Practice Questions

TLS Online TPP Program

#Question id: 1413

Which of the following is a feature that defines a cell dying in response to tissue damage (necrosis)?

#Biochemistry

Mild convolution, Chromatin compaction and margination.
Condensation of cytoplasm.
phagocytosis of the dying cell by another cell.
creates holes in the plasma membrane, causing leakage of intracellular contents.

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#Question id: 37835

#Plant Biotechnology

#Question id: 37836

#Plant Biotechnology

Column A	Column B
1. Dry Heat	A. 121 °C at 15 PSI for 15–20 min
2. Autoclaving	B. 0.45 μm pore size membrane
3. Filter Sterilization	C. 160–180°C for 3 hours
4. Laminar Air Flow	D. HEPA filter (removes particles > 0.3 μm)

#Question id: 37837

#Plant Biotechnology

Column A (Method)	Column B (Material to Sterilize)
1. Surface Sterilization	A. Heat labile growth regulators (GA, Zeatin)
2. Filter Sterilization	B. Glassware and Teflon plastic ware
3. Dry Heat	C. Plant materials (explants, ovules)
4. Wiping with 70% Ethanol	D. Hands of operator and cabinet platform

#Question id: 37838

#Plant Biotechnology

Column A (Process)	Column B (Chemical/Agent Used)
1. Surface Sterilization	A. 95% Alcohol (followed by flaming)
2. Flame Sterilization	B. Sodium Hypochlorite / Mercuric Chloride
3. Cleaning Laminar Platform	C. 70% Ethyl Alcohol
4. Air Filtration	D. HEPA (High Efficiency Particulate Air)

#Question id: 37839

#Plant Biotechnology

Column A	Column B
1. HEPA Filter	A. Used for heat-labile vitamins & enzymes
2. Autoclave	B. Filters out particles > 0.3 µm
3. Membrane Filter (0.45 μm)	C. Sterilizes culture vessels using steam pressure
4. HgCl₂ (Mercuric Chloride)	D. Agent used for surface sterilization of explants

#Question id: 37840

#Plant Biotechnology