumps are integral membrane proteins that move protons (H+) across a biological membrane, creating a proton gradient.
Recognize the direction of proton movement: In plant cells, the proton pump actively transports protons (H+) out of the cell, which is against their concentration gradient.
Identify the energy source: The proton pump uses energy derived from ATP to move protons out of the cell, which is a form of active transport.
Consider the consequences of proton movement: By pumping protons out, the proton pump creates an electrochemical gradient, which can be used to drive other processes, such as nutrient uptake.
Connect to broader cellular functions: The proton gradient established by the pump is crucial for processes like nutrient transport and pH regulation within the cell.
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