« previous next »

Author Question: Which of the following events suggests there is a change in the egg cell membran (Read 361 times)

curlz

  • Hero Member
  • *****
  • Posts: 538
on: Aug 14, 2013
Which of the following events suggests there is a change in the egg cell membrane after penetration by a sperm?
A) The pollen tube grows away from the egg toward the polar nuclei.
B) CA2+ builds up in the cytoplasm of the egg.
C) The egg cell plasmolyzes.
D) Double fertilization occurs.
E) There is a spike in membrane transport activity.


mydiamond

  • Hero Member
  • *****
  • Posts: 804
Reply #1 on: Aug 22, 2013
I know it's B,

Shine bright :)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Schematic of typical animal cell depicting the various organelles and structures. Schematic of typical animal cell depicting the various organelles and structures.
cell movement cell movement
Sickle-cell hemoglobin Sickle-cell hemoglobin
Ancient Climate Change Ancient Climate Change
Ancient Climate Change: Following the Cretaceous Ancient Climate Change: Following the Cretaceous
A diagram of a generalized human cell A diagram of a generalized human cell
Video: Transmission Across a Synapse

For a complete list of videos, visit our video library