Plz answer them

Dear student,Q9=(a)Cell wall performs various functions like====== Structural support to the cell... Protection from external environment.. Checks entry of various substances entering and leaving the cell... Maintaining the shape of the cell........(b&q10)When ribosomes get attached to the surface of smooth endoplasmic reticulum, it becomes rough endoplasmic reticulum..... Functions of smooth endoplasmic reticulum:= Smooth ER synthesizes fats and lipids. It also takes part in the metabolism of carbohydrates. It actively participates in drug detoxification. It maintains the calcium ion concentration in the cytosol........... Functions of rough endoplasmic reticulum:= Most of the lysosomal proteins are produced in the rough ER. It transports proteins to various destinations like the plasma membrane. This is the major site of glycosylation (addition of carbohydrates in proteins)...... hope this helps,Regards.

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