12. For each transport protein listed below, list the appropriate form of transp

Question

12. For each transport protein listed below, list the appropriate form of transport (passive, primary active, or secondary active): (5 pts) a channel moving K+ from high to low concentration a transporter moving H+ from high to low concentration and K+from low to high concentration an aquaporin a pump moving K+ from low to high concentration an antiporter 13. List the place where each of these reactions occurs. Be as specific as possible. (5 pts) Light reactions Carbon reactions Glycolysis The citric acid cycle Oxidative phosphorylation 14. What is the most effective method of heat loss from a leaf? (2 pts) otent h e a

Explanation / Answer

Answer:

12) Types of solute transports:

K+ from high to low concentration - Passive transport, since the movement is down the concentration gradient through ion channels.

A transporter moving H+ ions from high to low and K+ from low to high - Secondary active transport, where transport of two solutes simultaneously requires an indirect form of energy.

Aquaporins: Passive transport of water by facilitated diffusion through selective pores.

A pump moving K+ ions from low to high concentrations - Primary active transport since energy is directly needed for the process.

An antiporter: Secondary passive transport, which carries two solutes in opposite directions.

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