Rather than being synthesized in the cell like other second messengers, ___ enters the cell through the plasma membrane.
a. cAMP
b. IP3
c. sodium
d. calcium
e. diacylglycerol
Answer: d. calcium
You might also like to view...
Which bone cell in the diagram below is an osteoclast?
a) A b) B c) C d) D
Properly cooking food is the best defense for prevention of E. coli
Indicate whether the statement is true or false
What process produces most of the NADH that contributes to ATP synthesis in the cell?
A. The mitochondrial proton pumps B. The electron transfer from FADH2 C. The citric acid cycle D. Glycolysis E. Anaerobic fermentation
Sixteen year-old Jake is diagnosed with hydrocephaly. What will this do if left untreated?
A. The brain will shrink and shrivel. B. The excess fluid will exert pressure on his brain. C. The cerebral cortex will absorb the excess fluid and swell. D. Tthe choroid plexus will enlarge. E. The arachnoid granulations will halt their function.