Role of HCl

Q.

Name the acid present in the stomach, what is its role?

Q.

Describe the process of digestion of proteins in the stomach and small intestine.

Q.

(a) What is the role of hydrochloric acid in our stomach?
(b) What is the function of enzymes in the human digestive system?

Q.

Identify the steps (denoted by numerals) in physiology of digestion in stomach.

i).Food $\stackrel{HCl}{\underset{KillsBacteria}{⟶}}$ Chyme

ii).Pepsinogen Prorennin $\stackrel{HCl}{\underset{Activation}{⟶}}$ Pepsin Rennin

iii).Proteins $\stackrel{Pepsin}{⟶}$ Proteases Peptones

iv).Milk Casein $\stackrel{Rennin}{⟶}$Para casein $\stackrel{Calcium}{⟶}$ Calcium paracaseinate

1. i). Acidification ii). Activation by HCl iii). Digestion iv). Digestion of Milk in infants
2. i). Deactivation ii). Acidification iii). Activation by HCl iv). Digestion
3. i). Activation by HCl ii). Digestion iii). Deactivation iv). Acidification
4. i). Digestion ii). Deactivation iii). Acidification iv). Activation by HCl

Q.

Evaluate : $=7\frac{3}{5}-1\frac{2}{3}-1\frac{1}{15}$.

Q. Process of digestion

Q.

Question 6
The inner lining of the stomach is protected by one of the following from hydrochloric acid. Choose the correct one.

(a) Pepsin
(b) Mucus
(c) Salivary amylase
(d) Bile

Q. Separation of amino and carboxylic groups from an amino acid is

1. Amination
2. Lysis
3. Digestion
4. Deamination

Q.

evaluate: $5\frac{3}{4}$$-$$1\frac{3}{5}$ .

Q.

Fill in the blanks:

$2\frac{1}{5}-\_\_\_=1\frac{2}{5}$

Q. Which among the following protects the lining of the stomach from hydrochloric acid?

1. Pepsin
2. Mucus
3. Salivary amylase
4. Bile

Q. Digestion is brought about by ______ .

1. enzymes
2. hormones
3. water
4. mucus

Q.

Why are enzymes in the body always active even when there is no food in the stomach

Q. What will happen if mucus is not secreted by the gastric glands?

Q. Which of the following is/are the function(s) of the acid produced in the stomach?

1. Activation of inactive pepsinogen
2. Activation of inactive pepsin
3. Breakdown of complex lipids
4. Protection from microorganisms

Q. Assertion :Enzymes application in industry is enhanced by its immobilization. Reason: Immobilization provides protection to enzymes without affecting their activity.

1. Both the assertion and the reason are true and the reason is a correct explanation of the assertion.
2. Both the assertion and reason are true but the reason is not a correct explanation of the assertion.
3. The assertion is true but the reason is false.
4. Both the assertion and reason are false.