Transport Mechanisms 2

Question 1

Allow the cell to regulate what solutes enter/exit the cell and the quantity being transported.

Answer 1

TRANSPORT MECHANISM

Question 2

Kinds of TRANSPORT MECHANISMs:

Answer 2

Passive transport
Active transport
Bulk transport

Question 3

Passive transport examples

Answer 3

Diffusions
Osmosis

Question 4

This type of transport relies on the concentration gradient of solutes to move them across the plasma membrane.

Answer 4

Passive transport

Question 5

No energy will be spent to move the solutes across.

Answer 5

Passive transport

Question 6

The movement of ions and molecule from high concentration to low concentration is know as

Answer 6

Simple diffusion / diffusion

Question 7

Don’t rely / use / go through the protein channel

Answer 7

Simple diffusion / diffusion

Question 8

is the natural tendency for molecules to move constantly.

Answer 8

Diffusion

Question 9

Their movement is random and is due to the energy found in the individual molecules.

Answer 9

Diffusion

Question 10

Occurs when the materials on one side of the membrane have a different concentration than the materials on the other side.

Answer 10

Net diffusion

Question 11

Movement of particles from high to low concentration

Answer 11

Diffusion

Question 12

Ion channels inside aid the charged ions to move across.

Answer 12

Facilitated diffusion

Question 13

Proteins manage and assist the movemement of solutes across the membrane.

Answer 13

Facilitated diffusion

Question 14

Assisting of larger macromolecules

Answer 14

Facilitated diffusion

Question 15

Two types of facilitated diffusion

Answer 15

Channel protein
Carrier protein

Question 16

Proteins provide a small hyrophilic passageway for specific molecules and ions.

Answer 16

Channel protein

Question 17

Some channels can remain open most of the time (leak channels), while others can be opened or closed (gate channels) depending on the presence of a stimulus.

Answer 17

Channel protein

Question 18

Some channels can remain open most of the time (————), while others can be opened or closed (————) depending on the presence of a stimulus.

Answer 18

leak channels
gate channels

Question 19

Require the molecule being transported to attach itself to the ———. The protein will then change its shape (conformational change) to shuttle the molecule across the membrane.

Answer 19

Carrier protein

Question 20

Require the molecule being transported to attach itself to the carrier protein. The protein will then change its shape (—————) to shuttle the molecule across the membrane.

Answer 20

conformational change