The plasma membrane is said to be freely permeable because of the channel proteins.

a. true
b. false


b. false

Biology & Microbiology

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With a __ concentration of LDLs and a __

concentration of HDLs, lipids can build up on artery walls leading to ___.

a. low...high...atherosclerosis b. high...low...atherosclerosis c. high...high...hypertension d. low...low...atherosclerosis e. high...low...hypertension

Biology & Microbiology

Red-green color blindness in humans is an X-linked recessive trait. What will the progeny ratios be if a carrier female is mated with a normal male?

A) All the sons will be color blind; all the daughters will be normal. B) All the sons and half the daughters will be color blind. C) Half the sons will be color blind; all the daughters will be carriers. D) Half the sons will be color blind; half the daughters will be carriers. E) All the sons and all the daughters will be normal.

Biology & Microbiology

The first stage of aerobic respiration is a series of biochemical reactions called the Calvin cycle.

a. true b. false

Biology & Microbiology

Lipopolysaccharide is comprised of three moieties (lipid A, core oligosaccharide, and O-antigen), which require ________ biosynthetic pathway(s).

A. one B. two C. six D. three

Biology & Microbiology