BIOLOGY - 10TH - CIRCULATORY SYSTEM

NAME :

ROLL NO :

White blood cells engulf bacteria in a process called:

• (a) diapedesis
• (b) phagocytosis
• (c) active transport
• (d) passive transport

The nearest organ to which the heart supplies oxygenated blood is __________ .

• (a) Lung
• (b) Stomach
• (c) Intestine
• (d) Heart itself

The function of WBC is:

• (a) To distribute heat
• (b) To protect enzymes
• (c) To cause blood clotting
• (d) To destroy bacteria

Agranulocytes are:

• (a) Lymphocytes, monocytes
• (b) Lymphocytes, basophils
• (c) Eosinophils, basophils
• (d) Eosinophils, monocytes

0The chief function of lymph nodes in mammals is to:

• (a) Produce WBCs
• (b) Produce hormones
• (c) Destroy old RBCs
• (d) Destroy pathogens