MODEL PAPER 6 — BIOLOGY STD 11 Science — Question

$(i)$ The endomembrane system includes mitochondria, chloroplast and peroxisomes.

$(ii)$ Smooth endoplasmic reticulum is the major site for synthesis of lipid.

$(iii)$ Rough endoplasmic reticulum is actively involved in protein synthesis.

$(iv)$ Mitochondrial matrix possesses single circular $DNA$, a few $RNA$ and $80\; s$ ribosomes.

Of the above statements.