Class 11 Biology Quiz

What is the role of the rough endoplasmic reticulum?

• Lipid synthesis

• Detoxification

• Protein synthesis

• ATP production

Which process involves the movement of water across a semipermeable membrane?

• Osmosis

• Diffusion

• Active transport

• Endocytosis

Which type of RNA carries genetic information from DNA to the ribosome?

• rRNA

• tRNA

• mRNA

• siRNA

What is the main function of the cell wall in bacteria?

• Energy production

• Genetic material storage

• Protection and structural support

• Protein synthesis

Which enzyme is responsible for synthesizing DNA during replication?

• DNA polymerase

• RNA polymerase

• Ligase

• Helicase

In which organelle does photosynthesis take place?

• Mitochondrion

• Chloroplast

• Nucleus

• Lysosome

Which phase of mitosis is characterized by the separation of sister chromatids?

• Prophase

• Metaphase

• Anaphase

• Telophase

Which structure is involved in the formation of spindle fibers during cell division?

• Centrioles

• Mitochondria

• Ribosomes

• Lysosomes

What type of bond holds the two strands of DNA together?

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

• Disulfide bonds

Which of the following processes involves the engulfing of solid particles by the cell?

• Pinocytosis

• Phagocytosis

• Exocytosis

• Osmosis