Which statement about resting potential is true?
A) A resting membrane allows much more sodium than potassium to diffuse across it.
B) The concentration of sodium is much higher inside the cell than outside.
C) The resting potential exists because of differences in glucose concentration inside and outside the cell.
D) The sodium-potassium pump contributes to the resting membrane potential.
Answer: D
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In which part of a chloroplast does
photosynthesis occur?
a. the stroma b. the outermost membrane c. the innermost membrane d. the DNA e. the ribosomes
Aristotle’s ideas on the natural world greatly influenced ____, who believed that the “great chain of being” extended
from ____.
a. Asian beliefs; lifeless forms to humans b. Hindu systems of thought; plants to spiritual beings c. tribal beliefs; lifeless forms to spiritual beings d. later European thinkers; plants to spiritual beings e. Thomas Malthus’ treatise on population; lifeless forms to mammals
Which of the following is abiotic?
A) a protist B) a plant C) a fungus D) a rock
Which pair of activities are carrier molecules involved in?
a. passive transport and osmosis b. active and passive transport c. active transport and osmosis d. osmosis and diffusion