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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Which one does help the plant cells to remain turgid?

    Question: Which one does help the plant cells to remain turgid?

    Options:

    Ribosomes
    Vacuoles
    Mitochondria
    Chloroplast

    📌Concept:
    When a cell is immersed in water, then water enters into the cell because the osmotic pressure of the cell sap is higher and the cell becomes turgid.
    The cell content press upon the wall or develop a pressure against the cell wall which is called turgor pressure

    ✅Explanation:
    Vacuole 
    These are the membrane-bound cell organelle found in the cytoplasm. It stores water, sap, excretory products that are not useful for the cells.
    These are bound by a single membrane called tonoplast. In plants, they acquire about 90% of the area.
    Vacuoles provide turgidity and rigidity to the plant cell, as they are full of cell sap.
    Many life-sustaining substances, like amino acids, sugars, various organic acids, and some proteins, are stored in vacuoles.

    🔴Additional Information::
    Ribosomes are membranous granular structures present in the cytoplasm.
    They were first observed under an electron microscope as dense particles by George Palade in the year 1953.
    Ribosomes are the site for protein synthesis so they are also called the ''protein factory'' of the cell.
    Mitochondria is is a double-layered cell organelle, in which the outer layer is porous and the inner layer is folded upon itself is known to be cristae.
    The number of mitochondria in a single cell may be up to 50 to 5000.
    The chloroplast is the green plastid present in the aerial parts like the leaves of the plant. They contain the pigments required for photosynthesis in the thylakoid region.

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