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Fill inthe blanks:
1. An amoeba moves with the help of pseudopodia.
2. Iodine solution is used to test whether a substance contains starch.
3. Salivary glands are present in the mouth.
Match the Pair:
1. Gall bladder - Making food acidic
2. Proteins- Meat, Fish
True or False:
1. An amoeba does not have parts like hands, mouth etc. True
2. Animals that cannot make their own food are called autotrophs. False
Answer in one sentence:
1. What is meant by diet?
Ans: All that we eat during a day is called diet.
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2. What are autotrophs?
Ans: Some living things can make their own food. They are called autotrophs.
Answer in Short:
1. What is assimilation?
Ans: As the food moves forward in the alimentary cannel food constituents are broken down by the action of enzymes into simple chemical substances which are absorbed into blood. They are then used for growth or repairs of the body. This is called assimilation
Distinguish between:
Give Reasons:
Give Reasons:
1. Raisins soaked in water swell up after some time.
Ans: The cells of raisins contain sugar solution. The water around the cells enters the cells through the cell membrane. So, raisins soaked in water swell up after some time.
DRAW A WELL-LABELLED DIAGRAM Digestive System
Short Note:
Photosynthesis – The food needed by the plants for their growth prepared by themselves. For preparation of food plants absorb the required salts and water from the soil. Beside these plants needed light, chlorophyll, carbon dioxide for this purpose. This process can be shown thus:
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In this process, plant convert light energy into chemical energy and store in the form of food. This process of transformation is aided by chlorophyll. This process of transformation of energy is called photosynthesis.
Define:
1. Autotrophs: Some living things can make their own food. They are called autotrophs.
2. Balanced Diet: A diet which includes carbohydrates, proteins, and fats as well as minerals and vitamins are provided in proper proportion is called balanced diet.
