The genetic control strategy of enzyme control is most useful for production of enzymes that
options: a) act as hydrolases. b) function for only one specific reaction. c) are produced as zymogens. d) require vitamins as cofactors. e) are needed only at certain stages of development.
The correct answer and explanation is:
The correct answer is e) are needed only at certain stages of development.
Explanation:
The genetic control strategy of enzyme control is particularly useful for regulating the production of enzymes that are needed only at certain stages of an organism’s development. This type of control ensures that the enzyme is synthesized only when necessary, thus conserving energy and resources in the cell. Genetic control involves the regulation of gene expression, where the transcription and translation of specific enzymes are turned on or off depending on the needs of the organism at various developmental stages or environmental conditions.
For example, during embryonic development, some enzymes are crucial at specific stages to facilitate the breakdown of substrates that are vital for growth and development. As the organism matures, the need for certain enzymes may decrease or change, and genetic control mechanisms will adjust the enzyme levels accordingly.
This strategy contrasts with enzymes that are always present in constant amounts in the cell, regardless of the developmental stage or environmental changes. The regulation of enzyme production can also be influenced by signals such as hormones, nutrients, or environmental factors. Enzymes produced at specific developmental stages can contribute to processes such as metabolism, signal transduction, and tissue differentiation, ensuring that the enzyme is available when it is needed for critical biological processes.
In contrast, enzymes that act as hydrolases (option a), are produced as zymogens (option c), or require vitamins as cofactors (option d) may be regulated in different ways, but they do not necessarily rely on genetic control based on developmental stages. Similarly, enzymes that function for only one specific reaction (option b) may not require the same developmental regulation, as their activity might be needed consistently for that specific metabolic pathway.