The plasma membrane _____
a. controls the contents of the cell
b. is composed mostly of cholesterol
c. is permeable to ions and polar molecules
d. is free of proteins
e. is rigid and impermeable
ANSWER: a
You might also like to view...
Which of the following statements about honeybee communication is not correct?
A. The hive is like a giant organism, fixed in location but sending out workers in all directions to forage. B. Returning foragers pass samples of collected food to other workers that surround her upon return. C. The workers use olfactory cues to go out and find food once given a sample by returning foragers. D. Returning foragers use the waggle dance to provide information about the direction of the food source in relationship to the sun. E. The waggle dance can be in direct line with the sun or at various angles to the left or right of the direct line of the sun.
Heterozygotes and dominant homozygotes always have the same phenotype. Indicate whether the statement is true or false
The decrease of carbon-12 in a fossil indicates the age of that fossil
__________________ Indicate whether the statement is true or false.
Under what conditions does one expect a 1:1:1:1 ratio?
What will be an ideal response?