AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The bonding of two amino acid molecules to form a larger molecule requires
A
The release of a water molecule
B
The release of a carbon dioxide molecule
C
The addition of a nitrogen atom
D
The addition of a water molecule
Explanation: 

Detailed explanation-1: -Bonding of two amino acid molecules to form a larger molecule requires the release of a carbon dioxide molecule the addition of a nitrogen atom the addition of a water molecule formation of an ionic bond the release of a water molecule.

Detailed explanation-2: -The addition of two amino acids to form a peptide requires dehydration synthesis. Proteins are very large molecules containing many amino acid residues linked together in very specific order.

Detailed explanation-3: -The two joined amino acids are called a dipeptide. The amide bond is synthesized when the carboxyl group of one amino acid molecule reacts with the amino group of the other amino acid molecule, causing the release of a molecule of water (H2O), hence the process is a dehydration synthesis reaction.

Detailed explanation-4: -The linking of two amino acids entails the release of a water molecule. Hence, the process that links two amino acids together is called condensation. The condensation reaction is also called a dehydration reaction.

There is 1 question to complete.