• Change in pH of the surroundings causes the activation of the catalytic site of an enzyme.
    • Amoeboid movements and cyclosis are due to microfilaments.
    • Enzymes decrease the activation energy of a chemical reaction.
    • Vitamins form the raw material for coenzymes.
    • Chromoplasts and leucoplasts are converted into glycolipids and glycoproteins by adding carbohydrates.
    • Enzymes are biological molecules that catalyze biochemical reactions and remain unchanged after completion.
    • Enzymes controlling cellular respiration are present in mitochondria.
    • The maturing face of the Golgi apparatus is concave.
    • An activated enzyme consisting of a polypeptide chain and a cofactor is called holoenzyme.
    • Active transport requires energy to move molecules against their concentration gradient.
    • In the electron transport chain, oxygen is the final electron acceptor.
    • Biogas primarily consists of methane and carbon dioxide.
    • The original source of energy in most ecosystems is the sun.
    • C3 plants are more prone to photorespiration.
    • Spongy mesophyll cells have large intercellular spaces.
    • Florigen is a flowering hormone produced in leaves.
    • Lichen represents a mutualistic association between a fungus and an alga.
    • Plants can absorb nitrate ions directly through their leaves.
    • ATP provides energy for active transport in cells.
    • Hydroponics is the soilless growth of plants.

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