Quiz about Sarcomere Anatomy

Question 1

What is the smallest unit of a muscle to contract?

Accepted Answer

Sarcomere

Answer

Myofibril

Answer

Muscle fiber

Answer

Myofilaments

Question 2

How many types of myofilaments make up the sarcomere?

Accepted Answer

2

Answer

1

Answer

4

Answer

8

Question 3

Which myofilament is thin?

Accepted Answer

Actin

Answer

Collagen

Answer

Elastin

Answer

Myosin

Question 4

Which myofilament is thick?

Accepted Answer

Myosin

Answer

Collagen

Answer

Elastin

Answer

Acetylcholine

Question 5

Which myofilament has hands to grab the other one?

Accepted Answer

Myosin

Answer

Actin

Question 6

Which myofilament is attached to the z line?

Accepted Answer

Actin

Answer

Myosin

Question 7

Which part of a sarcomere contains only thick filaments?

Accepted Answer

H zone

Answer

I band

Answer

A band

Answer

Z zone

Question 8

Which part of a sarcomere contains only thin filaments?

Accepted Answer

I band

Answer

A band

Answer

H zone

Answer

M zone

Question 9

Which part of a sarcomere is the wall between two different sarcomeres?

Accepted Answer

Z line

Answer

M line

Question 10

Which part of a sarcomere contains BOTH actin and myosin myofilaments?

Accepted Answer

A band

Answer

I band

Answer

H zone

Answer

M line

Question 11

Which part of the sarcomere is the line down the middle of the myosin?

Accepted Answer

M line

Answer

Z line

Answer

I band

Question 12

Which part of the sarcomere is the dark band?

Accepted Answer

A band

Answer

I band

Answer

H zone

Answer

Z line

Question 13

Which part of the sarcomere is the light band?

Accepted Answer

I band

Answer

H zone

Answer

Z line

Answer

M line

Question 14

Which myofilament pulls the other one when a muscle contracts?

Accepted Answer

Myosin pulls actin

Answer

Actin pulls myosin

Question 15

True or False: When a sarcomere contracts, actin and myosin stay the same length.

Accepted Answer

True

Answer

False

Question 16

What is required for myosin to be able to grab and pull actin?

Accepted Answer

Calcium ions

Answer

Magnesium ions

Answer

Elastin and collagen

Answer

Protein and water

Question 17

What happens to the I band when a sarcomere goes from relaxed to contracted?

Accepted Answer

It gets smaller

Answer

It gets larger

Answer

It doesn't change

Question 18

What happens to the Z lines when a sarcomere goes from relaxed to contracted?

Accepted Answer

They get closer together

Answer

They get farther apart

Question 19

What happens to the A band when a sarcomere goes from relaxed to contracted?

Accepted Answer

It doesn't change

Answer

It gets larger

Answer

It gets smaller

Question 20

What happens to the H zone when a sarcomere goes from relaxed to contracted?

Accepted Answer

It gets smaller

Answer

It gets larger

Answer

It doesn't change

Question 21

True or False: When a sarcomere contracts, actin moves further away from the M line.

Accepted Answer

False

Answer

True

Question 22

True or False: When a sarcomere contracts, myosin moves closer to the Z line.

Accepted Answer

True

Answer

False

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science