In a muscle contraction, what specifically is the
role of calcium?
a. it causes the hydrolysis of ATP
b. it connects actin with myosin to form a
cross-bridge
c. it causes the uncovering of the myosin
binding site on actin
d. it catalyzes the formation of ATP from
ADP and Pi
e. it causes the release of Pi from the myosin
head
C
You might also like to view...
Both pathogenic bacteria and primary symbionts have a tendency to lose genes for catabolic pathways
Indicate whether the statement is true or false.
________ places sperm into a woman's reproductive tract to fertilize an oocyte.
A) Sperm washing B) Intrauterine insemination C) GIFT D) IVF
A genet is produced asexually
Indicate whether the statement is true or false
The mutation that causes SCD causes what kind of change in the structure of hemoglobin?
A) decreases heme-binding ability B) fewer chains of amino acids (trimeric rather than tetrameric structure) C) a single amino acid substitution that alters the structure of the tetramer D) addition of a single amino acid that causes a longer protein subunit E) loss of a single amino acid that causes a frameshift and premature stop codon