Form 4 Biology Final

8/10/2019 Form 4 Biology Final

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FORM 4 BIOLOGY

FINAL TEST

PAPER 1 (100%)

2 HOUR 30 MINUTES ONLY

This question paper consists of 100 multiple choice questions. Answer all the questions.1. The outer part of pseupodia cytoplasm is usually termed as

A. Plasmasol

B. Plasmagel

C. Nucleoplasm

D. Protoplasm

E. Matrix

2. Rafflesia sp.belongs to which kingdom?

A. Plantae

B. Animalia

C. Fungi

D. Protist

E. Monera

3. The organisms which their genes are altered to give better quality and quantity yield

is known as

A. Clone

B. Transgenic organisms

C. Explants

D. Callus

E. Plantlets

4. The scientist who discovered photosynthesis involved two principal reactions is

A. Jean Baptiste van Helmont

B. Joseph Priestly

C. Jan Ingenhousz

D. Blackman

E. Robert Hill

5. Which of the following is NOTthe part of a leaf?

A. LaminaB. Lenticel

C. Petiole

D. Stomata

E. Epidermis

6. The microscopic fungi refer to

A. Mushroom

B. Algae

C. Protozoa

D. LichenE. Yeast


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7. Which of the following plant is dicotyledonous?

A. Grass

B. Orchids

C. Hibiscus

D. Maize

E. Lilies

8. Which of the following is not a characteristic for monocotyledonous plant?

A. Has fibrous root system

B. Parallel leaf venation

C. Embryo has single cotyledon

D. Floral parts usually in fours and fives or multiples of these

E. Often wind pollinated

9. Which of the following food class generate the greatest amount of energy?

A. CarbohydrateB. Proteins

C. Lipids

D. Vitamins

E. Roughage

10. Which of the following enzyme is NOT RESPONSIBLEfor carbohydrate digestion in

human body?

A. Ptyalin

B. Pancreatic amylase

C. MaltaseD. Cellulase

E. Sucrase

11. The bacteria that responsible for the cause of peptic ulcer is known as

A. Helicobacter pylori

B. Escherichia coli

C. Vibrio cholerae

D. Salmonella enterictidis

E. Thiobacillus denitrificans

12. Which of the following is an endoparasite?

A. Rafflesia sp.

B. Taenia solium

C. Leeches

D. Mushroom

E. Birds nest fern


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13. Which of the following sugar is the sweetest?

A. Glucose

B. Galactose

C. Fructose

D. Sucrose

E. Lactose

14. The main form of sugar that plant used to transport is

A. Glucose

B. Fructose

C. Cellulose

D. Sucrose

E. Glycogen

15. The diagram below shows the movement of sucrose molecules in water.

What is process X?

A. Active transport

B. Osmosis

C. Simple diffusion

D. Facilitated diffusionE. Evaporation

16. Which of the following does not involved active transport?

A. Absorption of potassium ions by animal cells

B. Uptake of mineral salts and ions by root hairs

C. Absorption of oxygen from the water by fish gills

D. Accumulation of iodide ions by algae

E. Nerve impulses transmission along the axon

17. The diagram below shows the set up of an experiment.

What will be the observation of the experiment?

A. The level of sucrose solution in the thistle funnel decreases.B. The level of sucrose solution in the thistle funnel increases.


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C. The sucrose solution in the thistle funnel empties into the beaker.

D. The level of sucrose solution in the thistle funnel remains unchanged.

E. The semi-permeable membrane will shrink and leak.

18. Figure below shows a stage during cell division.

Which part of a plant does this process take place?A. Anther

B. Filament

C. Stigma

D. Sepal

E. Cambium

19. Which of the following component is NOT FOUNDin pancreatic juice?

A. Amylase

B. Trypsin

C. Sodium hydrogen carbonateD. Bile

E. Lipase

20. Which of the following component is not found in chloroplast?A. ThylakoidB. GranumC. MatrixD. StromaE. Starch granule

21. The blood osmotic pressure level is regulated by theI. Nervous systemII. Circulatory systemIII. Endocrine systemIV. Excretory system

A. I, II and IIIB. I, II and IVC. I, III and IVD. II, III and IVE. I, II, III and IV


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22. There are how many naturally occurring amino acids?

