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3 maj 2024 · The notes also explain the parts of a cell, like the outer layer called the plasma membrane, the jelly-like substance inside called cytoplasm, and the control center called the nucleus. By studying these notes, you’ll get a better idea of how cells function and why they are so important in biology.
Unicellular organisms are capable of (i) independent existence and (ii) performing the essential functions of life. Anything less than a complete structure of a cell does not ensure independent living. Hence, cell is the fundamental structural and functional unit of all living organisms.
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The cell wall is a rigid non-living structure that surrounds the plasma membrane. The cell wall is mostly found in plant and fungal cells that provide shape to the cell. It also protects the cell against mechanical damage or infection and also prevents the entry of unwanted macromolecules. Cell walls are important for cell-to-cell interaction ...
5 sie 2020 · Structure of cell wall. Cell wall is made up of 4 layers; Middle lamella, primary, secondary and tertiary wall; I) Middle Lamella. Cementing layer between the cells; It is made up of Ca & Mg pectates; II) Primary Cell Wall. Found in growing cell; It has high hemicelluloses & less cellulose content; III) Secondary Cell Wall. Found in Mature cell ...
From Class 11 Bio Ch 8 notes, you will learn that a rigid non-living structure comprises the outer covering for the plasma membrane of fungi and plants are known as the cell wall. The function of the cell wall is to give shape to the cell and to protect the cell from mechanical damage and infection.
4 gru 2023 · According to class 11 cell, cells are primarily of two types – Eukaryotic and Prokaryotic Cells. Prokaryotic Cell. The main features of the prokaryotic cell are mentioned below. Blue-green algae, mycoplasma and bacteria represent them.
