Q. 245.0( 2 Votes )
The following experiment was set-up to show that a gas is given out during respiration. But there was no rise in the level of water. Why did it happen?
The KOH (potassium hydroxide) test tube placed within the conical flask absorbs the moisture, oxygen, O2 in the flask and released CO2 due to which the level of water rises in the tube due to partial vacuum created by absorbed CO2. An equal volume of water rises. But here, there was no rise in the level of water maybe because of experimental errors like the cork might not have been properly air-tight or maybe the KOH prepared was not fresh or maybe the germinating seeds were not kept moist etc.
Rate this question :
Which part of the root is involved in the exchange of respiratory gases in plants?Xam idea - Science
When does anaerobic respiration occurs in our body? Give an example.All In One Science
List the steps of preparation of temporary mount of a leaf peel to observe stomata.Science - Board Papers
Name the plant hormone which helps in stomata opening?Science Lab Manual
Give an Example of a plant in which stomata is absent?Science Lab Manual
A, Band Care three living organisms. The organism A is a unicellullar fungus which can live without air. It is used in the commercial production of an organic compound P from molasses. The organism B is a unicellular animal which lives in water and feeds and moves by using pseudopodia. It breathes through an organelle Q. The organism C is a tiny animal which acts as a carrier of malarial parasite. It breathes and respires through a kind of tiny holes Rand air-tubes Sin its body.
(a) What are organisms (i) A (ii) B, and (iii) C?
(b) Name (i) P (ii) Q (iii) R, and (iv) S.
(c) Which organism/ organisms undergo aerobic respiration?
(d) Which organism/ organisms undergo anaerobic respiration?Lakhmir Singh & Manjit Kaur- Biology
State the function of ATP.All In One Science
What is fermentation?Science Lab Manual