Which enzyme breaks down protein?

which enzyme breaks down protein?
(A). Amylases
(B). Lipases
(C). Proteases (Proteolytic enzymes )
(D). Nucleases
Answer: Proteases

What are Proteases?

Proteases (Proteolytic enzymes ) are the enzymes that are helpful to break down the protein.

How Proteases are made?

Proteases are made by the followings;

Fungi
Animals
Plants
Bacteria

Proteases break down proteins in the skin or in the body.

Classification of Proteases

We can classify Proteases According to the followings;

Proteases Classification According to optimal pH
Proteases Classification According to catalytic residue

1. Proteases Classification According to optimal pH

Acid proteases: proteases with optimal pH in acidic solutions. Examples are chymosin and pepsin.
Alkaline proteases (Basic proteases): active from neutral to alkaline pH range.
Neutral proteases: an extremely stable Zn-metalloendopeptidase that is produced by Paenibacillus polymyxa.

2. Proteases Classification According to catalytic residue

Serine proteases: Examples of Serine proteases are Plasmin, Thrombin, Keratinase, Acrosomal protease, Complement C1, Chymotrypsin, Trypsin, Elastase, Fibrinolysin, Cocoonase, Collagenase
Cysteine proteases

Threonine proteases
Aspartic proteases
Glutamic proteases
Metalloproteases
Asparagine peptide lyases

which of the following is the Pancreatic digestive enzyme?
(A). Chymotrypsin
(B). Trypsin
(C). both a and b
(D). Plasmin
Answer: both a and b

Which of the following enzyme is helpful for the Digestion of hair & connective tissue?
(A). Keratinase
(B). Trypsin
(C). Fibrinolysin
(D). Plasmin
Answer: Keratinase

Which enzyme dissolves blood clots?
(A). Keratinase
(B). Trypsin
(C). Fibrinolysin
(D). Plasmin
Answer: Plasmin

Which enzyme activates fibrinogen to form blood clots?
(A). Acrosomal protease
(B). Trypsin
(C). Thrombin
(D). Plasmin
Answer: Thrombin

Which enzyme is useful in cell lysis in immune reactions?
(A). Acrosomal protease
(B). Trypsin
(C). Thrombin
(D). Complement C1
Answer: Complement C1

Which enzyme is used in cell transformation?
(A). Fibrinolysin
(B). Trypsin
(C). Thrombin
(D). Complement C1
Answer: Fibrinolysin

Which enzyme is used in the dissolution of cocoons in moth metamorphosis?
(A). Fibrinolysin
(B). Trypsin
(C). Thrombin
(D). Cocoonase
Answer: Cocoonase

What is the role of the Collagenase enzyme?
(A). dissolves blood clots
(B). Digestion of hair & connective tissue
(C). dissolution of the cocoon in moth metamorphosis
(D). sperm penetration of ova
Answer: Digestion of hair & connective tissue

What is the role of the Elastase enzyme?
(A). Pancreatic digestion
(B). Digestion of hair & connective tissue
(C). dissolution of the cocoon in moth metamorphosis
(D). sperm penetration of ova
Answer: Pancreatic digestive enzyme

which enzyme breaks down complex carbohydrates?
(A). Amylases
(B). Nucleases
(C). Proteases (Proteolytic enzymes )
(D). Lipases
Answer: Amylases
which enzyme breaks down fats?
(A). Nucleases

(B). Lipases
(C). Proteases (Proteolytic enzymes )
(D). Amylases
Answer: Lipases
Proteases can be classified according to which of the followings?
(A). Based on optimal pH
(B). Based on catalytic residue
(C). both of these
(D). None of these
Answer: both of these

Which enzyme digests carbohydrates?