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 72 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?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

For a complete list of videos, visit our video library