In smooth muscle cells, ________ functions in a manner analogous to troponin.
A. myoglobin
B. tropomyosin
C. titin
D. calmodulin
Answer: D
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a) Adenosine diphosphate b) GTP c) Adenosine monophosphate d) Metabolic water e) Glucose
Riboswitches are folded RNAs that act as switches to turn protein synthesis on or off in response to ________
A) specific codes from the DNA B) changes in the environment C) the presence or absence of ubiquitins D) specific tRNAs
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A) pyridoxine (B6). B) pantothenic acid. C) riboflavin. D) folic acid (folate). E) niacin.
The ________ is the site of sperm maturation and storage.
A. seminiferous tubules B. rete testis C. epididymis D. ductus (vas) deferens E. spermatic cord