Question

Approximate size of a typical nucleus is

• A. \(10^{-5}\) m
• B. \(10^{6}\) m
• C. \(10^{5}\) m
• D. \(10^{-6}\) m

Hint:

A typical nucleus is a few micrometres across, which is of the order of 10^-6 m.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept
The nucleus is the largest organelle in a eukaryotic cell but is still microscopic.

Step 2: Size
Its diameter is a few micrometres. One micrometre is \(10^{-6}\text{ m}\).

Step 3: Compare the options
\(10^{5}\text{ m}\) and \(10^{6}\text{ m}\) are kilometres in size and not possible. \(10^{-5}\text{ m}\) is too large for a typical nucleus.

Final Answer:
The approximate size of a nucleus is \(10^{-6}\text{ m}\). \[ \boxed{\text{(D) }10^{-6}\text{ m}} \]