Which of the following processes requires a carrier protein?

A) diffusion only
B) facilitated diffusion only
C) active transport only
D) endocytosis only
E) both facilitated diffusion and active transport


E

Biology & Microbiology

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The resting potential of a particular nerve cell is -66 mV. Depolarization of the membrane will shift the membrane potential toward

A) -90 mV. B) -66 mV. C) 0 mV. D) There will be no change. E) There is not enough information to tell.

Biology & Microbiology

In 2006, the greatest use of energy in the United States was _____

1.nuclear energy going to industry 2.natural gas for residential and commercial uses 3.petroleum used for transportation 4.petroleum used in industry

Biology & Microbiology

All of the following are problems that growth causes for cells EXCEPT

A) more demands on DNA. B) excess oxygen. C) obtaining enough food. D) expelling wastes.

Biology & Microbiology

In females, the egg passes from the ovary to the uterus via the __________, and fertilization

occurs in the __________.

a. oviduct; oviduct b. oviduct; uterus c. urethra; oviduct d. urethra; vagina

Biology & Microbiology