MCQs Biology-25 Posted on December 2, 2025December 2, 2025Author agropublishers 0 MCQs Biology-25 1. Integrated Farming System primarily aims to Promote monocropping Maximize livestock population Increase use of chemical fertilizers Optimize resource utilization and sustainability 2. The Warburg effect describes ___________ Reduced photosynthesis with high O₂ Enhanced chlorophyll synthesis Reduced photosynthesis with high CO₂ Increased respiration at night 3. Photorespiration increases when ___________ O₂ is low CO₂ is high Temperature is high Light is low 4. Rubisco catalyzes a crucial step of which reaction? CO₂ reduction ATP synthesis NADP⁺ reduction CO₂ fixation 5. The movement of water molecules from a region of high concentration to an area of low concentration across a semipermeable membrane is called _______ Diffusion Osmosis Active transport Filtration 6. The Latin name humans, ie., Homo sapiens consists of which taxonomic ranks? Genus & Class Genus & Family Family & Order Genus & Species 7. The key product of light reactions include ________ Glucose Acetyl-CoA Pyruvate ATP and NADPH 8. In humans, the organ that produces insulin is the ______ Spleen Pancreas Thyroid Liver 9. Which of the following is an acellular organism that completely lacks a nucleus and other organelles? Chlamydomonas Saccharomyces cerevisiae Escherichia coli Tobacco Mosaic Virus 10. Which pigment absorbs blue and red light most strongly? Chlorophyll b Carotene Chlorophyll a Xanthophyll Loading … Question 1 of 10
