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SCORPION-xisa [38]
2 years ago
13

Which statement best describes the breakdown of food in the digestive system?

Biology
1 answer:
Vladimir [108]2 years ago
6 0

Answer:

Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.

Explanation:

The salivary glands in the mouth produce saliva which contains enzymes that breaks down carbohydrates into sugars.

The digestive glands in the stomach lining also produce enzymes that break down proteins into amino acids that your body needs to make proteins.

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An iodine test of a tomato plant leaf revealed that starch was present at 5:00 p.m. on a sunny afternoon in July. When a similar
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This reduction in starch content occurred because starch was changed into simple sugars

<h3>Explanation: </h3>

Starch is a polymeric carbohydrate consist of many glucose units linked by glycosidic bonds. The iodine test is used to test for the presence of starch. Starch will change color to an intense "blue-black" colour after the addition of aqueous solutions of the triiodide anion. To do it we can add Iodine-KI reagent to a solution or directly on a potato or other materials such as bread, crackers, or flour The reaction between amylose that present in lesser amounts and iodine is said to account for the intense color change seen.

An iodine test of a tomato plant leaf revealed that starch was present at 5:00 p.m. on a sunny afternoon in July. When a similar leaf from the same tomato plant was tested with iodine at 6:00 am the next morning, the test indicates that less starch was present in this leaf than in the leaf tested the day before. This reduction in starch content occurred because starch was

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  • 3. transported downward toward the roots through tubes
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