NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This part of the chemical reaction is considered a catalyst and is not used up, but rather, recycled.
A
Substrate
B
Enzyme
C
Activation energy
D
none of the above
Explanation: 

Detailed explanation-1: -These molecules are called coenzymes because they work together with enzymes to enhance reaction rates. In contrast to substrates, coenzymes are not irreversibly altered by the reactions in which they are involved. Rather, they are recycled and can participate in multiple enzymatic reactions.

Detailed explanation-2: -A catalyst isn’t a reactant in the chemical reaction it speeds up. As a result, it isn’t changed or used up in the reaction, so it can go on to catalyze many more reactions.

Detailed explanation-3: -A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.

Detailed explanation-4: -Enzymes provide help with facilitating chemical reactions within each cell. Since they are not destroyed during the process, a cell can reuse each enzyme repeatedly.

Detailed explanation-5: -A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy without being used up in the reaction. After the reaction occurs, a catalyst returns to its original state; so catalysts can be used over and over again.

There is 1 question to complete.