What mainly transports oxygen in human blood?
Answer and explanation
Correct answer: Haemoglobin
Haemoglobin is the iron-containing respiratory pigment inside red blood cells. In the lungs, it combines reversibly with oxygen to form oxyhaemoglobin, allowing oxygen to be carried efficiently through the blood; in tissues, oxygen is released for cellular respiration. Bile helps digest fats, saliva begins digestion, and urea is a nitrogenous waste, so none of these transports oxygen. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Haemoglobin
Why is this the correct answer?
Haemoglobin is the iron-containing respiratory pigment inside red blood cells. In the lungs, it combines reversibly with oxygen to form oxyhaemoglobin, allowing oxygen to be carried efficiently through the blood; in tissues, oxygen is released for cellular respiration. Bile helps digest fats, saliva begins digestion, and urea is a nitrogenous waste, so none of these transports oxygen. Therefore option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Transportation.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
