In the accompanying figure, the structure labeled “H” is a ____

a. muscle fiber
b. sarcoplasmic reticulum
c. mitochondria
d. myofibril
e. Z line


ANSWER: e

Biology & Microbiology

You might also like to view...

Karyogamy produces a _____.

a) diploid zygote b) haploid zygote c) spores d) mycelium e) hypha

Biology & Microbiology

Proteins assist the human body in which of the following ways?

A. chemical signaling B. fighting off infections C. chemical reactions D. all of the above

Biology & Microbiology

In gel electrophoresis, DNA molecules move toward the ________ electrode because they have an overall ________ charge.

A. negative; negative B. positive; positive C. negative; positive D. positive; negative E. negative and positive; neutral

Biology & Microbiology

Proteins are long chains or polymers made up of

A. nucleotides B. carbohydrates C. amino acids D. lipids

Biology & Microbiology