13. Which one of the following is present in a bacterial cell? (A) 28S rRNA (B) 70S ribosome (C) Chitinous cell wall (D) Histones Bacterial Cell Structure: Presence of 70S […]
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CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES (62)
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
Electron Transport Chain in Mitochondria Explained
12. Which organelle in a eukaryotic cell is the site of electron transport chain? (A) Endoplasmic reticulum (B) Golgi apparatus (C) Mitochondrion (D) Peroxisome Electron Transport Chain in Eukaryotic Cells: […]
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
Apoptosis Morphological Changes Explained
11. The characteristic morphological change(s) in cells undergoing apoptosis is/are (A) Formation of blebs on cell surface (B) Swelling and bursting of cells (C) Collapse of the cytoskeleton (D) Condensation […]
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
Telophase in Mitosis Explained
10. Which of the following statement(s) is/are correct about telophase? (A) Daughter chromosomes are yet to form (B) New nuclear envelope starts to reassemble (C) Division of cytoplasm begins (D) […]
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
Solute Transport Across Membranes Explained
9. Which one of the following statements is correct about solute transport across membranes? (A) Passive transporters decrease the activation energy and does not facilitate the transport of polar compounds […]
![8. Determine the correctness or otherwise of the following Assertion [a] and Reason [r]. Assertion [a]: Nitric oxide is involved in transient paracrine and autocrine signaling. Reason [r]: Nitric oxide is highly reactive, with a lifetime of few seconds, yet can diffuse freely across membranes. (A) Both [a] and [r] are true and [r] is the correct reason for [a] (B) Both [a] and [r] are true but [r] is not the correct reason for [a] (C) Both [a] and [r] are false (D) Only [a] is true but [r] is false](https://www.letstalkacademy.com/wp-content/uploads/2026/06/1-8.jpg)
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
Nitric Oxide (NO) Signaling Explained
8. Determine the correctness or otherwise of the following Assertion [a] and Reason [r]. Assertion [a]: Nitric oxide is involved in transient paracrine and autocrine signaling. Reason [r]: Nitric oxide […]
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
G1 Checkpoint of Cell Cycle Explained
7. Which one of the following statements about the G1 checkpoint of eukaryotic cell division cycle is INCORRECT? (A) Cell assures the existence of favorable extracellular environment (B) Cell assures […]
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
Vinblastine Inhibits Microtubule Polymerization
6. Which one of the following compounds inhibits the polymerization of tubulin to microtubules in animal cells? (A) ATP (B) Taxol (C) Thymosin (D) Vinblastine Vinblastine and Microtubule Polymerization Introduction […]
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
Archaeal Cell Membrane Lipids Explained
5. Archaeal cell membranes contain lipids that are (A) Ether linked (B) Ester linked (C) Branched alkyl chain (D) Linear alkyl chain Archaeal Cell Membrane Lipids: Ether Linkages, Branched Alkyl […]
IIT JAM Biotechnology Previous Year Question paper Topic Cell Biology
cAMP as a Second Messenger – Cell Signaling Pathway
4. Cyclic AMP (cAMP) acts as a second messenger for which of the following primary signaling molecule(s)? (A) Retinoic acid (B) Prostaglandins (C) Cortisol (D) Epinephrine cAMP as a Second […]
