Anaerobic Respiration Experiment

Q.

Mercury is used in the experiment of anaerobic respiration to ensure that

1. carbon dioxide is not released out of the tube.

2. oxygen does not reach the seeds.

3. seeds remain moist.

4. water vapour is absorbed.

Q.

Which chemical is used in the experiment to demonstrate anaerobic respiration in plants?

1. Formalin

2. KOH

3. Carbonic acid

4. Ca(OH)₂

Q.

Fill in the blanks by choosing the correct alternative​

(ii) Water is absorbed by the seed mainly through _______ (entire surface/micropyle).

Q. There are two conical flasks A and B. Flask A has soaked seeds, while flask B has boiled dead seeds. What is the aim of this experiment?

1. To show that water is essential for the germination of seeds
2. To show the utilisation of oxygen in respiration
3. To show that chlorophyll is important for plants
4. To show the utilisation of carbon dioxide in photosynthesis

Q.

Which of the following compond is used to detect the presence of carbon dioxide in the experiment to demonstrate anaerobic respiration.

1. Sodium carbonate

2. Potassium hydroxide

3. Potassium carbonate

4. Sodium chloride

Q. Ganong's respirometer is employed for demonstrating

1. Heat during respiration.
2. CO${}_2$ during aerobic respiration..
3. CO${}_2$ during fermentation.
4. Evolution of oxygen during photosynthesis.

Q.

Name the following:

The phenomenon by which dead plant cells absorb water by surface attraction.

Q.

Why is antiseptic added to the flask containing boiled seeds?

1. To prevent the seeds from germinating.

2. To prevent bacterial growth on dead seeds.

3. To absorb additional carbon dioxide.

4. To help lime water to turn milky.

Q. The space above the mercury is filled with

1. Carbon dioxide
2. NaOH
3. NO${}_2$
4. None of the above