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Question 3 (Worth 2 points)

(02.02 MC)

This diagram is split into three types of muscle tissue. Image A shows elongated muscle cells with tapered ends and a single nucleus per cell. Image B shows branched muscle cells that have a single nucleus per cell. Image C shows densely-packed, cylinder-shaped muscles cells with multiple nuclei per cell.

© 2014 Custom Medical Stock Photo

Where would muscle A in the image set most likely be found?
Lining of a tendon

Lining of the thigh bone << (answer i chose that is wrong)

Lining of a heart ventricle

Lining of the intestines << (answer that i think is right)

Points earned on this question: 0

Question 4 (Worth 2 points)

(02.03 MC)

Not eating the proper amount of food reduces the availability of ATP in muscle tissue. This will prevent which of the following muscle components from performing its function?

Actin

Myosin <<<

Troponin

Tropomyosin

Points earned on this question: 2

Respuesta :

aaldred8
lining of the thigh bone is correct       YAY

laurabcoronel

Answers:

3) Where would muscle A in the image set most likely be found?

The correct answer is: Lining of the intestines.

The muscle cells described in Image A (elongated muscle cells with tapered ends and a single nucleus per cell) correspond to the description of smooth muscle. Smooth muscle is found in the walls of hollow organs and is responsible for the contraction of these tissues. This contraction is involuntary.

4) Not eating the proper amount of food reduces the availability of ATP in muscle tissue. This will prevent which of the following muscle components from performing its function?

The correct answer is: Myosin.

Myosin is the one protein that relies completely on ATP. If there is no ATP available, myosin can't perform its function and skeletal muscle contraction becomes impossible.

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