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