Respiration in Humans

Q. Which pathway is common to both aerobic and anaerobic respiration?

1. Electron transport chain
2. Glycolysis
3. Kreb's cycle
4. Calvin cycle

Q.

The __ checks the entry of food into the respiratory tract.

Q.

Epiglottis guards the opening of

1. Eustachian tubes

2. Oesophagus

3. Larynx

4. Internal nares

Q. Identify the structure shown in the diagram

1. Nephron
2. Villi
3. Alveoli
4. Neuron

Q.

The narrowest and most numberous tubes of lungs are termed as

1. Bronchus

2. Bronchioles

3. Alveoli

4. None of these

Q. Air moves from outside into the lungs through __.

Q.

The structure which prevents the entry of food into respiratory tract is

1. Glottis

2. Larynx

3. Epiglottis

4. Pharynx

Q.

Nasal chambers are separated from the oral cavity by __.

Q.

Label the parts of the respiratory system

1. (i) –C, ii –B, (iii)- F, (iv) – D, (v) – G, (vi) – A, (vii) – E

2. (i) –D, ii – C, (iii)- A, (iv) – B, (v) – G, (vi) – F, (vii) – E

3. (i) –F, ii – G, (iii)- E, (iv) – D, (v) – B, (vi) – A, (vii) – C

4. (i) –A, ii – G, (iii)- B, (iv) – C, (v) – E, (vi) – D, (vii) – F

Q. Where is lactic acid formed during respiration?

1. Muscles
2. Kidney
3. Neuron
4. WBC