What is the general design of the fluid mosaic model?
What will be an ideal response?
Ans: the phospholipid bilayer serves as a lipid "lake" in which a variety of proteins "float."
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The ultimate source of energy flowing into nearly all ecosystems is
A. wind. B. sunlight. C. electricity. D. radioactivity.
Farsightedness can be caused by:
a. a longer than normal eyeball b. a shorter than normal eyeball c. weak lens muscles d. a longer than normal eyeball and/or weak ciliary muscles e. a shorter than normal eyeball and/or weak ciliary muscles
Why is eating carrots thought to be useful for enhancing vision?
A. High levels of NADPH in carrots can allow vertebrate eyes to perform the light reactions. B. High levels of carotenoids in carrots can allow vertebrate eyes to perform the dark reactions. C. High levels of chlorophyll in carrots helps with photosynthesis in the eyes. D. High levels of beta-carotene can lead to the production of a pigment used in vision.
Which would have the highest concentration of C—H bonds?
A) Saturated fat B) Unsaturated fat C) Trans fat D) Cholesterol