Steroids are considered to be lipids because they _____.
A) are essential components of cell membranes
B) are not soluble in water
C) are made of fatty acids
D) are hydrophilic compounds
E) contribute to atherosclerosis
Ans: B) are not soluble in water
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Chemical synapses are distinctive for all of the following EXCEPT
a. they require the use of ligand-gated ion channels. b. they require the use of voltage-gated ion channels. c. they may utilize direct neurotransmitters. d. they require the use of vesicles. e. they require proteins.
Which statement about an individual that is homozygous for an allele is not true?
a. Each of its cells possesses two copies of that allele. b. Each of its gametes contains one copy of that allele. c. It is true-breeding with respect to that allele. d. Its parents were necessarily homozygous for that allele. e. It can pass that allele to its offspring.
The ________ are endocrine cells that occur in small clusters in the pancreas
Fill in the blank(s) with correct word
Which one of the following causes a disease characterized by a red rash?
A) Blastomyces B) Coccidioides C) Mycoplasma D) Streptococcus E) RSV