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
If calcium is deficient in food this may cause
- A. anaemia
- B. retarded growth
- C. sterility
- D. goitre
- E. beri-beri
A food substance which produces red colouration with Sudan III contain
- A. protein
- B. sugar
- C. starch
- D. cellulose
- E. fat
Which of the following represents the sequence of protein hydrolysis? 1. polypeptides 2. Amino acides 3. Proteins 4. Peptones
- A. 3 → 1 → 2 → 4
- B. 3 → 2 →4 → 1
- C. 3 → 1 →2 → 4
- D. 3 → 4 → 1 → 2
- E. 3 → 1 → 4 → 2
Which of the following is common to a dicotyledonous stem and monocotyledonous root?
- A. Medullary rays
- B. Central pith
- C. Wide cortex
- D. Narrow cortex
- E. Pericycle fibres
A group of similar cells performing the same function is
- A. an organ
- B. a system
- C. a tissue
- D. an organelle
- E. an enzymes
In an angiosperm leaf, the xylem is
- A. beside the phloem
- B. surrounded by trhe phloem
- C. above the phloem
- D. around the phloem
- E. in separate bundles from the phloem
In lower plants like mosses, the structure which performs the functions of roots of higher plants is called
- A. root hairs
- B. rootlets
- C. hypae
- D. rhizoids
- E. thalli
At what stage in the life history of a toad is its mode of breathing similar to that of fish?
- A. Tadpole stage
- B. External gill stage
- C. Adult stage
- D. Internal gill stage
- E. Larval stage