Identify the correct set, which shows the name of the enzyme from where it is secreted and substrate upon which it acts.

Ptyalin - Intestine - Maltose

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Ptyalin - Pancreas - Lipid

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Pepsin - Stomach wall - Caesin

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Chymotrypsin - Salivary gland - Lactose

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Solution

The correct option is B Pepsin - Stomach wall - Caesin
Pepsin is an enzyme secreted in the stomach that breaks down protiens into smaller proteins. It acts on the protein casein.
Chymotrypsin is released from the intestine and digest proteins.
Ptyalin is released from salivary glands and acts on starch.

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Similar questions

Q. Identify the correct set which shows the name of the enzymes from where it is secreted and the substrate upon which it acts.

Q. A child eats his lunch made of rice, vegetables and pulses. Regarding this which of the following match is incorrect? Substrate of enzyme Enzyme Site of Secretion Products formed

I.	Starch	Salivary amylase	Salivary gland	Maltose, Dextrin
II.	Proteins	Pepsin	Stomach	Large peptides
III.	Lipase	Enterokinase	Small intestine	Fatty acids
IV.	Nucleic acids	Nucleases	Pancreas	Nucleotides

Q. Which of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?
(i) Small intestine: Protein

P e p s i n - --- \to

Amino acid
(ii) Stomach : Fat

L i p a s e - --- \to

Micelles
(iii) Duodenum : Triglycerides

T r y p s i n - ---- \to

Monoglyceride
(iv) Buccal cavity : Starch

A m y l a s e - ---- \to

Disaccharide
(v) Jejunum: Peptones

P e p s i n - --- \to

Amino acid
(vi) Buccal cavity : Starch

A m y l o g l y c e r a t e - -------- \to

Maltose

Q. In human digestive system, the enzymes pepsin and trypsin are secreted respectively by:
(a) pancreas and liver
(b) stomach and salivary glands
(c) pancreas and gall bladder
(d) stomach and pancreas

Question 15
Choose the odd one out from each group and give reasons.

i) Liver, salivary gland, starch, gall bladder
ii) Stomach, liver, pancreas, salivary gland
iii) Tongue, absorption, taste, swallow
iv) Oesophagus, small intestine, large intestine, rectum

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