How Is the Structure of Kinesin Related to Its Function

question 52

Multiple Choice

How is the structure of kinesin related to its function?

• A) Kinesin has two intertwined polypeptides that make up the stalk and enable it to contract and shorten.
• B) Kinesin has a tail region that binds to vesicles and two heads that can attach to microtubules.
• C) The kinesin tail has an ATP binding site to fuel its activities.
• D) Kinesin has two heads to attach to the vesicle being moved and a tail region that attaches to microtubules.

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Definitions:

Ediacaran

The geological period approximately 635 to 541 million years ago, preceding the Cambrian, known for its distinct soft-bodied fauna.

Photosynthetic Pigments

Substances produced by plants, algae, and certain bacteria to absorb sunlight and convert it into chemical energy during photosynthesis.

Enzymes

Biological molecules that act as catalysts, speeding up reactions in living organisms without being consumed in the process.

Toxins

Poisonous substances produced by living organisms, often used as defense mechanisms against predators or to incapacitate prey.