In skeletal muscle contraction, which of the following undergoes a conformational change when it
binds to a specific ion and then uncovers the crossbridge binding site by causing another factor to be
moved to the grooves in the actin double helix?
a. troponin
b. Ca2+
c. tropomyosin
d. ATP
e. acetylcholine
A
You might also like to view...
Which type of plant would be the most nutritionally valuable to a human?
A) a plant that has no ground tissue B) a plant with 10% ground tissue and 90% vascular tissue C) a plant with minimal reproductive organs D) a plant with 90% ground tissue and 10% vascular tissue
The anamnestic response to an antigen results from
A) a latent period. B) prior antigen exposure. C) TC cell activity. D) antiserum.
In polio virus replication, the function of the antisense (- strand) RNA is to __________.
a. serve as a template for the production of sense (+ strand) RNA b. enhance the pathogenicity of the viral toxins c. become incorporated into the capsid proteins d. be translated for the production of capsid proteins e. allow a virus to enter the nucleus
If you were to replace the phosphate group of a phospholipid with a fatty acid chain, you would have
A. a triglyceride. B. glycerol. C. cholesterol. D. glycolipid.