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प्रश्न
Define the following:
Organic food
उत्तर
Organic food - The food that is produced by using methods that do not involve synthetic inputs such as synthetic pesticides and chemical fertilizers is called organic food.
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संबंधित प्रश्न
The individual flattened stacks of membranous structures inside the chloroplasts are known as :
A. Grana
B. Stroma
C. Thylakoids
D. Cristae
Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:
To test a leaf for starch, the leaf is boiled in water to (1) _________. It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.
Give biological explanations for Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered.
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 
What is meant by ‘Positive’ and ‘Negative’ tropic movements in plants?
Mention the exact location of the following :
Thylakoids
If the rate of respiration becomes more than the rate of photosynthesis, plants will:
Name the following:
The organisms that can be called "natural purifiers" of the air.
Complete the following food chains by writing the names of appropriate organisms in the blanks:
______ → Mouse ______ → Peacock
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
What aspect of photosynthesis was being investigated?
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Why was the plant kept in the dark before the experiment?
Name the membrane that connects thylakoid of one granum With the other granum.
Respiration is said to be the reversal of photosynthesis.
Draw a neat and well-labeled diagram of the apparatus you would set up to show that oxygen is given out during photosynthesis.
Explain the Term NADPH.
Choose the correct option.
The net result of photo-oxidation of water is release of ______.
To which directional stimuli do
- roots respond
- shoots respond?
The source of O2 liberated in photosynthesis is ______.
Read the following sentences about photosynthesis.
- Sunlight, carbon dioxide, chlorophyll and water are necessary.
- Oxygen is absorbed.
- Leaves carry out photosynthesis.
- Proteins are made during photosynthesis.
Choose the correct pair of sentences that are true to photosynthesis.
Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:
Snake, Rabbit, Cabbage, Hawk.
Which of the following is not applicable to the process of photosynthesis?
