Question

write the changes occurring in the passage through the alimentary canal when a person has ingested roti and dal as a part of his meal ?​

Answer 1

A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal. Answer: ... The saliva contains an enzyme salivary amylase (ptyalin) which converts starch in roti into maltose, isomaltose and small dextrins called a-dextrin.

Answer 2

Answer:

Explanation:

Roti and dal undergo the following alterations as they move through the digestive tract:

1.The oral cavity or buccal cavity is where the human alimentary canal starts. In this instance, the roti and dal are finely chewed, turning the food into a semisolid paste and blending it with saliva. As a result, food is easier to swallow, and salivary amylase aids in the conversion of starch to maltose.

2. The short pharynx follows the mouth cavity, then the oesophagus and stomach. The semisolid food containing salivary amylase travels along this route unaffected and eventually reaches the stomach.

3.The food is then further processed in the stomach, becoming a finer paste. The stomach contains HCl. The HCl is combined with the churned meal. The remaining bacteria in the food are destroyed by mixing HCl. HCl also causes food to have an acidic pH so that pepsin can function as best it can.

The dal contains protein and only a small amount of fat, while the roti contains carbohydrates and fibre.

Proteins are partially digested in the stomach. The stomach experiences the following reaction.

Protein + pepsin → Peptones + Proteoses

4.Small intestine follows the stomach. On the journey, the pancreas exudes pancreatic juice. Pancreatic amylase is present in the pancreatic juice.

Polysaccharides are changed into disaccharides by the pancreatic amylase. This is the polysaccharide processing of the roti's carbs (starch) Investigate Disaccharides.

Different enzymes included in intestinal juice aid in the digestion of all nutrients.

The walls of the small intestine absorb these after all the nutrients have been broken down into simpler forms.

The large intestine's caecum, then the rectum, are the last destinations for the undigested, unabsorbed material known as faeces.

Chymotrypsin, another enzyme found in pancreatic juice, aids in the breakdown of peptones and proteoses, whereas Lipase aids in the breakdown of lipids.

Fats  Diglycerides → Monoglycerides

#SPJ3