Subject :NSO Class : Class 7
Examine the given experiment. Why has rise in temperature occurred ?
(A) Because of reproduction.
(B) Because of photosynthesis.
(C) Because of excretion.
(D) Because of respiration.
Ans 1:
Class : Class 9
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.
Ans 2:
Class : Class 9
The correct answer is option D
Ans 3:
Class : Class 9
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.
Ans 4:
Class : Class 9
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.
Ans 5:
Class : Class 9
Plants perform photosynthesis because they need to prepare their food and during night time they respire to break down the prepared food. In seeds food is already prepared and stored in the cotyledons and a seed only needs to break it down(so they respire producing co2). this co2 increases the temperature in the flask.