1. Enzymes break-down the various complex organic molecules of food into simple, soluble absorbable inorganic molecules without actually participation in the reaction. So they are also called as biocatalysts.

    Enzymes break-down the various complex organic molecules of food into simple, soluble absorbable inorganic molecules without actually participation in the reaction. So they are also called as biocatalysts.

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  2. Nutrients, respiration, transportation, excretion and reproduction are the five life processes that are essential for maintaining life.

    Nutrients, respiration, transportation, excretion and reproduction are the five life processes that are essential for maintaining life.

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  3. The most important criterion to decide whether something is aliveor not is the movement. All the living things which are alive move by themselves without any external help. Movement here does not mean physical movement only. It also includes movements at molecular level. secondly all living organismRead more

    The most important criterion to decide whether something is aliveor not is the movement. All the living things which are alive move by themselves without any external help. Movement here does not mean physical movement only. It also includes movements at molecular level. secondly all living organisms perform certain life processes like respiration, excretion, transportation, reproduction which enables it to sustain itself.

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  4. (a) Iodine is essential for the synthesis of thyroxine.

    (a) Iodine is essential for the synthesis of thyroxine.

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