An old man is likely to be long-sighted because age affects the
- A. optic nerves
- B. retina
- C. ciliary muscles
- D. cornea
- E. aqueous humour
The mammalian endocrine system is responsible for?
- A. transmitting impulse
- B. regulating body temperature
- C. regulating osmotic pressure of blood
- D. chemical co-ordination
- E. the manufacture of blood
Germination which results in the cotyledons being brought above ground is called
- A. hypocotyl
- B. epicotyl
- C. epigeal
- D. hypogeal
- E. plumule
A young plant showing yellow leaves is likely NOT to be deficient in?
- A. calcium
- B. magnesium
- C. potassium
- D. boron
The hereditary material in a cell is known as
- A. ADP
- B. CNS
- C. RNA
- D. ATP
- E. DNA
The characters by which an organism is recognized are termed its
- A. phenotype
- B. genotype
- C. morphology
- D. anatomy
- E. physiology
Irish potato is a
- A. bulb
- B. tap root
- C. rhizome
- D. root tuber
- E. stem tuber
For pollen to be released in Crotalaria the insect must depress the
- A. wing
- B. keel
- C. standard
- D. antepetalous stamen
- E. antesepalous stamen
If a flower is protandrous then it
- A. must be unisexual
- B. has an undeveloped androecium
- C. has no androecium
- D. must be insect-pollinated
- E. can prevent self pollination
The maize grain is a fruit and not a seed because it
- A. has a large endosperm
- B. is formed from an ovary
- C. is a monocotyledon
- D. has no plumule and radicle
- E. has a hypogeal germination
The appendicular skeleton is made up of the
- A. limbs
- B. skull and limbs
- C. phalanges
- D. ulna and radius
- E. girdles and limbs
Movements and positions of the head in man are detected by the
- A. cochlea
- B. malleus
- C. utriculus
- D. semicircular canals
- E. outer ear
Which of the following organs regulates the amount of amino acids and glucose in the body?
- A. Kidney
- B. Liver
- C. pancreas
- D. Spleen
- E. Stomach
In mammals, the function of the sebaceous gland is to
- A. produce sweat
- B. secrete sodium choride
- C. secrete water
- D. produce an oily substance
- E. manufacture vitamin D for the skin
Identify which of the following are characteristics of the vertebrate respiratory surface 1. Moist 2. Vascularized 3. Semipermeable 4. Freely permeable 5. Dry
- A. 1, 2, 3
- B. 1, 2, 5
- C. 2, 3, 5
- D. 2, 4, 5
- E. 1, 3, 5
Which of the following events does NOT occur during anaerobic respiration of glucose?
- A. Muscle cells produce lactic acid
- B. Carbon dioxide is produced
- C. Milk bacteria produce lactic acid
- D. Energy is not produced
- E. Germinating seeds produced alcohol
If a child can receive blood from all donors , he belongs to the blood group
- A. O
- B. A
- C. B
- D. AB
- E. AS
Blood platelets are important because they are
- A. amoeboid and nucleated
- B. produce antitoxins
- C. produce antibodies
- D. digest harmful bacteria
- E. release thrombin for blood clothing
The vein which returns blood from the head and arms to the heart is called
- A. aorta
- B. inferior vena cava
- C. superior vena cava
- D. pulmonary vein
- E. pulmonary artery
The function of lymph nodes is to
- A. supply oxygen
- B. filter out bacteria
- C. form red blood cells
- D. supply amino acids
- E. supply simple sugars
Partially digested food ready to leave the stomach is referred to as
- A. chyme
- B. curd
- C. glycogen
- D. paste
- E. roughage