Carbon Dioxide Is Given out during Breathing

Q.

Select the favorable conditions required for the formation of oxyhaemoglobin at the alveoli.

1. Low pO_2, High pCO₂, more H⁺, higher temperature.

2. High pO_2, Low pCO₂, less H⁺, lower temperature.

3. High pO_2, High pCO₂, less H⁺, Higher temperature.

4. Low pO_2, Low pCO₂, more H⁺, higher temperature.

Q.

How would you prove that the air you breathe out is warmer?

Q.

What would you observe when: Hydrochloric acid is added to calcium carbonate?

Q.

The inhaled air contains more carbon dioxide than exhaled air

1. True
2. False

Q.

What happens when Sugar (molasses) is fermented?

Q. In an experiment to check the amount of carbon dioxide, atmospheric air and exhaled air is passed through lime water. Which of the following turns lime water milky?

1. None of the above
2. Exhaled air
3. Atmospheric air
4. Both exhaled air and atmospheric air

Q.

Name a solution that turns milky on reacting with CO₂.

Q. In an experiment to check the amount of carbon dioxide, atmospheric air and exhaled air is passed through lime water. If the rate of changing lime water milky in the tube containing exhaled air is 10. What is the approximate rate of changing lime water milky in the tube containing atmospheric air?

1. 30
2. 40
3. 5
4. Lime water doesn't turn milky in this tube

Q. Emile did an experiment to compare the rate of respiration in woodlice (small crustaceans) and maggots (the larvae of houseflies). The diagram shows how he set up his experiment. Limewater is a clear liquid. It goes cloudy when carbon dioxide is present.

Q. Blood carries $C{O}_2$ mainly in which form?

1. $HbC{O}_2$
2. Carbonic acid
3. $NaC{O}_2$
4. $HbC{O}_2$ and carbon monoxide.

Q. In the experimental set up on '$C{O}_2$ is released during respiration, ' if one forgets to keep the vial with KOH in the conical flask, how will the result vary? Give details.

Q. Inhaled air contains more carbon dioxide.

1. False
2. True

Q. Lime water turns milky in the presence of oxygen.

1. True
2. False

Q. Name the chemical solution or chemical used to identify the release of $C{O}_2$ gas during respiration

Q. In an experiment to check the amount of carbon dioxide, atmospheric air and exhaled air is passed through lime water. Which of the following is the best procedure to collect atmospheric air for analysis?

1. Collect air from higher altitudes let air enter the tube using a motor
2. Suck the air inside the tube on one side, atmospheric air enters from another end
3. Any of the above
4. Blow the air from the mouth

Q. How many ATP is needed to generate one molecule of RuDP in Clavin Cycle?

1. 6
2. 2
3. 1
4. 18