finish respiration bio form 4 question past year

8/8/2019 Finish Respiration Bio Form 4 Question Past Year

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RESPIRATION

SECTION A

1. The diagram shows an organ which involve in human breathing mechanism

What are A, B, C and D?

2 What are the end products of anaerobic respiration in human muscle tissuesduring vigorous exercise?

A lactic acid and energyB lactic acid and carbon dioxide

C ethanol and carbon dioxide

D carbon dioxide and water

3. Exchange of respiratory gases through the skin is characteristic of

A fish

B reptilesC mammals

D amphibians



4. Green plant absorbs oxygen and release carbon dioxide in low light intensity.

Which of the followings are related to the process occur

A photosynthesis but not respiration

B respiration but not photosynthesis

C photosynthesis at a faster rate than respiration

D respiration at a faster rate than photosynthesis

5. The following information is about controlling breathing in a human body

Which sequence is correct?

A P Q R S

B Q S R P

C R S Q P

D P R S Q



D Grasshopper Belalang

8.Which are correct about aerobic respiration as compared to anaerobic respiration?Yang manakah betul bagi respirasi aerobik berbanding respirasi anaerobik?

IOccurs in cytoplasm

Berlaku dalam sitoplasma

IIComplete oxidation of glucose

Pengoksidaan glukosa lengkap

III

High energy released per glucose moleculeTenaga yang dihasilkan per molekul glukosa tinggi

IV Products of respiration are lactic acids and energy

Hasil respirasi ialah asid laktik dan tenaga

A

I and Il only I dan Il sahaja

C I and IV only I dan IV sahaja

B

Il and III only

lI dan III sahajaD III and IV only III dan IV sahaja

9.Diagram 15 shows human respiratory system. Rajah 15 menunjukkan sistem repirasi manusia

M

IGNORE THE

LABEL OFA,B,C AND D



Diagram 15 Rajah 15

Which of the following is the effect when muscle M fails to contract?Yang manakah antara berikut merupakan kesan apabila otot M gagal mengecut?

A

High air pressure in the lungsTekanan udara di dalam peparu tinggi

B

Large volume of thoracic cavity Isipadu rongga toraks besar

C

Internal intercostals muscles contractOtot interkosta luar mengecut

D

Rib cage remains extended upwards and outwards

Sangkar rusuk kekal mengembang ke atas dan ke luar

10.



11.



12.



SECTION B

1. 7(a) Diagram 7.1 shows how the respiratory gases are transported in thehuman body.

Rajah 7.1 menunjukkan bagaimana gas respirasi diangkut dalam badanmanusia.

Diagram 7.1

(i) Based on Diagram 7.1, explain how the transport of oxygen and

carbon dioxide takes place in the body cells Berdasarkan Rajah 7.1, terangkan bagaimanakah pengangkutanoksigen dan karbon dioksida berlaku di dalam sel-sel badan.

[6 marks](ii) Describe the adaptations of the alveolus for gaseous exchange.

Terangkan penyesuaian pada alveolus yang membolehkannya utuk melakukan proses pertukaran gas.

[4 marks]



2. The breathing mechanism in humans are

(a) What happen in inhalation process?

SECTION C

1(a) Define anaerobic respiration. Explain why human muscle tissues respire an

aerobically during vigorous exercise.(b) Explain the process of gaseous exchange that takes place between

(i) alveoli and blood capillaries which cover the alveoli(ii) body cells and tissues capillary

Inhalation Exhalation



SECTION A

1)D2)A3)D4)C5)C

6)B

7)D

8)B

9)A10)C

11)C

12)A

SECTION B

1-a)(i) Able to explain how the transport of oxygen andcarbon dioxide takes place in the body cellsSample answers:P1: The blood circulatory system transport oxygen from the

alveoli to the body cells.P2: Oxygen combines with the haemoglobin in the red bloodcellsP3: to form oxyhaemoglobin (which is unstable.)P4: Oxygen is carried (in form of oxyhaemoglobin) to thetissues (which have a low partial pressure of oxygen.)P5: The (unstable) oxyhaemoglobin breaks down into oxygenand haemoglobin again.P6: Oxygen (molecules are) transferred to the body cellsP7: Carbon dioxide binds (itself) to the haemoglobinP8: (and is) transported in the form of carbaminohaemoglobin.

P9: Carbon dioxide is (also) transported as dissolved carbondioxide (in the blood plasma.)P10: Most of carbon dioxide is carried as bicarbonate ions(dissolved in the blood plasma.)P11: When the blood carrying carbon dioxide reaches thebody cells, the carbon dioxide diffuses into the blood plasmaand combines with the red blood cells.P12:Carbon dioxide reacts with water to form carbonic acid.P13:Carbonic anhydrase in the red blood cells catalyse theformation of carbonic acid.P14: The carbonic acid then dissociates into a hydrogen ions

and bicarbonate ions.MAXIMUM: 6 marks

(ii) Able to describe the adaptations of the alveolus forgaseous exchangeSample answer:F1: The millions of alveoliP1: provide a large surface area for gaseous exchange.F2: The walls of the alveoli are moistP2: and this allows respiratory gases to dissolve easily tothem.F3 Th ll f th l li thi ( ll thi k)

finish respiration bio form 4 question past year

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