Question

Define the following:-

Cell
Plasma Membrane
Osmosis
Cancer
Prokaryote
Eukaryote
Nucleus
Chromosome

Answer 1

Answer:-

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1. Cell:- A cell is the smallest structural and functional unit of life.
2. Plasma Membrane:- A thin flexible outermost boundary covering the cell.
3. Osmosis:- Movement of solvent/water from a region of high concentration to a region of low concentration through a semi-premeable membrane.
4. Cancer:- Uncontrolled division of cells results in formation of a large mass of cells are formed which is called as Tumour, and the disease is known as cancer.
5. Prokaryote:- Organism lacking nuclear membrane and membrane-bound organelles in their cell.
6. Eukaryote:- Organisms having well defined nucleus enclosed in a nuclear envelope and one or more membrane-bound organelles in their cells.
7. Nucleus:- The nucleus is a spherical or oval structure known as the 'brain of the cell'. It is covered by a nuclear membrane that separates it from cytoplasm. The nucleus contains another smaller, round structure called nucleolus.
8. Chromosome:- Thread-like, stainable visible at cell division and containing hereditary information in form of genes.

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Answer 2

Answer:

Cell:-Cell is defined as the smallest, basic unit of life that is responsible for all of life's Processes. Cells are the structural, functional and biological unit of all living beings.

Plasma membrane:- The plasma membrane is the membrane found in all cells that separates the interior of the cell from the outside environment.

Osmosis:- Osmosis is the movement of a solvent across a semipermeable membrane towards a higher concentrations of soluble.

Cancer:- Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body's normal control mechanism stops working. old cells do not die and instead growth out of control, forming new, abnormal cells.

Prokaryote:- Prokaryote are any organism that lacks a distinct nucleus and other Organelles due to the absence of internal membranes.

Eukaryote:- Eukaryote any cell or organism that Processes a clearly defined nucleus.

Nucleus:- The nucleus control and regulates the activities of the cell and carries the genes, structures that contain the hereditary information.

Chromosome:- In the nucleus of each cells, the DNA molecules is packaged into thread-like structure called Chromosomes.