A. 18

B. 20

C. 21

D. 24

E. It is too diverse to be taken into account

23. The diagram below shows a sucrose molecule.

What is X?

A. Peptide bond

B. Ester linkage

C. Glycosidic bond

D. Hydrogen bond

E. Phosphodiester bond

24. Which of the following amino acid contains sulphur element?

A. Lysine

B. Cysteine

C. Glycine

D. Leucine

E. Glutamine

25. Which of the following is NOTa function for liver?

A. Detoxification

B. Storage of Vitamin D

C. Heat production

D. Protein metabolism

E. Osmoregulation

26. Which of the following is NOTa permanent tissue in plant?

A. Xylem

B. Parenchyma tissue

C. Epidermal tissue

D. Meristematic tissue

E. Sclerenchyma tissue


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27. Which of the following is NOTa connective tissue?

A. Blood cells

B. Bone

C. Skeletal muscle

D. Cartilage

E. Adipose tissue

28. Which of the following is NOTmade up of lipids?

A. Thyroxine

B. Oestrogen

C. Cuticle

D. Phospholipids

E. Sebum

29. Which vitamin deficiency will lead to pernicious anemia?

A. Vitamin AB. Vitamin B3

C. Vitamin B5

D. Vitamin B12

E. Vitamin E

30. What changes are made by the colonisers in the process of succession of a bare

ground?

I. Colonisers increase the humus content of soil

II. Colonisers change the structure and quality of soil

III. Colonisers change temperature of the ecosystemIV. Colonisers cause soil erosion

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

31. Which of the following microorganisms is beneficial?

A. Helicobacter pylori

B. Lactobacillus acidophilus

C. Plasmodium sp.

D. Vibrio cholerae

E. Salmonella enterictidis

32. There are ____________ pairs of salivary gland in human body.

A. 1

B. 2

C. 3

D. 4

E. 5


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33. Which of the following is NOTa branch from microbiology?

A. Bacteriology

B. Entomology

C. Virology

D. Mycology

E. Phycology

34. Which of the following organ synthesize bile?

A. Liver

B. Kidney

C. Gall bladder

D. Pancreas

E. Duodenum

35. Which of the following organism DOES NOThas a circulatory system?

A. HumansB. Birds

C. Fish

D. Insects

E. Amphibians

36. Ebola virus is mainly transmitted via

A. Airborne

B. Direct contact

C. Food or water

D. Sexual intercourseE. Vectors

37. We can prevent hypertension by involving ourselves the following activities, EXCEPT

A. Regular exercise

B. Balanced diet

C. Consume sucrose rather than glucose

D. Avoid smoking and alcoholic drink

E. Frequently consult the physician to monitor the blood pressure

38. Which of the following is NOT INCLUDEDin the intestinal juice?

A. Fructase

B. Maltase

C. Sucrase

D. Lactase

E. Erepsin

39. Urea is produced from the breakdown of

A. Glucose

B. Galactose

C. Amino acid

D. Triglycerides

E. Alcohol


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40. Which of the following food test is NOT APPLICABLEfor lipids?

A. Ethanol emulsion test

B. Grease spot test

C. Sudan test

D. Millions test

E. All are false

41. Which of the following is NOTa function for calcium ion?

A. Formation of strong bone and teeth

B. For blood clotting

C. Used to form erythrocytes

D. For muscle contraction

E. All are false

42. Which of the following is NOTa function of water?

A. Act as lubricantB. Precursor for vitamin B synthesis

C. Act as universal solvent

D. Act as stable medium for biochemical reaction to take place

E. Provide structural support in herbaceous plant

43. The main energy storage in our body is in the form of

A. Glycogen

B. Starch

C. Lipids

D. ProteinsE. Fibres

44. Which of the following is NOTa function of lipids?

A. Form steroid hormone

B. Protect the internal organ

C. For heat insulation

D. As constituent of nucleic acid

E. Form the component of plasma membrane

45. Which of the following nitrogenous base in NOTpresent in RNA?

A. Adenine

B. Thymine

C. Cytosine

D. Guanine

E. Uracil

46. Which of the following is FALSEabout ATP?

A. ATP is the universal energy compound in living organisms.

B. ATP is made up of 1 adenosine and 3 phosphate group.

C. When ATP is broken down to ADP, energy stored is released.

D. 38 ATP is generated via aerobic respiration.

E. No ATP will form via photosynthe


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47. The maximum number of hydrogen bonds in which a water molecule can participate

