Home
Class 12
BIOLOGY
Which factors are favourable for the for...

Which factors are favourable for the formation of oxyhaemoglobin ?
(a)High acidity
(b)Low `P_(CO_(2))`
(c) Lesser `H^(+)` concentration
(d) Lower temperature

A

Lesser `H^(+)` concentration

B

a, b and c

C

b and c

D

a, b, c and d

Text Solution

AI Generated Solution

The correct Answer is:
To determine which factors are favorable for the formation of oxyhemoglobin, we need to analyze each option provided in the question based on the physiological principles of oxygen binding to hemoglobin. ### Step-by-Step Solution: 1. **Understanding Oxyhemoglobin Formation**: Oxyhemoglobin is formed when oxygen binds to hemoglobin in the red blood cells. The affinity of hemoglobin for oxygen is influenced by various factors including pH, partial pressure of carbon dioxide (P_CO2), hydrogen ion concentration (H+), and temperature. 2. **Analyzing Each Option**: - **(a) High Acidity**: High acidity (which corresponds to a low pH) actually reduces the affinity of hemoglobin for oxygen. This is known as the Bohr effect, where increased acidity (higher concentration of H+) leads to a rightward shift of the oxyhemoglobin dissociation curve, making it harder for hemoglobin to bind oxygen. Thus, this factor is **not favorable** for the formation of oxyhemoglobin. - **(b) Low P_CO2**: A low partial pressure of carbon dioxide is favorable for the formation of oxyhemoglobin. When CO2 levels are low, hemoglobin can bind oxygen more readily. Therefore, this factor is **favorable** for the formation of oxyhemoglobin. - **(c) Lesser H+ Concentration**: A lower concentration of hydrogen ions (which corresponds to higher pH) increases the affinity of hemoglobin for oxygen. This means that when there are fewer H+ ions, hemoglobin is more likely to bind oxygen. Hence, this factor is **favorable** for the formation of oxyhemoglobin. - **(d) Lower Temperature**: Lower temperatures increase the affinity of hemoglobin for oxygen. When the temperature is lower, hemoglobin holds onto oxygen more tightly, which is favorable for the formation of oxyhemoglobin. Thus, this factor is also **favorable**. 3. **Conclusion**: Based on the analysis: - High acidity (a) is **not favorable**. - Low P_CO2 (b) is **favorable**. - Lesser H+ concentration (c) is **favorable**. - Lower temperature (d) is **favorable**. ### Final Answer: The factors that are favorable for the formation of oxyhemoglobin are: - (b) Low P_CO2 - (c) Lesser H+ concentration - (d) Lower temperature
Promotional Banner

Similar Questions

Explore conceptually related problems

Which of the following factorss ar favorable for the formation of oxyhemoglobin ? (a) High p_(O_(2)) , low p_(CO_(2)) (b) Lesser H^(+) concentration, lower temperature ( c) Low p_(O_(2)) , high CO_(2) (d) High H^(+) , higher temperature

Which of the following factors are favorable for the formation of oxyhaemoglobin ? I. high pO_2 II. low pCO_2 III. lesser H^+ concentration IV. lower temperature

In the alveoli, the factors favourable for the formation of oxyhaemoglobin are a. Low pO_(2)" b. High "pO_(2) c. Low pCO_(2)" d. High "pCO_(2) e. Lower temperature " " f. Highertemperature g. Low pH " " h. High pH

Which factor in tissues favours the formation of HCO_(3)^(-) and H^(+) ions in the blood?

Which factors favour the binding of CO_(2) with Hb in tissues?

Which of the following is a not a favourable condition for the formation of ionic bond (A) Low charge on cation (B) Larger size of cation (C) High charge on anion (D) Low IP of metal

In which the following factors can interfere in binding of O_(2) with haemoglobin. A-P_(CO_(2)) B-H^(+) ion concentration C-Temperture

Which statements are correct for oxyhaemoglobin dissociation curve ? (A) This curve is sigmoid (B) When CO_(2) concentration increases, then this curve shifts towards right side (C) Low temperature is favourable for dissociation of oxygen grom oxyhaemoglobin (D) Binding of oxygen with haemoglobin is primarily related to partial pressure of O_(2)