During muscle contractions, myosin motor proteins move across tracks of ______

Fill in the blank(s) with the appropriate word(s).


Answer: microfilaments

Biology & Microbiology

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Atmospheric pressure is due to the weight

What will be an ideal response?

Biology & Microbiology

Which of the following is absolutely necessary for diffusion to occur?

a. a phospholipid bilayer b. a living cell c. a selectively permeable membrane d. a concentration gradient

Biology & Microbiology

The two strands of a DNA molecule contain nitrogen bases which are

A. parallel. B. complementary. C. identical. D. proportionate. E. random.

Biology & Microbiology

In a relaxed skeletal muscle _____

A) thick and thin filaments overlap to the greatest extent possible B) sarcomeres are at their shortest length C) calcium is released from the sarcoplasmic reticulum D) the Z lines are farthest apart

Biology & Microbiology