The structure that confers structural strength on the cell is known as the
A) cytoplasmic membrane.
B) cell wall.
C) ribosome.
D) cytoplasm.
Answer: B
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Genetic variations in enzymes that metabolize drugs can produce a(n) ______________ range of drug responses. Fill in the blank(s) with the appropriate word(s)
Several epidemic microbial diseases of earlier centuries incurred high death rates because they resulted in severe dehydration due to vomiting and diarrhea. Today they are usually not fatal because we have developed which of the following?
A) antiviral medications that are efficient and work well with most viruses B) intravenous feeding techniques C) medications to slow blood loss D) hydrating drinks with high concentrations of salts and glucose
Fibrous structural proteins of the extracellular matrix are embedded in gels formed from polysaccharides called
a. elastin. b. fibronectin. c. glycosaminoglycans (GAGs). d. laminin.
If nitrifying bacteria were not present in a soil, plants would ____
a. take up nitrogen for their use mainly as NH4+ b. not survive because they could not get useful nitrogen c. take up nitrogen for their use mainly as N2 d. take up nitrogen for their use mainly as NH3 e. take up nitrogen for their use mainly as NO3-