SMK JALAN PASIR PUTEH

MERGEFIELD ARAHAN

SEK. MEN. KEB. LAKI-LAKI METHODIST

PEPERIKSAAN PERTENGAHAN TAHUN 2012

TINGKATAN 5

Kod Kertas

: 4551/1

Penyedia

: En. K. Devendiran Nair

Mata Pelajaran: Biologi

Penyemak

: Cik Chan KM

Masa

: 1 jam

Disahkan KB

: Pn Khoo LL

Bil Calon

: 34

1. Which of the following cells contain the most number of mitochondria?

AOvum

BCheek cell

CRed blood cell

DMuscle cell

2. Which of the following is not true about the nucleus?

AThe nucleus controls all activities of the cell.

BThe nucleus contains the nucleolus.

CThe nucleus is always at the centre of the cell.

DThe nucleus is involved in protein synthesis.

3. The contractile vacuole in Paramecium is a

Acell.

Btissue.

Corganelle.

Dorgan.

4. The cells in the root tip of a plant that are actively dividing are known as

Asomatic cell

Broot cap

Cmeristematic cells

Dxylem

5. Which of the following is involved in the transport of lipids?

ARibosome

BGolgi body

CSmooth endoplasmic reticulum

DMitochondrion

6. What cell has the greatest number of golgi apparatus?

AWhite blood cell

BSecretory cell

CSperm

DNeuron

7. The diagram shows the epidermal cell of an onion and Elodea sp.

Which of the following structures can be found in the cell of Elodea sp but not in the onion cell?

ACell wall

BNucleus

CChloroplast

DVacuole

8. The diagram shows a human red blood cell.

The absence of nucleus in this cell makes it unable to

Adivide.

Bcarry carbon dioxide.

Cmetabolise.

Dabsorb water.

9. The diagram shows the mesophyll cell of a leaf.

The part labelled R contains

Anucleoplasm

Bpure mater

Ccell sap

Dcytoplasm

10. Production of lipids, for example steroids is a major role of the

Alysosome.

Bcentriole.

Cnucleolus.

Dsmooth endoplasmic reticulum.

11. The following structures are found in a multicellular organism.

Arrange them in ascending order to show the correct organisation in an organism.

AX Y Z

BY Z X

CY X Z

DZ X Y

12. The movement of dissolved substances from a region of high concentration to one of low concentration is known as

Adiffusion.

Bhaemolysis.

Cplasmolysis.

Dosmosis.

13. The pressure that is exerted on the inside of the cell wall by the cell sap is known as

Aturgor pressure.

Bcell pressure.

Cosmotic pressure.

Dhydrostatic pressure.

14. Which of the following processes in plants does not require energy?

AGrowth of pollen tube

BMineral salts absorption

CMeiosis

DWater diffusion

15. A root hair of a plant is an example of a

Acell.

Btissue.

Corgan.

Dorganism.

16. A solution that can cause a cell to shrink or undergo plasmolysis is .

Aalkaline solution.

Bacidic solution.

Chypertonic solution.

Dhypotonic solution.

17. If fresh water Paramecium is placed in a hypotonic solution, the contractile vacuole will

Aincrease in size.

Bcontract at a fast rate.

Ccontract slowly.

Dexcrete waste matter.

18. Transport of amino acids across the plasma membrane with the help of carrier proteins is known as .

Aosmosis.

Bfacilitated diffusion.

Csimple diffusion.

Dactive transport.

19. The diagram shows a plant strip immersed in solution X for 30 minutes.

What is solution X?

ASucrose solution 5%.

BSucrose solution 30%.

CSalt solution 1%.

DDistilled water.

20. Which of the following can only occur in living cells?

ASimple diffusion

BFacilitated diffusion

CDialysis

DActive transport

21. Organic compounds are chemical compounds that contain the element.

Ahydrogen.

Bcarbon.

Coxygen.

Dnitrogen.

22. What is the main component of the cell wall of plant cells?

ALignin

BCellulose

CPectic

DChitin

23. Excess amino acids cannot be stored in the body. They are broken down by a process known as

Ahydrolysis.

Breduction.

Cdeamination.

Ddecomposition.

24. Enzymes are

Afats.

Bproteins.

Ccarbohydrates.

Dproteins and carbohydrates.

25. The main food substances which provide energy are

Acarbohydrates and amino acids.

Bcarbohydrates and fats.

Ccarbohydrates and vitamins.

Dcarbohydrates and sugars.

