You have been studying the effect of a concentration gradient on the rate of transport of a nutrient into a bacterial cell. If a carrier protein is involved in the transport of this nutrient, which curve would you expect to see?

A. B
B. A
C. C


Answer: B

Biology & Microbiology

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In males, genes on the X chromosome are

A) expressed. B) disease-causing. C) mutant. D) autosomal.

Biology & Microbiology

When cells are not responding to normal controls over

growth and division, they form a tissue mass known as a a. metastasis. b. malignancy. c. tumor. d. carcinogen. e. nucleosome.

Biology & Microbiology

Refer to Figure 7-2. The line on the graph labeled B represents the:


a. activation energy with an enzyme.
b. activation energy without an enzyme.
c. free energy of the reactants.
d. change in entropy.
e. change in enthalpy

Biology & Microbiology

Describe alternation of generations. Include in your discussion the following terms: gametophyte, sporophyte, diploid,

haploid, dominant form, meiosis, and fertilization. What will be an ideal response?

Biology & Microbiology