The piece of bone represented in the diagram is found in the
- A. pelvic region
- B. pectoral girdle
- C. vertebral column
- D. skull
- E. thoracic region
The upward movement of the sap in the xylem vessel is brought about by
- A. transpiration stream
- B. guttation
- C. capillarity
- D. osmosis
- E. cohesion.
The loss of water vapour through the aerial parts of the plant to the atmosphere is called
- A. respiration
- B. guttation
- C. osmoregulation
- D. transpiration
- E. diffusion.
The part through which manufactured sugar is transported is labeled
- A. I
- B. III
- C. IV
- D. VII
- E. VI
In which of the following is cilia not associated with movement or transport of materials?
- A. Fallopian tube funnel
- B. Ectoplasm of paramecium
- C. Lining of the mammalian trachea
- D. Mammalian alimentary canal
- E. Oral groove of paramecium.
Blood in mammals transports oxygen because it contains the pigment called
- A. haemoglobin
- B. chlorocruorin
- C. melanin
- D. haemocyanin
- E. haemoerythrin.
Which of the following is the function of the hormone in the lslets of Langerhans?
- A. is used in protein metabolism
- B. is involved in sugar synthesis
- C. aids the rate at which glucose is converted to glycogen
- D. controls the fluid content of the body
- E. plays a role in the pH balance of the body fluid
Which of the following is the correct route for the movement of materials through the kidney?
- A. Glomerulus → Bowman’s capsule → Loop of Henle → Collecting tubule → Pelvis
- B. Glomerulus → Loop of Henle → Collecting tubule → Bowman’s capsule → Pelvis
- C. Pelvis → Bowman’s capsule → Glomerulus →Loop of Henle → Collecting tubule
- D. Bowman’s capsule → Glomerulus → Loop of Henle → Collecting tubule → Pelvis
- E. Bowman’s capsule → Loop of Henle →Glomerulus → Collecting tubule → Pelvis
Which of the following statements is not true of osmotic process?
- A. There must be a selectively permeable membrane
- B. The two solutions must be of different concentrations initially
- C. t involves only the movement of water molecules
- D. Equilibrium is reached when there is equal distribution of water molecules
- E. . The two solutions are of equal concentration at the beginning of experiment.
Four cells with osmotic potential equivalent to that of 3% salt solution were immersed respectively in solutions
of different concentrations labeled as follows: I = 4% salt solution; II = 6% salt solution III = 1% salt solution;
IV = 10% salt solution; V = 5% salt solution. Which of the solutions will cause an increase in osmotic
pressure within the cell?
- A. I
- B. II
- C. III
- D. IV
- E. V
Which of the following constitutes the main internal tissue of a leaf?
- A. Cuticle
- B. Mesophyll
- C. Vascular tissue
- D. Lower epidermis
- E. Upper epidermis
Which of the following is not likely to be found in the cell of a ripe tomato fruit?
- A. plastids
- B. Chlorophyll
- C. Cellulose cell wall
- D. Mitochondrion
- E. Mineral salts
The cell membrane consists of
- A. carbohydrates and lipids
- B. vitamins and proteins
- C. lipids and proteins
- D. water and sugar
- E. starch and cellulose
Which of the following is not true of the nucleus of a living cell? It contains
- A. chromosome
- B. Nucleolus
- C. nucleoplasm
- D. chromatids
- E. ribosomes
i. Tissue ii. System ii. Cell iV. organ
Which of the following organelles is used for locomotion in Paramecium?
- A. pseudopodium
- B. Trchocyst
- C. Cilium
- D. pellicle
- E. Contractile vacuole
i. Tissue ii. System ii. Cell iV. organ
The correct sequence of the levels in an increasing order of complexity is
- A. I,II,III
- B. lll, I, l\/, ll
- C. lll, IV, l, ll
- D. lV, lll, I, ll
- E. IV, l, ll, lll
The part labelled II is made up of
- A. carbohydrates
- B. contractile vacuole
- C. waste materials
- D. protein materials
- E. food particles
Excretion is carried out through the structure labelled
- A. I
- B. III
- C. IV
- D. V
- E. VI
Which of the following structures is responsible for osmoregulation?
- A. I
- B. II
- C. III
- D. IV
- E. V