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Sergio [31]
3 years ago
9

How do enzymes speed up reactions?

Biology
2 answers:
Phantasy [73]3 years ago
7 0

Answer:

Enzymes speed up reactions by lowering the activation energy needed for the reaction to start.

morpeh [17]3 years ago
7 0

Answer:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

Explanation:

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Answer:

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The hormone called human placental lactogen (hPL) is a hormone secreted by the placenta, which functions to supply nutrients and oxygen to the growing fetus in the womb.

The human placental lactogen is produced to help in the efficient use of ingested food substances in the production of energy (metabolism). This indirectly helps to nourish the placenta because if the mother efficiently converts food into nutrients, the placenta is also adequately nourished.

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Dennis_Churaev [7]
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4 years ago
Explain why Huntington disease is caused by a dominant allele.
Ymorist [56]

Answer:

Explanation:

The huntington disease is a disease that is caused by the dominent allele. It is the disease which causes damage to the brain cell. The mother and father can be carrier or affected by the disease. As in the condition if both parents exhibit a hetrozygous condition that is both have a dominent as well as as a recessive allele responsible for the disease. Then there is 75% chances of occurence of disease in the child. If both parents are homozygous that is both have dominent alleles then 100% chances of occurrence of the disease.

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