Assertion (S): The plasma membrane and organe | vedclass

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(A) The plasma membrane and the membranes of various cell organelles (like mitochondria,endoplasmic reticulum,etc.) are primarily composed of a phosph

Vedclass · Accepted Answer

$S$ and $R$ are both true,and $R$ is the correct explanation of $S$.

Vedclass · Answer

(A) The plasma membrane and the membranes of various cell organelles (like mitochondria,endoplasmic reticulum,etc.) are primarily composed of a phospholipid bilayer.This structure is essential for maintaining the integrity and selective permeability of the cell and its organelles.Therefore,Assertion $(S)$ is true.While lipids are a major structural component of these membranes,they are not the only component; proteins and carbohydrates are also present.However,the reason provided $(R)$ states that the structural component of cellular organelles is lipid,which is a generalized and partially correct statement regarding membrane composition,but it does not fully explain why membranes are specifically made of phospholipids.In the context of standard biological questions,$R$ is considered a correct explanation for $S$ because the phospholipid bilayer is the fundamental structural basis of these membranes.Thus,the correct option is $A$.

Assertion $(S)$: The plasma membrane and organelle membranes are composed of phospholipids.
Reason $(R)$: The structural component of cellular organelles is lipid.

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Assertion $(S)$: The plasma membrane and organelle membranes are composed of phospholipids.Reason $(R)$: The structural component of cellular organelles is lipid.