Osmosis And Diffusion

Question 1

Selectively permeable

Answer 1

Only allow certain molecules across

Question 2

Active transport

Answer 2

Requires energy

Question 3

Passive transport

Answer 3

NO energy required; occurs only if the membrane is permeable to the substance

Question 4

diffusion

Answer 4

The movement of molecules from areas of high concentration to areas of low concentration

Question 5

Osmosis

Answer 5

Process where water moves across a membrane from high water content (low solute) to low water content (high solute)

Question 6

Isotonic

Answer 6

Normal; equal amounts of the substance (molecules) are found on each side of the membrane

Question 7

Hypertonic

Answer 7

Cell shrinks; The solution on one side of the membrane contains a greater concentration of molecules compared to the other.

Question 8

HypOtonic

Answer 8

Cells swell; The solution one side of the membrane contains a lower concentration of molecules compared to the other

Question 9

Hemolysis( hypOtonic solution)

Answer 9

“Burst”; The rupture or destruction of red blood cells ( Occurs in animal cells)

Question 10

Crenation (hypertonic solution)

Answer 10

Shrinking of the cell (occurs in animal cells)

Question 11

If starch is present in a solution what color will it turn?

Answer 11

Black

Question 12

What is an indicator for starch?

Answer 12

Iodine

Question 13

Plasmolysis (hypertonic solution)

Answer 13

Plants are placed in a solution containing a high concentration of salt, the water molecules leave the cells , causing them to shrink

Question 14

Turgor pressure (hypotonic solution)

Answer 14

The pressure of water pushing the plasma membrane against the cell wall of a plant

Question 15

Osmotic pressure

Answer 15

The movement of water across a semi permeable membrane

Question 16

If the number of molecules on one side of the membrane contains a greater concentration compared to the other and they will move along a _________ until equal

Answer 16

Concentration gradient

Question 17

A solution which contains a greater amount of solute outside the cell is?

Answer 17

Hypertonic

Question 18

A solution which contains a lesser amount of solute outside the cell is?

Answer 18

HypOtonic

Question 19

A plant cell placed in a hypertonic solution is?

Answer 19

Plasmolysis

Question 20

An animal cell placed in a hypertonic solution is?

Answer 20

Crenation

Question 21

A plant cell placed in distilled water is?

Answer 21

Turgor pressure

Question 22

An animal cell placed in a hypOtonic solution is?

Answer 22

Hemolysis