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Discovery and Origin Endoplasmic reticulum (also called ergastoplasm) was discovered by Porter et al. (1945) and the term ER was given by Porter (1953). According to different views, ER originates either from invagination of the plasma membrane or fro…

Lysosomes MCQ Quiz 1. Lysosomes are also known as: A. Power house of cell B. Suicide bags of cell C. Brain of cell D. Protein factory Show Answer Correct Answer: B. Suicide bags of cell 2. Lysosomes were discovered by: A. Wa…

Lysosome are important cellular organelles commonly known as “suicide bags” or “disposal units” of the cell. They play a crucial role in intracellular digestion and cellular defense mechanisms. Discovery and Structure Lysosomes were discovered by Chr…

1. Temperature and duration in Flash method of Pasteurization is A) 62.9°C, 30 min B) 71.6°C, 30 min C) 71.6°C, 15 seconds D) 62.9°C, 15 seconds Show Answer ✅ Correct answer is C. 71.6°C for 15 seconds (HTST pasteurization). 2. Con…

MCQ Quiz Q1. Which of the following is not a physical agent of sterilization ? A. Sunlight B. Radiation C. Dyes D. Drying Show Answer ✅ Answer: C. Dyes Q2. Bactericidal agents A. Kill bacteria B. Prevent bacterial multipli…