A group of closely related organisms capable of interbreeding to produce the fertile offspring are known as members of a
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(D)
species
2
A beaker of pond water containing few specimens of Euglena was placed in a dark room for two weeks. At the end of this period, the specimens of Euglena were still alive because they were
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(A)
able to carry out holozoic nutrition
3
The cytoplasm of a cell is considered a very important component because it
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(B)
suspends all cell organelles
4
Use the diagram shown to answer the question. After an hour, the level of water in the thistle funnel will
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(A)
rise
5
Use the diagram shown to answer the question. The experiment above is used to demonstrate the process of
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(D)
osmosis
6
Use the diagram shown to answer the question. In plant cells, the role of the membrane is played by the
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(B)
cell wall
7
Red blood cells were found to have burst open after being placed in distill for an hour. This phenomenon is known as
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(C)
haemolysis
8
The curvature movement of plants in response to the stimulus of water is called
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(A)
hydrotropism
9
The overall reaction in glycolysis can be summarised as
Which of the following structures is not a skeletal material?
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(D)
Muscle
12
The reason why the flow of blood through the capillaries is very slow is
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(D)
Their large numbers and one cell-thick walls enables them to provide a large surface area through which materials can be exchanged between the blood and the body cells.
13
Which of the following groups of organisms has kidney as the excretory organ?
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(A)
Fishes, amphibians, birds, man
14
Which of the following features is not a characteristic of arteries? Arteries
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(A)
possess valves at internals throughout their length
15
The graph below shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.
Which of the statements below is valid?
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(B)
The body temperature of the bird varied less than that of the lizard during changes in environmental temperature
16
The graph above shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.
What physiological term can be used to describe the regulation of the body temperature of the of the Lizard?
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(C)
Poikilothermy
17
The reason why hospitals use saline solutions as drip Instead of water is
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(C)
to maintain the composition of body fluids
18
The part of the ear which contains nerve cells sensitive to sound vibrations is the
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(A)
cochlea
19
Spectacles with convex lenses correct long-sightedness by
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(A)
converging the light rays before they enter the eye
20
A seed of a flowering plant can best be described as
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(B)
the developed ovule
21
Which of the following processes removes carbon from the atmosphere?
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(B)
photosynthesis
22
Which of the following cycles involves the process of precipitation and transpiration?
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(A)
water cycles
23
What is the critical limiting factor for plants below the photic zone in an aquatic ecosystem?
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(C)
intensity of light
24
Which of the following instruments is used to estimate the number of plants in a habitat?
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(C)
quadrant
25
Which of the following statements is true about sandy soil?
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(B)
is light and easy to dig
26
Which of the following organisms is a primary consumer?
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(B)
sheep
27
Study the diagram of a food chain shown and use; it to answer the question.
P ---> Q ---> R ---> S ---> T
The organism designated P in the food chain above is normally sustained by energy from
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(A)
sunlight
28
Study the diagram of a food chain shown and use; it to answer the question.
P ---> Q ---> R ---> S ---> T
Which of the following statements best describes the organism designated R? It
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(D)
is a secondary consumer
29
Which of the following diseases is not hereditary?
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(B)
Scabies
30
The immediate product of meiosis in flowering plants is the
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(B)
gametophyte
31
DNA in eukaryotic cells is contained in the
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(B)
nucleus
32
A woman who is heterozygous for the disease haemophilia marries a man who is haemophilic. What percentage of their offspring would have the disease?
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(C)
50%
33
Cytokinesis of mitosis is a process that ensures that
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(A)
each daughter cell gets the necessary organelles
34
An animal which is active during the day is known as a
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(B)
diurnal animal
35
Evidence of evolution include the following except?
