Master Class Digital Learning Academy

Cell Division (Mitosis & Meiosis) in Biology   1. What is the primary role of cell growth in living organisms?    a) Energy production    b) Structural support    c) Waste elimination    d) Communication 2. Which cellular process is essential for the repair of damaged tissues in multicellular organisms?    a) Photosynthesis    b) Respiration    c) Mitosis    d) Transcription 3. In cellular reproduction, what is the function of DNA replication?    a) Energy synthesis    b) Genetic diversity    c) Chromosome duplication    d) Protein synthesis 4. What is the significance of cellular reproduction in the growth of an organism?    a) Increases cell size    b) Maintains homeostasis    c) Produces specialized cells    d) Increases the number of cells  5. Which cellular process is crucial for the transmission of genetic i...

 Man & His Environment in Biology 1. What is the primary source of energy for most ecosystems?    a) Wind    b) Sunlight    c) Geothermal heat    d) Fossil fuels 2. Which gas is essential for photosynthesis and is released during respiration?     a) Oxygen    b) Nitrogen    c) Carbon dioxide    d) Hydrogen 3. What is the main function of decomposers in an ecosystem?    a) Produce oxygen    b) Break down dead organic matter    c) Conduct photosynthesis    d) Provide nutrients to plants    4. What is the term for the process by which water vapor is released from the leaves of plants?    a) Transpiration    b) Condensation    c) Evaporation    d) Precipitation 5. Which level of ecological organization includes all living organisms in a particular area?    a) Population    b) Community   ...

Chemical Reactivity of Metals , Non-metals & Metalloids 1. Which metal is commonly used in the commercial production of soap?    a) Sodium      b) Calcium      c) Magnesium       d) All of the above 2. In the beverage industry, which metal is often used to soften water?    a) Sodium       b) Calcium      c) Magnesium      d) Potassium 3. Which of the following metals is responsible for the "hardness" in water?    a) Sodium      b) Calcium       c) Magnesium      d) Iron 4. Which metal is commonly used in the production of fireworks to give a bright, intense flame colour?    a) Sodium      b) Calcium      c) Magnesium       d) Aluminum 5. In the food industry, which metal is often used as a reducing agent and le...