The diagram shows the rate of diffusion into a cell using carrier proteins.
The rate of diffusion will increase as
A. the number of glucose molecules decreases.
B. pH rises.
C. the number of glucose molecules increases.
D. temperature decreases.
Answer: C
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A(n) ______ vector is an animal that not only transports an infectious agent from one host to another but plays a role in the life cycle of the pathogen
Fill in the blank(s) with the appropriate word(s).
Longitudinal muscle is indicated by
a. A. b. B. c. C. d. D. e. E.
Which property of RNA makes some RNA molecules able to act as catalysts?
a. They are single-stranded molecules that can fold into very specific shapes. b. They are single-stranded molecules that cannot fold into very specific shapes. c. They are double-stranded molecules. d. They are double-stranded molecules that can fold into very specific shapes.
You lose track of your friend in a store and start looking for her. Which strategy represents the use of a search image?
A) You ask a woman if she has seen anyone around this part of the store. B) You think about what color clothing your friend is wearing and look for that color. C) You go to the department in the store where your friend most likes to shop. D) You return to the last place you saw your friend.