Which of the following indicates that Euglena is plant?
Trả lời
(D)
Presence of starch grain
2
Which of the following is a tissue?
Trả lời
(C)
Epidermis
3
The structure that produces ATP is labelled
Trả lời
(A)
VII
4
The structure labelled V is the
Trả lời
(C)
endoplasmic reticullum
5
The major function of the cell membrane is that it
Trả lời
(A)
delimits the cytoplasm
6
Carbohydrates are stored in the animal cell in the form of
Trả lời
(B)
glycogen
7
A piece of yam weighing 1.0 gm was put into some salt solution. After 3 hours, it was removed and weighed.
The recorded weight was 1.2gms. This simple experiment demonstrates that the
Trả lời
(B)
cell sap of the yam is more concentrated than the salt - solution
8
A major reason why the red blood cells can survive in the blood is that the
Trả lời
(A)
blood plasma and the red blood cells are isotonic
9
Which of the following phenomena affects plants growth in an alkaline soil?
Trả lời
(D)
Poor drainage
10
A red blood cell haemolyses when placed in a hypotonic solution because
Trả lời
(B)
the cytoplasm is less dense
11
Which bf the following structures are visible in the cell of a plant during mitosis?
Trả lời
(B)
Homologous chromosomes, nuclear membrane and spindle fibres
12
Display is a phenomenon which occurs when an animal is
Trả lời
(A)
ready for mating
13
The advantages of sexual reproduction include the following except
Trả lời
(D)
it provides means for the variation of chromosome number from generation to generation.
14
Which of the following groups contains a non-supporting structure in animals?
Trả lời
(B)
Pellicle, chitin and bone
15
Which of the following statements is true about blood groupings?
Trả lời
(D)
Group O has no antigen.
16
Which of the following is not a constituent of blood plasma?
Trả lời
(D)
Platelets
17
The process by which plants convey food material to different parts of the body is called
Trả lời
(D)
translocation
18
Which part of the gill of fish is involved in gaseous exchange?
Trả lời
(D)
Gill filaments
19
Which of the following is not a product of fermentation of glucose?
Trả lời
(C)
Lactic acid
20
Which of the following pairs of structures does not perform similar functions?
Trả lời
(B)
Root hair and mammalian hair
21
The effect of the contraction of the muscles of the diaphram is that
Trả lời
(A)
he volume of the thoracic cavity increases.
22
Which of the following is an excretory product of Amoeba?
Trả lời
(B)
Ammonia
23
Which of the following processes occurs when the body temperature of a mammal rises above the normal?
I The arterioles in the skin dilate. II Sweat production is reduced. III The erector muscles contract.
Trả lời
(A)
I only
24
The following functions are associated with the liver except
Trả lời
(D)
production of vitamin
25
Short-sight could be corrected with the use of
Trả lời
(C)
concave lens
26
Which of the following statements about the maize grain is not correct?
Trả lời
(C)
is non-endospermous
27
In mammals, fertilization usually occurs in the
Trả lời
(D)
oviduct
28
Which of the following vertebrates incubate their eggs?
Trả lời
(B)
Birds
29
Which of the following is an agent of pollination of grasses?
Trả lời
(C)
Wind
30
The spinneret found in the caterpillar of butterfly is used for
Trả lời
(D)
production of silk thread
31
Carbon dioxide enters the leaf through the structure labelled
Trả lời
(C)
IX
32
Manufactured food is transported from the leaves through the structure
labelled
Trả lời
(B)
V
33
The pallisade cells are the structures labelled
Trả lời
(A)
III
34
Which of the groups of structures listed below contains chloroplast?
Trả lời
(D)
III, VIII and Xl
35
In which of the following processes is light energy converted to ATP?
Trả lời
(D)
Photosynthesis
36
Which of the following is an evidence of photosynthesis?
Trả lời
(B)
Formation of starch
37
Which of the following organisms is a chemo-autotroph?
Trả lời
(B)
Bacteria
38
Turgidity in the cell of plant does not easily lead to bursting of the cell because the
Trả lời
(C)
cellulose cell wall can resist the turgidity
39
Magnesium is needed by plants for
Trả lời
(D)
formation of chlorophyll
40
Which of the following is not a micronutrient?
Trả lời
(C)
Potassium
41
Loam is the best type of soil for crop production because
Trả lời
(B)
it has high humus content
42
The mineral needed for the formation of haemoglobin is
Trả lời
(B)
iron
43
A-person who fails to detect the bitter taste of a substance swallowed, is more likely to have
Trả lời
(B)
avoided the substance from contacting the back of his/her tongue
44
Which of the following solutions is suitable for removing chlorophyll in a green leaf?
Trả lời
(B)
Methylated spirit
45
Which of the following is not promoted by high wind speed?
Trả lời
(C)
Breeding of plant
46
Micro-organisms which break down dead organisms and absorb their contents are called
Trả lời
(A)
decomposers
47
The substances recycled in the soil by the activities of micro-organisms during the decay of dead organisms
are first utilized by the
Trả lời
(D)
autotrophs
48
Which of the following associations can upset the balance of nature?
Trả lời
(B)
Parasitism
49
Which of the following groups of factors do the Agama lizards compete for? I. Space II. Food III. Mates
Trả lời
(D)
Space, food and mates
50
Which of the following structures in a housefly aids in the transmission of diseases in man?
Trả lời
(A)
Hairs
51
Which of these is not correct about the tse-tsefly and mosquito? They
Trả lời
(C)
have intermediate hosts
52
Which of these is a vector of malaria fever?
Trả lời
(A)
Female anopheles mosquito
53
Fresh milk is often kept in refrigerated vehicles, for distribution to customers in order to
Trả lời
(D)
ensure that the milk is presented for a longer period
54
In medicine, bacteria have proved very useful due to the production of
Trả lời
(B)
antibiotics
55
I. Complexion II. Height III. Blood Rh factor IV. Colour blindness
Which of the above human characteristics are discontinuous variations?
