Biology, 05.05.2020 08:08, jwbri

Which of the following statements about enzyme function is true? A. Enzyme function is independent of physical and chemical environmental factors such as pH and temperature. B. Enzymes increase the rate of chemical reactions by providing activation energy to the substrate. C. Enzymes increase the rate of chemical reactions by lowering activation energy barriers. D. Enzyme function is generally increased if the three-dimensional structure or conformation of an enzyme is altered.

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The option that give description of function of enzymes among the given options is Enzymes increase the rate of chemical reactions by lowering activation energy barriers.

An enzyme can be regarded as substance which acts as a catalyst in living organisms, they helps in regulation of the rate at which chemical reactions proceed and at the end of the reaction, the catalyst themselves remains unaltered.When Enzymes are introduced to a reaction, then the rate of reaction will increase since the Enzymes will lower the activation energy barriersFunctions of Enzyme are considered dependent on physical as well as chemical environmental factors.These factors includes pH and temperature.Enzymes does not involve in provision of activation energy to the substrateAt a High temperature enzymes can be denatured.Example is Amylase, this particular enzyme can be found in saliva.

Therefore, enzymes acts as catalyst.

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answered: VampireQueen01

C. Enzymes increase the rate of chemical reactions by lowering activation energy barriers.

Explanation:

Enzymes are biological catalysts which increases the rate of a chemical reaction. They do so by lowering the activation energy barrier between reactants and products.

Enzyme function are dependent of physical and chemical environmental factors such as pH and temperature. High temperature will denature the enzyme and reduce or stop its activity while pH outside the range of that of the enzyme will slow down its activity.

They don’t provide activation energy to the substrate.

answered: Guest

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answered: Guest

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.