221.

Which of the following cells produce HCl?

• $\mathrm{\beta }$- cell

• $\mathrm{\alpha }$- cell

• Oxyntic cell

• Chief cell

The gastrin is secreted from

• intestine

• stomach

• pancreas

• rectum

The major site of protein breakdown to form free amino acids is in the

• kidney

• spleen

• liver

• bone-marrow

Kupffer's cells are

• phagocytic

• actin

• myosin

• fibrin

Meissner's corpuscles occur in

• brain

• nerve cells

• skin

• tongue

Ptyalin is inactivated by a component of gastric juice known as

• pepsin

• mucus

• renin

• HCl

Cholecystokinin stimulates the secretion of

• bile

• gastric juice

• pancreatic juice

• succus entericus

Brunner's gland is present in

• duodenum

• jejunum

• ileum

• rectum

Select the correct match of the digested products in humans given in column I with their absorption site and mechanism in column II.

• Column I	Column II
  Glycine and glucose	Small intestine and active absorption

• Fructose and Na+

  Small intestine passive absorption

• Glycerol and fatty acids

  Duodenum and move as chilomicrons

• Cholesterol and maltose

  Large intestine and active absorption

The serous membrane which covers the lungs is called

• pericardium

• peritoneum

• perichondrium

• pleura