Plant cells differ from animal cells because of:

Choose the correct option regarding cell structure and components:

Which of the following structures contains enzymes?

Where does protein synthesis occur in animal cells?

What is common in mitochondria,chloroplast and nucleus?

Which of the following statements are correct?
$(i)$ In prokaryotic cells,a special membranous structure formed by the extension of the plasma membrane into the cell is known as polysome.
$(ii)$ The smooth endoplasmic reticulum is the major site for synthesis of glycoproteins.
$(iii)$ $RuBisCO$ is the most abundant protein in the whole biosphere.
$(iv)$ Mitochondria,chloroplasts,and peroxisomes are not considered as part of the endomembrane system.