NEET · Biology doubts
247 doubts found
What does “Mitochondria” actually mean in Cell: The Unit of Life, and why does it matter for NEET?
the powerhouse of the cell, where aerobic respiration makes most of the ATP; it has its own DNA.
What does “Proteins” actually mean in Biomolecules, and why does it matter for NEET?
polymers of amino acids that build tissues, act as enzymes, and transport molecules.
What does “Meiosis” actually mean in Cell Cycle & Cell Division, and why does it matter for NEET?
reductional division producing four genetically different haploid gametes.
What does “Chlorophyll” actually mean in Photosynthesis in Higher Plants, and why does it matter for NEET?
the green pigment that absorbs mainly red and blue light and reflects green.
What does “Fermentation” actually mean in Respiration in Plants, and why does it matter for NEET?
anaerobic breakdown of pyruvate into ethanol or lactic acid, releasing very little ATP.
What does “Bile” actually mean in Digestion & Absorption, and why does it matter for NEET?
a liver secretion (stored in the gall bladder) that emulsifies fats into small droplets.
What does “Carbon dioxide transport” actually mean in Breathing & Exchange of Gases, and why does it matter for NEET?
most CO₂ travels in the blood as bicarbonate ions.
What does “Blood components” actually mean in Body Fluids & Circulation, and why does it matter for NEET?
plasma (fluid), red cells (carry O₂), white cells (defence) and platelets (clotting).
What does “Nitrogenous waste” actually mean in Excretory Products & Elimination, and why does it matter for NEET?
humans mainly excrete urea, so we are ureotelic.
What does “Reflex arc” actually mean in Neural Control & Coordination, and why does it matter for NEET?
a fast, involuntary response routed through the spinal cord without waiting for the brain.
What does “Thyroxine” actually mean in Chemical Coordination (Endocrine System), and why does it matter for NEET?
the thyroid hormone that controls the body's metabolic rate; it needs iodine.
What does “Incomplete dominance” actually mean in Principles of Inheritance & Variation, and why does it matter for NEET?
heterozygotes show a blended, intermediate phenotype (red × white → pink).
What does “Transcription” actually mean in Molecular Basis of Inheritance, and why does it matter for NEET?
copying a gene's DNA into messenger RNA in the nucleus.
What does “Hardy–Weinberg principle” actually mean in Evolution, and why does it matter for NEET?
allele frequencies in a large, undisturbed population stay constant — no evolution.
What does “Antibodies” actually mean in Human Health & Disease, and why does it matter for NEET?
protein molecules made by B-lymphocytes that bind and neutralise specific antigens.
What does “Fertilisation” actually mean in Human Reproduction & Reproductive Health, and why does it matter for NEET?
the fusion of sperm and ovum, which happens in the ampulla of the fallopian tube, not the uterus.
What does “PCR (polymerase chain reaction)” actually mean in Biotechnology & its Applications, and why does it matter for NEET?
a technique that makes millions of copies of a DNA segment using primers and heat-stable Taq polymerase.
What does “Trophic levels” actually mean in Ecosystem & Ecology, and why does it matter for NEET?
the feeding positions in a food chain: producers, primary consumers, secondary consumers, and decomposers.
I keep getting “Mitochondria” questions wrong in Cell: The Unit of Life. What's the trap?
assuming all cellular energy is made in mitochondria (glycolysis is in the cytoplasm).
I keep getting “Proteins” questions wrong in Biomolecules. What's the trap?
thinking every protein is an enzyme.
I keep getting “Meiosis” questions wrong in Cell Cycle & Cell Division. What's the trap?
thinking meiosis gives identical cells like mitosis.
I keep getting “Chlorophyll” questions wrong in Photosynthesis in Higher Plants. What's the trap?
thinking plants absorb green light for photosynthesis.
I keep getting “Fermentation” questions wrong in Respiration in Plants. What's the trap?
thinking fermentation gives a lot of energy.
I keep getting “Bile” questions wrong in Digestion & Absorption. What's the trap?
calling bile a digestive enzyme.