Home
Class 11
BIOLOGY
pH of gastric juice is...

pH of gastric juice is

A

2

B

4

C

6

D

8

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Gastric Juice**: Gastric juice is a digestive fluid produced in the stomach. It plays a crucial role in the digestion of food. 2. **Composition of Gastric Juice**: The primary component of gastric juice is hydrochloric acid (HCl), which is secreted by specialized cells in the stomach known as parietal cells or oxyntic cells. 3. **Acidity of Gastric Juice**: Due to the presence of hydrochloric acid, gastric juice is highly acidic. The acidity is essential for activating digestive enzymes and breaking down food. 4. **pH Scale**: The pH scale measures how acidic or basic a solution is, with lower values indicating higher acidity. A pH of 7 is neutral, while values below 7 indicate acidity. 5. **Determining the pH of Gastric Juice**: The typical pH of gastric juice ranges from 1.5 to 3.5, but it is commonly accepted that the average pH is around 2. 6. **Conclusion**: Therefore, the pH of gastric juice is approximately 2, which confirms that it is indeed acidic. ### Final Answer: The pH of gastric juice is **2**. ---

### Step-by-Step Solution: 1. **Understanding Gastric Juice**: Gastric juice is a digestive fluid produced in the stomach. It plays a crucial role in the digestion of food. 2. **Composition of Gastric Juice**: The primary component of gastric juice is hydrochloric acid (HCl), which is secreted by specialized cells in the stomach known as parietal cells or oxyntic cells. 3. **Acidity of Gastric Juice**: Due to the presence of hydrochloric acid, gastric juice is highly acidic. The acidity is essential for activating digestive enzymes and breaking down food. ...
Promotional Banner

Topper's Solved these Questions

  • DIGESTION AND ABSORPTION

    ICSE|Exercise REVIEW QUESTIONS ( II. FILL IN THE BLANKS )|10 Videos
  • DIGESTION AND ABSORPTION

    ICSE|Exercise REVIEW QUESTIONS ( III. WRITE WHETHER THE FOLLOWING STATEMENTS ARE TRUE OF FALSE )|5 Videos
  • DIGESTION AND ABSOROPTION

    ICSE|Exercise NCERT EXERCISES WITH ANSWER (DIFFERENTIATE BETWEEN)|8 Videos
  • ENZYMES

    ICSE|Exercise REVIEW QUESTIONS (LONG ANSWER TYPE QUESTIONS) |6 Videos

Similar Questions

Explore conceptually related problems

The pK_(a) of acteylsalicylic acid (aspirin) is 3.5 . The pH of gastric juice in human stomach is about 2-3 and the pH in the small intestine is about 8. Aspirin will be:

The HCI of gastric juice is produced by

Secretion of gastric juice is stopped by

Secretion of gastric juice is controlled by

Secretion of gastric juice is controlled by

Secretion of gastric juice is controlled by

Main function of HCl of gastric juice is

Study the statement given below and answer the question " Even though the contents of stomach are very acidic, the stomach usually does not cause damage to itself ". Identify this reasons (I to iv) given below which are responsible for the above statement. (i)The release of gastric juices is controlled to avoid too high a concentration. (ii)The stomach lining is quick to repair itself (iii)Mucus forms a thick protective coating for the stomach (iv)Food and water dilute the gastric juices .

[A]: Smoking stimulates secretion of gastric juice in stomach even when stomach is empty. [R]: It is aimed at quickening the digestion of food when taken

The pH of the gastric juices released during digestion is