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प्रश्न
What are the by-products of autotrophic nutrition?
उत्तर
The by-product of autotrophic nutrition is oxygen, which is released through stomata.
संबंधित प्रश्न
Show with the help of a sketch that the plants are the ultimate source of food.
List the steps of preparation of temporary mount of a leaf peel to observe stomata.
Name the process by which plants make food.
(a) Name the pigment in leaves which absorbs sunlight energy.
(b) What is the colour of this pigment?
How do plants obtain food?
The cell organelle where photosynthesis occurs.
The cells which surround a stomatal pore.
Write a chemical equation to show the process of photosynthesis in plants.
The oxygen liberated during photosynthesis by green plants comes from:
(a) glucose
(b) water
(c) carbon dioxide
(d) chlorophyll
The internal energy (cellular energy) reserve in autotrophs is:
(a) proteins
(b) fatty acids
(c) glycogen
(d) starch
The opening and closing of the stomatal pores depends upon:
(a) oxygen
(b) water in guard cells
(c) temperature
(d) concentration of CO2 in stomata
An organism A which cannot move from one place to another, makes a simple food B from the substances C and D available in the environment. This food is made in the presence of a green coloured substance E present in organs F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. The food H gives a blue-black colour with dilute iodine solution.
(a) What is (i) organism A (ii) food B, and (iii) food H?
(b) What are C and D?
(c) Name (i) green coloured substance E, and (ii) organ F.
(d) What is the process G?
List the three events that occur during the process of photosynthesis. Explain the role of stomata in this process.
Distinguish between: Autotrophic nutrition and Heterotrophic nutrition.
Opening and closing of stomatal pore depends on ______.
The Figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are air tight and have been kept in light for 6 hours. Then, Iodine Test is performed with one leaf from each of the two plants X and Y.
Which of the following steps can be followed for making the apparatus air tight?
- placing the plants on glass plate
- using a suction pump.
- applying aseline to seal the bottom of jar.
- creating vacuum
Which of the following is most appropriate for aerobic respiration?
Differentiate between an autotroph and a heterotroph