26. In the production of leather goods, what enzyme is used to remove the fur from the skin of animals?

AAmilase

BLipase

CProtease

DCellulase

27. Which of the following is true about intracellular enzymes?

AInvolved in the hydrolysis of food

BProduced by ribosomes

CProduced and functions in the same cell

DFunctions outside of the cell

28. The below graph shows the effect of temperature on the activity of enzyme X.

Enzyme X is most active at

A10oC to 20oC

B20oC to 30oC

C30oC to 40oC

D40oC to 50oC

29. The diagram shows a model of DNA.

What is represented by the units P, Q and R?

PQR

ASugarBasePhosphate

BPhosphateSugarBase

CPhosphateBaseSugar

DBasePhosphateSugar

30. Cytokinesis in plant begins with the formation of .

Acell wall on one side.

Bring from the sides.

Cplasma membrane across it.

Dcell plate at the centre.

31. The term mitosis and meiosis refers to the division of

Athe cell.

Bthe nucleus.

Cthe cytoplasm.

Dthe chromosome.

32. In mitosis and meiosis, the structure which controls the movement of the chromosomes is called

Athe chromosome.

Bthe centromere.

Cthe spindle fibres.

Dthe nuclear membrane.

33. In the first division of meiosis, the chromosome number is

Areduced by half.

Bremained constant.

Cincreased by two times.

Dincreased by three times.

34. The diagram shows an animal cell undergoing meiosis at anaphase II.

How many chromosomes are there in the diploid cell of this animal?

A3

B6

C12

D24

35. Which one of the following factors is not essential for the process of blood clotting?

AFibrinogen.

BCalcium Ions.

CHeparin.

DThromboplastin.

36. The figure shows the cross section of the heart. The vein which carries oxygenated blood is .

A1

B2

C3

D4

37. What is the characteristic of the guard cell that allows it to curve when it is turgid?

APresence of a big vacuole.

BThickness of the cell wall that is not uniform.

CPresence of numerous chloroplasts inside it.

DExists in pairs.

38. Which of the following is true about translocation?

AInvolves the transport of water and minerals from the root to the xylem vessels.

BInvolves the transport of photosynthetic products from the leaves only.

CAssisted by capillary action, root pressure and transpiration pull.

DCan occur in two ways, from top to bottom or from bottom to top.

39. The figure below shows the cross section of a type of blood vessel.The most likely blood vessel as that shown in the figure below is a/an

ACapillary.

BVein.

CArtery.

DVenule.

40. The joint that allows the bone to move in all directions is the .

AHinge joint

BBall and socket joint

CGliding joint

DSliding joint

41. The figure below shows a vertebra in man. What is the function of X and Y?

AProtection of the spinal cord.

BSurface of muscle attachment.

CSurface for the attachment with the ribs.

DSurface for the attachment to the vertebra.

42. The figure below shows the arrangement of the muscles on both sides of the backbone of a fish. What is the function of the muscles?

AAllow the tail fin to move from left to right.

BGive the ability to overcome gravitational force.

CFor stability

DAllow the movement of the pectoral fins.

43. The aquatic stem in the diagram below does not have true xylem tissues because

Athe plant does not need water for photosynthesis.

Bwater is absorbed directly into its leaf.

Cthis is a herbal plant.

Dxylem is not needed for support.

44.

The neurone shown in the diagram above is a myelinated nerve fiber because of the presence of

AV.

BW.

CY.

DZ.

45. The dendrons and dendrites of a neuron are branches that conduct the nervous impulse

Atowards the cell body.

Baway from the cell body.

Cfrom the cell body of another neuron.

Dfaster than the speed of an electric current.

46.

The part of the brain labelled Z controls the center which serves all of the following except

ACardiac inhibition.

BVisual interpretation center.

CRespiratory center.

DVasocontraction center.

47. The microscopic mass of the capillary network enclosed by the Bowman's capsule is called the

Apapilla.

Bglomerulus.

Cefferent arteriole.

Dafferent arteriole.

48. Which one of the following is totally reabsorbed?

AWater.

BUrea.

CGlucose.

DSodium.

49. The mechanism which maintains the physical and chemical characteristics of the body in a balanced and stable state is called

Agrowth.

Bhomeostasis.

Cdevelopment.

Dexcretion.

50. Which of the following hormones in the blood increases immediately after absorption of digested food by the villus.

Ainsulin.

Bglucagon.

Cantidiuretic hormone.

Destrogen.

End of Question Paper110