1. As a muscle fiber relaxes, the distance between the M lines and Z lines ___, and the width of the H zone _. 1st blank: (lines...) A) increases B) stays the same C) decreases 2nd blank: (zone...) A) increases B) stays the same C) decreases 2. Here, you'll focus on a section of a single myofibril, isolated from the rest of the muscle fiber. This myofibril section is ___ sarcomere(s) long. A) less than one B) about two C) more than three

Name: 1 as a muscle fiber relaxes the distance between the m lines and z lines and the width of the h zone 1st blank lines a increases b stays the same c decreases 2nd blank zone a inc 13339
Uploaded: 2024-06-22T11:47:41-08:00
Duration: 2 min 14 s
Channel: Adi S
Description: 1 as a muscle fiber relaxes the distance between the m lines and z lines and the width of the h zone 1st blank lines a increases b stays the same c decreases 2nd blank zone a inc 13339

          1. As a muscle fiber relaxes, the distance between the M lines and Z lines _____, and the width of the H zone _____.
1st blank: (lines...)
A) increases
B) stays the same
C) decreases
2nd blank: (zone...)
A) increases
B) stays the same
C) decreases
2. Here, you'll focus on a section of a single myofibril, isolated from the rest of the muscle fiber. This myofibril section is _____ sarcomere(s) long.
A) less than one
B) about two
C) more than three

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Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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06/22/2024

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1. As a muscle fiber relaxes, the distance between the M lines and Z lines _____, and the width of the H zone _____. 1st blank: (lines...) A) increases B) stays the same C) decreases 2nd blank: (zone...) A) increases B) stays the same C) decreases 2. Here, you'll focus on a section of a single myofibril, isolated from the rest of the muscle fiber. This myofibril section is _____ sarcomere(s) long. A) less than one B) about two C) more than three