Abscisic acid binding causes a plant cell to release a gas called nitric oxide (NO), which increases ____ levels within the cell
a. nitrogen
b. calcium
c. chlorine
d. potassium
e. sodium
b
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Answer the question using the accompanying figure. During metamorphosis of a tadpole, 'A' is the ____
a. thyroid b. parathyroid c. hypothalamus
d. adrenal cortex e. posterior pituitary
Which is NOT TRUE about chemoautotrophs?
a. They were the first cells on earth. b. They thrived on oxygen. c. They used methane as a carbon source. d. Many became extinct with the arrival of photoautotrophs. e. They did not use solar energy to feed themselves.
Which of the following is not one of the four stages of the aerobic respiration of glucose?
a. glycolysis b. formation of acetyl CoA c. hydrolysis d. citric acid cycle e. electron transport
Where does translation occur in eukaryotes?
A) In the nucleus only B) Both in the nucleus and in the cytoplasm C) In the cytoplasm only D) In neither the nucleus nor the cytoplasm