Please explain the Reason part and why it is false?
Asked by patra04011965
30th June 2022,
8:26 AM
Answered by Expert
Answer:
Under neutral conditions, the amino acid will exist in its zwitterion form.
A zwitterion is a molecule that contains both a positive and a negative charge.
For the zwitterion amino acid, the negative charge comes from the carboxylate ion while the positive charge comes from the ammonium ion. I
f we lower the pH by increasing the concentration of hydrogen ion in solution, the carboxylate ion will be protonated to form the carboxylic acid. Therefore under low pH conditions, the amino acid exists predominantly in its ammonium form and so has a net positive charge.
On other hand, if we increase the pH of the solution by decreasing the concentration of hydrogen ion, eventually the ammonium ion will be deprotonated and will convert into the ammonia form.
This implies that under basic conditions (high pH), the amino acid exists predominantly in its carboxylate ion form and so bears a net negative charge.
The structure of an amino acid allows it to act as both an acid and a base. An amino acid has this ability because at a certain pH value (different for each amino acid) nearly all the amino acid molecules exist as zwitterions.
Answered by Expert
30th June 2022,
12:31 PM
Rate this answer
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
You have rated this answer /10
Your answer has been posted successfully!
RELATED STUDY RESOURCES :
Browse free questions and answers by Chapters
- 1 Biomolecules
- 2 Cell : The Unit of Life
- 3 Respiration in Plants
- 4 Animal Kingdom
- 5 Evolution
- 6 Ecosystem
- 7 The Living World
- 8 Biological Classification
- 9 Reproduction in Organisms
- 10 Sexual Reproduction in Flowering Plants
- 11 Human Reproduction
- 12 Reproductive Health
- 13 Principles of Inheritance and Variation
- 14 Molecular Basis of Inheritance
- 15 Biotechnology : Principles and Processes
- 16 Biotechnology and its Applications
- 17 Human Health and Disease
- 18 Microbes in Human Welfare
- 19 Strategies for Enhancement in Food Production
- 20 Organisms and Populations
- 21 Biodiversity and Conservation
- 22 Environmental Issues
- 23 Plant Kingdom
- 24 Morphology of Flowering Plants
- 25 Anatomy of Flowering Plants
- 26 Structural Organisation in Animals
- 27 Cell Cycle and Cell Division
- 28 Mineral Nutrition
- 29 Photosynthesis in Higher Plants
- 30 Plant Growth and Development
- 31 Digestion and Absorption
- 32 Breathing and Exchange of Gases
- 33 Body Fluids and Circulation
- 34 Excretory Products and their Elimination
- 35 Locomotion and Movement
- 36 Neural Control and Coordination
- 37 Chemical Coordination and Integration
- 38 Transport in Plants
Trending Tags
Latest Questions
JEE Main Mathematics
Asked by amaladelsingh
28th October 2020,
10:24 PM
CBSE X Biology
Asked by reenacharan2008
28th October 2020,
9:11 PM
