Define Bohr effect and Haldane effect.

Short/Brief Note

Bohr effect: Bohr effect is the shift of oxyhaemoglobin dissociation curve due to change in partial pressure of CO₂ in blood.
Haldane effect: The amount of CO₂ that can be transported in the blood is influenced by the percent saturation of haemoglobin with oxygen. The lower the amount of oxyhaemoglobin (Hb-O₂), the higher the CO₂ carrying capacity of the blood, this relationship is known as the Haldane effect.

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Chapter 8: Respiration and Circulation - Short Answer 1

Chapter 8 Respiration and Circulation
Short Answer 1 | Q 2

Q 9 | 2 marks

Q 12 | 2 marks

Differentiate between cyclic and non-cyclic photophosphorylation.

Distinguish between inspiration and expiration.

When 1500 mL air is in the lungs, it is called ______.

Make the correct pairs.

Column – I	Column – II
(P) IC	i. maximum volume of air breathe in after forced.
(Q) EC	ii. Volume of air present after expiration in lungs.
(R) VC	iii. Volume of air inhaled after expiration.
(S) FRC	iv. Volume of air present after expiration in lungs.

For which of the following reasons stepwise cellular respiration is useful?

Identify the CORRECT statement.

Whenever we feel drowsy or sleepy, we start yawning. Does yawning help us in any way?

The partial pressures (in mm Hg) of oxygen (O₂) and carbon dioxide (CO₂) at alveoli (the site of diffusion) are ______

Which one has the lowest value?

What is oxygen dissociation curve?