Carboxyhemoglobin (10-20%) is formed when CO2 combines with:
Correct answer: A. Amino group of haemoglobin
- A. Amino group of haemoglobin
- B. Haem portion of haemoglobin
- C. Iron part of haemoglobin
- D. Plasma proteins
Explanation
Factual Recall. About 70% CO2is transported in the form of bicarbonate ions and about 20% is transported carboxyhaemoglobin. Carboxyhaemoglobin is formed when carbon dioxide combines with amino group of haemoglobin.
Last updated
About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
Practise Digestion
680 free Digestion MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A/An _ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.
A cavity bounded by ribs and diaphragram is called:
A complex cartilaginous structure surrounding the upper end of the trachea:
A condition with abnormal amount of fats is called:
A hormone called _ controls the secretion of gastric juice.