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The nucleus is a significant organelle f...

The nucleus is a significant organelle found in the cell. Read the following statements about the nucleus and select the option that correctly determines the number of false statements.
(i) The nuclear envelope consists of two parallel membranes having space between them called pericentriolar space.
(ii) The outer membrane of the nucleus usually remains continuous with the Golgi apparatus.
(iii) The nuclear matrix or the nucleoplasm contains nucleolus and chromatin.
(iv) Larger and more numerous nucleoli are present in cells actively carrying out lipid synthesis

A

One

B

Two

C

Three

D

Four

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the statements about the nucleus, we will analyze each statement one by one to determine whether they are true or false. ### Step-by-Step Solution: **Step 1: Analyze Statement (i)** - Statement: "The nuclear envelope consists of two parallel membranes having space between them called pericentriolar space." - Analysis: The nuclear envelope does consist of two membranes (inner and outer), but the space between them is called the perinuclear space, not pericentriolar space. - Conclusion: This statement is **false**. **Step 2: Analyze Statement (ii)** - Statement: "The outer membrane of the nucleus usually remains continuous with the Golgi apparatus." - Analysis: The outer membrane of the nucleus is actually continuous with the endoplasmic reticulum (ER), not the Golgi apparatus. - Conclusion: This statement is **false**. **Step 3: Analyze Statement (iii)** - Statement: "The nuclear matrix or the nucleoplasm contains nucleolus and chromatin." - Analysis: The nucleoplasm (or nuclear matrix) indeed contains the nucleolus and chromatin. This statement is accurate. - Conclusion: This statement is **true**. **Step 4: Analyze Statement (iv)** - Statement: "Larger and more numerous nucleoli are present in cells actively carrying out lipid synthesis." - Analysis: Larger and more numerous nucleoli are typically found in cells that are actively synthesizing proteins, not lipids. - Conclusion: This statement is **false**. ### Summary of Findings: - Total false statements: 3 (Statements i, ii, and iv) - Total true statements: 1 (Statement iii) ### Final Answer: The number of false statements is **3**. ---
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