Test for Oxygen Requirement on Germinating Seeds

Q.

The ___ solution is used to test carbon dioxide gas.

Q.

Which of the following life processes releases energy required for body functions?

1. Nutrition

2. Digestion

3. Reproduction

4. Respiration

Q.

Unlike grown up plants, germinating seeds produce only ___ gas.

Q.

Suppose we conduct an experiment to demonstrate respiration in a green plant. What special precaution is required to be taken in it?

Q.

What is the inference of the experimental setup shown below?

1. Utilisation of oxygen in respiration

2. Utilisation of carbon dioxide in respiration

3. Utilisation of water vapour in respiration

4. All of the above

Q.

In the arrangement, Flask (A) contains germinating bean seeds and Flask (B) has dead boiled seeds with some antiseptic. Wet cotton provides water to both samples. A small tube containing soda lime is suspended in each flask for absorbing carbon dioxide.

What will happen when a burning paper is introduced into each flask after removing their corks?

1. The flame is immediately put off in flask B, but it continues for a short while in flask A

2. The flame is immediately put off in flask A, but it continues for a short while in flask B

3. The flame continues for a short while in both the flasks A and B

4. The flame is immediately put off in both the flasks A and B

Q. State True or False.
Soda lime releases Carbon Dioxide.

1. False
2. True

Q.

1. Both (a) and (b)
2. Synthesised
3. Oxidised
4. Reduced

Q. What is the value of R.Q. in germinating fatty seeds?

Q. Suppose we conduct an experiment to demonstrate respiration in a green plant. What
special precaution is required to be taken in it?

Q.

In the arrangement, flask (A) contains germinating bean seeds and flask (B) has dead boiled seeds with some antiseptic. Wet cotton provides water to both samples. A small tube containing soda lime is suspended in each flask for absorbing carbon dioxide.

What will happen when a burning paper is introduced into each flask after removing their corks?

1. The flame is immediately put off in flask A, but it continues for a short while in flask B

2. The flame is immediately put off in flask B, but it continues for a short while in flask A

3. The flame is immediately put off in both the flasks A and B

4. The flame continues for a short while in both the flasks A and B

Q. Describe one experiment each you would perform to demonstrate the following
phenomena:
The germinating seeds
(a) Produce heat,
(b) Give out carbon dioxide,
(c) Can respire even in total absence of air.

Q. Why is it usually difficult to demonstrate respiration in green plants?

Q.

Boiled seeds are used in the oxygen combustion experiment because:

1. None of the above.

2. Boiled seeds do not germinate.

3. Boiled seeds release oxygen.

4. Boiled seeds are free from germs.