A- About 30% of starch is hydrolyzed by saliv | vedclass

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Question

(A) Assertion $(A)$ is correct: In the buccal cavity,the chemical process of digestion is initiated by the hydrolytic action of the carbohydrate-split

Vedclass · Accepted Answer

$A$ and $R$ both are correct.

Vedclass · Answer

(A) Assertion $(A)$ is correct: In the buccal cavity,the chemical process of digestion is initiated by the hydrolytic action of the carbohydrate-splitting enzyme,the salivary amylase. About $30\%$ of starch is hydrolyzed here by this enzyme into a disaccharide—maltose. The optimum $pH$ for this enzyme is $6.8$.Reason $(R)$ is correct: The saliva secreted into the oral cavity contains electrolytes $(Na^+, K^+, Cl^-, HCO_3^-)$ and enzymes,salivary amylase and lysozyme. Lysozyme acts as an antibacterial agent that prevents infections.Conclusion: Both statements are correct,and the reason provides the necessary components of saliva that facilitate the process described in the assertion.

$(a)$ Crypts of Lieberkuhn	$(i)$ Pancreas
$(b)$ Glisson's Capsule	$(ii)$ Duodenum
$(c)$ Islets of Langerhans	$(iii)$ Small intestine
$(d)$ Brunner's Glands	$(iv)$ Liver

List-$I$	List-$II$
$(A)$ Hepatic lobule	$(i)$ Submucosal gland
$(B)$ Brunner's gland	$(ii)$ Base of villi
$(C)$ Crypts of Lieberkuhn	$(iii)$ Glisson's capsule
$(D)$ Sphincter of Oddi	$(iv)$ Gall bladder
	$(v)$ Hepato-pancreatic duct

$A-$ About $30\%$ of starch is hydrolyzed by salivary amylase (optimum $pH\, 6.8$) in the buccal cavity.
$R-$ The saliva secreted into the oral cavity contains electrolytes $(Na^+, K^+, Cl^-, HCO_3^-)$ and enzymes,salivary amylase and lysozyme.

Similar Questions

Match the following structures with their respective location in organs:
$(a)$ Crypts of Lieberkuhn $(i)$ Pancreas
$(b)$ Glisson's Capsule $(ii)$ Duodenum
$(c)$ Islets of Langerhans $(iii)$ Small intestine
$(d)$ Brunner's Glands $(iv)$ Liver

Select the correct option from the following:

What does heterotrophic nutrition include?

Describe the process of digestion occurring in the large intestine.

$X$ is a statement and $Y$ is the reason. Give your opinion of the following: $X -$ Absorption takes place only in the small intestine. $Y -$ Stomach secretes Trypsinogen.

Select the correct match.

List-$I$ List-$II$

$(A)$ Hepatic lobule $(i)$ Submucosal gland

$(B)$ Brunner's gland $(ii)$ Base of villi

$(C)$ Crypts of Lieberkuhn $(iii)$ Glisson's capsule

$(D)$ Sphincter of Oddi $(iv)$ Gall bladder

$(v)$ Hepato-pancreatic duct

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$A-$ About $30\%$ of starch is hydrolyzed by salivary amylase (optimum $pH\, 6.8$) in the buccal cavity.$R-$ The saliva secreted into the oral cavity contains electrolytes $(Na^+, K^+, Cl^-, HCO_3^-)$ and enzymes,salivary amylase and lysozyme.