IB Biology - Samenvattingen en Aantekeningen

Op zoek naar een samenvatting over IB Biology? Op deze pagina vind je 1922 samenvattingen over IB Biology.

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Samenvatting

IB HL BIOLOGY NOTE ON ECOLOGICAL NICHE
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9

mei 2026

2025/2026
These notes define fundamental versus realised niches and explain the concepts of specialist and generalist species, using examples such as beavers as keystone species. The material covers modes of respiration (obligate aerobe, obligate anaerobe, facultative anaerobe) with a thioglycolate tube experiment, and adaptations of herbivores, predators, and prey (physical, chemical, behavioural). Students will also learn about the ecological range of tolerance, marginalised and preferred niches, the us...
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Samenvatting

IB HL BIOLOGY NOTES ON CHEMICAL SIGNALLING
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37

mei 2026

2025/2026
These notes systematically explain cell communication, from ligand release and receptor binding to intracellular responses, with specific examples such as quorum sensing in Vibrio fischeri and the lux operon. The material also provides an in-depth look at neural signalling, including neuron structure, myelination, action potentials, and the roles of sensory, relay, and motor neurons. Furthermore, it covers the integration of nervous and endocrine systems in the fight-or-flight response, the func...
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Samenvatting

IB HL BIOLOGY NOTES ON MUTATIONS
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23

mei 2026

2025/2026
These notes offer a thorough exploration of mutagenesis, including the causes and randomness of mutations, the role of mutagens such as radiation and chemicals, and the specific molecular events like deamination that lead to genetic change. The material also covers key genetic disorders (cystic fibrosis, Huntington disease, sickle cell anaemia) and explains concepts such as single nucleotide polymorphisms, gene knockout using CRISPR, and the inheritance patterns of dominant and recessive alleles...
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Samenvatting

IB HL BIOLOGY NOTES ON ENZYME AND METABOLISM
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11

mei 2026

2025/2026
This set of notes delivers a rigorous foundation in enzymology, covering anabolic and catabolic reactions, enzyme-substrate specificity, denaturation factors (pH, temperature), and the thermodynamics of activation energy reduction. It explains how to calculate reaction rates, describes metabolic pathways and metabolic rate, and distinguishes competitive, non-competitive, and end-product inhibition with drug examples. The inclusion of DNA replication enzymes (helicase, polymerase, gyrase) and PCR...
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Samenvatting

IB HL BIOLOGY NOTES ON HOMEOSTASIS
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21

mei 2026

2025/2026
This document provides a comprehensive overview of homeostasis, focusing on thermoregulation in birds and mammals, the role of the hypothalamus and thyroid hormones, and the physiological responses to cold and warm environments. It also details kidney function and osmoregulation, including nephron structure, ultrafiltration, selective reabsorption, the loop of Henle, and the action of ADH on the collecting duct. Additionally, the notes cover blood flow regulation, metabolic waste removal, and th...
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Samenvatting

IB BIOLOGY HL NOTES ON THE ORIGINS OF CELLS
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12

mei 2026

2025/2026
This document provides a foundational guide to microscopy techniques, including slide preparation, staining, and the use of eyepiece graticules for measurement, alongside a detailed comparison of light and electron microscopes (TEM and SEM) with their respective advantages and limitations. It thoroughly explains cell theory, notable exceptions (striated muscle fibres, aseptate fungal hyphae, giant algae), and the Miller-Urey experiment, evaluating its strengths and weaknesses in the context of t...
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Samenvatting

IB HL BIOLOGY notes on ultra structure
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12

mei 2026

2025/2026
this note will provide you the information on the structure of prokaryotes and eukaryotes
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College aantekeningen

IB HL BIOLOGY notes on reproduction
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18

mei 2026

2025/2026
HL notes on reproduction speaking on sexual and asexual reproduction in plants and humans aswell as information on polyspermy
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Tentamen (uitwerkingen)

IB BIOLOGY FINAL PAPER 2026 FULL QUESTIONS AND SOLUTIONS VERIFIED A+
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18

mei 2026

2025/2026

A+
IB BIOLOGY FINAL PAPER 2026 FULL QUESTIONS AND SOLUTIONS VERIFIED A+
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