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IB SL BIOLOGY TOPIC 1 UPTO 9 SUMMARISED STUDY GUIDES 2023 UPDATED
IB SL BIOLOGY TOPIC 1 UPTO 9 SUMMARISED STUDY GUIDES 2023 UPDATED
[Montrer plus]IB SL BIOLOGY TOPIC 1 UPTO 9 SUMMARISED STUDY GUIDES 2023 UPDATED
[Montrer plus]IB BIOLOGY TOPIC 1 CELL 
BIOLOGY QUESTIONS AND 
ANSWERS COMPLETE 
 STUDY GUIDE 2023 
IB Biology Topic 1: Cell Biology 
1. Cell theory: The theory that cells form the fundamental structural and functional 
units of all living organisms. 
2. Differentiation: The expression of a particular gene(s) and ...
Aperçu 2 sur 5 pages
Ajouter au panierIB BIOLOGY TOPIC 1 CELL 
BIOLOGY QUESTIONS AND 
ANSWERS COMPLETE 
 STUDY GUIDE 2023 
IB Biology Topic 1: Cell Biology 
1. Cell theory: The theory that cells form the fundamental structural and functional 
units of all living organisms. 
2. Differentiation: The expression of a particular gene(s) and ...
IB BIOLOGY TOPIC 2 
MOLECULAR BIOLOGY 
COMPLETE 
 STUDY GUIDE 2023 
Topic 2.1 – Molecules to Metabolism 
x Atom: It is a single uncharged particle of an element. 
E.g. H, O, N, S, Na, Fe, etc. 
x Molecule: A group of two or more atoms held together by covalent bonds. 
E.g. H2O, N2, CO2, etc. 
x Io...
Aperçu 4 sur 35 pages
Ajouter au panierIB BIOLOGY TOPIC 2 
MOLECULAR BIOLOGY 
COMPLETE 
 STUDY GUIDE 2023 
Topic 2.1 – Molecules to Metabolism 
x Atom: It is a single uncharged particle of an element. 
E.g. H, O, N, S, Na, Fe, etc. 
x Molecule: A group of two or more atoms held together by covalent bonds. 
E.g. H2O, N2, CO2, etc. 
x Io...
IB BIOLOGY TOPIC 4 
ECOLOGY COMPLETE 
 STUDY GUIDE 2023 
Topic 4.1: Ecology – Species, communities and ecosystem 
The continued survival of living organisms including humans depends on sustainable communities. 
• Understanding: Species are groups of organisms that can potentially interbreed to p...
Aperçu 2 sur 8 pages
Ajouter au panierIB BIOLOGY TOPIC 4 
ECOLOGY COMPLETE 
 STUDY GUIDE 2023 
Topic 4.1: Ecology – Species, communities and ecosystem 
The continued survival of living organisms including humans depends on sustainable communities. 
• Understanding: Species are groups of organisms that can potentially interbreed to p...
IB BIOLOGY TOPIC 3 
GENETICS COMPLETE 
 STUDY GUIDE 2023. 
HKEXCEL LTD. 1 
Topic 3.1 – Genes 
Genetics 
x It is the study of variation and inheritance. The basic unit of inheritance is a gene. 
Gene 
x A gene is defined as a heritable factor that controls a specific characteristic for an organism,...
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Ajouter au panierIB BIOLOGY TOPIC 3 
GENETICS COMPLETE 
 STUDY GUIDE 2023. 
HKEXCEL LTD. 1 
Topic 3.1 – Genes 
Genetics 
x It is the study of variation and inheritance. The basic unit of inheritance is a gene. 
Gene 
x A gene is defined as a heritable factor that controls a specific characteristic for an organism,...
IB BIOLOGY TOPIC 6 
HUMAN PHYSIOLOGY 
COMPLETE 
 STUDY GUIDE 2023 
HKEXCEL LTD. 1 
Topic 6.1 – Digestion and absorption 
The human digestive system 
 The parts of the human digestive system are as follows: 
 Mouth: Ingestion and chewing of food particles. Saliva is secreted in the mouth whic...
Aperçu 4 sur 37 pages
Ajouter au panierIB BIOLOGY TOPIC 6 
HUMAN PHYSIOLOGY 
COMPLETE 
 STUDY GUIDE 2023 
HKEXCEL LTD. 1 
Topic 6.1 – Digestion and absorption 
The human digestive system 
 The parts of the human digestive system are as follows: 
 Mouth: Ingestion and chewing of food particles. Saliva is secreted in the mouth whic...
Hershey & Chase experiment 
Experiment target: T2 Bacteriophage (a kind of virus, containing DNA and a protein coat) & E.Coli 
bacteria 
How does virus work? 
• Virus injects their genetic material into cell 
• Non-genetic part of the virus (protein coat) remains outside the cell 
• Infected c...
Aperçu 2 sur 12 pages
Ajouter au panierHershey & Chase experiment 
Experiment target: T2 Bacteriophage (a kind of virus, containing DNA and a protein coat) & E.Coli 
bacteria 
How does virus work? 
• Virus injects their genetic material into cell 
• Non-genetic part of the virus (protein coat) remains outside the cell 
• Infected c...
Water properties: 
• Cohesion: like molecules attract to each other 
• Water is a polar molecule that forms a hydrogen bond with other water molecules. 
• The negatively charged oxygen atom of one water molecule forms a hydrogen bond with a positively 
• charged hydrogen atom of another wate...
Aperçu 2 sur 13 pages
Ajouter au panierWater properties: 
• Cohesion: like molecules attract to each other 
• Water is a polar molecule that forms a hydrogen bond with other water molecules. 
• The negatively charged oxygen atom of one water molecule forms a hydrogen bond with a positively 
• charged hydrogen atom of another wate...
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