Question

Draw a plant cell and label the parts which
(a) determines the function and development of the cell(b) packages materials coming from the endoplasmic reticulum(c) provides resistance to microbes to withstand hypotonic external media without bursting(d) is site for many biochemical reactions necessary to sustain life.(e) is a fluid contained inside the nucleus please answer as soon as possible

Answer 1

   The Cell Wall

It is a rigid layer which is composed of cellulose, glycoproteins, lignin, pectin, and hemicellulose. It is located outside the cell membrane. It comprises proteins, polysaccharides, and cellulose. The primary function of the cell wall is to protect and provide structural support to the cell. The plant cell wall is also involved in protecting the cell against mechanical stress and to provide form and structure to the cell. It also filters the molecules passing into and outside the cell.

The formation of the cell wall is guided by microtubules. It consists of three layers, namely, primary, secondary and the middle lamella. The primary cell wall is formed by cellulose laid down by enzymes.

   Cell membrane

It is the semi-permeable membrane that is present within the cell wall. It is composed of a thin layer of protein and fat. The cell membrane plays an important role in regulating the entry and exit of specific substances within the cell. For instance, cell membrane keeps toxins from entering inside, while nutrients and essential minerals are transported across.

   Nucleus

The nucleus is a membrane-bound structure that is present only in eukaryotic cells. The vital function of a nucleus is to store DNA or hereditary information required for cell division, metabolism, and growth.

   Nucleolus: It manufactures cell’s protein-producing structures and ribosomes.

   Nucleopore: Nuclear membrane is perforated with holes called nucleopore that allows proteins and nucleic acids.

   Plastids

They are membrane-bound organelles that have their own DNA. They are necessary to store starch, to carry out the process of photosynthesis. It is also used in the synthesis of many molecules which form the cellular building blocks. Some of the vital types of plastids and their functions are stated below:

   Leucoplasts

They are found in non-photosynthetic tissues of plants. They are used for the storage of protein, lip