The calcium ions involved in skeletal muscle contraction bind to a(n) ________ subunit.
A. tropomyosin
B. elastin
C. troponin
D. myosin
E. actin
Answer: C
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The spinal cord is part of the central nervous system
Indicate whether this statement is true or false.
Na+ reabsorption of sodium in the kidney plays a role in
a. amino acid reabsorption. b. water reabsorption. c. regulation of ECF osmolality. d. secretion of K+ . e. all of these.
The region superior to the left inguinal region is the ____________ ____________ region.?
Fill in the blank(s) with correct word
Match the form of RNA with its function:
1. rRNA 2. mRNAs 3. tRNA 4. microRNA A. Carries genetic instructions from the nucleus to the site of protein synthesis B. Uses an anticodon to guide its attached amino acid to the complementary codon on the mRNA at the ribosome C. Combines in a complex with proteins to make the large and small subunits of a ribosome D. Can suppress and silence certain mRNAs