This topic contains a solution. Click here to go to the answer

Author Question: Which mechanism enables substances to move through the cell membrane from a region of higher ... (Read 73 times)

RODY.ELKHALIL

  • Hero Member
  • *****
  • Posts: 591
Which mechanism enables substances to move through the cell membrane from a region of higher concentration to a region of lower concentration without any energy expenditure?
 a. Equilibrium
  b. Vesicular transport
  c. Exocytosis
  d. Simple diffusion

Question 2

The three main types of passive transport mechanisms for control of movement of substances into and out of cells are simple diffusion, facilitated diffusion, and _____.
 a. active transport
  b. osmosis
  c. exocytosis
  d. endocytosis



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sophiapenny

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

d

Answer to Question 2

b





 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

For a complete list of videos, visit our video library