Read the following statements and identify the correct ones regarding polysaccharides.
1. Polysaccharides are made of many sugars joined together .
2. Cellulose is a polysaccharide made of less than 10 monomeric units .
3. Polysaccharides are found as a part of the acid insoluble pellet.
4. In a polysaccharide chain, thee right end is called reducing end and the left end is called non-reducing end .

Options

A. All are correct
B. All except 2
C. Only 2 and 4
D. Only 2

Answer

To solve the question regarding the correct statements about polysaccharides, let's analyze each statement step by step.

### Step 1: Analyze Statement 1
**Statement 1:** Polysaccharides are made of many sugars joined together.

- **Explanation:** This statement is true. Polysaccharides are indeed long chains of monosaccharide units linked together by glycosidic bonds. Examples include starch, glycogen, and cellulose.

### Step 2: Analyze Statement 2
**Statement 2:** Cellulose is a polysaccharide made of less than 10 monomeric units.

- **Explanation:** This statement is false. Cellulose is a polysaccharide composed of many (typically hundreds to thousands) β-glucose monomeric units. Therefore, it cannot be classified as having less than 10 monomeric units.

### Step 3: Analyze Statement 3
**Statement 3:** Polysaccharides are found as a part of the acid insoluble pellet.

- **Explanation:** This statement is true. Polysaccharides, such as cellulose, are often found in the acid-insoluble fraction of plant materials. They do not dissolve in acid, which leads to their presence in the insoluble pellet after treatment.

### Step 4: Analyze Statement 4
**Statement 4:** In a polysaccharide chain, the right end is called the reducing end and the left end is called the non-reducing end.

- **Explanation:** This statement is true. In a polysaccharide chain, the reducing end is the end with a free anomeric carbon that can participate in redox reactions, while the non-reducing end does not have a free anomeric carbon.

### Conclusion
Based on the analysis:
- **Correct Statements:** 1, 3, and 4
- **Incorrect Statement:** 2

Thus, the correct answer is that all statements are correct except for the second one.

### Final Answer
The correct statements regarding polysaccharides are:
1. Polysaccharides are made of many sugars joined together.
3. Polysaccharides are found as a part of the acid insoluble pellet.
4. In a polysaccharide chain, the right end is called reducing end and the left end is called non-reducing end.

**The correct option is: All except the second.**

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