Category: MCQ

  • General Biology MCQs

    General Biology MCQs

    Here are some biology MCQs. 1. Which organelle is responsible for photosynthesis in plant cells? a) Mitochondria b) Nucleus c) Chloroplasts d) Endoplasmic reticulum Answer: c) Chloroplasts Explanation: Chloroplasts are the organelles responsible for photosynthesis, where plants convert sunlight into chemical energy in the form of glucose. 2. Which of the following is NOT a…

  • General Q&A part-1

    General Q&A part-1

    This page contains general Q&A questions asked by curious people. How many types of Air pollution? Air pollution can be categorized into several types based on the sources of pollutants, the nature of the pollutants, and their effects on the environment and human health. The main types of air pollution include: Particulate Matter (PM): Particulate…

  • MCQ on Breathing and Exchange of Gases-2

    MCQ on Breathing and Exchange of Gases-2

    Visiting high mountains may cause altitude sickness in men living in plain areas. Prime cause of this is (a) excess of CO2 in blood (b) decreased efficiency of haemoglobin (c) decreased partial pressure of oxygen (d) decreased proportion of oxygen in air. Increase in body temperature makes oxygen haemoglobin dissociation curve (a) shift to left…

  • MCQ on Breathing and Exchange of Gases

    MCQ on Breathing and Exchange of Gases

    Dead space air is  The amount of air left in lungs after deepest expiration.  About 150 ml  Both of these  None of these Answer: 2 The amount of air left in the lungs after the deepest expiration is Residual air.  2. When fully saturated, one molecule of oxyhaemoglobin carries the following number of oxygen molecules. …

  • MCQ on Respiration in plant

    MCQ on Respiration in plant

    Q1: Which organelle in plant cells is primarily responsible for cellular respiration? (A) Chloroplast (B) Mitochondrion (C) Vacuole (D) Nucleus Answer: (B) Mitochondrion Explanation: Mitochondria are the main sites of cellular respiration in plant cells, where ATP is produced. Q2: During respiration, what is the primary substrate used by plants to generate energy? (A) Oxygen…

  • Biotechnology: Principles and Processes Quiz

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  • Plant Growth and Development Quiz

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    Q1. Rules to explain “The phenomenon of inheritance of biological characteristics” was formulated by: A) T.H.Morgan  B) Gregor Johann Mendell C) Rudolf Virchow D) Bateson  E) Lamark Q2. Genetic research was activated and a revolution in modern biology occurred in the year: A) 1951-53 B) 1961-63 C) 1971-73 D) 1975-71 E) 1981-83 Q3. Genetic engineering …



    Q1) The relationship between mineral and water is know as: A) Ascent of sap B) Osmoregulation C) Excretion D) All of them Q2) The cell sap having solution of: A) One types B) Two types C) Three types D) Four types Q3) The water potential not more than: A) 1 B) 100 C) 1000 D)…



    Q1)  Any attribute or descriptive phrase, referring to form, structure or behaviour of a specific organism for a particular purpose is: A) Expression B) Specificity C) Character D) Nature E) None of the above Q2) Which one of the following is an example of “Expression of character”? A) Petal length B) Stem thickness C) Corolla…



    Q1) Enzyme is a Greek word which means: A) in virus B) in bacteria C) in fungi D) in yeast E) in humans Q2) Who discovered that certain molecules of ribonucleic acid also function as enzymes? A) Friedrich Wilhem Kuhne only B) Friedrich and Thomas Cech C) Thomas Cech only D) Sidney Altman & Thomas…



    Q1) Chemically, protoplasm contains: A) 60-70% of H2O B) 30-40% of H2O C) 90-95% of H2O D) 70-90% of H2O E) 50-60% of H2O Q2) If water is evaporated, the remaining dry weight of the cell consists of: A) Carbon B) Hydrogen C) Nitrogen D) Oxygen E) Ammonia Q3) During photosynthesis, which one is used…