f4modul 2 chapter 3- naskhah pelajar

8/13/2019 f4modul 2 Chapter 3- Naskhah Pelajar

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MOVEMENT OF SUBSTANCES ACROSS

THE PLASMA MEMBRANE

1 Osmosis is the diffusion of water molecules from a region of

A higher water concentration through a semi permeable membrane.B lower water concentration through a semi permeable membrane.

C higher water concentration through a non permeable membrane.D lower water concentration through a non permeable membrane.

2 The figure shows a movement of ions across the plasma membrane. Name theprocess

1

KEMENTERIAN PELAJARAN MALAYSIA



C

D

A

B

A flaccidB crenationC active transportD passive transport

A red blood cell in h!potonic solution will burst. This phenomena is "nown as

A crenationB flaccidC haemol!sisD plasmol!sis

# $lasmol!sis refers to

A movement of water out of cellB movement of water into cellC movement of o%!gen out of cell

D movement of o%!gen into cell&

' (!pertonic solution is

A a solution without solutesB a solution in which has the same ions of solute as another solution.C a solution in which less ions of solutes is less than another solution.D a solution in which the ions of solute is higher than another solution.

) *igure shows a part of a plasma membrane. +hich component is the h!drophilic head of

phospholipids ,

2



- A solution has higher concentration compare to the cell sap. This solution is

A h!potonicB h!pertonicC sotonicD turgid

/ +hich of the following is not a component of cell membranes,

A $roteinB 0ipidC Nucleic acidD Carboh!drate

Cell membrane consists mainl! of

A carboh!drate bila!er and protein

B protein bila!er and phospholipids C lipid bila!er and proteins D protein bila!er and carboh!drate

1 The phospholipid molecule of the plasma membrane has

A a h!drophilic head and two h!drophobic tailsB a h!drophobic head and two h!drophilic tailsC a h!drophilic head and a h!drophobic tails

D a h!drophobic head and a h!drophilic tails

11 +hich of the following components can move across plasma membrane b! simplediffusion,

A ions B 3lucose

C 0ipid soluble molecules D +ater soluble molecules

3



12 *igure shows a red blood cell after has been immerse in a h!pertonic solution.

+hich of the statement e%plain the phenomena,

A water molecules move out from the red blood cell

B water molecule move into the red blood cellC glucose molecule move out from the red blood cellD glucose molecule move into the red blood cell

1 +hich of the following statement is true about plasma membrane,

A 4electivel! permeable.B 0ipid bila!er and protein molecules are static.

C Allows onl! water and glucose molecules to pass through.D The fluid mosaic model is made up a bila!er with amino acids scattered in it.

1# +hich of the following processes involves active transport,

A Absorption a solution in which has the same iones of solute as anothersolution of ions b! root hair cells of a plant.

B Absorption of digested food in the villus.C Absorption of water b! root hair cells of a plant.

D 3as e%change between the alveoli and blood capillaries.

4



Epidermis

1' *igure shows a strip of a mustard green after it has been immersed in solution 5.

+hich of the following is solution 5,

A .16 salt solution

B Distilled water C 1.'6 sucrose solution D 6 sucrose solution

1) *igure shows the vis"ing tube which filled with distilled water and soa"ed into salt solution.

+hat is the observation after 2 minutes,

A 7is"ing tube will swell. B No change occurred.

C 7is"ing tube will shrun". D 7is"ing tube will burst

5

Beaker

Salt Solution

Distilled water Visking

tube



length of the strips

1

2

3

Time

1- The figure shows three ) mm strips of potato were immersed into three differentt!pes of solution.

After one hour the length of the strips is recorded and the graph is plotted as below.

+hich of the following shows the correct result,

Distilled water '6 sucrosesolution

26 sucrosesolution

A 1 2

B 1 2

C 2 1

6

Beaker 1 Beaker 2 Beaker 3



2 *igure shows the structure of a plant cell before and after it has been immersed in solution$.

+hat is solution $ and the process that ta"es place in the plant cell,

21 (ow the water molecules can move into a cell when the cell is immersed in a

distilled water, ===================================================================

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22 3ive two differences between the passive transport and active transport.

4olution $ $rocess

A Distilled water $lasmol!sis

B Distilled water Deplasmol!sis

C 16 sucrose solution $lasmol!sis

D 1'6 sucrose solution (aemol!sis

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2 $redict what will happen to red blood cell if it is immersed into h!pertonic solution. 3ive the reason.

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2# Describe wh! the plant become wilt if the farmer use e%cessive fertili:er.

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2' 9%plain how we can preserve fish for several wee"s. >se the "nowledge that !oulearns in this chapter.

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f4modul 2 chapter 3- naskhah pelajar

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