🧬 The Living World – MCQs (Part 1: Q1–Q25) Q1. The term taxonomy was first introduced by: A. Theophrastus B. Aristotle C. Linnaeus D. A.P. de Candolle ✅ A: Called “Father of Botany”. B: Classified animals into blooded & bloodless. …
🧬 Biological Classification – MCQs Part 1 (Q1–Q25) Q1. Who proposed the two-kingdom system of classification? A) Whittaker B) Aristotle C) Linnaeus ✅ D) Haeckel Explanation: Linnaeus classified living organisms into two kingdoms – Plantae and Animalia. Q2. Which of …
🌿 Plant Kingdom – MCQs Part 1 (Q1–Q25) Q1. The plant kingdom is divided into how many main groups? A) 2 B) 3 C) 4 ✅ D) 5 Explanation: The plant kingdom is broadly classified into Algae, Bryophytes, Pteridophytes, and …
🐾 Animal Kingdom – MCQs Part 1 (Q1–Q25) Q1. The Animal Kingdom is classified mainly based on: A) Reproduction B) Symmetry, coelom, and segmentation ✅ C) Feeding habits D) Circulatory system Explanation: Symmetry, body cavity (coelom), and segmentation are the …
🌿 Morphology of Flowering Plants – MCQs Part 1 (Q1–Q25) Q1. The study of external features of plants is called: A) Anatomy B) Cytology C) Morphology ✅ D) Histology Explanation: Morphology deals with the external form and structure of plants. Q2. …
🌱 Anatomy of Flowering Plants — MCQs Part 1 (Q1–Q25) Q1. Study of internal structure of plants is called A) Morphology B) Cytology C) Anatomy ✅ D) Embryology Explanation: Plant anatomy deals with internal organization of tissues in organs like …
🐾 Structural Organisation in Animals — MCQs Part 1 (Q1–Q25) Q1. The study of microscopic structure of animal tissues is called A) Cytology B) Histology ✅ C) Morphology D) Anatomy Explanation: Histology deals with the microscopic study of tissues. Q2. …
🔬 Cell: The Unit of Life – MCQs Part 1 (Q1–Q25) Q1. The cell is the basic unit of A) DNA B) Life ✅ C) Nucleus D) Protein Explanation: Cell is the structural, functional, and genetic unit of life (Cell …
🔬 Biomolecules – MCQs Part 1 (Q1–Q25) Q1. Biomolecules containing C, H, and O in ~1:2:1 ratio are A) Proteins B) Carbohydrates ✅ C) Lipids D) Nucleic acids Explanation: Carbohydrates generally follow (CH₂O)ₙ empirical formula. Q2. The building blocks of …
🔬 Cell Cycle and Cell Division – MCQs Part 1 (Q1–Q25) Q1. The series of events by which a cell duplicates its genome and divides is called A) Mitosis B) Meiosis C) Cell cycle ✅ D) Cytokinesis Explanation: The cell …
🌱 Transport in Plants – MCQs Part 1 (Q1–Q25) Q1. The main solvent in plant transport is A) Alcohol B) Water ✅ C) Glucose D) Amino acids Explanation: Water is the universal solvent; transport of minerals, sugars, and hormones depends …
🌾 Mineral Nutrition – MCQs Part 1 (Q1–Q25) Q1. Essential elements are those that A) Are abundant in soil B) Increase plant height C) Are indispensable for life cycle completion ✅ D) Improve taste of fruits Explanation: An element is …
☀️ Photosynthesis in Higher Plants – MCQs Part 1 (Q1–Q25) Q1. Photosynthesis is essentially a process of A) Energy release B) Energy conversion ✅ C) Energy storage only D) Energy destruction Explanation: Light energy is converted into chemical energy (ATP, …
🌱 Respiration in Plants – MCQs Part 1: (Q1 – Q25) Q1. Which one of the following is the first step in respiration? a) Glycolysis b) Krebs cycle c) Electron transport chain d) Fermentation Answer: a) Glycolysis 👉 Glycolysis is …
🌿 Plant Growth & Development – MCQs Part 1: Q1–Q25 Q1. Plant growth is best described as a) Anabolic only b) Irreversible increase in size c) Reversible increase in size d) Only increase in dry weight Answer: b) Irreversible increase …
Digestion & Absorption – MCQs Part 1 — Q1–Q25 Q1. Which cells of the stomach secrete hydrochloric acid (HCl)? a) Chief cells b) Parietal (oxyntic) cells c) Mucous neck cells d) G cells Answer: b) Parietal (oxyntic) cells Explanations: a) …
🫁 Breathing & Exchange of Gases – MCQs Part 1 — Q1–Q25 Q1. The primary muscle of normal (quiet) inspiration is: a) External intercostals b) Diaphragm c) Internal intercostals d) Abdominal muscles Answer: b) Diaphragm Explanations: a) External intercostals assist …
🩺 Body Fluids & Circulation – MCQs Part 1 — Questions 1–25 Q1. The largest fluid compartment (by volume) in the adult human body is: a) Plasma b) Interstitial fluid c) Intracellular fluid d) Lymph Answer: c) Intracellular fluid Explanations: …
Excretory Products & Their Elimination – MCQs Part 1 — Q1–Q25 Q1. The primary nitrogenous excretory product in humans is: a) Ammonia b) Urea c) Uric acid d) Creatinine Answer: b) Urea Explanation: Humans are ureotelic — liver converts NH₃ …
Locomotion & Movement – MCQs Part 1 (Q1–Q25) Q1. The basic functional unit of skeletal muscle is the: a) Myofibril b) Sarcomere c) Motor unit d) Fascicle Answer: b) Sarcomere a) Myofibril — a structure composed of repeating sarcomeres; not …
Neural Control & Coordination – MCQs Part 1 — Q1–Q25 Q1. The functional unit of the nervous system is the: a) Glial cell b) Neuron c) Synapse d) Nerve Answer: b) Neuron a) Glial cell — supports neurons (nutrition, myelination, …