If the cell was a cube and you doubled the height, width, and length of the cell, how much would the surface area increase?
Cells come in a range of sizes, and a variety of shapes. Assuming a cell type has a conservative cube shape, it may have limits to size, because of the need of materials to diffuse into or out of the cell through the surface area of the cell membrane. Calculate the numerical changes of a cube-shaped cell from an original size of 10 ?m × 10 ?m × 10 ?m.
A. 8-fold
B. It would stay the same.
C. 4-fold
D. 2-fold
E. 6-fold
C. 4-fold
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Refer to Figure 7-2. The line on the graph labeled C represents the:
a. activation energy with an enzyme.
b. activation energy without an enzyme.
c. change in free energy.
d. change in entropy.
e. change in enthalpy.
Cnidarians alone have _____
a. nematocysts c. a hydrostatic skeleton b. a mantle d. a radula
You are worried about your friend Mary, a type 1 diabetic. She is nauseated, short of breath, tired, and confused. She says not to worry because she just has a case of the flu
What diagnostic test should you urge her to perform to make sure that there is nothing more serious going on? A) blood bilirubin B) urinary ketones C) blood pressure D) stress test for the heart
What types of behaviors would you predict would be controlled by quorum sensing?
A. Behaviors effective for single bacteria B. Behaviors effective for groups of bacteria C. All behaviors D. Only virulence behaviors