Ib bio Samenvattingen, Notities en Examens
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IB Biology Topic 4 : Ecology Latest Version Graded A+
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IB Biology Topic 4 : Ecology Latest 
 
Version Graded A+ 
 
Ecology The science of the relationships between organisms and their environments. 
 
Organism an individual living thing that uses energy, reproduces, responds, grows, and 
develops 
 
Species a group of similar organisms that can breed and produce fertile offspring 
 
Population group of individuals of the same species that live in the same area 
 
Community all living, or biotic, things in an area 
 
Ecosystem all biotic (living) and...
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IB Biology: Evolution Questions and Answers Already Passed
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IB Biology: Evolution Questions and 
 
Answers Already Passed 
 
What is a theory? A comprehensive explanation of some aspect of nature (vs a hypothesis, 
which is just a prediction as to the result of an experiment). 
 
What were some ideas from Darwin's time that influenced his work? French naturalist 
Buffon in the mid-1700s studied fossils and said the Earth must be older than previously 
assumed; Lamarck in the early 1800s proposed that life changes over time. 
 
Define acquired vs heritab...
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IB biology chapter 6 with verified solutions
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IB biology chapter 6 with verified 
 
solutions 
 
explain why digestion of large food molecules is essential 1. food needs to be broken down 
and reassembled 
 
2. large food molecules need to be broken down into smaller ones 
 
explain the need for enzymes in digestion 1. enzymes break down large food molecules into 
smaller ones 
 
2. they speed up the process of digestion by lowering the activation energy for the reaction 
 
3. work at body temperature 
 
Antigen proteins found embedded in p...
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IB Biology Unit 1 (Cell Biology - SL) Latest Update Graded A+
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IB Biology Unit 1 (Cell Biology - SL) 
 
Latest Update Graded A+ 
 
Cell Theory all living things are made up of cells, all cells come from previous cells, the cell 
is the basic fundamental unit of life 
 
Functions of life that the cell must carry out -Nutrition: obtaining food, to provide energy 
and the materials needed for growth 
- Metabolism: chemical reactions inside the cell, including cell respiration to release energy 
-Growth: an irreversible increase in size 
-Response: the ability ...
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IB Biology - Unit 1 - Cell Biology Latest Version 100% Pass
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IB Biology - Unit 1 - Cell Biology Latest 
 
Version 100% Pass 
 
Cell Theory The theory that cells form the fundamental structural and functional units of all 
living organisms 
 
Unicellular A single celled organism 
 
Multicellular Made up of more than one cell. 
 
Prokaryotic A small single cell lacking a nucleus or any other membrane-bound organelles. 
Bacterial cells are an example 
 
Eukaryotic A cell characterized by the presence of a nucleus and other membrane-bound 
organelles. Eukaryo...
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IB Biology SL Latest Update Graded A+
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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 for...
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IB BIOLOGY GENETICS LATEST 2024 GRADED A+
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IB BIOLOGY GENETICS LATEST 2024 
 
GRADED A+ 
 
Gene a heritable factor that controls a specific characteristic. 
 
Allele one specific form of a gene, differeing from other alleles by one or a few bases only 
and occupying the same locus as other alleles of the gene. 
 
Genome The whole of the genetic information of an organism 
 
gene mutation a change in the base sequence of a gene. 
 
Base substitution The smallest possible change is when one base in a gene is replaced by 
another. An exampl...
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IB Biology - Molecular Biology (Topic 2 SL) Rated A+
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IB Biology - Molecular Biology (Topic 2 
 
SL) Rated A+ 
 
Carbon Element of life able to form four particularly stable covalent bonds 
 
Organic compound A compound that contains carbon and is found in living things 
 
Carbohydrates Class of molecules with the general formula - CH2O 
 
Glycogen Form in which glucose is stored in humans and fungi. 
 
Starch Form in which glucose is stored in plants. 
 
Proteins Building blocks of cells, enzymes and structural molecules and carry out functions 
w...
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IB Biology 1.1 Latest Version with Complete Solutions
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IB Biology 1.1 Latest Version with 
 
Complete Solutions 
 
Cell Theory 1. All living things are composed of cells and cell products 
2. New cells are formed only by the division of pre-existing cells 
3. The cell contains inherited information that are used as instructions for growth, functioning, 
and development 
4. The cell is the functioning unit of life; all chemical reactions of life take place within cells 
 
7 functions of life: 1. Nutrition 
 
2. Metabolism 
3. Growth 
4. Response to S...
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IB Biology 9.2 Latest Update Graded A+
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IB Biology 9.2 Latest Update Graded A+ 
 
Translocation occurs from ___ to ___ Source to sink 
 
Phloem tissue - found in stems, roots and leaves 
 
- Composed of sieve tubes which are composed of specialized sieve tube cells 
 
- Sieve tube cells are separated by sieve plates (perforated walls) 
 
- Sieve tube cells are associated with companion cells 
 
Translocation Transport of organic solutes in a plant 
 
Sources areas of plant where sugars and amino acids are in surplus and are loaded int...