Question

Fill in the blanks.
-------- is the living matter of the cell.
A. Mitochondria
B. Protoplasm
C. Nucleus
D. Ribosome

Answer 1

Hint: Huxley proposed ‘the physical basis of life’ theory. The protoplasmic theory given by him states about the living matter of the cell. It occurs in all the life processing processes. All the organelles in the cell do not have its living matter except one.

Complete solution:
A cell can perform all the functions required to make life possible. A cell is the unit of life. It has many organelles in it which have divided the work among themselves. The correct working of each of them is required for an ideal body functioning.

Let us learn the functions of the organelles given in the question.
> Option A- Mitochondria: It is called the powerhouse of the cell as it produces the maximum energy required by our body to function. It carries out all the biochemical reactions. It stores the energy in the form of ATP.
> Option B- Protoplasm: The colourless material of the cell which has nucleus, cytoplasm and other organelles constitute the protoplasm. It is the living matter of the cell. It has the main function of controlling the working of the cell. It has genetic material.
> Option C- Nucleus: It is the double membraned organelle present in eukaryotes whose main function is to organize the genetic material. It coordinates the cell division and protein synthesis process.
> Option D- Ribosome: They are made up of proteins and RNA. They have two subunits. Their basic function is to produce proteins. They float in the cytoplasm of the cell and are attached to the endoplasmic reticulum.

So from these basic functions, we can calculate the answer to our question.
That is, option B- Protoplasm.

Note: Cell is the basic building block of living things that performs all the functions from the structure to the respiration. Cells are made of proteins. Groups of cells form tissue. Red blood cells carry oxygen throughout the body. Motor neurons are the longest of all the cells in our body.