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प्रश्न
Fill in the blank:
_____________ is a chemical which absorbs oxygen of the air.
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उत्तर
Pyrogallate of potash is a chemical which absorbs oxygen of the air.
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संबंधित प्रश्न
Differentiate between Respiration and Combustion.
Do the plants respire all day and all night or only at night?
Fill in the blank :
Glycolysis occurs in the _______of the cells.
How do the following structures help in respiration in plants?
Stomata _____________
The following diagram refers to an apparatus which is used to demonstrate a physiological process:
Define the biological process shown in the experiment.
What do you understand by respiration?
Observe the figure carefully and answer the following questions.
- In which jar, will the amount of CO2 be the highest and why?
- In which jar, will the amount of CO2 be the lowest and why?
A food stall owner was preparing dough for making bhaturas. He added a pinch of yeast and sugar to the dough and left it in a warm place. After few hours, the dough had risen. There was a sour smell too.
Why did the dough rise?
A food stall owner was preparing dough for making bhaturas. He added a pinch of yeast and sugar to the dough and left it in a warm place. After few hours, the dough had risen. There was a sour smell too.
Why did the dough smell sour?
How does a tree trunk exchange gases with the environment although it lacks stomata?