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(D)
geographical distribution of organisms
36
Use the diagram to answer the question. The diagram shows that the organisms are
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(C)
oviparous
37
Use the diagram to answer the question. The breeding posture illustrated in the diagram is knows as
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(B)
amplexus
38
An accurate identification of a rapist can be carried out by conducting
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(B)
DNA analysis
39
A boy who is fond of swimming in a pond finds himself passing urine with traces of blood. He is like to have contracted?
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(A)
schistosomiasis
40
The flippers of a whale and the fins of a fish are examples of
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(D)
convergent evolution
41
The yellowish colored liquid component of blood that normally holds the blood cells in suspension is
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(B)
plasma
42
The function of pith in plant is
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(B)
Pith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant.
43
A pollutant that is mostly associated with acid rain is
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(A)
Nitrogen oxides
44
What is the function of contractile vacuole in paramecium?
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(D)
Gets rid of excess water
45
An organism which exhibit extracellular digestion is
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(D)
Rhizopus
46
How many days is used for incubation of an egg to release chick
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(A)
21
47
The four classes of cnidarian include the following except
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(A)
Turbellaria
48
What would happen if solution Y is more concentrated than solution X in fig 2
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(D)
The level of Y would rise, X would fall.
49
Physiological adaptation to very dry conditions in animal demonstrates
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(C)
Aestivation
50
The hormones secreted by pancreas serves to
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(C)
Lower blood glucose level
51
Blood circulation in a mammal is said to be double because
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(A)
It passes twice through the heart in a complete circuit
52
Examples of animals with mammary glands include the following except
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(D)
Hen
53
The hygrometer is used for measuring
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(A)
Relative Humidity
54
Mineral salts can be absorbed into roots by
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(C)
Diffusion and active transport
55
Which is an Animal without red blood cells
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(B)
Earthworm
56
The temporary union of two organisms and the exchange of micronuclear elements is called
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(A)
Conjugation
57
A plant tissue that carries water and mineral salt is
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(A)
Xylem
58
Which of the following relationship involves only one organism
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(A)
Saprophytism
59
Which parts provides food for the developing chick?
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(C)
3 and 4
60
The outer membrane that covers the brain is
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(B)
Dura mater
61
The process in which plant uses sunlight to synthesize nutrients from carbon dioxide and water is called
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(D)
Photosynthesis
62
Cold blooded animals are referred to as
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(A)
Poikilothermic
63
the vessel carrying oxygenated blood to the tissues is
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(A)
Arteries
64
Which of the following is a mixed gland
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(C)
Pancreas
65
A group of organism of the same species living together in a particular area is described as
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(C)
Population
66
Tikka disease is related with the crop:
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(C)
Groundnut
67
At which stage in this cycle can a man be infected?
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(B)
4
68
Total salt content in blood is about
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(D)
0.85 to 0.9%
69
The role of scolex in tapeworm is to
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(B)
attachment to the host
70
Which of the following animals is cold blooded
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(B)
Lizard
71
The energy released by 1 gram of glucose is
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(B)
4 kcal
72
What is the function of trichocyst in paramecium
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(B)
Defence
73
Man can contact tapeworm through
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(A)
ingesting uncooked meat
74
An example of a radially symmetrical organisms is
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(B)
Hydra
75
Maltose is combination of glucose and
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(A)
glucose
76
The vitamin which is important in the formation of the retina pigment is
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(A)
Vitamin A
77
In the egg of a bird, the embryo is located in the
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(B)
Yolk
78
The greatest amount of energy would be obtained by the Oxidation of 100kg of
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(B)
Butter
79
Ozone hole refers to
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(C)
decrease in thickness of ozone layer in stratosphere
80
Accessory material in a chicken egg include the following except
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(D)
Germinal disc
81
Swollen, bleeding gums are another common sign of which vitamin
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(C)
Vitamin C
82
Double fertilisation is a unique features of
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(A)
Angiosperms
83
The gland that is present close to Trachea
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(D)
Thyroid
84
A distinguishing feature of mammals is the possession of
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(D)
Hair
85
Examples of micronutrients include the following except
