Master Class Digital Learning Academy

 Polymers in Chemistry   1. What is a polymer? a. A single molecule compound b. A substance made of repeating structural units c. A metalloid element d. A compound without carbon atoms    2. How are polymers formed?    a. Dehydration synthesis    b. Reduction reactions    c. Hydrolysis    d. Combustion reactions 3. Which of the following is an example of a natural polymer?    a. Polyethylene    b. Polypropylene     c. Starch    d. PVC 4. What type of polymerization process involves the elimination of a small molecule like water?    a. Addition polymerization    b. Condensation polymerization    c. Cross-linking polymerization    d. Radical polymerization 5. What are the primary components of polymer chains?    a. Atoms    b. Monomers    c. Isomers    d. Dimers 6. Which of the following is NOT a natural polym...

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   ...