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Biology XI Part-II

By Dr. Sunita Farkya   |   DESM, NCERT, New Delhi
Learners enrolled: 850
The reductionist approach to study of life forms resulted in increasing use of physio-chemical concepts and techniques. Majority of these studies employed either surviving tissue model or straightaway cell free systems. An explosion of knowledge resulted in molecular biology. Molecular physiology became almost synonymous with biochemistry and biophysics. However, it is now being increasingly realised that neither a purely organismic approach nor a purely reductionistic molecular approach would reveal the truth about biological processes or living phenomena. Systems biology makes us believe that all living phenomena are emergent properties due to interaction among components of the system under study. Regulatory network of molecules, supra molecular assemblies, cells, tissues, organisms and indeed, populations and communities, each create emergent properties. This course brings to you the chapters various physiological processes like digestion, exchange of gases, blood circulation, locomotion and movement, coordination and regulation of body events at the organismic level.
The description of structure and variation of living organisms over a period of time, ended up as two, apparently irreconcilable perspectives on biology. The two perspectives essentially rested on two levels of organisation of life forms and phenomena. One described at organismic and above level of organisation while the second described at cellular and molecular level of organisation. The first resulted in ecology and related disciplines. The second resulted in physiology and biochemistry. Description of physiological processes, in flowering plants as an example, is what is given in the chapters in this unit. The processes of mineral nutrition of plants, photosynthesis, transport, respiration and ultimately plant growth and development are described in molecular terms but in the context of cellular activities and even at organism level. Wherever appropriate, the relation of the physiological processes to environment is also discussed.

Summary
Course Status : Completed
Course Type : Core
Duration : 24 weeks
Category :
  • School
Level : School
Start Date : 20 Apr 2023
End Date : 30 Sep 2023
Enrollment Ends : 31 Aug 2023
Exam Registration Ends : 18 Sep 2023
Exam Date : 25 Sep 2023 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.


Page Visits



Course layout

Chapter No.

Module No.

Module Name

Chapter 11

Module 1

Transport in Plants Part 1

Module 2

Transport in Plants Part 2

Module 3

Transport in Plants Part 3

Chapter 12

Module 4

Plant Physiology (Mineral Nutrition): Part – 1

Module 5

Plant Physiology (Mineral Nutrition): Part – 2

Chapter 13

Module 6

Early Experiments of Photosynthesis

Module 7

Light Reactions of Photosynthesis

Chapter 14

Module 8

Respiration in Plants: Part – 1

Module 9

Respiration in Plants: Part – 2

Module 10

Respiration in Plants: Part – 3

Chapter 15

Module 11

Plant Growth and Development: Part – 1

Module 12

Plant Growth and Development: Part – 2

Module 13

Plant Growth and Development: Part – 3

Chapter 16

Module 14

Digestive and Absorption - Part 1

Module 15

Digestive and Absorption - Part 2

Module 16

Digestive and Absorption - Part 3

Chapter 17

Module 17

Breathing and Exchange of Gases

Module 18

Mechanism of Respiration

Chapter 18

Module 19

Body Fluids and Circulation: Part – 1

Module 20

Body Fluids and Circulation: Part – 2

Module 21

Body Fluids and Circulation: Part – 3

Module 22

Body Fluids and Circulation: Part – 4

Chapter 19

Module 23

The concept of excretion

Module 24

Excretory Products and Their Elimination

Chapter 20

Module 25

Locomotion and Movement: Part – 1

Module 26

Locomotion and Movement: Part – 2

Module 27

Locomotion and Movement: Part – 3

Module 28

Locomotion and Movement: Part – 4

Chapter 21

Module 29

General Organization of Nervous System

Module 30

Brain and Spinal cord

Module 31


Neuron and Transmission of Nerve Impulse

Module 32

Structure and Physiology of Eye and Ear

Chapter 22

Module 33

Chemical Coordination and Integration – Part 1

Module 34

Chemical Coordination and Integration – Part 2

Module 35

Chemical Coordination and Integration – Part 3

Final Assessment

Books and references

NCERT "Biology" for Class - XI

Instructor bio

Dr. Sunita Farkya

DESM, NCERT, New Delhi
Dr. Sunita Farkya is presently working as a Professor in the Department of Education in Science and Mathematics, NIE, NCERT, New Delhi. She has around 28 years of Research/ Teaching experience. She has been CSIR fellow since 1991, Later on she worked as Research Associate and Pool Scientist of CSIR. She has persuaded her Post Doctoral Research in Indian Institute of Technology, Delhi. Professor Farkya has completed several research projects in Biology and science education and published papers in indexed journals. She has coordinated number of books in Science for school students. She is executive editor of Journal of NCERT, School Science.. Her areas of interest are Plant Biotechnology, Production of Secondary metabolites, Applied Microbiology, Biological Control of weeds, science education and Biology education (Content cum pedagogy in teaching for improving learning at all stages of school education). Presently she is working of several research projects and popularisation of science) Her special interests in the experimental Techniques and Skills are Plant tissue culture techniques: Development of cultures, genetic transformation, production of secondary metabolites from plant cell cultures, cultivation in bioreactors; upstream and downstream processing (Chromatography – TLC, HPLC, Column chromatography, Electrophoresis – Gel and Paper electrophoresis,), extraction, isolation and structure elucidation of phytoconstituents. Molecular Biology Techniques: Genomic DNA extraction, Polymerase Chain Reaction (PCR), plasmid isolation, genetic confirmation. Microbial Techniques: Aseptic culture handling, in-vivo efficacy testing. And miscellaneous: enzyme extraction and activity assay, toxicity studies.

Course certificate

The final assessment will be conducted in the last week of the course i.e. from 25th September to 30 September 2023. The participants will get completion certificate if they score 60% and above in the final assessment.


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