Advertisements
Advertisements
प्रश्न
Mention one difference between the following on the basis of what is given in bracket.
Producers and consumers (mode of nutrition)
उत्तर
|
Producers |
Consumers |
|
Producers show autotrophic mode of nutrition i.e. they are able to produce their own food from basic raw materials. For example: green plants |
Consumers show heterotrophic mode of nutrition i.e. they depend directly or indirectly on the producers for their food. For example: Animals |
APPEARS IN
संबंधित प्रश्न
The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both testtubes are kept in sunlight. Answer the questions that follow:
(i) Name the physiological process that releases the bubbles of oxygen.
(ii) Explain the physiological process as mentioned above in Q2 (a)(i).
(iii) What is the purpose of keeping a snail in test-tube ‘B’?
(iv) Why does test-tube ‘B’ have more bubbles of oxygen?
(v) Given an example of a water plant that can be used in the above process.
(vi) Write the overall chemical equation for the above process.
Identify the odd one in each set : Transpiration, Photosynthesis, Phagocytosis, Guttation
Give one example of An aquatic plant used in the laboratory to demonstrate O2 liberation during photosynthesis
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Photosynthesis results in a gain in dry weight.
Fill in the blank:
Xanthophyll is ______ coloured pigment.
Fill in the blank:
CO2 enters the leaf through ______.
Name the following:
The category of organisms that prepare their own food from basic raw materials.
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.
Describe step by step, how the candidate proceeded to test the leaf for the presence of starch?
Oxygen given out during photosynthesis comes from water. Explain this statement.
How is the rate of photosynthesis affected when a green plant gets the green light?
Complete the following sentence with appropriate word:
A light reaction is a ___________ reaction.
Complete the following sentence with appropriate word:
4OH ——> _____ + O2
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
KOH absorbs CO2.
Choose the Correct Answer:
A plant is kept in a dark cupboard for about 48 hours before conducting any experiment on photosynthesis to:
Choose the Correct Answer:
Compensation point means the condition:
Choose the correct option.
For fixation of 6 molecules of CO2 and formation of one molecule of glucose in Calvin cycle, requires
Planting trees help in decreasing global warming.
What will happen if we remove plants from the aquarium?
A potted plant with variegated leafes was kept in dark for 24 hours and then placed in bright sunlight. Answer the following questions.
- Which aspect of photosynthesis is being tested in the above diagram?
- Why was the plant kept in the dark for 24 hours?
- After the starch test, what will be the colour of the yellow and green parts of the leaf? Give reasons to support your answer.
Distinguish between the following pairs on the basis of the word indicated in the bracket ( ).
Producers and Consumers (organisms)
