If a person is bitten by a snake on the leg, it is advisable for him to
- A. keep moving so that the venom will ooze out with bleeding
- B. Wash the wound with water containing antiseptic
- C. bandage the wound so that germs do not get in through it
- D. Keep still and apply a tourniquet above the wound
The equation that can be used to summarize the process of anaerobic breakdown of sugar is
- A. C2H12O6 2C2H5OH + 2CO2
- B. 6Co2 + 6H2O C6H12O6 + 6O2
- C. C6H12O6 + 6O2 6CO2 + 6H2O + enegy
- D. C6H12O6 2C2H5OH + 2CO2 + energy
Which of the following statement is NOT correct with respect to inhalation in mammals? The
- A. intercostal muscles contract
- B. diaphragm is raised
- C. ribs are raised
- D. Pressure of the thoracic cavity decreases
A major limitation in the use of the potometer for measuring the rate of transpiration is that
- A. it is made of breakable glass materials
- B. it measures the rate of water intake
- C. it measure the rate of water loss throuh the stern only
- D. the movement of the air buble in the potometer cannot be timed accurately
The aperture between the left auricle and the left ventricle is guarded by the
- A. auricles valve
- B. tricupid valve
- C. ventricles valve
- D. bicuspid valve
Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatals cavity 4 Stomata
- A. 3 → 2 → 1 → 4
- B. 2 → 3 → 1 → 4
- C. 2 → 1 → 3 → 4
- D. 1 → 2 → 3 → 4
Blood circulation in a mammalian is said to be double because
- A. it passes twice through the heart in a complete circuit
- B. it moves in both arteries and veins
- C. it circulates in both the heart and other organs
- D. the heart contain auricles and ventricles
Evidence that a tooth is a living part of the mammalian can be found within the
- A. gum
- B. pulp cavity
- C. cement
- D. enarmel
The three important organs that are situated close to the stomach are
- A. Kidney, liver and gall bladder
- B. pancreas, liver and kidney
- C. liver, kidney and spleen
- D. gall bladder, pancreas and spleen
The extract from food substance reacting with sodium hydroxide and copper sulphate solutions will produce violet to purple coloration if
- A. fats are presents
- B. carbohydrate is present
- C. protein is present
- D. reducing sugar is presents
In addition to the high calories derived from fats and oils, they are
- A. used in producing new cells
- B. necessary for enzyme formation
- C. used as insulators for cold
- D. required for growth
The severe deficiency of vitamin C leads to
- A. Kwashiokor
- B. beriberi
- C. pellagra
- D. scurvy
Which of the following elements is essential for the formation of haemoglobin?
- A. Sodium
- B. Potassium
- C. Calcium
- D. Iron
The main organic substances found in the human body are
- A. carbohydrates, proteins and salts
- B. salts, fats and proteins
- C. fat, carbohydrates and protein
- D. salts, fats and carbohydrates
Which of these is a trace element?
- A. Iron
- B. Copper
- C. Calcium
- D. Sulphur
Oxygen liberated during photosynthesis has been demonstrated to come from
- A. carbondioxide
- B. air
- C. water
- D. chlorophyll
The stem differs from the root in having the xylem and phloem strands
- A. on the same radii
- B. scattered
- C. on alternate radii
- D. towards the pith
The fins making up the limbs of the bony fish are
- A. caudal and ventral
- B. ventra and pelvic
- C. pelvic and pectoral
- D. pectoral and dorsal
The male cockroach differs from the female by having
- A. mandibles
- B. a pair of style
- C. spiracles
- D. a pair of cerci
When the original king and queen of termites die, they are replaced by
- A. the king and queen of another colony
- B. some adult reproductives from the same colony
- C. some adult workers which are specially fed breed
- D. developing nymphs nurtured as secondary reproductives
Fishes are cold blooded because their body temperature is
- A. constantly low
- B. constantly high
- C. dependent on that of their surroundings
- D. regulated at will