Form 4 Biology Test 4

8/11/2019 Form 4 Biology Test 4

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FORM 4 BIOLOGY

TEST 4

PAPER 1 (1 HOUR 15 MINUTES)

There are 50 questions in this paper. Answer all the questions provided.

1. Which of the following are the consequences of lacking selenium in our diet?

I. Enlargement of thyroid gland

II. Muscle pains

III. Growth retarded

IV. Deterioration of heart muscles

A. I and III only

B. I and IV only

C. II and III only

D. II and IV only

E. III and IV only

2. What are the end products of anaerobic respiration in human muscle tissues

during vigorous exercise?

A. Lactic acid and carbon dioxide

B. Lactic acid and energy

C. Lactic acid and water

D. Ethanol and carbon dioxide

E. Carbon dioxide and water

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

A. Fish

B. Reptiles

C. Amphibians

D. Insects

E. Mammals

4. Air is inhaled whenI. External intercostal muscles relax

II. Rib cage moves upwards and outwards

III. Diaphragm muscle relax

IV. Pressure In thoracic cavity decreases

A. I and II only

B. II and III only

C. II and IV only

D. I, II and IV only

E. I, III, IV only


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5. The following results were obtained from a J-tube experiment to determine the

oxygen and carbon dioxide content of an air sample.

Length of air column 10.0cm

Length of air column after treatment with potassiumhydroxide

9.6cm

Length of air column after treatment with potassiumpyrogallate

8.0cm

The percentage composition of oxygen and carbon dioxide in the air sample is

Oxygen Carbon dioxide

A 16% 4%

B 4% 16%

C 20% 4%

D 4% 20%

E 21% 0.03%

6. In plants, ATP is synthesized viaA. Respiration only

B. Photosynthesis and respiration only

C. Respiration and transpiration only

D. Photosynthesis and transpiration only

E. Photosynthesis, respiration and transpiration

7. Erythrocytes able to transport

A. Carbon dioxide

B. OxygenC. Carbon monoxide

D. Carbon dioxide and oxygen

E. Carbon dioxide, carbon monoxide and oxygen

8. In the human blood circulation system, majority of carbon dioxide is

transported in the plasma as

A. Carbaminohaemoglobin

B. Carboxyhaemoglobin

C. Bicarbonate ions

D. Haemoglobinic acid

E. Gaseous carbon dioxide

9. Which of the following is NOTconsidered as microorganisms?

A. Insect

B. Protozoa

C. Algae

D. Bacteria

E. Virus


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10. Which of the following is NOTa disease that is caused by microorganisms?

A. Malaria

B. Dengue

C. Cholera

D. SARSE. Anemia

11. According to Linnaeus binomial nomenclature system, the correct way of

writing the scientific name is

A. Homo sapiens

B. Homo sapiens

C. Homo sapiens

D. Homo Sapiens

E. HOMO SAPIENS

12. Which of the following is WRONGLY MATCHED?

Organisms The study called

A Animal Zoology

B Plant Botany

C Insect Entomology

D Fungi Phycology

E Microorganisms Microbiology

13. A student conducted an experiment to estimate the population size of rats in a

paddy field. The student caught and marked 70 rats on the first night. A week

later, the student caught 60 rats. Out of the 60 rats, 10 were marked. What is

the population size of the rats in the paddy field?

A. 210

B. 300

C. 420

D. 630

E. 840

14. Which vitamins are synthesized by the symbiotic bacteria found in humancolon?

A. Vitamin A

B. Vitamin B3

C. Vitamin B9

D. Vitamin B12

E. Vitamin E


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15. Gaseous exchange between plant cells and environment occurs mainly

through

A. Epidermis

B. Lenticels

C. XylemD. Phloem

E. Meristemic

16. Tapeworms is a/an

A. Endoparasite

B. Ectoparasite

C. Saprophyte

D. Predator

E. Epiphyte

17. The correct sequence for the process of succession is

A. Pioneer speciesDominant speciesSuccessor speciesClimax

community

B. Pioneer speciesDominant speciesClimax community

Successor species

C. Pioneer speciesSuccessor speciesDominant speciesClimax

community

D. Pioneer speciesSuccessor speciesClimax community

Dominant speciesE. Climax communityPioneer speciesSuccessor species

Dominant species

18. Peripheral chemoreceptors can be found in

A. Respiratory center

B. Hypothalamus

C. Carotid arteries

D. Sinoatrial node

E. Cerebellum

19. The interaction between Paramecium aureliaand Paramecium caudatumis

known as

A. Prey-predator

B. Commensalisms

C. Mutualisms

D. Parasitisms

E. Competition


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20. Prop roots are breathing roots that will be found in

A. Bruguierasp.

B. Avicenniasp.

C. Sonneratiasp.

D. Rhizophorasp.E. Nypa fruiticans

21. Figure below shows the energy flow in an ecosystem.

How much energy is received by the secondary consumers in food chain if the

producers generate 15,000 kJ of energy?

