Glucose is a relatively stable molecule. It is activated in glycolysis by an initial step of _________
a. condensation
b. hydrolysis
c. oxidation
d. phosphorylation
e. reduction
D
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The process often referred to as "cellular eating" is
A. osmosis. B. pinocytosis. C. phagocytosis. D. diffusion. E. active transport.
Which statement is true?
a. The ability to taste salty allows animals to find high-caloric food. b. Umami was the first taste to be identified by scientists. c. Both the senses of taste and smell create flavor perception. d. Animals are unable to accurately identify odors without taste receptors.
The area in the figure marked “A” is likely to
become a. vacuoles. b. Golgi bodies. c. mitochondria. d. chloroplasts in some cells. e. endoplasmic reticulum.
Life on Earth has experienced several mass extinctions. What likely caused one or more of these extinctions?
A) an asteroid impact B) worldwide drought C) genetic drift D) an increase in large predatory mammals