The variable affecting the enzyme action is temperature.
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Catalase is the enzyme which acts upon the "substrate hydrogen peroxide", breaking down them into water and oxygen gas. Each and every enzyme is a protein, which has a tertiary structure which is essential for the enzyme action. The tertiary structure of the enzyme provides the site of enzymatic action where the substrate do gets attached for the enzymatic action to take place.
Temperature, or heat, changes the protein structures irreversibly after a certain range. So if the beef liver is boiled, then the enzyme structure gets permanently changed, which is why the catalase cannot breakdown the peroxides, after boiling.
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Explanation:
The process where certain organisms excrete nitrogenous waste in the form of ammonia is called ammonotelism.
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The first theories of matter were put forward by Empedocles in 450 BC, he proposed that all matter was composed of four elements - Earth, air, fire and water. Later, Leucippus and Democritus suggested matter was made up of tiny indestructible particles continuously moving in empty space.
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Teratogens are agents or factors that causes malformation of an embryo they include alcohol,cigar smoke, drugs, maternal stress and paternal age. At the embryonic period the unborn baby is at a very high risk of developing structural defects ddue to the effects of teratogens. Teratogens may lead to abnormal development in muscles, tendons and bones.
Parents pass genes to their offspring; the genes program cells to make specific enzymes and other proteins, whose cumulative action produces an individual’s inherited traits.