A. 15 kJ

B. 150 kJC. 1500 kJ

D. 13,500 kJ

E. 15,000 kJ

22. The science that deal with identifying, describing and naming organisms is

known as

A. Genetics

B. Anatomy

C. Ecology

D. Taxonomy

E. Biostatistics

23. Which of the following is not classified under the kingdom animalia?

A. Insects

B. Human

C. Coral

D. Sea cucumber

E. Yeast

24. Which of the following regarding malaria is true?

Vector Pathogen

A Aedessp. Plasmodiumsp.

B Aedessp. Dengue virus

C Anophelessp. Plasmodiumsp.

D Anophelessp. Chikungunya virus

E Culexsp. Plasmodiumsp.

ProducersPrimary

consumers

Secondary

consumers


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25.Plasmodiumsp. is a

A. Protozoa

B. Bacteria

C. Virus

D. AlgaeE. Fungi

26. Bacillus CalmetteGurin or BCG, is a type of

A. Antibiotics

B. Vaccines

C. Antiseptics

D. Disinfectants

E. Pharmaceutics

27. Which of the following are disinfectants?

I. Acriflavin

II. Iodine

III. Phenol

IV. Formaldehyde

A. I and II

B. I and IV

C. II and III

D. II and IV

E. III and IV

28. Which of the following is an antibiotic?

A. Streptomycin

B. Niacin

C. Riboflavin

D. Cobalamin

E. Carbolic acid

29. Coccus, bacillus, spirillum and vibrio refer to different shape of

A. Viruses

B. Fungi

C. Bacteria

D. Protozoa

E. Algae


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30. Which of the following groups of microorganism is capable of making its own

food?

A. Viruses

B. Fungi

C. NematodesD. Algae

E. No microorganisms capable of making its own food

31. AIDS is a disease that is caused by

A. Protozoa

B. Bacteria

C. Viruses

D. Fungi

E. Nematode

32. The quadrat sampling method can be used to determine

I. The density of plant species

II. The density of animal species

III. The percentage coverage of plant species

A. I and II only

B. I and III only

C. II and III only

D. I, II and III only

E. All are false

Based on the data given below, answer question 33 and 34.

A student carries out a study on the population of grass F in a field. He sets

up five 1m X 1m quadrats randomly in the field and determines the coverage

of grass F in each quadrat. The results he obtained are as below.

Quadrat Area covered by grass F in each quadrat/ m2

1 0.17

2 0.43

3 0.55

4 0.125 0.68

33. What is the percentage coverage of grass F in the field?

A. 25%

B. 32%

C. 39%

D. 45%

E. 52%


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34. What is the frequency of grass F in the field?

A. 17%

B. 43%

C. 55%

D. 68%E. 100%

35. Which of the following is NOT TRUE?

A. A population contains only one species

B. A community is made up of many population

C. A niche is a physical space occupied by organisms, its way of life and

all its functional roles played.

D. Ecosystems are static and are not in dynamic equilibrium.

E. Community refers to all the living organisms in an ecosystem.

36. Which of the following are characteristics of mangrove trees?

I. Highly branched root system

II. Presence of pneumatophores

III. Viviparous seeds

IV. Succulent leaves

A. I, II and III

B. I, II and IV

C. I, III, and IV

D. II, III and IVE. I, II, III and IV

37. What kind of interaction is exhibited by the mould, Mucorsp. and the bread?

A. Commensalism

B. Mutualism

C. Parasitism

D. Saprophytism

E. Competition

38. Which of the following diseases is caused by a fungus?

A. Cholera

B. Ringworm

C. Tuberculosis

D. Malaria

E. Typhoid fever

39. Which of the following is not categorized under kingdom Fungi?

A. Bread moulds

B. MossesC. Mushroom


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D. Yeast

E. All are false

40.P,Q, Rand Sare four groups of plants.

P: Submerged plantsQ: Ground plants

R: Amphibious plants

S: Floating plants

What is the correct sequence of plants in the succession at a disused of

mining pool?

A. PSRQ

B. SRPQ

C. RSPQ

D. PSQR

E. SPRQ

41. The cellular oxidation of glucose molecule to produce 36- 38 molecules of

ATP takes place in

A. Cytoplasm only

B. Mitochondria only

C. Chloroplast and Mitochondria

D. Cytoplasm and Mitochondria

E. Cytoplasm and Chloroplast

42. The diagram below shows a model of the lungs.

What will happen to the air pressure in the bell jar and in the balloons when

the string adhered to the rubber diaphragm is pulled down?

Air pressure in the bell jar Air pressure in the balloons

A Increases Decreases

B Decreases Increases

C Decreases Decreases

D Increases Increases


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43. In plants, aerobic respiration

A. Generates energy from light

B. Generates energy from glucose

C. Use energy to break down glucose

D. Only occurs in the darkE. Only occurs in daylight

44. What process takes place in fishs gill to allow gaseous exchange to occur?

A. Active transport

B. Osmosis

C. Simple diffusion

D. Facilitated diffusion

E. Assimilation

45. A frog breathes by using

A. The floor of its buccal cavity

B. Its diaphragm

C. Its intercostal muscles

D. The floor of its buccal cavity,its diaphragm and its intercostals muscles

E. Its gill

46. Cigarette smoke can cause

I. Cancer

II. Respiratory diseaseIII. Cardiovascular disease

IV. Birth defects

A. I and II only

B. II and IV only

C. III and IV only

D. I, II and III only

E. I, II, III and IV

47. Which of the following chemicals are found in cigarette smoke?

I. Tar

II. Benzene

III. Silver

IV. Mercury

A. I and II only

B. I and III only

C. I and IV only

D. II and III only

E. III and IV only


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48. What are the percentages by volume of oxygen and carbon dioxide in expired

air?