is

A. 1

B. 2

C. 3

D. 4E. 5

48. rRNA is synthesized from

A. Nucleus

B. Nucleolus

C. Golgi apparatus

D. Smooth ER

E. Rough ER

49. Which of the following organisms unable to carry out photosynthesis?A. Green plant

B. Fungi

C. Cyanobacteria

D. Algae

E. All are false

50. Which of the following has the smallest size?

A. Bacteria

B. Virus

C. FungiD. Protozoa

E. Algae

51. Which of the following is the true stomach of a ruminant?

A. Rumen

B. Reticulum

C. Omasum

D. Abomasum

E. Caecum

52. The protozoa and bacteria which are capable to synthesize cellulase are found in

I. Rodent

II. Ruminant

III. Human

IV.Termite

A. I,II and III only

B. I, II and IV only

C. I, III, IV only

D. II, III, IV only

E. I, II, III and IV


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53. Which of the following does NOTbelongs to tertiary structure of proteins?

A. Antibodies

B. Enzymes

C. Hormones

D. Myoglobin

E. Haemoglobin

54. The vein which is bridged with thoracic duct and bring along the lymph back to

circulatory system is known as

A. Hepatic portal vein

B. Subclavian vein

C. Pulmonary vein

D. Renal vein

E. Jugular vein

55. The substance that large intestine is able to reabsorb isA. Vitamin B3

B. Vitamin B9

C. Vitamin C

D. Vitamin K

E. Glucose

56. Bile is mainly made up of

A. Proteins

B. Glycoproteins

C. CholesterolD. Calcium

E. Sodium chloride

57. What substance will ileum absorb by utilizing active transport?

A. Fatty acids

B. Glycerol

C. Amino acids

D. Mineral Ions

E. Vitamins D

58. Which of the following substance will NOTbe found in the colon of a healthy person?

A. Glucose

B. Cellulose

C. Dead cells

D. Vitamin B12

E. Water

59. Which of the following substance present in excess will lead to cardiovascular

disease?

A. HDL

B. LDL

C. Proteins


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D. Starch

E. Glucose

60. Which of the following does NOTbelong to the branch of Biology?

A. Phyclogy

B. PhysiologyC. Psychology

D. Ecology

E. Anatomy

61. The most optimum amount of water to be consumed by an adult is about

A. 1L

B. 2.5L

C. 3.5L

D. 4.5L

E. 7L

62. Which of the following plant tissue is lignified?

A. Parenchyma

B. Collenchyma

C. Sclerenchyma

D. Phloem

E. Meristematic

63. The pH of blood is maintained by controlling the concentrations of

I. Hydrogen ionsII. Hydroxide ions

III. Hydrogen carbonate ions

IV. Hydrochloric acid

A. I and II only

B. III and IV only

C. I, II and III only

D. I, II and IV only


64. Which of the following are plasma proteins?

I. Fibrinogen

II. Globulin

III. Collagen

IV. Albumin

A. I and II only

B. III and IV only



E. II, III and IV only


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65. Cholesterols are transported in the form of _________________ in blood.

