The majority of carbon dioxide produced by our body cells is transported to the lungs

• dissolved in the blood

• as bircarbonates

• as carbonates

• as carbonates

Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of :

• Residual Volume

• Inspiratory Reserve Volume

• Tidal Volume

• Tidal Volume

Which of the following is an occupational respiratory disorder?

• Anthracis

• Silicosis

• Emphysema

• Botulism

Match the following columns

Column I		Column II
A.	Molecular oxygen	1.	α-ketoglutaric acid
B.	Electron acceptor	2.	Hydrogen acceptor
C.	Pyruvate dehydrogenase	3.	Cytochrome - C
D.	Decarboxylation	4.	Acetyl Co-A

• A	B	C	D
  2	3	4	1

• A	B	C	D
  3	4	2	1

• A	B	C	D
  2	1	3	4

• A	B	C	D
  2	3	1	2

What is another name for the windpipe?

• Trachea

• Larynx

• Oesophagus

• Lungs

Phase common in aerobic and anaerobic respiration is

• Krebs’ cycle

• Glycolysis

• Glycogenolysis

• ETS

Penumotoxic centre which a moderate the function of the respiratory rhythm centre is present at

• Pons region in brain

• Thalamus

• Spinal cord

• Right cerebral hemisphere

Which type of cells is absent in sponges?

• Trophocytes

• Myocytes

• Archeocytes

• Cnidocytes

The respiratory quotient during cellular respiration would depend on the

• Nature of the enzymes involved

• Nature of the substrate

• Amount of carbon dioxide released

• Amount of oxygen utilized

110.

Ethylene is related with

• Aerobic respiration

• Climacteric phenomenon

• Anaerobic respiration

• Fermentation