BIOLOGI T4 KSSM Bab 3

The structure labelled X in Diagram 1 is known as a

Struktur berlabel X di dalam Rajah 1 adalah

Diagram 1

Rajah 1

• cholesterol

  kolesterol

• pore protein

  protein liang

• phospholipid

  fosfolipid

• carrier protein

  protein pembawa

Which of the following terms explain a process of water movement from a

hypotonic solution to a hypertonic solution through a semi-permeable

membrane?

Manakah antara istilah berikut yang menerangkan proses pergerakan air

daripada larutan hipotonik kepada larutan hipertonik melalui selaput separa

telap?

• Osmosis

  Osmosis

• Difusion

  Resapan

• Difusion

  Resapan

• Passive transport

  Pengangkutan pasif

Diagram 2 shows the structure of a plasma membrane.

Rajah 2 menunjukkan struktur membran plasma.

Which of the following molecules can pass through P?

Manakah antara molekul berikut dapat merentasi P?

• Amino Acid

  Amino Asid

• Water

  Air

• Glycogen

  Glikogen

• Starch

  Kanji

Diagram 3 shows an animal cell.

Rajah 3 menunjukkan sel haiwan.

Which of the following statements is true about structure X?

Antara berikut, yang manakah benar tentang struktur X?

• It allows only water to pass through it

  Ia membenarkan hanya air melaluinya

• It does not allow any substances to pass through it

  Ia tidak membenarkan mana-mana bahan melaluinya

• It allows only selected substances to pass through it

  Ia hanya membenarkan bahan-bahan terpilih sahaja melaluinya

• It allows all substances to pass through it

  Ia membenarkan semua bahan melaluinya

Which of the following factors affect the movement of molecules across the plasma membrane ?

Manakah antara faktor-faktor berikut mempengaruhi pergerakaan bahan merentasi membran plasma?

I the solubility of the molecules in lipid

kelarutan molekul di dalam lipid

II the shape of molecules

bentuk molekul

III the polarity of the molecules

kekutuban molekul

IV the size of molecules

saiz molekul

• I and III only

  I dan III sahaja

• III and IV

  III dan IV

• I, III and IV

  I, III dan IV

• I and II

  I dan II

The diagram shows diffusion in potato cells.

Rajah menunjukkan resapan dalam sel kentang.

x Y

• Distilled waterAir suling10% sucrose solutionLarutan sukrosa 10%

• Distilled waterAir suling Distilled waterAir suling

• 10% sucrose solutionLarutan sukrosa 10% Distilled waterAir suling

• 10% sucrose solutionLarutan sukrosa 10% 10% sucrose solutionLarutan sukrosa 10%

Diagram 4 shows a condition of stomata.

Rajah 4 menunjukkan suatu keadaan stomata..

Which of the following may cause the condition in Diagram 4?

Yang manakah antara berikut menyebabkan keadaan dalam Rajah 4?

• High light intensity

  Keamatan cahaya yang tinggi

• Water enter the guard cells

  Air masuk ke dalam sel pengawal

• Potassium ion leaves the guard cells

  Ion kalium meninggalkan sel pengawal

• Potassium ion leaves the guard cells

  Ion kalium meninggalkan sel pengawal

The graph shows the result of an experiment to determine the concentration of the cell sap of potato tissues.

Graf menunjukkan keputusan satu eksperimen untuk menentukan kepekatan sap sel ubi kentang.

At which point A, B, C and D is the concentration of sucrose solution hypertonic to the cell sap of potato tissues?

Yang manakah antara titik A, B, C dan D merupakan kepekatan larutan sukrosa yang hipertonik terhadap sap sel tisu ubi kentang?

• A

• B

• C

• D

Diagram 6 is an experiment to show the movement of water through a membrane.

Rajah 6 adalah eksperimen yang menunjukkan pergerakan molekul merentasi

membran.

At the end of the experiment, the water level in the glass tube will rise because

Di akhir eksperimen, paras air di dalam tiub kaca akan meningkat kerana

• glucose solution flowed out of the visking tubing.

  larutan glukosa keluar daripada tiub visking

• water diffused into the visking tubing.

  air meresap ke dalam tiub visking

• air goes into the visking tubing.

  udara masuk ke dalam tiub visking

• the atmospheric pressure causes the water level to rise.

  tekanan udara menyebabkan paras air meningkat

A student soaked an egg in a saturated salt solution. A few days later, he found

that the egg tasted salty. Which of the following statements explain this

observation?

Seorang pelajar merendam sebiji telur di dalam larutan garam. Selepas

beberapa hari didapati telur itu berasa masin. Manakah antara kenyataan

berikut menerangkan pemerhatian ini?

IThe eggshell is permeable to salt solution.Kulit telur adalah telap terhadap larutan garam.

IISalt particles enter the egg by active transport.Partikel garam memasuki telur secara pengangkutan aktif.

IIIThe saturated salt solution is hypertonic to the content of the eggLarutan garam tepu adalah hipertonik terhadap kandungan telur.

IVSalt particles can diffuse through the eggshell and plasma membrane.Partikel garam boleh meresap melalui kulit telur dan membran plasma

• I and III

  I dan III

• I and IV

  I dan IV

• II, III and IV

  II, III and IV

• I, III and IV

  I, III and IV