PART - 2 - Unit V : CH - 19 Chemical Coordination and Integration — BIOLOGY STD 11 Science — Question

$(i)$ The endomembrane system includes plasma membrane, ER, Golgi complex, lysosomes and vacuoles.

$(ii)$ ER helps in the transport of substances, synthesis of proteins, lipoproteins and glycogen.

$(iii)$ Ribosomes are involved in protein synthesis.

$(iv)$ Mitochondria help in oxidative phosphorylation and generation of $ATP$.

$R$ - Cellulose is important component of plant cell wall