Percentage of oxygen Percentage of carbon dioxide

A 21 0.04

B 21 4.0

C 16 0.04

D 16 4.0

E 16 40.0

49. Which of the following is not a feature of topography?

A. Altitude

B. Gradient

C. pH

D. Aspect

E. All are false

50. Figure below shows a leaf from a bryophyllum plant.

What type of interaction is shown by the plantlets (buds) of the bryophyllumleaf?

A. Interspecific competition

B. Intraspecific competition

C. Commensalism

D. Mutualism

E. Parasitism

END OF QUESTION PAPER


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FORM 4 BIOLOGY

TEST 4

PAPER 1

SCHEME

1. D 26. B

2. B 27. E

3. C 28. A

4. C 29. C

5. A 30. D

6. B 31. C

7. E 32. B

8. C 33. C

9. A 34. E

10. E 35. D

11. B 36. E

12. D 37. D

13. C 38. B

14. D 39. B

15. B 40. A

16. A 41. D

17. C 42. C

18. C 43. B

19. E 44. C

20. D 45. A

21. B 46. E

22. D 47. A

23. E 48. D

24. C 49. C

25. A 50. B


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2. The figure below shows the structure associated with breathing and gaseous

exchange in humans.

a) Label structure P to Y. [10 marks]

P: _____________________________ U: ___________________________

Q: _____________________________ V: ___________________________

R: _____________________________ W: ___________________________

S: _____________________________ X: ___________________________

T: _____________________________ Y: ___________________________

b) State 3 adaptations of structure Y to make it efficient in gaseous exchange.

[3 marks]

_______________________________________________________________ ___________________________________________________________________

_________________________________________________________________

_________________________________________________________________

c) i) A pigment is required for structure U to transport oxygen, Name the pigment.

[1 mark]

_________________________________________________________________

ii) State the type of protein structure that pigment (c)(i) belongs to. [1 mark]_________________________________________________________________

iii) What will form when the pigment reacted with oxygen. [1 mark]

_________________________________________________________________

d) Describe how carbon dioxide is transported from the body tissues to the alveoli

[3 marks]

_______________________________________________________________ __

_________________________________________________________________

_________________________________________________________________


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3. a) Complete the table given below. [5 marks]

Kingdom Organisms

Escherichia coli

Animalia Panthera leo

Drosophila melanogaster

Mucor sp.Paramecium aurelia

Hibiscus schizopetalus

Fungi Saccharomyces cerevisiae

b) Why should organisms be classified? [2 marks]

_________________________________________________________________

_________________________________________________________________

_________________________________________________________________

c) Discuss the general characteristics that are possessed by a virus [3 marks]

_______________________________________________________________ __

_________________________________________________________________

_________________________________________________________________

_________________________________________________________________

_________________________________________________________________

_________________________________________________________________

d) State 3 general characteristics of fungi. [3 marks]

__________________________________________________________________________________________________________________________________

_________________________________________________________________

_________________________________________________________________

_________________________________________________________________

_________________________________________________________________

e) Complete the hierarchy given below. [3 marks]

Kingdom_______________Class_______________Family

_______________Species

f) Distinguish Prokaryotes (Monera) and Eukaryotes. [2 marks]

_________________________________________________________________

___________________________________________________________ ______

_________________________________________________________________

_________________________________________________________________


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SECTION B

[40 marks]

Answer any two questions.

4. a) Explain the type of interaction shown by [15 marks]

i) Lichenii) Epiphyte and tall tree

iii) Remora fish and shark

iv) Remora fish and sea anemones

v) Rafflesiasp. and its host tree

b) Discuss the usage of microorganisms in biotechnology field. [5 marks]

5. a) Briefly explain the following processes. [10 marks]

i) aerobic respiration

ii) anaerobic respiration

b) Explain the regulatory mechanisms of oxygen contents and carbon dioxide

contents during vigorous activities. [10 marks]

6. Write a short note about the following

a) Differences between photosynthesis and respiration [6 marks]

b) Emphysema and bronchitis [4 marks]

c) Respiratory structure and breathing mechanisms of insects. [10 marks]

7. a) A tropical rainforest is a climax ecosystem that has been formed from a

mangrove swamp. Based on the statement, explain the process if colonizationand succession of mangrove swamps until a tropical rainforest in formed.

[10 marks]

b) By giving suitable examples, describe the methods of transmission of diseases.

[10 marks]

END OF QUESTION PAPER

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Form 4 Biology Test 4