Red blood cells are biconcave. Their shape is determined by interior proteins anchored to the membrane termed
A. phospholipids.
B. clathrins.
C. actin filaments.
D. cytoskeleton.
E. spectrins.
Answer: E
You might also like to view...
In the case of temperature regulation, an example of an effector is
(a) a receptor in the brain. (b) a center in the brain. (c) a shivering skeletal muscle. (d) none of the above.
Alzheimer disease has two forms: the early onset _____________________ form with a strong pattern of familial inheritance, and the late onset _____________________ form
Fill in the blank(s) with correct word
Which of the following is the effect of atrazine
on cells?
a. they induce the conversion of testosterone to estrogen b. they block the production of cortisol c. they enhance the production of melatonin d. they cause the conversion of insulin into glucagon e. they prevent TSH from stimulating thyroid hormone production
HIV cannot be transmitted sexually
a. true b. false