Question

What do you mean by cell? What are the parts of cell?

need well explained answer

Answer 1

CELL

It is the basic functional and structural/fundamental unit of all living organisms/things. The primary thing by which a living thing is made up of.  

Cells are also several types of different living organisms.

The living being is figured on the basis of the number of cells.

1. Unicellular organisms  - The organisms that are made up of one single cell. Examples - Amoeba, Euglena, Paramoecium.
2. Multicellular organisms  - The organisms that are made up of one or more cells. Examples - Human beings, birds, animals.

• The cell was discovered by a scientist named 'Robert hook'. He discovered the cell in the year 1665. He observed the thin slices of the cork which was acquired from the bark of a tree. He observed the cell of the cork through his self-discovered microscope.

$\boxed{\bf Parts\ of\ the\ cell-}$

• Cell Membrane -

Every living cell is surrounded by a cell membrane. The other name of this membrane is 'Plasma Membrane'. It used to control the entry and exit of different elements according to the cell requirement.

Also, some cells have a rigid outer covering 'Cell wall'. Such as plants, bacteria, fungi, etc. It also provides protection to the cell against several harmful substances from the outer environment. The cell wall also gives a definite shape to the cell. It also gives support to the cell.

• Cytoplasm -

The cell membrane surrounds the inner jelly-like things which are called 'Cytoplasm'. It acts as a base substance inside the cell so that different activities can be performed. The material by which it is made up of is - a basically large amount of water, carbohydrates, fates, various minerals, proteins, and vitamins.

• Nucleus -

As alike brain, it controls all the activities inside the cell. The nucleus is the most essential part of the cell. the nucleus is surrounded by a nuclear membrane. nucleoplasm - The protoplasm of the nucleus. It has chromatin which is a thread-like network.

• Cell organelles -  

⇒ Plastids - It provides many different types of pigments that used to provide different colours to the cell. For example - The green colour plastids in plants are called chloroplasts(They used to synthesis food for the plant in the presence of sunlight - Process is called Photosynthesis). The plants also have colourless plastids which are called leucoplastids. Leucoplastids provide space to store oils, starch, proteins, etc.

⇒ Mitochondria - It is the powerhouse of the cell. They are responsible for the generation of energy for the cell for different activities to be performed.  

⇒ Endoplasmic Reticulum - It is a network of membranes which used o provide channels for transport for the materials in the cells. Endoplasmic Reticulum is of two types - 1. Rough Endoplasmic Reticulum(It has a rough appearance as it is stunned with ribosomes) and 2. Smooth Endoplasmic Reticulum(It is smooth as it does not have attached ribosomes. It helps in the synthesis of fats).

⇒ Golgi complex -

They are the sac-like construction that is stacked one above the other. they used to store the materials that are generated by the cell by different activities.

⇒ Vacuoles -

The empty space in the cytoplasm. It in all cells it's not empty. Like in amoeba, the vacuole is used to store food for further digestion process. In-plant cell the vacuole stores excess of water and it is large in plants cell.

⇒ Ribosomes -

Ribosomes are small granules that are present in the cytoplasm and also on the rough Endoplasmic reticulum. They are used in protein synthesis.

Answer 2

We know that every living being is made of up basic unit called cell.

it is the basic unit of living organisms.

parts of cell

cell wall (in some it is absent) like in animals.

cell membrane (present in all)

nucleus is the main commander

cytoplasm

and following with organelles like mitochondria, ER, Golgi complex, vacuoles