Question

3) Digestion of which component of food begins in bucca
cavity ?
A. Starch B. Fats C. Vitamins D. Protein
(4) Which taste can be detected by the tip of the tongue
A. Sour B. Salty C. Bitter D. Sweet
(5) Partial digested of which of following occurs in stoma
A. Carbohydrates B. Fat C. Protein D. Cellulose
(6) In which organ the digestion of carbohydrates, fats a
is complete?
A. Large intestine B. Oesophagus C. Stomach D. Sm
(7) Which simple substance is formed from the digested
A. Glucose B. Cellulose C. Fatty acid D. Amino acid
.) Where are the villi located ?
tie​

Answer 1

Answers:

3) $\large{ \boxed{ \bf{ \pink{Starch \: (A)}}}}$

➝ We ingest food through our mouth. Digestion of starch(carbohydrates) starts from Buccal cavity only, but it is by Salivary amylase(Ptyalin) present in Saliva.

4) $\large{ \boxed{ \bf{ \pink{Sweet \: (D)}}}}$

➝ The taste buds are found in the papillaes of tongue. They can detect different kind of taste prominently in specific parts of the tongue. Like sweet at the tip, Salt on the lateral sides, Sour on the interior lateral sides and bitter at the innermost part.

5) $\large{ \boxed{ \bf{ \pink{Protein \: (C)}}}}$

➝ In stomach, Digestion of proteins starts by the action of enzyme Pepsin which is activated by HCl from its inactive form. Here, Partial digestion of protein takes place. Mucous saves the lining of stomach from the harmful effect of HCl

6) $\large{ \boxed{ \bf{ \pink{Small \: intestine \: (D)}}}}$

➝ Finally, In the small Intestine, digestion is completed and absorbed into the bloodstream and transported to the cells. Here, the pancreatic enzymes, bile and Intestinal juice helps in the complete digestion of food.

7) Answer - Villi are small finger like projections on the wall of Small and Large Intestines which increase the surface area for the food and extra water & ions. They have blood vessels into which the digested food is absorbed into the bloodstream.

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Answer 2

$\large\bf{\underline{\purple{SOLUTION:-}}}$

3) Digestion of starch of food begins in buccal cavity .

$\bigstar\:\rm{\underline{\red{\boxed{A.\:Starch}}}}$

• The Buccal cavity or mouth consists of teeth, tongue and salivary glands .
• Further salivary glands present in the mouth helps in the chemical digestion of food with the help of enzymes .
• It contains enzymes known as salivary amylase which digest the starch present in food into sugar .
• We can say that the digestion of carbohydrate or starch begins in the mouth itself .

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4) Sweet taste can be detected by the tip of the tongue .

$\bigstar\:\rm{\underline{\orange{\boxed{D.\:Sweet}}}}$

• According to the map, we detect

1. Sweetness on the tip of our tongue .
2. Bitterness at the back of our tongue .
3. saltiness and sourness along the sides of our tongue .

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5) Partial digested of protein occurs in stomach .

$\bigstar\:\rm{\underline{\green{\boxed{C.\:Protein}}}}$

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6) $\bigstar\:\rm{\underline{\blue{\boxed{D.\:Small\:intestine}}}}$

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7) - Carbohydrates are digested and converted into monosaccharides like Glucose .

- Proteins are digested and converted into amino acids .

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$\checkmark\:\bf{\underline{\red{Where\:are\:the\:villi\:located\:?}}}$

Answer :-

• Villi are small finger like projections located in the walls of the small-intestine .

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