Ib biology h - Study guides, Class notes & Summaries

IB Biology HL Topic 7 Latest 2024 Graded A DNA structure antiparallel strands, 3'-5' linkages, and H bonding between purines and pyrimidines Nucleosomes consist of DNA wrapped around 3 histone proteins and are held together by another histone protein Nucleosomes help to supercoil chromosomes and help to regulate transcription Unique (single-copy) genes are translated and constitute a surprisingly small proportion of eukaryotic DNA Highly repetitive sequences constitute 5-4...

IB Biology HL Topic 8 Latest Version Graded A+ Oxidation involves the loss of electrons from an element; frequently involves gaining oxygen or losing hydrogen Reduction involves a gain of electrons; frequently involves losing oxygen or gaining hydrogen Glycolysis first stage of cell respiration; in the cytoplasm, one hexose sugar is converted into 2 3-carbon atom compounds (pyruvate) with a net gain of 2 ATP and 2 NADH + H Phosphorylation 2 phosphate groups are added to a molec...

AQA AS BIOLOGY 7401/2 Paper 2 Version: 1.0 Final *JUN* IB/M/Jun23/E9 7401/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Thursday 25 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the question...

IB Biology HL Option A.4 Questions and Answers Already Passed What is innate behaviour? Provide an example. inherited from parents and develops independently of environment as it is unaffected by animal's experiences e.g. palmer grasp reflex in babies How can innate behaviour change? What is the rate of change? - can change through evolution via natural selection - rate of change much slower than with learned behaviour Describe how invertebrate experiments can be conducted to observ...

What are the characteristics common to all forms of life? - correct answer reproduction, carbon, responds to surroundings, Growth and Development, cellular organization, and energy What are the levels of biological organization from simple to most complex? - correct answer Molecules, cell, tissue, organ, organism, population, community, ecosystem, biosphere What are the 4 most common types of biological molecules? - correct answer Proteins, nucleic acids, carbohydrates, and lipids Organ...

IB BIOLOGY HL - ALL EXTENDED RESPONSE ANSWERS 2024 UPDATED 100% RATED BY EXPERTS IB BIOLOGY HL - ALL EXTENDED RESPONSE ANSWERS 2024 UPDATED 100% RATED BY EXPERTS IB BIOLOGY HL - ALL EXTENDED RESPONSE ANSWERS 2024 UPDATED 100% RATED BY EXPERTS IB BIOLOGY HL - ALL EXTENDED RESPONSE ANSWERS 2024 UPDATED 100% RATED BY EXPERTS IB BIOLOGY HL - ALL EXTENDED RESPONSE ANSWERS 2024 UPDATED 100% RATED BY EXPERTS IB BIOLOGY HL - ALL EXTENDED RESPONSE ANSWERS 2024 UPDATED 100% RATED BY EXPERTS IB BIOLOGY HL ...

IB BIOLOGY HL REVISION 2024 QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS NEW GENERATION IB BIOLOGY HL REVISION 2024 QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS NEW GENERATION IB BIOLOGY HL REVISION 2024 QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS NEW GENERATION IB BIOLOGY HL REVISION 2024 QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS NEW GENERATION IB BIOLOGY HL REVISION 2024 QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS NEW GENERATION IB BIOLOGY HL REVISION 2024 QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS...

QUESTIONS AND ANSWERS

Outline the cell theory. - correct answer Living organisms are composed of cells. Cells are the smallest unit of life. Cells come from pre-existing cells. Discuss the evidence for the cell theory. - correct answer The nature of scientific theories could be introduced here: the accumulation of evidence that allows a hypothesis to become a theory; whether a theory should be abandoned when there is evidence that it does not offer a full explanation; and what evidence is needed for a theory...