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Enzymes are biological catalysts that speed up chemical reactions that occur in everyday processes in a cell, such as cellular respiration. Enzymes are also used to break down wastes and old cell parts to be reused or discarded.

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Enzymes act as catalysts, speeding up chemical reactions within cells by lowering the activation energy required for the reactions to occur. They also help regulate and control the metabolic pathways within cells by selectively promoting specific reactions.

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Q: Two essential roles that enzymes play in cells?
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Continue Learning about Natural Sciences

What are the most common catalysts in living organisms?

The most common catalysts in living organisms are enzymes. Enzymes are proteins that speed up chemical reactions in cells by lowering the activation energy needed for the reactions to occur. They are specific to particular substrates and play essential roles in metabolism, growth, and other biological processes.


What is an endogenous enzyme?

An endogenous enzyme is an enzyme that is naturally produced within an organism's cells to carry out specific chemical reactions. These enzymes play key roles in various metabolic processes and are essential for maintaining normal physiological functions in the body.


How might a change in a pH affect the function of an enzyme such as hexokinase?

Many enzymes are affected by changes in temperature. Cells can regulate the activities of enzymes in many ways. Most cells contain proteins that help turn key enzymes "on" and "off" at critical stages in the life of the cell. Enzymes play essential roles in regulating chemical pathways, making materials that cells need, releasing energy, and transferring info. there ya go ppl....... always there to help ya know (:


Are there prokaryotic cells and eukaryotic cells in enzymes?

Yes, both prokaryotic and eukaryotic cells contain enzymes. Enzymes are biological molecules that catalyze chemical reactions within cells, regardless of whether the cell is prokaryotic (lacking a nucleus) or eukaryotic (containing a nucleus).


Called enzymes are organic compounds that regulate chemical reactionas in cells what is that called?

Enzymes are biological molecules that act as catalysts to accelerate chemical reactions within cells. They play a crucial role in regulating the speed of reactions without being consumed in the process. This characteristic allows enzymes to perform their functions repeatedly, making them essential for various cellular processes.