Explain how both passive transport and active transport are necessary for photosynthesis to occur.

Active transport is used to move protons (H+) against a concentration gradient during photosynthetic electron transport. Moreover, during ATP synthesis, passive transport is used to move H+ through the F0 subunit of the ATP synthase.

Photosynthesis has two stages of chemical reactions: light-dependent reactions and light-independent reactions.

The light-dependent reaction uses the energy from the sun to create ATP, which involves a photosynthetic electron transport chain.

The photosynthetic electron transport chain uses the energy from the sun (photons) to drive the movement of electrons across a series of electron carriers.

The photosynthetic electron transport chain is coupled to the movement by active transport of protons (H+) across the thylakoid membrane of the chloroplast, i.e., the movement of H+ against a concentration gradient, thereby producing an electrochemical gradient.

Subsequently, this H+ gradient is then used to synthesize ATP by an ATP synthase, which has a proton (F0) channel that moves protons in favor of a concentration gradient.

In conclusion, active transport is used to move protons (H+) against a concentration gradient during photosynthetic electron transport. Moreover, during ATP synthesis, passive transport is used to move H+ through the F0 subunit of the ATP synthase.

Learn more in:

link

Passive transport must occur to maintain homeostasis. Active transport must occur to get the needed nutrients in and out of the cell.

Explanation:

bc blah

explanation:

bc blah

the correct answer is:

a population changes in response to a change in the environment.