A. Glycolipids

B. Glycoproteins

C. Lipoproteins

D. Plasma

E. Leucocytes

66. Non-flowering plants can also be known as

A. Angiosperms

B. Gymnosperms

C. Ferns

D. Shrubs

E. Herbs

67. Which of the following is an ester compound?

A. GlycogenB. Starch

C. Cellulose

D. Triglyceride

E. Protein

68. A plant can possibly reach the compensation point during

I. Light intensity is high

II. Light intensity is low

III. Nightime

IV DuskA. I and II only

B. I and III only

C. I and IV only

D. II and III only

E. II and IV only

69. - Green in colour

- Grow on other plants for support

- Have root systems with many ants and organic matter

The above information refers to

I. Epiphytes

II. Producers

III. Saprophytes

IV. Autotrophs

A. I and II only

B. III and IV only



E. II, III and IV only


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70. Which of the following actions can help in reducing the problems associated with

global warming?

I. Encourage the replanting of tress

II. Encourage the use of public transportation

III. Encourage the use of biofuels in place of fossil fuels

IV. Encourage the use of non-CFC productsA. I, II and III only

B. I, II and IV only

C. I, III and IV only

D. II, III and IV only


71. Which of the following statements explains the importance of controlling the amount

of nitrate fertilizer use in farms?

A. Nitrate leads to acid rain

B. Nitrate reduces soil fertility concentration in sea waterC. Nitrate leads to population explosion of algae

D. Nitrate is toxic to crop plants

E. Nitrate leads to ozone depletion

72. Which of the following substances are the main contributors to the greenhouse effect?

A. Oxygen and CFCs

B. Methane and CFCs

C. Sulphur dioxide and oxides of nitrogen

D. Oxides of nitrogen and methane

E. Sulphur dioxide and CFCs

73. The burning of fossil fuels has been shown to be related to the corrosion of stone

buildings. Which of the following pollutants is responsible for this occurrence?

A. Fine particulate matter

B. Ozone

C. Sulphur dioxide

D. Carbon monoxide

E. Methane

74. Which of the following processes would be able to reduce nitrogen dioxide emission

from motor vehicle exhausts?

A. Gas filters

B. Catalytic converter

C. Reverse osmosis

D. Filtration

E. Fermentation

75. Which of the following is NOTan example of a renewable energy resource?

A. Wind energy

B. Solar energy

C. Hydroelectric energy

D. Nuclear power


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E. Biofuel

76. Which of the following best describes biochemical oxygen demand?

A. The amount of oxygen in 1 litre of water as measured during the day

B. The amount of oxygen in 1 litre of water as measured during the night

C. The amount of oxygen produced by plant plankton in 1 litre of waterD. The amount of oxygen used up by microorganisms in 1 litre of water

E. The amount of oxygen contained in a particular environment in 1 litre of water

77. Which of the following describes the cause and effect of the enhanced greenhouse

effect?

Cause Effect

A Emission of CFCs Skin cancer

B Emission of CFCs Air pollution

C Emission of CFCs Flooding

D Combustion of fossil fuels EutrophicationE Combustion of fossil fuels Landslide

78. Which of the following explains why the ozone is important to organisms on earth?

A. It filters out infrared rays

B. It filters out ultraviolet rays

C. It detoxifies harmful solar radiation

D. It breaks down harmful greenhouse gases

E. It reduces the amount of CO2present on earth

79. Which of the following statements is NOT TRUEabout the importance of mangrove

forests?

A. They are habitats and feeding sites for a rich variety of organisms

B. They lessen the impact of flooding

C. They provide a natural reservoir for trapping waste materials washed

downstream from urban areas

D. They prevent soil erosions of coastlines

E. They provide source of raw materials for building

80. Which of the following can lead to the formation of red tides or algal blooms occurring

in the sea?

A. Oil spills in the seaB. A reduced oxygen concentration in sea water

C. A surge in the concentration of organic substances in sea water

D. A surge in the concentration of nitrate in sea water

E. Overexploitation of fish in sea water

81. Which of the following is true regarding biological control?

A. Pests do not become resistant

B. Require high cost

C. Causing destabilisation of ecosystem

D. Has bioaccumulation effectE. Require wide range of equipment


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82. Which of the following is NOT the importance of forest?

A. As carbon sink

B. Provide timber

C. Reservoir of biological diversity

D. Depository for medical plants

E. All are true

83. Which of the following are the effects of untreated sewage pollution on the BOD and

the number of bacteria in a river?

