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. It involves only the movement of water molecules

D. Equilibrium is reached when there is equal distribution of water molecules

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 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

Blood in mammals transports oxygen because it contains the pigment called

A. haemoglobin

B. chlorocruorin

C. melanin

D. haemocyanin

E. haemoerythrin.

In which of the following is cilia not associated with movement or transport ot materials?

A. Fallopian tube funnel

B. Ectoplasm of paramecium

C. Lining of the mammalian trachea

D. Mammalian alimentary canal

E. Oral groove of paramecium.

The pilaferous layers is labelled

A. I

B. II

C. III

D. IV

E. V

The xylem is labelled

A. II

B. IV

C. V

D. VI

E. VII

The part through which manufactured sugar is transported is labeled

A. I

B. III

C. IV

D. VII

E. VI

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 upward movement of the sap in the xylem vessel is brought about by

A. transpiration stream

B. guttation

C. capillarity

D. osmosis

E. cohesion.