AP BIOLOGY

CELL RESPIRATION

THE KREBS CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is decarboxylation?
A
Removal of water
B
Removal of CO2
C
Addition of CO2
D
Addition of water
Explanation: 

Detailed explanation-1: -Decarboxylation is a chemical reaction that removes a carboxyl group and releases carbon dioxide (CO2). Usually, decarboxylation refers to a reaction of carboxylic acids, removing a carbon atom from a carbon chain.

Detailed explanation-2: -Decarboxylation reaction is defined as a chemical reaction that eliminates a carboxyl group and liberates carbon dioxide (CO2). Decarboxylation mostly refers to a reaction of carboxylic acids erasing a carbon atom from a chain of carbons.

Detailed explanation-3: -Loss of carbon dioxide is called decarboxylation. Esters or carboxylic acids with a carbonyl group at the 3-(or b-) position readily undergo thermal decarboxylation. Decarboxylation was first encountered in Chapter 19 for carboxylic acids (review). The reactive species is the carboxylic acid or the carboxylate anion.

Detailed explanation-4: -Solution : Removal of ‘CO 2‘ from carboxylic acid is decarboxylation.

Detailed explanation-5: -In decarboxylation, the-COOH or-COONa group is removed and replaced with a hydrogen atom. Soda lime is manufactured by adding sodium hydroxide solution to solid calcium oxide (quicklime). It is essentially a mixture of sodium hydroxide, calcium oxide and calcium hydroxide.

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