IB Biology Syllabus - IB Biology Syllabus All Biology students should be able to perform the basic arithmetic functions addition subtraction

IB Biology Syllabus - IB Biology Syllabus All Biology...

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IB Biology Syllabus All Biology students should be able to: perform the basic arithmetic functions: addition, subtraction, multiplication and division recognize basic geometric shapes carry out simple calculations within a biological context involving decimals, fractions, percentages, ratios, approximations, reciprocals and scaling use standard notation (for example, 3.6 × 10 6 ) use direct and inverse proportion represent and interpret frequency data in the form of bar charts, column graphs and histograms, and interpret pie charts and nomograms determine the mode and median of a set of data plot and interpret graphs (with suitable scales and axes) involving two variables that show linear or non-linear relationships plot and interpret scattergraphs to identify a correlation between two variables, and appreciate that the existence of a correlation does not establish a causal relationship demonstrate sufficient knowledge of probability to understand how Mendelian ratios arise and to calculate such ratios using a Punnett grid make approximations of numerical expressions recognize and use the relationships between length, surface area and volume. Topic 1: Statistical analysis Assessment statement Obj 1.1. 1 State that error bars are a graphical representation of the variability of data. 1 1.1. 2 Calculate the mean and standard deviation of a set of values. 2 1.1. 3 State that the term standard deviation is used to summarize the spread of values around the mean, and that 68% of the values fall within one standard deviation of the mean. 1 1.1. 4 Explain how the standard deviation is useful for comparing the means and the spread of data between two or more samples. 3 1.1. 5 Deduce the significance of the difference between two sets of data using calculated values for t and the appropriate tables. 3 1.1. 6 Explain that the existence of a correlation does not establish that there is a causal relationship between two variables. 3 Topic 2: Cells
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2.1 Cell theory Assessment statement Obj 2.1.1 Outline the cell theory. 2 2.1.2 Discuss the evidence for the cell theory. 3 2.1.3 State that unicellular organisms carry out all the functions of life. 1 2.1.4 Compare the relative sizes of molecules, cell membrane thickness, viruses, bacteria, organelles and cells, using the appropriate SI unit. 3 2.1.5 Calculate the linear magnification of drawings and the actual size of specimens in images of known magnification. 2 2.1.6 Explain the importance of the surface area to volume ratio as a factor limiting cell size. 3 2.1.7 State that multicellular organisms show emergent properties. 1 2.1.8 Explain that cells in multicellular organisms differentiate to carry out specialized functions by expressing some of their genes but not others.
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