Academic session 2026-27, Chapter 14 in the current curriculum.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter Breathing and Exchange of Gasses. This page offers a step-by-step solution to the specific question from Exercise 0, Question 1:
State the different modes of CO2 transport in blood.
. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.State the different modes of CO2 transport in blood.
Carbon dioxide is carried by blood in three forms: physical solution, bicarbonate ions and carbamino- haemoglobin.
(i) Physical solution: A very small amount of carbon dioxide about 7% dissolved in the plasma and is carried as a physical solution.
(ii) Bicarbonate ions: About 70 % of carbon dioxide released by respiring tissue cells diffuses into the plasma and then into the red blood corpuscles. Here, the carbon dioxide combines with water to form carbonic acid and make carbonic acid and this reaction is catalyzed by enzyme carbonic anhydrase. Then carbonic acid dissociated into hydrogen ion and bicarbonate ions. And these bicarbonate ions are transported in the RBCs where most of them diffuses into the plasma to be carried by it.
(iii) Carbaminohaemoglobin: Approx. 23% of CO2 enters the RBCs loosely combines with the amino group (- NH2) of the reduced Haemoglobin to form Carbaminohaemoglobin and this reaction releases oxygen.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Stay updated with our latest educational content and study tips
It’s not about starting over if you took a break to care for children, take care of yourself, be healthy or for any other reason. This is a realistic strategy for the recovery of skills, selection of the right job, and overcoming the resume problem. One year, three years or 10 years of a career … Read more
Read MoreThere’s no need to score 95% or achieve a JEE/NEET rank. You don’t need to score 95% or rank in JEE/NEET to build a solid career. A candid and pragmatic guide to the routes that actually work for students who have an average mark and what to do when faced with the options. If … Read more
Read MoreAI tools, online platforms that are much cheaper than coaching centres and the changing idea of what “structure” even means have upended this argument more in the past two years than in the decade preceding it. Here’s what is really the case for 2026 – and what has actually stayed the same. If you look … Read more
Read MoreStarting to make a new career after 30 isn’t a start from scratch. Marketing, teaching, financial, retail, healthcare, sales and other professionals can pursue careers in technology by applying the existing knowledge and skills they have acquired to new technology skills. There are various ways to enter the technology industry, such as in IT support, … Read more
Read MoreCalculate percentage from obtained marks and total marks.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 1: State the different modes of CO2 transport in blood.....
Fresh educational articles and updates.
Most-read articles from SaralStudy.
Fast access to frequently used study resources.
Recently viewed articles based on SaralStudy activity.
Add Comment