Question

question 3 (mandatory) (0.75 points) when an individual sarcomere undergo contraction, which of the following happens? a band will decrease in size z discs are drawn farther apart h band and i band will decrease in size h band and i band will increase in size

Explanation:

During sarcomere contraction, thin - actin filaments slide over thick - myosin filaments. The H band (region of only myosin) and I band (region of only actin) shorten as the Z - discs move closer together.

Answer:

H band and I band will decrease in size