Ib sl biology Study guides, Class notes & Summaries
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IB SL BIOLOGY TOPIC 3 GENETICS COMPLETE STUDY GUIDE 2023.
- Exam (elaborations) • 27 pages • 2023
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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, or a 
section of DNA that codes for the formation of a polypeptide. 
x A gene occupies a specific position on a chromosome. 
x A typical animal or plant cell nucleus contains thousands of genes. The ...
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IB Biology SL - the Complete Summary for the IBDP Exam
- Summary • 65 pages • 2023
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This document is the complete summary required to pass the IB Biology Standard Level exams. It includes a detailed and comprehensive (yet concise) summary of Chapters 1-6 of the new textbook by Andrew Allott, as well as case studies you can mention during the exam, drawings and diagrams of relevant biological processes (such as mitosis / meiosis), tables, and class notes from a leading IB school. 
 
These notes have been used exclusively in order to achieve a 7 in the course, and have therefore ...
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IB SL BIOLOGY TOPIC 7 NUCLEIC ACIDS HL INTERNATIONAL BACCALAUREATE COMPLETE STUDY GUIDE 2023.
- Other • 12 pages • 2023
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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 cell produces large amount of viruses based on the genetic material in the cell 
• The cell bursts releasing copied viruses 
Experimental methodology: 
• Amino acid containing radioactive isotopes ...
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IB SL BIOLOGY TOPIC 1 CELL BIOLOGY QUESTIONS AND ANSWERS COMPLETE STUDY GUIDE 2023
- Summary • 5 pages • 2023
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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 not others in order 
for cell specialisation. 
3. Emergent properties: The idea that the sum of an organism is more than the 
parts interacting and combining. Living things become more complex as they...
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IB Biology SL Latest Update Graded A+
- Exam (elaborations) • 7 pages • 2024
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IB Biology SL Latest Update Graded A+ 
Organic compound A compound that contains carbon found in living organisms, excluding 
carbonates and oxides 
Enzyme Biological catalysts made of protein that speed up the rate of a reaction 
Active site The region of an enzyme where the substrate binds 
Denaturation A structural change in the 3-D shape of a protein causing the loss of its 
chemical properties 
Cell respiration The controlled release of enrgy from organic compiunds in cells to form 
ATP 
Ge...
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IB biology past essay questions HL and SL all units and mark scheme 2023 (A+)
- Exam (elaborations) • 50 pages • 2023
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IB biology past essay questions HL and 
SL all units and mark scheme 
2023 (A+) 
Outline what is meant by the trophic level of an organism with three examples from one 
named habitat. (4 max) - Answer-feeding level for an organism in a food chain 
naming of habitat (1 mark) 
naming three trophic levels correctly (1 mark) 
three examples forming a food chain from the named habitat (1 mark) 
2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms 
obtain energy. (6 ma...
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IB biology past essay questions HL and SL all units and mark scheme 2023 (A+)
- Exam (elaborations) • 50 pages • 2023
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IB biology past essay questions HL and 
SL all units and mark scheme 
2023 (A+) 
Outline what is meant by the trophic level of an organism with three examples from one 
named habitat. (4 max) - Answer-feeding level for an organism in a food chain 
naming of habitat (1 mark) 
naming three trophic levels correctly (1 mark) 
three examples forming a food chain from the named habitat (1 mark) 
2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms 
obtain energy. (6 ma...
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IB biology past essay questions HL and SL all units and mark scheme 2023 (A+
- Exam (elaborations) • 50 pages • 2023
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- $13.99
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IB biology past essay questions HL and 
SL all units and mark scheme 
2023 (A+) 
Outline what is meant by the trophic level of an organism with three examples from one 
named habitat. (4 max) - Answer-feeding level for an organism in a food chain 
naming of habitat (1 mark) 
naming three trophic levels correctly (1 mark) 
three examples forming a food chain from the named habitat (1 mark) 
2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms 
obtain energy. (6 ma...
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IB Biology - Unit 4 - Ecology SL/HL IB biology 11 SL Ecology topic. 2023 (A+)
- Exam (elaborations) • 5 pages • 2023
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IB Biology - Unit 4 - Ecology SL/HL 
IB biology 11 SL Ecology topic. 
2023 (A+) 
Species - Answer-A group of organisms that can interbreed and produce fertile 
offspring. 
Habitat - Answer-The environment in which a species normally lives or the location of a 
living organism. 
Population - Answer-A group of organisms of the same species who live in the same 
area at the same time. Two populations in the same species that are separated from 
each other may develop differences in character, b...
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Summary Biology
- Summary • 38 pages • 2023
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The Documents provide a good resource for quick revision and will help with IB Biology HL or SL
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