Which of the following is not catalysed by a brush border enzyme?

Maltose

M a l t a s e - ----- \to

glucose+ glucose

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Lactose

L a c t a s e - ----- \to

glucose+galactose

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Starch

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

Disaccharide

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Nucleotides

N u c l e o t i d a s e - --------- \to

Nucleoside

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Solution

The correct option is C Starch $A m y l a s e - ----- \to$ Disaccharide
Maltase, Lactase, and Nucleotidase are brush-border enzymes that catalyze the final catabolism of metabolites in the small intestine.

So the correct option is C.

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Similar questions

Q. Which of the following reaction/s is/are catalysed by brush border enzymes?
a. Maltose maltase Glucose +Glucose
b. Nucleosides nucleosidases Sugar + Bases
c. Starch Amylase Disaccharides
d. Nucleic acid Nucleases Nucleotides

Complete the following table: [5 MARKS]

$\begin{matrix} D i g e s t i v e j u i c e s a n d e n z y m e s & S u b s t a n c e d i g e s t e d & P r o d u c t F o r m e d S a l i v a A m y l a s e G a s t r i c j u i c e P r o t e a s e (p e p s i n) a n d h y d r o c h l o r i c a c i d P a n c r e a t i c j u i c e P r o t e a s e s (t r y p s i n) L i p a s e s A m y l a s e I n t e s t i n a l e n z y m e s P e p t i d a s e s S u c r a s e L a c t a s e M a l t a s e B i l e f r o m t h e l i v e r B i l e s a l t s \end{matrix}$

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Q. Enzymatic reactions are given in Column I and enzymes in Column II.

Column I	Column II
$(A)$ Maltose $\to$ Glucose	$(i)$ Zymase
$(B)$ Sucrose $\to$ Glucose $+$ Fructose	$(i i)$ Pepsin
$(C)$ Glucose $\to$ Ethyl alcohol $+ C O_{2}$	$(i i i)$ Maltase
$(D)$ Starch $\to$ Maltose	$(i v)$ Invertase
$(E)$ Proteins $\to$ Amino acids	$(v)$ Diastase

Choose the correct matching of enzymatic reaction and enzyme that catalyses the correct reaction from the codes given below.

Q. The enzyme hexokinase which catalyses glucose to glucose-6-phosphate in glycolysis is inhibited by glucose-6-phosphate. This is an example of

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Which of the following is not catalysed by a brush border enzyme?

The correct option is C Starch Amylase−−−−−−→ DisaccharideMaltase, Lactase, and Nucleotidase are brush-border enzymes that catalyze the final catabolism of metabolites in the small intestine.So the correct option is C.

The correct option is C Starch $A m y l a s e - ----- \to$ Disaccharide
Maltase, Lactase, and Nucleotidase are brush-border enzymes that catalyze the final catabolism of metabolites in the small intestine.

So the correct option is C.