Cell: The Unit of Life - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of organelle function, membrane models, and cell structures.
Cell Cycle and Cell Division - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of mitosis, meiosis, and crossing over.
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Practice questions testing deep understanding of proteins, enzymes, carbohydrates, and nucleic acids.
Q1. Enzymes are highly specific biological catalysts. If you expose a human digestive enzyme (like pepsin) to a temperature of 80°C, it completely permanently loses its ability to digest proteins. Explain the biochemical change that occurred to the enzyme at this temperature.
Q2. Cellulose and Starch are both polysaccharides made entirely of glucose monomers. Why can humans easily digest potatoes (starch) to get energy, but cannot extract any energy from eating grass or paper (cellulose)?
Q3. Assertion (A): DNA contains the nitrogenous base Thymine, while RNA contains Uracil instead. Reason (R): Uracil is a much more stable molecule than Thymine, allowing RNA to last for decades inside the cell without degrading.
/Class-11/Competency-Based-Questions/3.2_Biomolecules_CBQ.mdxCell: The Unit of Life - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of organelle function, membrane models, and cell structures.
Cell Cycle and Cell Division - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of mitosis, meiosis, and crossing over.