Question

Sucrase is an enzyme found in:-
A. saliva
B. gastric juice
C. intestinal juice
D. pancreatic juice

Answer 1

Sucrase is a member of a group of enzymes. This enzyme helps catalyse the hydrolysis of cane sugar, or sucrose, to the simple sugars glucose and fructose. The sucrase is also known as invertase.

Complete answer: An enzyme is a biological molecule that acts as a catalyst in living organisms. Enzymes also regulate the rate at which chemical reactions proceed without itself being altered in the process. The various biological processes that take place within all living organisms, all are chemical reactions that are mostly regulated by enzymes.
Sucrase is a type of digestive enzyme that acts as a catalyst for the hydrolysis of sucrose to its different subunits such as fructose and glucose. This group of enzymes are present in yeast and is found in the intestinal mucosa of animals. Sucrase-isomaltase is a form of sucrose that is released in the small intestine on the brush border portion. The sucrase is also known as the enzyme invertase and it is more commonly found in plants. It also hydrolyses sucrose but by a different mechanism. It is helpful in the digestion of food by breaking down it and enabling absorption of nutrients.
The sucrase enzymes can be present in three types that are isomaltose, invertase, and sucrose alpha-glucosidase.
Sucrose intolerance is a condition that takes place when sucrase is not being secreted in the small intestine. In the case of intolerance of sucrose as the result of consuming sucrose may cause excess gas production and often accompanied by diarrhoea and malabsorption. Sucrase is produced by the tips of the villi of the epithelium which present in the small intestine. The levels of sucrase are decreased in response to villi-blunting events such as celiac sprue and the inflammation which is associated with the disorder. The levels of the sucrase increase during pregnancy, lactation, and diabetes as the villi hypertrophy.

Hence, the correct answer is option (C).

Note: Sucrase is a type of digestive enzyme which helps in the breakup of sucrose into fructose and glucose through the process of hydrolysis. This enzyme is found in the intestinal juice. Sucrase is secreted by some of the brush border cells of the small intestine, therefore this enzyme is also referred to as brush border enzymes.