A) Cell wall
B) Lecithin
C) Cell vacuole
D) Cell membrane of woody plants
Correct Answer: B
Solution :
Lecithin (phosphotidyl-choline) is a phosphoglyceride containing the amino alcohol chlorine esterified to the phosphate group. It is the most abundant animal phospholipid and being a component of plasma membrane and also occurs in higher plants. Cell wall is a rigid outer layer that surrounds the plasma membrane of plant, fungal, algal and bacterial cells. It protects and/or given shape to a cell and in herbaceous plants provides mechanical support to the plant body. Cell vacuoles are liquid filled cavities and are mainly present in plant cells. They are surrounded by a thin membrane called tonoplast. It acts as a sub-cellular storage organ of useful metabolites and maintains turgidity of the cell.
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