Active transport

Question 1

What are the two types of secondary active transport?

Answer 1

Symport and antiport

Question 2

Symport which moves

Answer 2

two transported substances in the same direction

Question 3

Antiport

Answer 3

moves substances in opposite directions

Question 4

Vesicular transport is another type of

Answer 4

active transport

Question 5

Vesicular transport is where large

Answer 5

large macromolecules and fluid are transported

Question 6

What are the two types of active transport?

Answer 6

Exocytosis
Endocytosis

Question 7

What is endocytosis?

Answer 7

Engulfment of materials from environment
-pinocytosis
-phagocytosis

Question 8

Exocytosis is the releasing

Answer 8

material into the environment
-debris/waste
-hormones

Question 9

The passive uptake of a substance by a cell type exhibits saturation, a point where the rate of uptake can not be increased. What type of cellular transport is most likely?

Answer 9

Facilitated transport. Uptake is usually dependent on the number of transport proteins in the cell membrane.

Question 10

The cell membrane proteins also work as receptors. There are several types, what are they?

Answer 10

• contact signaling receptors
  -chemical signaling receptors
  -G protein receptors

Question 11

Contact signaling receptors occur when

Answer 11

cells come into contact with each other

Question 12

Why is contact signaling important?

Answer 12

Important in normal development and immunity

Question 13

Chemical signaling represents the most common group. What are they?

Answer 13

Ligands

Question 14

What are ligands?

Answer 14

The signaling molecule, binds to a membrane receptor. Examples of ligands include neurotransmitters and hormones

Question 15

Different cells can respond differently to the

Answer 15

same ligand
For example- the neurotransmitter, norepinephrine contracts the smooth muscle in the arteries and dilates the smooth muscle in the bronchi