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A Handbook of Biology

Trypsinogen

Fats

Diglycerides

Monoglycerides

Chymotrypsinogen

Procarboxypeptidase

Nucleic acids

Proteins, Peptones and

Proteoses

Dipeptides

Trypsin [NEET 2020]

Chymotrypsin

Carboxypeptidase

Nucleotides

Enterokinase

Trypsin

Trypsin

Nucleases

Trypsin/Chymotrypsin

Carboxypeptidase

Lipases

Lipases

Action of intestinal juice: The enzymes of the intestinal juice act on the end

products of the above reactions.

Dipeptides

Amino acids

Dipeptidase

Maltose

Glucose + Glucose

Maltase

Lactose

Glucose + Galactose

Lactase

Nucleotides

Nucleosides

Nucleotidase

Nucleosides

Sugar + Bases

Nucleosidase

Diglycerides, Monoglycerides

Fatty acid + Glycerol

Lipases

Sucrose

Glucose + Fructose

Sucrase

FAT DIGESTION MAINLY OCCURS IN SMALL INTESTINE.

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Fully digested semifluid and alkaline food formed in small intestine is

called chyle.

REGULATION OF DIGESTION

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The digestive activities like gastric and intestinal secretions are controlled

by the neural and hormonal mechanisms. The sight, smell or the

presence of food in the buccal cavity stimulate the salivary secretions.

Gastric & intestinal mucosa secretes digestive hormones. They control

secretion of digestive juices.

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Endocrine cells present in different parts of the gastro – intestinal track

secrete 4 major peptide hormones – Gastrin, secretin, cholecystokinin