A-person who fails to detect the bitter taste of a substance swallowed, is more likely to have
- A. dead taste buds on the tongue
- B. avoided the substance from contacting the back of his/her tongue
- C. fewer taste buds on the tongue
- D. swallowed the substance without any water
The mineral needed for the formation of haemoglobin is
- A. magnesium
- B. iron
- C. phosphorus
- D. calcium
Loam is the best type of soil for crop production because
- A. it has a high percentage of clay which prevents leaching
- B. it has high humus content
- C. it is porous and has good water retention capacity
- D. gravels which obstruct implements are absent from it
Which of the following is not a micronutrient?
- A. Manganese
- B. Copper
- C. Potassium
- D. Zinc
Magnesium is needed by plants for
- A. protein synthesis
- B. formation of cell membrane
- C. activation of enzymes
- D. formation of chlorophyll
Turgidity in the cell of plant does not easily lead to bursting of the cell because the
- A. cell membrane can resist the turgidity
- B. large vacuole contained in the cell, can continuously take in water
- C. cellulose cell wall can resist the turgidity
- D. cytoplasm is jelly-like
Which of the following organisms is a chemo-autotroph?
- A. Virus
- B. Bacteria
- C. Paramecium
- D. Euglena
Which of the following is an evidence of photosynthesis?
- A. Absorption of light
- B. Formation of starch
- C. Availability of carbon dioxide
- D. Splitting of water molecules
In which of the following processes is light energy converted to ATP?
- A. Osmosis
- B. Transpiration
- C. Chemosynthesis
- D. Photosynthesis
Which of the groups of structures listed below contains chloroplast?
- A. I, II and III
- B. II, III and VII
- C. III, VIII and IX
- D. III, VIII and Xl
The pallisade cells are the structures labelled
- A. III
- B. IV
- C. VI
- D. VIII
Manufactured food is transported from the leaves through the structure
labelled
- A. IV
- B. V
- C. VI
- D. VII
Carbon dioxide enters the leaf through the structure labelled
- A. I
- B. II
- C. IX
- D. X
The spinneret found in the caterpillar of butterfly is used for
- A. protection against predators
- B. feeding on vegetation
- C. movement on twigs
- D. production of silk thread
Which of the following is an agent of pollination of grasses?
- A. Insects
- B. Water
- C. Wind
- D. Mammals
Which of the following vertebrates incubate their eggs?
- A. Mammals
- B. Birds
- C. Amphibians
- D. Reptiles
In mammals, fertilization usually occurs in the
- A. cervix
- B. vagina
- C. uterus
- D. oviduct
Which of the following statements about the maize grain is not correct?
- A. undergoes hypogeal germination
- B. is a fruit
- C. is non-endospermous
- D. has pericarp fused with the testa
Short-sight could be corrected with the use of
- A. convex lens
- B. cylindrical lens
- C. concave lens
- D. bifocal lens
The following functions are associated with the liver except
- A. regulation of blood sugar
- B. production of heat
- C. production of fibrinogen
- D. production of vitamin
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.
- A. I only
- B. II only
- C. I and III only
- D. II and III only