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The enzyme with lowest pH optimum is pepsin. Pepsin works in the stomach in an acidic environment and aids in digestion.

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11y ago

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Is FAD a prosthetic group or a coenzyme?

I'm no biochemist, but I believe there's a large if not complete overlap between "prosthetic group" and "coenzyme", or at least between "prosthetic group" and "cofactor". At least in the case of some dehydrogenases, FAD is covalently bound at an active site and accepts two hydrogen nuclei and two electrons to become FADH2. It then passes these to another molecule and returns to its oxidized state.


Which sequence of terms represents a decrease from the greatest number of structures to least number of structures present in a cell?

gene,chromosome THEN nucleus :) HOPE YOU DO WELL !!


How many reactions can each type of enzyme catalyse?

One, and that is the Beauty of Life. In a laboratory a chemist is super-happy to obtain a 60% yield in a reaction - means 40% waste-product. Any Cell, with its thousands of chemical reactions occurring constantly and simultaneously, would IMMEDIATELY BOG-DOWN in useless by-products unless the YIELD of each and every ENZYME was not 100%.


What population would least likely to survive in a change in its ecosystem?

A population with a narrow diet or specialized habitat requirements would be least likely to survive in a change in its ecosystem. Additionally, populations with low genetic diversity or slow reproduction rates may struggle to adapt to rapid environmental changes.


When is a single base substitution mutation least likely to be deleterious?

A single base substitution mutation is least likely to be deleterious when it occurs in a non-coding region of DNA, such as in an intron or in a region with no functional significance. Additionally, if the mutation results in a silent or synonymous change in the amino acid sequence, it may not have a noticeable effect on the protein's function.