In the lipid bilayer of the plasma membrane, the fatty acid tails of the phospholipids face one another in the center of the membrane.

a. true
b. false


Answer: b. false

Biology & Microbiology

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Error bars on a graph indicate

a. places where the data is likely wrong. b. places where the researcher is unsure of her results. c. variation in results that cannot be accounted for. d. variation in a set of data around the average. e. poor experimental technique on the part of the researcher.

Biology & Microbiology

NADP+ gets its electrons to become NADPH

in the light-dependent reactions of photosynthesis from

a. ATP synthase b. the flow of hydrogen ions c. electron transfer chains d. oxygen gas e. glucose

Biology & Microbiology

During ____, microtubules fasten the cell’s chromosomes to the spindle poles

a. prophase I b. anaphase II c. metaphase I d. metaphase II e. telophase I

Biology & Microbiology

Trichoplax

a. is a small, flattened, soft-bodied marine animal. b. is placed with sponges on the animal family tree. c. has the smallest genome of all the animals. d. has no mouth but rather uses extracellular digestion and absorption. e. fits all of these descriptions.

Biology & Microbiology