Blood is a liquid tissue.

• True

• False

Plasma is the liquid part of the blood. It does not contain proteins.

• True

• False

All blood cells lack a nucleus.

• True

• False

Amino acids are transported in blood cells.

• True

• False

Blood helps distribute heat throughout the body.

• True

• False

The capillary wall is

• thick, with large number of elastic fibres

• thin, with small number elastic fibres

• one-cell thick

• non-permeable

Which type of blood vessels have valves?

• arteries

• veins

• capillaries

• all of the above

Which type of blood vessels has the highest blood oxygen content?

• arteries

• capillaries

• venules

• veins

The rate of blood flow is the highest in

• the arteries

• the capillaries

• the venules

• the veins

The blood pressure is low in the veins and capillaries.

• True

• False