class 9 Biology please help me to
Answers
Explanation:
Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall.
Red blood cells do not have a nucleus on maturity. WBCs are characterized by the presence of a large central nucleus. Due to the presence of haemoglobin, these cells appear red in colour. These cells are colourless, as they do not have any pigment
Parenchyma Cells
These are the living plant cells known to repair and heal and also to store food, forms a thin layer known as primary cell wall of the plant. They occur as a continuous mass, widely distributed from stems, roots to leaves and fruits
Generates other special cells and tissues
Isodiametric in shape, having thin cell walls hence experience pressure and force around the cells, therefore, cells increase its volume capacity to equalize all-over pressure on the cells
Cells composed of cellulose and hemicellulose
Show abundance in cell organelles such as – Golgi bodies, ribosomes, Chloroplast, Endoplasmic Reticulum, and other constituents such as pigments, fats, starch, proteins.
Collenchyma Cells
Known to render mechanical support to plants by protecting the delicate inner structure of plants
They have thick cell walls composed of cellulose, hemicellulose and pectin and are living cells. Cells comprise of prominent nucleus and organelles
It carries out storage of food, checks for the tearing of leaves, carry out photosynthesis. They also push the organs of plants thus aiding in growth and elongation
Meristematic tissues in plants consist of a mass of undifferentiated cells whose main function is to participate in plant growth.
Permanent tissues, on the other hand, are differentiated tissues, carrying out dedicated functions.
Mitochondria and chloroplast are organelles found in a plant cell. However, chloroplast is absent in an animal but mitochondria is found in both. Mitochondria generates energy for the cell in the form of ATP using oxygen and nutrients. Chloroplast is the site for photosynthesis in a plant cell.
1- A plant cell contains large singular vacolue that is used for storage and maintaining shape of the cell . In contrast, animal cell have smaller vacolue.
Plant cell have cell walls whereas Animal cell doesn't have.
Plant cell tend to be larger and have regular shape but Animal cell are smaller and their shape is random ..........
2- RBC don't have nucleus on maturity and it carries oxiginated blood to body expels co2 through alveoli in lungs .
whereas WBC helps in fighting viruses and pathogens and they are more In number than RBC ...... .........
3- Mitrochondria and chloroplast are both organelle found in plant cell . whereas chloroplast are absent in animals but mitrochondria is found in both ..
mitrochondria generate energy in form of ATP whereas chloroplast is sight for photosynthesis in plant cell........ ......
4- meristematic tissue in plants consists of mass of undifferentiated cells whose main function is to participate in plant growth, permanent tissue on other hand are differentiated tissue carrying out dedicated function .........
hopefully it will work........