Ib biology Samenvattingen, Aantekeningen en Examens

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 ...

How do you calculate the magnification of a drawing/image? - correct answer Magnification=Image size(with ruler) / Actual size(according to scale bar) How do you calculate the actual size of a magnified specimen? - correct answer Actual size=Image size(with ruler) / magnification By which process do potassium ions move through potassium channels in axons? - correct answer Facilitated diffusion -at rest, the Na-K+ pump expels Na+ ions out of cell, while K+ are put within -when the n...

IB Biology Ch2 Molecular Biology Latest Update 100% Correct Most common elements found in living organisms Carbon, Hydrogen, Oxygen, Nitrogen. Organic molecules Compounds that contain atleast two Carbon Inorganic molecules Compounds that do not contain Carbon Monomers Small subunits Polymers When many monomers are bonded together Monosaccharides Single sugars made up of just one subunit. Disaccharides Are sugars that have two subunits linked together by a condensation reacti...

AQA GCSE BIOLOGY 8461/1H Paper 1 Higher Tier Question Paper + Mark scheme [MERGED] June 2022 *JUNH01* IB/M/Jun22/E20 8461/1H For Examiner’s Use Question Mark 1 2 3 4 5 6 7 TOTAL Time allowed: 1 hour 45 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in th...

AQA AS BIOLOGY 7401/1 Paper 1 Version: 1.0 Final *JUN* IB/M/Jun23/E8 7401/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 TOTAL Monday 15 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 questions in t...

IB Biology Year 1 Review with Complete Solutions ecology the study of relationships between living organisms and between organisms and their environment ecosystem a system made up of organisms as well as the abiotic factors in the area population a group of organisms of the same species who live in the same area at the same time community a group of populations living and interacting with each other in an area species a group of organisms which can interbreed and produce fertile offsprin...

IB Biology HL Exam Review Latest Version Already Graded A Outline the cell theory. 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. 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 evid...

IB Biology Chapter 2 Latest 2024 Graded A+ Vitalism Idea that living organisms are fundamentally different from non living things Most frequently occurring elements Oxygen 65% Carbon 19% Hydrogen 10% Nitrogen 3% Other elements Calcium 1.5% Phosphorus 1% Iron 0.7% Sulfur 0.25% Sodium 0.15% Molecular biology Science that aims to explain living processes in terms of chemical substances Synthesis of urea Discovered in human urine in the 18th century Organic compound synt...

IB Biology Topic 2: Molecular Biology Latest Update Graded A+ How many bonds can carbon make carbon can make four covalent bonds Four most common compounds - carbon -hydrogen -nitrogen -oxygen what is life based on carbon compounds metabolism metabolism- chemical processes in the body, synthesis & breakdown of substances in living organisms. anabolism- the synthesis of complex molecules (simple to complex) (condensation reaction) catabolism- the breakdown of complex molecu...