Respiration

Q.

State true or false.
Plants take in oxygen and give out carbon dioxide during respiration.

1. True

2. False

Q.

What are the factors which shift the O₂-Hb dissociation curve?

Q. Why respiration is considered as an exothermic reaction ?

Q.

Sugar + Oxygen $\to$ Carbon dioxide + Water + Energy

Which process is being explained here?

1. Photosynthesis

2. Respiration

3. Combustion

4. Both (A) and (B)

Q.

How many NADH is produced in glycolysis?

Q.

Inhaled air contains more water vapour than exhaled air.

1. True

2. False

Q.

How does pH affect hemoglobins affinity for oxygen?

Q.

Do cockroaches have blood?

Q.

Which gas in air is essential for respiration in humans?

1. Oxygen

2. Nitrogen

3. Carbon monoxide

4. Carbon dioxide

Q.

Two green plants are kept separately in oxygen-free containers, one in the dark and the other in continuous light. Which one will live longer? Give reasons.

Q.

Air is present in water.

1. True

2. False

Q.

In which one of the following do the two names refer to the same thing?

1. Tricarboxylic acid cycle and Citric acid cycle

2. Krebs’ cycle and Calvin cycle

3. Tricarboxylic acid cycle and Urea cycle

4. Citric acid cycle and Calvin cycle

Q.

What is myoglobin?

Q.

What organs are attached to the two bronchi?

Q.

Do Insects Have Blood?

Q.

How much air is breathed by a normal healthy person in 24 hrs ?

Q.

What is phonation?

Q. Which of the following statements are true about the human body?

1. The human body is only made up of solid substance.
2. The human body is only made up of liquid substance.
3. The human body inhales gaseous substance.
4. The human body contains solid, liquid and gaseous substances.

Q.

Plants take in oxygen and give out carbon dioxide during respiration.

1. True

2. False

Q.

What happens when the ${\mathrm{O}}_2$ hb dissociation curve shifts?

Q. gas plays a very important role in the respiration of human beings.

1. Nitrogen
2. Oxygen
3. Carbon dioxide

Q.

Plants : ________:: Animals: Lactic Acid

Q.

Is energy required for transport of glucose within the cell?

Q. Explain why respiration is a chemical change?

Q. Respiration is a chemical change because:

1. new substances are formed.
2. change in mass.
3. Both a and b
4. change is temporary.

Q.

Name the processes which maintain the balance between oxygen and carbon dioxide in the air. How is it done?

Q.

What occurs during glycolosis?

Q.

The products of respiration are carbon dioxide and ……….

Q. Carbon dioxide and oxygen are balanced in the atmosphere by _____________.

1. combustion & galvanisation
2. ozonolysis & combustion
3. respiration & combustion
4. photosynthesis & respiration

Q. Differentiate between :
Cellular respiration and combustion