BIOLOGY 4551

• PAPER 1 : 50 QUESTIONS 1 ¼ HOURS( 50 MARKS)

• PAPER 2 : 5 STRUCTURES 4 ESSAY(100 MARKS)

• PAPER 3 : 1 STRUCTURE 1 ESSAY( 50 MARKS)

SPM : 14 NOV 2011

108 hari lagi

~ 3 bulan 18 hari ~Sudahkah anda bersedia??

Usaha + Doa : Kejayaan, Insya Allah!!

HOW TO SCORE A ?

• PAPER 1 : 40 ABOVE

• PAPER 2 : 80 ABOVE

• PAPER 3 : 40 ABOVE

TOTAL MARKS = 40 + 80 + 40 = 80 (A) 2

PAPER 3

• QUESTION 2 ( 17 m)• The rate of photosynthesis is influenced by different environment factors. Based on the above situation, plan a laboratory experiment to determine the effect of light

intensity on the rate of photosynthesis. The planning of your experiment must include the following aspects:

• Statement of identified problem ( 3m)• Objective of study• Variables (3m)• Statement of hypothesis (3m)• List of materials and apparatus (3m)• Experimental procedure (3m)• Presentation of data (2 m)• Conclusion

KESALAHAN TEKNIK MENJAWAB SOALAN

• SPM 2010• No. 1(b)• Student’s answer: The function of RER is to transport protein to Golgi

apparatus and the function of Golgi apparatus is to sort, modify and pack protein. So without RER and Golgi apparatus, extracellular enzyme cannot be synthesized.

• • Correct answer: (1)( No production of extracellular enzyme)

because( without S protein cannot be transport to Golgi apparatus) through transport vesicles.(3)Without Golgi apparatus, the protein cannot be modified) to form extracellular enzyme. The(4)( protein cannot be sorted), (cannot be packaged) into secretory vesicle.(5) No enzyme will be released out of the plasma membrane.

• Note: protein -enzyme (x)

• No.1 (c)• Student’s answer: Because sperm need to swim

toward the fallopian tube during fertilisation.• • Correct answer: (1)( Mitochondria generate

energy/site of cellular respiration)(2) (Sperm need more energy to swim toward ………………..)

• No.2(c)• Student’s answer: The cell shrink. Water move

out of the cell.• • Correct answer: (1)( The cell is flaccid/

plasmolysed). (2)(The solution is hypertonic to the cell sap) so(3)(water diffuse out of the cell)(4)( via osmosis).(5)( The plasma mrmbrane pulls away from cell wall//Cytoplasm/ vacuole shrink)

• No.2(d) • Student’s answer: A The food can last longer./

D Can cause diabetes/ not good for health• • Correct answer: A The method inhibit the growth of

microorganism// less spoilage of food • and can keep longer/last longer.• D - The food loss nutrient content• Change in natural colour of food• Change in taste of food

• No.3(b) • Student’s answer: Nuclear membrane

disintegrates and spindle fibres start to form.• Correct answer: (1)(Homologous chromosomes

come together)/Pairing of homologous chromosome(2)( to form bivalent) through a process called (1)(synapsis).(3)Crossing over occur between homologous chromosome.

• No. 3(c)• Student’s answer: Sperm combine with ovum

to form zygote.• Correct answer: (1) Sperm and ovum are

haploid. (2) Sperm fused with ovum to form diploid zygote.

• No. 4(e)• Student’s answer: Enzyme denatured at high

temperature. Active site of enzyme is broken down.

• • Correct answer: (1) At high temperature, 65°C

protein denatured. (2)Structure of protein change/broken and the(3) shape of change that cause silk crumples in hot water.

• No.5(c) 1. Triceps muscle is thinner and longer than biceps 2. At least 3 tendons

• No. 5(d) (1)(Difficulty in movement/walking) ,(2)( pain at joint) due

to (3)( excessive wear and tear of X). This old person experience(4)( arthritis.)

• • No. 5 (e) (1)To increase temperature of mucles (2) enabling more

efficient use of energy/increase the production of ATP(3) and increase heart to supply more oxygen. This activity is to prevent injuries to muscles / muscles cramp//allow muscles to be stretch easily.

• ESSAY• Tulis dengan lengkap.• Markah tidak akan dipotong jika jawapan tidak ada kaitan

dengan soalan• Pemeriksa akan mencari isi-isi yang berkaitan dengan soalan• Soalan compare mesti merangkumi similarities and

differences.Asingkan jawapan bagi similarities dan differences. Jawapan bagi differences lebih mudah dapat markah jika ditulis dalam table.

