Photophosphorylation During Photosynthesis Differs from Oxidative Phosphorylation During Cellular Respiration

question 31

Multiple Choice

Photophosphorylation during photosynthesis differs from oxidative phosphorylation during cellular respiration in that

• A)it involves an electron transport chain.
• B)the final electron acceptor is NADP+ and not oxygen.
• C)regeneration of ATP is driven by a flow of protons through an ATP synthase.
• D)energy is stored in the form of a proton concentration difference.

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Definitions:

Calcium Ion Blocking

The process or action of inhibiting the movement of calcium ions through channels, affecting muscle contraction and other physiological activities.

Sarcoplasmic Reticulum

A specialized type of smooth endoplasmic reticulum in muscle cells, involved in the regulation of calcium ions concentration.

Tropomyosin Molecule

A protein that wraps around actin filaments in muscle cells and regulates muscle contraction by controlling the access of myosin to actin.

Tetanus

A bacterial infection characterized by muscle spasms, often starting in the jaw and then spreading to other parts of the body.