Which molecules will pass most easily through a cell membrane by diffusion?
a. large, hydrophilic molecules
b. large, polar molecules
c. small, hydrophobic molecules
d. ionic molecules
Ans: c. small, hydrophobic molecules
Biology & Microbiology
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In any ecosystem, short food chains are more efficient than longer ones. Why is this so?
What will be an ideal response?
Biology & Microbiology
The top carnivore is indicated by
a. A. b. B. c. C. d. D. e. E.
Biology & Microbiology
Connective tissues include lymph, ligaments, tendons, and
A) cardiac muscle. B) skin cells. C) cartilage. D) vessel linings. E) exocrine glands.
Biology & Microbiology
Which substance would be unlikely to function as a coenzyme?
a. a water-soluble vitamin b. an iron ion c. glucose d. NAD+ e. a magnesium ion
Biology & Microbiology