Turgor pressure occurs in a cell when the

A. volume of its cell sap increases

B. cell loses water to its environment

C. volume of cell decreases

D. cell is put in an isotonic solution

Which of the following bones is illustrated in the diagram?

A. Tibia

B. Humerus

C. Patella

D. Scapula

The part labelled l in the diagram is for the attachment of

A. ribs

B. biceps

C. shoulder muscles

D. the vertebral column

Which of the following bones forms a joint at the point labelled II in the diagram?

A. Humerus

B. Sternum

C. Radius

D. Femur

Which of the following is correct about the transverse section of a vein, when compared with that of an
artery?

A. The lumen of a vein is wider than that of an artery

B. The endothelium of the vein is thinner than that of an artery

C. There are more smooth muscles in a vein than in an artery

D. There are valves in veins but not in arteries.

Terrestrial plants exchange gases through the following except

A. chloroplast

B. stomata

C. lenticels

D. root-cells

Glomerular nitrate contains

A. no glucose

B. amino acids

C. no proteins

D. urea

Which of the following is not a function of the liver in mammals?

A. Storage of some vitamins

B. Conversion of glycogen into glucose

C. Deamination of excess nitrogenous substances

D. Filtration of urea from the blood.

Iodine is needed by a patient suffering from a malfunctioning of the

A. salivary gland

B. thyroid gland

C. adrenal gland

D. sebaceous gland

The medulla oblongata controls all the following except

A. heart beat

B. breathing rate

C. blood pressure

D. balance and posture