Question

what are the function of cell wall cytoplasm nucleus and vacuole in plant cell

Answer 1

1.cell wall : it is the outermost membrane of a plant cell and it gives support to the plant . it provides the structure to the plant . it acts as a protective coat for a plant . it is only found in plant cell. 2. cytoplasm : it is a dense liquid inside the cell and it is present between the cell membrane and nucleus . each organelles are present inside it and that's why it is responsible for all the metabolic activity inside the cell. 3 nucleus: it is the dense central spherical part of a plant cell and it is also called the control unit of cell as it controls every action in a cell. 4 vacuole : it is a large hollow part of a plant cell. it store the food for plants and also store waste materials of the cell. it is found in both plant and animal cell but it is in large size in plant cell. hope it helps..

Answer 2

function of Cell wall

The cell wall is the protective, semi-permeable outer layer of a plant cell. A major function of the cell wall is to give the cell strength and structure, and to filter molecules that pass in and out of the cell.

function of Cytoplasm

The jelly-like fluid that fills a cell is called cytoplasm. It is made up of mostly water and salt. Cytoplasm is present within the cell membrane of all cell types and contains all organelles and cell parts. Cytoplasm has various functions in the cell. 

Most of the important activities of the cell occur in the cytoplasm. Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity.

Cytoplasm is responsible for giving a cell its shape. It helps to fill out the cell and keeps organelles in their place. Without cytoplasm, the cell would be deflated and materials would not be able to pass easily from one organelle to another.

Cytosol is the part of the cytoplasm that does not contain organelles. Instead, cytosol is confined by the boundaries of a matrix which fills the part of the cell that does not contain organelles.

function of Nucleus

The nucleus is an organelle found in eukaryotic cells. Inside its fully-enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes. 


The nucleus is made up of a double membrane nuclear envelope that keeps the entire organelle encased, isolating its contents from the rest of the cell, and the nucleoskeleton which supports the cell as a whole. The nucleus maintains the security of the genes and controls the functions of the entire cell by regulating gene expression. This is why the nucleus is sometimes referred to as the control center, or the "brain," of the cell. 

Since large molecules cannot get inside the nucleus through the nuclear membrane, small holes called nuclear pores dot the surface area of the envelope. These pores regulate the transport of those molecules by carrier proteins embedded in the double layer of the membrane. Small molecules and ions are able to pass through the membrane freely, however.

The nucleus is the site for genetic transcription, while keeping it separated from the cytoplasm. This means gene regulation is taking place in eukaryotic cells that have a nucleus, but that this gene regulation isn't available to prokaryotes. That means the main function of the nucleus is to govern gene expression and facilitate DNA replication during the cell cycle. 

function of vacuole

Vacuoles - Storage Bins to the Cells

Vacuoles are storage bubbles found in cells. They are found in both animal and plant cells but are much larger in plant cells. Vacuoles might store food or any variety of nutrients a cell might need to survive. They can even store waste products so the rest of the cell is protected from contamination. Eventually, those waste products would be sent out of the cell. 

The structure of vacuoles is fairly simple. There is a membrane that surrounds a mass of fluid. In that fluid are nutrients or waste products. Plants may also use vacuoles to store water. Those tiny water bags help to support the plant. They are closely related to objects called vesicles that are found throughout the cell. 

In plant cells, the vacuoles are much larger than in animal cells. When a plant cell has stopped growing, there is usually one very large vacuole. Sometimes that vacuole can take up more than half of the cell's volume. The vacuole holds large amounts of water or food. Don't forge that vacuoles can also hold the plant waste products. Those waste products are slowly broken into small pieces that cannot hurt the cell. Vacuoles hold onto things that the cell might need, just like a backpack.

Helping with Support

Vacuoles also play an important role in plant structure. Plants use cell walls to provide support and surround cells. The size of that cell may still increase or decrease depending on how much water is present. Plant cells do not shrink because of changes in the amount of cytoplasm. Most of a plant cell's volume depends on the material in vacuoles. 

Those vacuoles gain and lose water depending on how much water is available to the plant. A drooping plant has lost much of its water and the vacuoles are shrinking. It still maintains its basic structure because of the cell walls. When the plant finds a new source of water, the vacuoles are refilled and the plant regains its structure.


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