Refer to the Diagram Below

question 8

Multiple Choice

Refer to the diagram below.Which statement based on the diagram is true?

• A) Structure 1 has ATPase activity.
• B) Structure 2 blocks sites where myosin can bind.
• C) Structure 3 has one subunit that binds myosin.
• D) Structure 4 shortens in length as the sarcomere contracts.
• E) Structure 5 binds calcium.

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Definitions:

Concentration

Amount of solute per unit volume of a solution.

Cones

Photosensitive cells located in the retina of the eye, responsible for color vision and the ability to perceive fine details.

Fovea

The fovea is a small depression in the retina of the eye where visual acuity is highest. It is densely packed with cones and is crucial for detailed vision.

Receptors

Proteins typically found on cell surfaces that bind to specific molecules, triggering a response in the cell.