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प्रश्न
A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains
विकल्प
complex proteins
simple proteins
fats
starch
उत्तर
starch
Explanation -
Amylose and Amylopectin are the two components of starch. Amylose interacts with iodine to generate a blue colour complex when iodine is added to starch-containing water. When Iodine is added to this solution, it becomes blue-black, indicating the presence of starch in the rice water.
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संबंधित प्रश्न
Match the items of Column I with those given in Column II:
| Column I | Column II |
| Food components | Product(s) of digestion |
| Carbohydrates | Fatty acids and glycerol |
| Proteins | Sugar |
| Fats | Amino acids |
Name the following :-
Organisms that can prepare their own food
Name the following :-
Organisms that cannot prepare their own food
Name the parts of the alimentary canal where
taste of the food is perceived
Name the parts of the alimentary canal where
bile juice is produced
A’ got her gall bladder removed surgically as she was diagnosed with stones in her gall bladder. After the surgery, she faced problems in the digestion of certain food items when consumed in bulk. Can you tell which kind of food items would they be and why?
Boojho and Paheli were eating their food hurriedly so that they could go out and play during recess. Suddenly, Boojho started coughing violently. Think of the reasons why he was coughing and discuss them with your friends.
Tongue is attached at the _____________ to the floor of the mouth cavity and is free at the _____________.
Amoeba pushes out _____________ around the food and traps it in a food _____________.
Find out what vitamins are and get the following information.
- Why are vitamins necessary in the diet?
- Which fruits or vegetables should be eaten regularly to get vitamins?
Write a one-page note on the information collected by you. You may take the help of a doctor, a dietician, your teacher or any other person, or from any other source.
