18. Carboxylic Acid
A carboxyl group consists of a carbon
atom that has a double bond with one
oxygen atom and a single bond with a
hydroxyl group. Its formula is COOH.
19. Carboxylic Acid
A carboxyl group consists of a carbon
atom that has a double bond with one
oxygen atom and a single bond with a
hydroxyl group. Its formula is COOH.
When a carboxyl group is substituted
in a hydrocarbon, the substance formed
is called a carboxylic acid.
20. Carboxylic Acid
A carboxyl group consists of a carbon
atom that has a double bond with one
oxygen atom and a single bond with a
hydroxyl group. Its formula is COOH.
When a carboxyl group is substituted
in a hydrocarbon, the substance formed
is called a carboxylic acid.
The simplest carboxylic acid is formic
acid.Formic acid consists of a single
hydrogen atom and a carboxyl group.
22. Carboxylic Acid
A carboxyl group consists of a carbon
atom that has a double bond with one
oxygen atom and a single bond with a
hydroxyl group. Its formula is COOH.
23. Carboxylic Acid
A carboxyl group consists of a carbon
atom that has a double bond with one
oxygen atom and a single bond with a
hydroxyl group. Its formula is COOH.
26. Carboxylic Acid
Many carboxylic acids occur in
foods.
Citric acid is found in citrus fruits
such as oranges and grapefruit.
27. Carboxylic Acid
Many carboxylic acids occur in
foods.
Citric acid is found in citrus fruits
such as oranges and grapefruit.
Lactic acid is present in sour milk.
28. Carboxylic Acid
Many carboxylic acids occur in
foods.
Citric acid is found in citrus fruits
such as oranges and grapefruit.
Lactic acid is present in sour milk.
Acetic acid dissolved in water, this
is also known as vinegar.
31. Amines
Amines are a group of substituted
hydrocarbons formed when an amino
group (NH2) replaces a hydrogen
atom.
32. Amines
Amines are a group of substituted
hydrocarbons formed when an amino
group (NH2) replaces a hydrogen
atom.
Methylamine is formed when one of
the hydrogens in methane is replaced
with an amino group.
34. Amines
A more complex amine is the
novocaine dentists once used to
numb your mouth during dental
work.
35. Amines
A more complex amine is the
novocaine dentists once used to
numb your mouth during dental
work.
Amino groups are important
because they are a part of many
biological compounds that are
essential for life.
37. Amino Acids
When both an amino group (NH2)
and a carboxyl acid group (COOH)
replace hydrogens on the same
carbon atom in a molecule, an
amino acid is formed.
38. Amino Acids
When both an amino group (NH2)
and a carboxyl acid group (COOH)
replace hydrogens on the same
carbon atom in a molecule, an
amino acid is formed.
Amino acids are essential for
human life.
41. Proteins
The 20 different amino acids bond in
different combinations to form a large
variety of proteins.
42. Proteins
The 20 different amino acids bond in
different combinations to form a large
variety of proteins.
These are needed in the human body.
43. Proteins
The 20 different amino acids bond in
different combinations to form a large
variety of proteins.
These are needed in the human body.
Some amino acids are made in our bodies
and are called nonessential.
44. Proteins
The 20 different amino acids bond in
different combinations to form a large
variety of proteins.
These are needed in the human body.
Some amino acids are made in our bodies
and are called nonessential.
The essential amino acids, must be
consumed by eating protein-rich foods.
45. Proteins
The 20 different amino acids bond in
different combinations to form a large
variety of proteins.
These are needed in the human body.
Some amino acids are made in our bodies
and are called nonessential.
The essential amino acids, must be
consumed by eating protein-rich foods.
The human body stores fat and starches for
later use, but it does not store excess amino
acids for later use—the amino acids must
eaten every day.
46. Proteins
Proteins can be as long as approximately
25,000 amino acids long. WOW!! That’s long!
