Which is the correct sequence of steps in respiration? a. Transport of gases by the blood b. Breathing or pulmonary ventilation c. Cellular respiration d. Diffusion of O2 and CO2 between blood and tissues e. Diffusion of O2 and CO2 across alveolar membrane

Question

Which is the correct sequence of steps in respiration? a. Transport of gases by the blood b. Breathing or pulmonary ventilation c. Cellular respiration d. Diffusion of O2 and CO2 between blood and tissues e. Diffusion of O2 and CO2 across alveolar membrane (A) b → e → a → d → c (B) b → a → e → c → d (C) b → d → a → e → c (D) b → e → d → a → c

Tardigrade Admin · Accepted Answer

Respiration involves the following steps :
(i) Breathing or pulmonary ventilation by which atmospheric air is drawn in and

C O_{2}

rich alveolar air is released out.
(ii) Diffusion of gases

(O_{2} an d C O_{2})

across alveolar membrane.
(iii) Transport of gases by the blood.
(iv) Diffusion of

O_{2}

and

C O_{2}

between blood and tissues.
(v) Utilisation of

O_{2}

by the cells for catabolic reactions and resultant release of

C O_{2}

( cellular respiration).

Q. Which is the correct sequence of steps in respiration?
$a$ . Transport of gases by the blood
$b$ . Breathing or pulmonary ventilation
$c$ . Cellular respiration
$d$ . Diffusion of $O_{2}$ and $C O_{2}$ between blood and tissues
$e$ . Diffusion of $O_{2}$ and $C O_{2}$ across alveolar membrane

$b \to e \to a \to d \to c$

$b \to a \to e \to c \to d$

$b \to d \to a \to e \to c$

$b \to e \to d \to a \to c$

Q. Which is the correct sequence of steps in respiration? a. Transport of gases by the blood b. Breathing or pulmonary ventilation c. Cellular respiration d. Diffusion of O2​ and CO2​ between blood and tissues e. Diffusion of O2​ and CO2​ across alveolar membrane

b→e→a→d→c

b→a→e→c→d

b→d→a→e→c

b→e→d→a→c

Q. Which is the correct sequence of steps in respiration?
$a$ . Transport of gases by the blood
$b$ . Breathing or pulmonary ventilation
$c$ . Cellular respiration
$d$ . Diffusion of $O_{2}$ and $C O_{2}$ between blood and tissues
$e$ . Diffusion of $O_{2}$ and $C O_{2}$ across alveolar membrane

$b \to e \to a \to d \to c$

$b \to a \to e \to c \to d$

$b \to d \to a \to e \to c$

$b \to e \to d \to a \to c$