NCERT class 10
chap .6 Life processes all activity conclusion.
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Answers
Answer:
Activity 6.1
Here only the green part of the leaf turned blue. Thus, the test shows that only the green part of the leaf form starch.
Since, the green color of the leaf is because of the presence of chlorophyll, from this experiment we can also infer that chlorophyll is necessary for the formation of starch.
Activity 6.2
This experiment shows that carbon dioxide is necessary for photosynthesis and starch formation.
Activity 6.3
Saliva degrades the starch
Activity 6.4
This experiment demonstrates that our lung exhales carbon dioxide.
Activity 6.5
Yeast produces carbon dioxide which raises the dough and makes it spongy.
Activity 6.6
Atmospheric air contains a significant amount of oxygen (21%). So we need a lesser rate of breathing to fulfil our needs. As a result, human respiratory rate is only 12 to 20 breaths per minute.
Activity 6.7
Hemoglobin content acts as a marker of good health. Lower range indicates Anemia and malnutrition.
Activity 6.8
Plant release water molecules in the air. A plastic sheet does not allow these Activity 6.8 plant transpire molecules to escape. As a result, water droplets appear on the plastic sheet. Pot without plant does not get water molecules as there is no transpiration process going on. If in case few droplets appear then it is due to evaporation. Evaporation is a physical phenomenon, not a life process. In this case, the number of water droplets will be meagre.
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Answer:
Activity 6.1
Here only the green part of the leaf turned blue. Thus, the test shows that only the green part of the leaf form starch.
Since, the green color of the leaf is because of the presence of chlorophyll, from this experiment we can also infer that chlorophyll is necessary for the formation of starch.
Activity 6.2
This experiment shows that carbon dioxide is necessary for photosynthesis and starch formation.
Activity 6.3
Saliva degrades the starch
Activity 6.4
This experiment demonstrates that our lung exhales carbon dioxide.
Activity 6.5
Yeast produces carbon dioxide which raises the dough and makes it spongy.
Activity 6.6
Atmospheric air contains a significant amount of oxygen (21%). So we need a lesser rate of breathing to fulfil our needs. As a result, human respiratory rate is only 12 to 20 breaths per minute.
Activity 6.7
Hemoglobin content acts as a marker of good health. Lower range indicates Anemia and malnutrition.
Activity 6.8
Plant release water molecules in the air. A plastic sheet does not allow these Activity 6.8 plant transpire molecules to escape. As a result, water droplets appear on the plastic sheet. Pot without plant does not get water molecules as there is no transpiration process going on. If in case few droplets appear then it is due to evaporation. Evaporation is a physical phenomenon, not a life process. In this case, the number of water droplets will be meagre.
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