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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
पर्याय
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
The main steps of nutrition in humans are ______, ______, ______, ______ and ______.
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 |
Which of the following are energy foods?
In amoeba, food is digested in the ____________.
Name the following :-
Organisms that can prepare their own food
Mark the following statements as True or False. If false, write the correct statements.
Tongue is attached to the roof of the mouth cavity at the back.
Choose the odd one out from each group and give reasons.
tongue, absorption, taste, swallow
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.
