A cell membrane is a lipid _________ because the phospholipids line up in TWO ROWS to try and keep their ______________ tails away from water.

Fill in the blank(s) with the appropriate word(s).


Ans: bilayer; hydrophobic

Biology & Microbiology

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FSH in males targets ________ cells, which indirectly enhances sperm formation

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following is the ultimate source of chemical energy for all living organisms?

a. glucose b. photosynthesis c. GTP d. cellular respiration

Biology & Microbiology

The negative logarithm of the hydrogen ion concentration in the solution is referred to as

A. electronegativity. B. specific heat. C. pH. D. atomic mass. E. OH- concentration.

Biology & Microbiology

Sexual reproduction is important to the survival of a species in a changing environment because

a)sexual reproduction requires less overall energy expenditure than asexual reproduction. b)sexual reproduction produces genetically different individuals. c)sexual reproduction requires only one individual. d)sexual reproduction produces genetically-identical individuals. e)All answers are correct.

Biology & Microbiology