• Jika soalan berdasarkan rajah berasingan, jawapan mestilah berasingan.Contoh 9(b).

• Contoh: (6)(a)(ii)• When the intake of water is too little, blood osmotic pressure increase.• Osmoreceptor in hypothalamus detects the change• And produces impulse• Which stimulates pituitary gland• To release more ADH• ADH increase the permeability• Of the collecting duct/ distal tubule• More water is reabsorbeb into blood stream• Blood osmotic pressure decrease back to normal• Urine produced is less /more concentrated

FOCUS :1. Cell structure and cell organisation• Draw cell structure• Organelles and their functions ( Refer Q: 9)

PLASMA MEMBRANE

2. Movement of substances across the plasma membrane(Q:3)

• Structure of plasma membrane• Osmosis • Faccilitated diffusion• Active transport

Osmosis :Q3&4

Solution :-• Hypotonic• Hypertonic• Isotonic

Movement of Water :-• Diffuse In• Diffuse Out

Condition of Cell :-• Plant Cell (1) flaccid >> plasmolysis

(2) turgid• Animal Cell (1) Haemolysis

(2) Crenation

Chemical composition of the cellSPM Q1

EnzymesSynthesis of extracellular enzymeLock and key hypothesis

Q2 &Spm Q:3

4. Cell division • Mitosis and meiosis• Arrangement of stages

in mitosis and meiosis• Chromosome behaviour

Q:8

5. Nutrition • Digestion, absorption and assimilation• Eating habits (SPM 9(b)• Photosynthesis

WHAT ARE THE CLASSES OF INVOLVE IN DIGESTION?*Carbohydrates* Proteins* Lipids

PARTS OF ALIMENTARY CANAL THAT INVOLVE IN DIGESTION

amylase• Mouth : Starch +water -----------> Maltose

pepsin

• Stomach : Protein + water --------> Polypeptides

Milk protein (Caseinogen) ---rennin-> Casein

DIGESTION :SPM 9(a)• Duodenum : Starch

Polypeptides + water -trypsin--> peptides

Lipid droplets + water - lipase---> fatty acid + glycerol

• Ileum : Maltose Sucrose LactosePeptides + water -peptidase-->amino acid

Lipid droplets + water - lipase---> fatty acid + glycerol

Soalan 9• (c) (i) Enzyme / protein

(ii) To pack the product that has been modified by the Golgi body

• To release the substances out of the cell to be secreted

• (d) Mitochondria as the main site where ATP / energy is generated through the enzyme action // glucose oxidisation.

• Sperm cell need more energy to swim actively to fertilize the ovum in the fallopian tube.

SOALAN 3

(a)(ii)• Process at R: Active transport• P1: The movement of particles/molecules/ions againts the

concentration gradient across the plasma membrane/ from the lower concentration of particles to the higher concentration of particles

• P2: The process requires energy provided by ATP(b) P allows small water soluble molecules, lipid soluble

molecule and gaseous to move across the plasma membrane while Q has specific shape and charge that only allow specific ions/molecule to pass through.

SOALAN 3(c) F : Solution outside the cell is hypotonic to cell sap.• E1 :Water molecules diffuse into the cell (causing it to swell up and

burst.• E2 :The plasma membrane is too thin to with stand the osmotic

pressure that develops within the cell.• (d) F : The soil solution become hypertonic than the cell sap of the

roots• E1 : water diffuses out from the cell sap into the soil by osmosis• E2 : the cell are plasmolysed

Soalan 4

(c) In (b)(i) distilled water is hypotonic to the plant sap. Water molecules diffuse into the plant cell via osmosis thus cause the cell becomes turgid.

• • In (b)(ii) sucrose solution is hypertonic compare to

the plant sap. Water molecules will diffuse out from the plant cell to the solution outside causes the cell become plasmolysed

SOALAN 8

• F1 : no / less secretion lipase• E1 : no / incomplete lipid digestion• F2 : no / less secretion amylase• E2 : no / less starch digestion• F3 : no / less secretion trypsin• E3 : no / less protein digestion

SOALAN 8

(d)(ii)• 1. Avoid / Reduce the intake of oily food• 2. Avoid / Reduce the intake of food that high

carbohydrates /sugar• 3. Reduce the intake of food which high protein• 4. injections of insulin• 5. pancreas implantation

Sekian. Terima Kasih ~