Compare and contrast the nuclear envelope and the plasma membrane.

a. The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. Both membranes are selectively permeable and have pores.
b. The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. Neither membrane is selectively permeable or has pores.
c. Both membranes consist of two concentric phospholipid bilayers, are selectively permeable, and have pores.
d. Both membranes consist of two concentric phospholipid bilayers and neither is selectively permeable or has pores.


Answer: a. The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. Both membranes are selectively permeable and have pores.

Biology & Microbiology

You might also like to view...

Most land-dwelling invertebrates and all of the amphibians _____

A) are ectothermic organisms with variable body temperatures B) alter their metabolic rates to maintain a constant body temperature of 37 °C C) have a net loss of heat across a moist body surface, even in direct sun D) are endotherms but become thermoconformers when they are in water E) become more active when environmental temperatures drop below 15 °C

Biology & Microbiology

The most plentiful sugar in nature is

a. glucose. b. fructose. c. sucrose. d. lactose. e. glycogen.

Biology & Microbiology

The Lygaeus mode of sex determination is the ________

A) scheme based on single translocations in the X chromosome B) XO/YY scheme C) hermaphroditic scheme D) XY/XX scheme E) XX/XO scheme

Biology & Microbiology

Which factor presents the greatest threat to biodiversity?

A) habitat loss or degradation B) introduction of nonnative species C) overharvesting D) pollution

Biology & Microbiology