Question

You know that the shape, size, and functions of all eukaryotic cells vary, yet they all have three main functional regions, namely the plasma membrane, nucleus and cytoplasm. What is nucleus and cytoplasm together called as?

• A. nucleoplasm
• B. endoplasm
• C. vacuole
• D. protoplasm

Answer 1

The correct option is D

protoplasm

The correct option is option D :

The explanation for the correct option :

1. Protoplasm is commonly termed as the combined cytoplasm and nucleoplasm of the cell.
2. The cytoplasm is a dense, jelly-like substance inside the cell enclosed by the plasma membrane.
3. The cytoplasm contains all the cell organelles within it and also it nourishes the cell.
4. Thus, the nucleus and cytoplasm are together called protoplasm.

The explanation for the incorrect option :

Option A :

1. Nucleoplasm is the substance inside the nucleus.
2. Nucleoplasm nourishes the nucleus.

Option B :

1. Endoplasm is the inner dense part of the cytoplasm.
2. It has the function to give physical support, preventing collapsing, transporting molecules, etc.

Option C :

1. Vacuoles are membrane-bound cell organelles that are used for storage.
2. Vacuoles store food as well as the essential nutrients needed for cells.

Final answer: The nucleus and cytoplasm together are called protoplasm.