Grade 11
Life Sciences
Paper 1
Study Notes
,Disclaimer:
The following study notes, formula sheets, and summaries are intended for educa onal purposes and personal reference. They should not
replace official textbooks, classroom instruc on, or professional advice. While efforts have been made to ensure accuracy, these materials
may contain errors or omissions. Users are encouraged to cross-reference this informa on with authorita ve sources and consult with
educators or subject ma er experts for clarifica on or addi onal guidance. The use of these materials is at the reader's discre on, and the
creators and distributors of these materials are not responsible for any consequences resul ng from their use
, Contents
Introduc on ............................................................................................................................................ 5
Defini on ................................................................................................................................................ 5
Key Concepts: .......................................................................................................................................... 5
The Process of Photosynthesis ................................................................................................................ 5
Light-Dependent Reac ons ................................................................................................................. 5
Light-Independent Reac ons (Calvin Cycle) ........................................................................................ 5
Factors Affec ng the Rate of Photosynthesis ......................................................................................... 5
Greenhouse Systems............................................................................................................................... 6
Biological Importance ............................................................................................................................. 6
Balanced Diet .......................................................................................................................................... 7
Nutri on Process..................................................................................................................................... 7
Diges on ................................................................................................................................................. 7
Structure of the Diges ve System ........................................................................................................... 7
Importance of Roughage......................................................................................................................... 7
Role of Water in Facilita ng Movement of Food .................................................................................... 7
Absorp on of Digested Food .................................................................................................................. 8
Fate of Absorbed Food ............................................................................................................................ 8
Homeosta c Control of Blood Glucose Levels ........................................................................................ 8
Diabetes .................................................................................................................................................. 8
Problems Associated with Nutri on ....................................................................................................... 8
Malnutri on ............................................................................................................................................ 8
Hormonal Control ................................................................................................................................... 8
Dietary Supplements............................................................................................................................... 8
Tooth Decay Related to Diet.................................................................................................................... 9
Effects of Alcohol Abuse .......................................................................................................................... 9
Effects of Drug Abuse .............................................................................................................................. 9
Defini on .............................................................................................................................................. 10
The Mitochondria.................................................................................................................................. 10
Aerobic Respira on ............................................................................................................................... 10
Summary of the Process of Aerobic Respira on................................................................................... 10
Energy Carrier in a Cell .......................................................................................................................... 10
Anaerobic Respira on ........................................................................................................................... 10
In Plant Cells .......................................................................................................................................... 10
Life Sciences
Paper 1
Study Notes
,Disclaimer:
The following study notes, formula sheets, and summaries are intended for educa onal purposes and personal reference. They should not
replace official textbooks, classroom instruc on, or professional advice. While efforts have been made to ensure accuracy, these materials
may contain errors or omissions. Users are encouraged to cross-reference this informa on with authorita ve sources and consult with
educators or subject ma er experts for clarifica on or addi onal guidance. The use of these materials is at the reader's discre on, and the
creators and distributors of these materials are not responsible for any consequences resul ng from their use
, Contents
Introduc on ............................................................................................................................................ 5
Defini on ................................................................................................................................................ 5
Key Concepts: .......................................................................................................................................... 5
The Process of Photosynthesis ................................................................................................................ 5
Light-Dependent Reac ons ................................................................................................................. 5
Light-Independent Reac ons (Calvin Cycle) ........................................................................................ 5
Factors Affec ng the Rate of Photosynthesis ......................................................................................... 5
Greenhouse Systems............................................................................................................................... 6
Biological Importance ............................................................................................................................. 6
Balanced Diet .......................................................................................................................................... 7
Nutri on Process..................................................................................................................................... 7
Diges on ................................................................................................................................................. 7
Structure of the Diges ve System ........................................................................................................... 7
Importance of Roughage......................................................................................................................... 7
Role of Water in Facilita ng Movement of Food .................................................................................... 7
Absorp on of Digested Food .................................................................................................................. 8
Fate of Absorbed Food ............................................................................................................................ 8
Homeosta c Control of Blood Glucose Levels ........................................................................................ 8
Diabetes .................................................................................................................................................. 8
Problems Associated with Nutri on ....................................................................................................... 8
Malnutri on ............................................................................................................................................ 8
Hormonal Control ................................................................................................................................... 8
Dietary Supplements............................................................................................................................... 8
Tooth Decay Related to Diet.................................................................................................................... 9
Effects of Alcohol Abuse .......................................................................................................................... 9
Effects of Drug Abuse .............................................................................................................................. 9
Defini on .............................................................................................................................................. 10
The Mitochondria.................................................................................................................................. 10
Aerobic Respira on ............................................................................................................................... 10
Summary of the Process of Aerobic Respira on................................................................................... 10
Energy Carrier in a Cell .......................................................................................................................... 10
Anaerobic Respira on ........................................................................................................................... 10
In Plant Cells .......................................................................................................................................... 10
