Question 1: Why would the breast meat of a pigeon consist of dark meat? It is co

Question

Question 1:

Why would the breast meat of a pigeon consist of dark meat?

It is composed of slow muscle fibers.

It is composed of fast muscle fibers.

It is composed of smooth muscle.

It is composed of intermediate muscle fibers.

Question 2:

The body of a _______ is adapted to resist _______.

fish; drag

Question 3:

Match the words (inhibits, stimulates) in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

WORD BANK: inhibits, stimulates

1. Acetylcholine ______ force of contraction of cardiac muscle.

2. Acetylcholine ______  skeletal muscle to contract.

3. Acetylcholine _____ the rate of contraction of cardiac muscle.

Question 4:

The force exerted by the shortening of a sarcomere depends on the length of the sarcomere when the stimulus is received. Based on your understanding of the sliding-filament model, predict how force would differ if the sarcomere were in a greatly stretched state at the beginning of the contraction versus in an average resting position. Explain.

Question 5

What will occur if acetylcholine is not released from the neuromuscular junction?

bird; buoyant forces bird; inertial forces fish; gravitational forces

fish; drag

Question 3:

Match the words (inhibits, stimulates) in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

WORD BANK: inhibits, stimulates

1. Acetylcholine ______ force of contraction of cardiac muscle.

2. Acetylcholine ______  skeletal muscle to contract.

3. Acetylcholine _____ the rate of contraction of cardiac muscle.

Question 4:

The force exerted by the shortening of a sarcomere depends on the length of the sarcomere when the stimulus is received. Based on your understanding of the sliding-filament model, predict how force would differ if the sarcomere were in a greatly stretched state at the beginning of the contraction versus in an average resting position. Explain.

Question 5

What will occur if acetylcholine is not released from the neuromuscular junction?

Nothing; acetylcholine is only present in neurons. Paralysis Sustained muscle contraction Binding of myosin to actin

Explanation / Answer

Answer:

1.

Breast meat of pigeon consist of dark meat consist of slow muscle fibres.

Hence, option (a) is correct answer.

2.

The body of fish is adapted to resist drag.

Hence, option(d) is correct answer.

3.

Acetylcholine __inhibits____ force of contraction of cardiac muscle.

2. Acetylcholine ___stimulates___  skeletal muscle to contract.

3. Acetylcholine ___Inhibts__ the rate of contraction of cardiac muscle.

5.if acetylcholine is not released from the neuromuscular junction it can cause paralysis.

Hence, option (B) is correct answer.

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