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Test: Organisation: Digestion - Grade 10 MCQ


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10 Questions MCQ Test - Test: Organisation: Digestion

Test: Organisation: Digestion for Grade 10 2024 is part of Grade 10 preparation. The Test: Organisation: Digestion questions and answers have been prepared according to the Grade 10 exam syllabus.The Test: Organisation: Digestion MCQs are made for Grade 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Organisation: Digestion below.
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Test: Organisation: Digestion - Question 1

What is the function of bile?

Detailed Solution for Test: Organisation: Digestion - Question 1

The main function of bile is to emulsify lipids. This increases the surface area of lipid droplets so as to increase the efficiency of digestion.

Test: Organisation: Digestion - Question 2

Which is the major region of the gut where lipids are broken down

Detailed Solution for Test: Organisation: Digestion - Question 2

The small intestine is the major region of the gut where lipids are broken down. Small amounts of lipases are produced elsewhere in the gut, however.

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Test: Organisation: Digestion - Question 3

What is an active site?

Detailed Solution for Test: Organisation: Digestion - Question 3

The active site is the region of an enzyme that binds the substrate molecule, or molecules. The active site has a complementary shape to the substrate.

Test: Organisation: Digestion - Question 4

Which secretion is released into the duodenum?

Detailed Solution for Test: Organisation: Digestion - Question 4

Bile is released into the duodenum. Bile is produced by the liver and stored into the gall bladder until its release.

Test: Organisation: Digestion - Question 5

Which chemical test is used to detect the presence of glucose in food?

Detailed Solution for Test: Organisation: Digestion - Question 5

Benedict's test is used to detect reducing sugars such as glucose in food. It gives a positive result with glucose, but a negative result with sucrose - the sugar we use in tea and coffee.

Test: Organisation: Digestion - Question 6

Which statement is true of enzyme activity?

Detailed Solution for Test: Organisation: Digestion - Question 6

Enzyme activity depends on the number of collisions between the enzyme and substrate. An increase in temperature therefore increases the rate of enzyme activity, though high temperatures may denature an enzyme.

Test: Organisation: Digestion - Question 7

The enzyme amylase breaks down which food chemical?

Detailed Solution for Test: Organisation: Digestion - Question 7

Amylase breaks down starch. Amylases are found in the mouth and small intestine.

Test: Organisation: Digestion - Question 8

What is the main function of the small intestine?

Detailed Solution for Test: Organisation: Digestion - Question 8

The main function of the small intestine is the absorption of digested food molecules. The process is efficient because of its very large surface area - about 200 sq m.

Test: Organisation: Digestion - Question 9

The digestion of which food molecule by enzymes begins in the mouth?

Detailed Solution for Test: Organisation: Digestion - Question 9

The digestion of starch by enzymes begins in the mouth. Here, it is broken down into maltose, a double sugar, but not fully broken down into glucose.

Test: Organisation: Digestion - Question 10

What molecules are the building blocks of proteins?

Detailed Solution for Test: Organisation: Digestion - Question 10

Amino acids are the building blocks of proteins. Twenty types of amino acid are found in proteins in the human body.

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