CBSE Class 11 Biology Cell The Unit Of Life Quiz

A cell organelle containing hydrolytic enzymes is

• lysosome

• microsome

• mesosome

• ribosome

Mitochondria and chloroplast are

• (B) is true but (A) is false

• semi-autonomous organelles

• formed by division of pre-existing organelles and they contain DNA but lack protein synthesising machinery

• both (A) and (B) are false

Microtubules are the constituents of

• cilia, flagella and peroxisomes

• spindle fibres, centrioles and cilia

• centrioles, spindle fibres and chromatin

• centrosome, nucleosome and centrioles

Which one of the following cell organelles is enclosed by a single membrane?

• Lysosomes

• Nuclei

• Mitochondria

• Chloroplasts

Cellular organelles with membranes are

• lysosomes, Golgi apparatus and mitochondria

• endoplasmic reticulum, ribosomes and nuclei

• chromosomes, ribosomes and endoplasmic reticulum

• nuclei, ribosomes and mitochondria

Which of the following are not membrane bound?

• Lysosomes

• Mesosomes

• Vacuoles

• Ribosomes

DNA is not present in

• nucleus

• mitochondria

• ribosomes

• chloroplast

The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are

• stroma lamellae

• grana

• cristae

• stroma

Select the correct matching in the following pairs.

• Smooth ER – Oxidation of phospholipids

• Rough ER – Synthesis of glycogen

• Smooth ER – Synthesis of lipids

• Rough ER – Oxidation of fatty acids

The chromosomes in which centromere is situated close to one end are

• telocentric

• sub-metacentric

• metacentric

• acrocentric