Cell Transport

Question 1

Small molecules move in and out of cells via

Answer 1

Diffusion

Question 2

Movement of molecules against a concentration gradient requiring the help of a transporter and the expenditure of ATP

Answer 2

Active Transport

Question 3

Allows certain substances to pass through while prohibiting others

Answer 3

Selectively permeable

Question 4

These bulk, solid substances enter or leave the cell only if they are enclosed by vesicles

Answer 4

Endocytosis

Question 5

These liquid substances or fluid droplets enter or leave the cell only if they are enclosed by vesicles

Answer 5

Pinocytosis

Question 6

With water, diffusion across the membrane occurs by a process termed as?

Answer 6

Osmosis

Question 7

Higher water concentration, Less negative or higher osmotic potential, and lower solute concentration

Answer 7

Hypotonic

Question 8

Lower water concentration, More negative or lower osmotic potential, and higher solute concentration

Answer 8

Hypertonic

Question 9

This is the measure of the tendency of a solution to gain water compared with pure water in an ideal system.

Answer 9

Osmotic Potential

Question 10

The negative of osmotic potential. It is the hydrostatic pressure needed to decrease the tendency of water from entering a solution in an ideal system.

Answer 10

Osmotic Pressure

Question 11

This solution has a stronger tendecy to gain water with respect to another solution that gains water to a lesser extent.

Answer 11

Hypertonic solution

Question 12

This solution has a lower tendency to gain water with respect to the first solution

Answer 12

Hypotonic solution

Question 13

If two solutions have exactly the same tendency to gain water

Answer 13

Isotonic Solution

Question 14

In humans, this is an active mechanism in the kidneys for blood pressure regulation, in exchanges at capillary beds, and other water-related processes.

Answer 14

Osmosis

Question 15

The movement of molecules from a region of greater concentration to lower concentration

Answer 15

Diffusion

Question 16

The substance that is dissolved in a solution

Answer 16

Solute

Question 17

Part of the cell that regulates the flow of substances

Answer 17

Plasma Membrane

Question 18

Cell engulfing is an example of

Answer 18

Phagocytosis

Question 19

In this solution, cells appear normal

Answer 19

Isotonic

Question 20

Cells appear shriveled or shrinking

Answer 20

Hypertonic solution

Question 21

Cells swell and eventually burst

Answer 21

Hypotonic solution

Question 22

protein free plasma moves across capillary walls

Answer 22

Filtration

Question 23

No cell energy is needed. Molecules move down a concentration gradient.

Answer 23

Simple diffusion

Question 24

A type of endocytosis in which a cell engulfs large particles or whole cells

Answer 24

Phagocytosis

Question 25

Extracellular molecules bind with receptor proteins on the plasma membrane, causing it to invaginate and draw molecules into the cell

Answer 25

Receptor-mediated endocytosis

Question 26

Bulk movement of a material out of a cell. Reverse of endocytosis

Answer 26

Exocytosis

Question 27

Carrier transport proteins in a plasma membrane temporarily bind with molecules and help them pass across the membrane.

Answer 27

Facilitated diffusion