BOD Number of bacteria

A Decreases Decreases

B Increases Increases

C Increases Decreases

D Decreases Increases

E No changes No changes

84. The interaction that exist between human and Escherichia coliin colon is known as

A. Parasitism

B. Mutualisms

C. Commensalisms

D. Competition

E. Prey predator

85. Mycorrhiza is the interaction between

A. Fungi and vascular plant root

B. Fungi and algae

C. Fungi and protozoa

D. Algae and protozoa

E. Bacteria and algae

86. Which of the following does NOTbelongs to commensalisms interaction?

A. Remora fish and shark

B. Staghorn fern and tall tree

C. Rhizobium sp.and leguminous plants

D. Hermit crab and barnacle

E. Clownfish and sea anemones

87. Where does anaerobic respiration take place in a cell?

A. Mitochondria

B. Cytoplasm

C. Nucleus

D. Ribosome

E. Rough ER

88. Climbers who are not acclimatised to high altitude may suffer from

A. Hypoxia

B. HypoglycaemiaC. Anemia


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D. Dehydration

E. Emphysema

89. Which of the following is the correct sequence involved in tissue culture?

A. ExplantEmbryoCallusPlantlet

B. PlantletEmbryoCallusExplantC. ExplantCallusEmbryoPlantlet

D. PlantletCallusEmbryoExplant

E. EmbryoCallusExplantPlantlet

90. Which of the following event is NOT INCLUDEDin mitotic telophase?

A. Spindle fiber disappearance

B. Nuclear membrane and nucleolus disintegrated

C. Cytokinesis

D. DNA replication

E. All are false

91. The table below shows the volume of fruit juices required to decolourise 1cm3of 0.1%

of DCPIP solution.

Fruit juice Volume of DCPIP required

A 1.0 cm3

B 1.6 cm3

C 0.7 cm3

D 2.5 cm3

E 3.2 cm3

Which fruit juice has highest vitamin C content?

92. In industry, which of the following IS NOTcatalyzed by the enzyme protease?

A. Extract agar from the seaweeds

B. Manufacture of biological detergent

C. Used as meat tenderizers

D. Used as contact lens cleaner

E. To remove hair and to soften leather to make bags, belts and shoes

93. Which of the following pair regarding selective breeding is true?

Pisifera sp. Dura sp. Tenera sp.

A Thick mesocarp Thin mesocarp Thin mesocarpB Big kernal Small kernel Big kernel

C Thin endocarp Thick endocarp Thin endocarp

D Thin mesocarp Thick mesocarp Thick mesocarp

E Thick endocarp Thin endocarp Thick endocarp

94. In bacterial cell, it is IMPOSSIBLEto find

A. Cell wall

B. Ribosome

C. Chloroplast

D. RNA

E. DNA


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95.An essential amino acid

A. It is known as the second class proteins

B. Cannot be synthesized by the human body

C. Must be stored in the liver in sufficient amounts

D. Can be synthesized from excess non-essential amino acids via

transaminationE. There are 11 essential out of the 20 naturally occurring amino acids

96. Estrogen is an example of

A. Proteins

B. Carbohydrates

C. Steroids

D. Waxes

E. Phospholipids

97. Which of the following organisms may carry out chemosynthesis?A. Bacteria

B. Fungi

C. Green plant

D. Unicellular Algae

E. Pitcher plant

98. In which of the following phases during meiotic division do cells become haploid?

A. Anaphase I

B. Anaphase II

C. Telophase ID. Telophase II

E. Metaphase I

99. Which of the following is NOT CLASSIFIEDas catabolisms?

A. Respiration

B. Digestion

C. Respiration and digestion

D. Photosynthesis

E. All are false

100. Which of the following is FALSEabout cactus?

A. Chloroplasts are founds in the cells of stem

B. Chloroplast also found in green thorns

C. Most leaves are modified to form thorns to reduce water loss

D. Stomata are found on the stem which are covered with thick cuticle

E. Produce seeds which remain dormant during unfavourable seasons

END OF QUESTION PAPER

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Form 4 Biology Final