Which of the following organisms contains Chlorophyll in its cells?
Хариулт
(C)
Euglena
2
Species are groups of organisms that
Хариулт
(C)
have similar features and can interbreed freely
3
A plant with short, vertical underground stem is a
Хариулт
(B)
corm
4
The diagram above is an illustration of a reproductive process in an organism. Study it and answer ques tions 4 and 5.
The type of reproduction illustrated is
Хариулт
(B)
binary fission
5
The illustrated organism is capable of reproducing by
Хариулт
(D)
sexual and asexual means
6
Which of the following organisms consists of unicellular cells joined to form a filament?
Хариулт
(B)
Spirogyra
7
The structure in the cell that controls the movement of substances in and out of the cell is the
Хариулт
(A)
cytoplasmic membrane
8
The bursting of a red blood cell placed in a hypotonic solution is called
Хариулт
(B)
haemolysis
9
The function of the root hair in plants is to
Хариулт
(A)
absorb soil water by the process of osmosis.
10
If a germinating seed is attached horizontally to a revolving klinostat, what would be the effect on the seedling after three days? The
Хариулт
(C)
plumule and radicle will not show any curvature.
11
The lumbar vertebra differs from the thoracic vertebra because it possesses a
Хариулт
(C)
thicker centrum.
12
Which of the following blood vessels carries oxygenated blood into the heart?
Хариулт
(C)
Pulmonary vein
13
Filtrates in the Bowman's capsule contain vitamins because
Хариулт
(A)
they have low molecular weight.
14
The structures that contain grey matter and white matter are found in the
Хариулт
(B)
nervous system.
15
The diagram above is an illustration of sense organ in humans. Study it and answer questions 15 and 16.
The part that protects the organ is labelled
Хариулт
(B)
II
16
The part labelled III is the
Хариулт
(B)
pupil
17
The diagram above is an illustration of two plants P and Q. Arrows I, II and III illustrate the transfer of pollen grains among flowers of plants P and Q. Studly it and answer questions 17 and 18.
The types of pollination illustrated as I,Il and III, respectively are
Хариулт
(B)
self, self and cross
18
The condition necessary for reproduction to occur between plants P and Q after pollination is that plants P and Q should be
Хариулт
(A)
of the same species.
19
The diagram above illustrates a dry dehiscent fruit. Use it to answer questions 19 and 20.
The agent of dispersal of the fruit is
Хариулт
(D)
wind
20
The Parachute-like tuft of hairs developed from the
Хариулт
(D)
sepals
21
Which of the following events does not occur in the light reaction stage of photosynthesis?
Хариулт
(B)
Carbon (IV) oxide combines with hydrogen
22
The rate of photosynthesis decreases in a wilted herbaceous plant because the
Хариулт
(D)
amount of carbon dioxide entering the leaf decrease.
23
The element required for chlorophyll formation in plants is
Хариулт
(A)
Iron
24
The process of food digestion in mammals would
Хариулт
(D)
render food substances soluble and absorbable
25
Which of the following food substances would give a negative reaction with Benedict's reagent?
Хариулт
(D)
Sucrose
26
Sunlight is the major source of
Хариулт
(A)
Vitamin D
27
Discouraging the use of poison to kill fish in a large water body is a way of
Хариулт
(B)
conserving the fish species.
28
The pathway through which nutrient are replenished and circulated in an ecosystem is called a
Хариулт
(A)
cycle
29
The illustration below is a food chain. Study it and answer questions 29 and 30. Grasses → Grasshoppers → Lizards → Hawks
Which of the following statements is not correct about the food chain? The number of
Хариулт
(B)
grasses eaten by grasshoppers is fewer than the number of grasshoppers.
30
Grasses → Grasshoppers → Lizards → Hawks
If the individual species of organisms in the food chain are counted and arranged as a pyramid, the result would be a pyramid of
Хариулт
(A)
numbers
31
Which of the following gases is released during the decomposition of organic matter?
Хариулт
(C)
Hydrogen Sulphide
32
The diagrams above are the illustrations of organisms from different habitat. Study them and answer questions 32 and 33.
The structures labelled I are for
Хариулт
(C)
Physical defence
33
Habitats of the organisms respectively are
Хариулт
(D)
garden and desert
34
An environmental problem caused by Sulphur (IV) oxide is
Хариулт
(A)
acid rain
35
The phenomenon by which a farmland that is left to fallow for several years develops into a forest is called
Хариулт
(A)
Succession
36
A farmer planted many seeds on a small piece of land. The plants that germinated are as shown above.
Which of the following effects would not be observed among the population of the plants?
Хариулт
(C)
Mutualistic relationship
37
The bar chart above shows the data of sources of energy used for cooking in a community. Study it and answer questions 37 and 38.
The source of energy that is mostly used in the community is
Хариулт
(B)
Kerosene
38
The two sources of energy that would mostly lead to pollution in the community are
Хариулт
(C)
kerosene and coal
39
An individual found a strange bird that is tagged as an endangered specie. What should the individual do?
Хариулт
(C)
Return it to its natural habitat
40
Which of the following traits is not inheritable? Ability to
Хариулт
(D)
roll the eyeball
41
Which of the following statements is correct about the ABO blood group system?
Хариулт
(B)
Antibodies are located in the blood plasma
42
A woman with blood group A gives birth to a child with blood group O. Which of the following blood groups cannot belong to the father?
Хариулт
(C)
AB
43
The diagram above is an illustration of genetic cross between two parents. The parental gametes I, II, III and IV gave rise to the offspring below. Study it and answer questions 43 and 44.
Gametes I, II, III and IV, respectively are
Хариулт
(B)
T, t, t, and t
44
Which of the following statements is correct about the cross?
Хариулт
(C)
The female is homozygous
45
The physical appearance of an organism is described as its
