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Anonymous users2024-02-10After the plant cell wall is removed, --- protoplasts remain.
After treating plant cells with pectinase and cellulase, the cell wall can be completely removed, and the cytoplasm is encapsulated only by the cell membrane.
Protoplasts are made up of living matter. Protoplasts are formed by the differentiation of protoplasm, including cell membranes and intramembrane cytoplasm and other organelles with vital activity, and plant protoplasts include: nucleus, mitochondria, chloroplasts, vacuoles, endoplasmic reticulum and Golgi apparatus, etc.
Protoplasts, which are the main sites for various types of metabolism in cells, are an important part of cells. Protoplasts can be divided into three parts: plasma membrane, organelles, and cytomatrix.
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Anonymous users2024-02-09Protoplasm--- nucleus, membrane, cytoplasm.
The cell wall does not belong to the protoplasm, and the plant cell after the cell wall is removed is called protoplast, and the plant cell wall will not change under normal circumstances except for the cell wall.
Nucleus, mitochondria, chloroplasts, vacuoles, Golgi apparatus, etc
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Anonymous users2024-02-08Cytoplasm, mitochondria, chloroplasts, Golgi apparatus, ribosomes, vacuoles.
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Anonymous users2024-02-07Cytoplasm, vacuoles, nucleus, chloroplasts, mitochondria,
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Anonymous users2024-02-06Cell membrane Mitochondria Chloroplast Golgi apparatus Ribosomes Vacuole nucleus.
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Anonymous users2024-02-05Protoplast. Including cell membranes. Cytoplasmic matrix. Numerous organelles. Nucleus.
The cell wall can be removed by enzymatic hydrolysis.
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Anonymous users2024-02-04The cell wall is not peculiar to plants, both fungal and bacterial cells have a cell wall.
The cell wall is a thicker, tougher and slightly elastic structure located outside the cell membrane, which is composed of a slime complex, and some species also have a capsule composed of polysaccharides outside the wall, which plays a protective role. The capsule itself also acts as a nutrient for the cell and can be used by the cell when it is deficient.
Structure of the cell wall
The cell wall is divided into 3 layers, namely the intercellular layer (mesosphere), the primary wall, and the secondary wall. The intercellular layer holds adjacent cells together to form tissue. The primary wall is on both sides of the intercellular layer and is present in all plant cells.
The secondary wall is divided into three layers: outer (S1), middle (S2), and inner (S3), and sometimes one layer can appear in the inner layer.
With such thick walls, water and nutrients cannot penetrate. Some plants have nodules on their secondary walls, and they also differentiate into special structures, such as pores and nodules. The pores are the areas where material flows between cells, while the nodules are protrusions in the inner layers of the secondary walls.
Refer to the above content: Encyclopedia - Cell Wall.
Difference Between Cell Membrane and Cell Wall:
1. Only plants, bacteria, and fungi have cell walls, while animal cells do not have cell walls. >>>More
The main component of the plant cell wall >>>More
1. Maintain the shape of the cell, control the cell growth The cell wall increases the mechanical strength of the cell, and bears the turgoring pressure of the internal protoplasts due to the water absorption of vacuoles, so that the cell has a certain shape, which not only protects the protoplast, but also maintains the inherent morphology of organs and plants. In addition, the wall controls the growth of the cell because the premise for the cell to expand and elongate is for the cell wall to relax and irreversibly stretch. >>>More
The cell wall has changes, but its elasticity is worse than that of protoplasts, because it is composed of substances such as cellulose and pectin, so when there is a difference in the concentration of the inner and outer solutions, it does not change as much as the protoplast, so the plasma wall separation and recovery of the plasma wall is caused by the difference in the expansion and contraction ability of the two when they absorb water.
Animal cells do not have a cell wall, which is an important feature that distinguishes animal cells from plant, fungal, and bacterial cells. It is important to know that the cell wall is a layer of hard, thick walls on the periphery of plant, fungal and bacterial cells, and one of its functions is to maintain the morphology of the cell and enhance the mechanical strength of the cell. Because plants have a cell wall, they can maintain a relatively stable external morphology. >>>More