Cellular Transport

Question 1

a semi-permeable membrane barrier that separates the cell from external environment.

Answer 1

plasma membrane

Question 2

helps maintain cellular integrity

Answer 2

plasma membrane’s dynamic and fluid structure

Question 3

enables the cell to work efficiently

Answer 3

cellular integrity

Question 4

function of the plasma membrane

Answer 4

regulates the movement of substances into and out of the cell.

Question 5

ways molecules pass through the cell membrane

Answer 5

-passively
-actively

Question 6

a form of passive transport that moves substances down their concentration gradient.

Answer 6

Diffusion

Question 7

Some solutes diffuse directly through _________ while others require _________ to facilitate the transport.

Answer 7

-lipid bilayer
-membrane proteins

Question 8

the diffusion of water molecules through a semi-permeable membrane.

Answer 8

Osmosis

Question 9

energy-requiring and move substances against their concentration gradient.

Answer 9

Active processes

Question 10

Factors that affect the rate of diffusion

Answer 10

-concentration gradient
-membrane permeability
-temperature
-pressure

Question 11

It is the potential of water molecules to move from a hypotonic solution to a hypertonic solution across a semi-permeable membrane.

Answer 11

Osmotic potential

Question 12

starts to migrate downwards through the sample and the agar slowly changes color and becomes dyed

Answer 12

Methylene blue

Question 13

is a substance or compound added to a system to cause a chemical reaction, or test if one occurs.

Answer 13

Reagents

Question 14

A difference in solute concentration means there is a difference in water concentration and water will move form the region of ______ water concentration to a region of ________ water concentration.

Answer 14

higher, lower

Question 15

the separation of solutes according to their size by diffusion through a semi-permeable membrane.

Answer 15

Dialysis

Question 16

a device used to measure osmotic force.

Answer 16

Osmometer

Question 17

In dialysis, the solute molecules always move from the region of ______________ to the region of ______________.

Answer 17

-higher solute concentration (hypertonic)
-lower solute concentration (hypotonic)

Question 18

When the strips is exposed to glucose it will change color from ________ to _________.

Answer 18

yellow to blue

Question 19

When lugol’s solution is in the presence of starch the solution will change to a __________ color.

Answer 19

dark blue

Question 20

a positive test will turn the yellow end of the strip to ______.

Answer 20

blue

Question 21

the process of moving substances or organic matter inside or
outside of the cell.

Answer 21

Cell transport

Question 22

any external solution that has a low solute concentration and high water concentration compared to body fluids.

Answer 22

Hypotonic solution

Question 23

its solute concentration is higher than that inside the cell, and the solutes cannot cross the membrane.

Answer 23

Hypertonic solution

Question 24

any external solution that has the same solute concentration and water concentration compared to body fluids.

Answer 24

Isotonic solution

Question 25

A chemical solution that was able to pass through the semipermeable membrane.

Answer 25

Lugol’s solution

Question 26

unable to cross the plasma membrane by passive diffusion.

Answer 26

Glucose solution

Question 27

-small enough to pass freely through the membrane.
-diffused into the tube with the starch.

Answer 27

Iodine solution

Question 28

the starch solution only
changed color on the Lugol’s solution because of the presence of the _______ in the solution.

Answer 28

starch

Question 29

The dialysis tube solution after soaking in distilled water, shows both positive results due to
the fact that it contains both ________ and ________ in its solution.

Answer 29

Glucose, Starch

Question 30

indicates a color change

Answer 30

Positive

Question 31

indicates no color change on a certain chemical.

Answer 31

Negative

Question 32

glucose solution in glucose test tape

Answer 32

Positive (+)

Question 33

Glucose solution in Lugol’s solution

Answer 33

Negative (-)

Question 33

Starch solution in Glucose test tape

Answer 33

Negative

Question 34

Starch solution in Lugol’s solution

Answer 34

Positive (+)

Question 35

Dialysis tube solution after soaking in
distilled water in Glucose test tape

Answer 35

Positive (+)

Question 36

Dialysis tube solution after soaking in
distilled water in Lugol’s solution

Answer 36

Positive (+)

Question 37

Beaker of distilled water before insertion of
dialysis tube in Glucose test tape

Answer 37

Negative (-)

Question 38

Beaker of distilled water before insertion of
dialysis tube in Lugol’s solution

Answer 38

Negative (-)

Question 39

Beaker of distilled water after insertion of
dialysis tube in Glucose test tape

Answer 39

Positive (+)

Question 40

Beaker of distilled water after insertion of
dialysis tube in Lugol’s solution

Answer 40

Negative (-)

Question 41

in hypertonic solution with 10% NaCl, the appearance of the egg _______.

Answer 41

Shrink

Question 42

The isotonic solution with
0.9% NaCl content results in ________ changes occurring
to the egg.

Answer 42

non-visible

Question 43

the hypotonic solution with
pure distilled water, results in a
________ or _________ naked egg

Answer 43

Bulkier or Swollen