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1. Draw the CoreLabel if you’re ableAnnotate if you’re great

   Stephen Taylor Draw the Core http://sciencevideos.wordpress.com
2. This presentation is for practice with assessment statements where you need to draw, label, annotate or where a diagram would be very helpful to describe, outline or identify. One slide has the assessment statement. The next has the diagram and the last has the diagramwith labels. How could you use it in your revision? QuickDraw flashcards – can you draw the item in the statement? Labeling practice – can you add the correct labels? Explain, outline, annotate, describe practice. Take the diagram or image and use it to help in your treatment of objective 2 and 3 assessment statements. This is a work in progress – but you might find it useful. It will be updated later. Remember: It’s an exercise in clarity, not a colouring-in competition!

   Draw the Core

   Assessment statements have been taken from the online IB Biology subject guide: http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/2/chapter/2.html The diagrams in the presentation are all creative commons (unless otherwise noted), which means you can share, edit and print them, as long as you cite the source as http://sciencevideos.wordpress.com. Draw the Core http://sciencevideos.wordpress.com
3. You can use pencil and a ruler. You must not use coloured pencils. As of 2011, exams will be scanned and look like this: Draw clearly! Not too light or messy. Practice first on the scrap paper. 7. (a) Draw a labeled diagram showing the ultrastructure of a typical prokaryote. [4]

   Drawing in IB Biology Exams

   The scanning machine only looks inside the boxes, so stay inside! Use extra paper if needed, but include a note to that effect in this box. Make sure the extra paper is labeled clearly. This bit gets cut off Draw the Core http://sciencevideos.wordpress.com

4. A Terrible Drawing…

   Draw the Core http://sciencevideos.wordpress.com
5. Too light Unlabeled

   A Terrible Drawing…

   Messy Tiny Draw the Core http://sciencevideos.wordpress.com

6. A Rubbish Drawing…

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7. Criss-crossed label lines Wiggly label lines

   A Rubbish Drawing…

   Where are these labels pointing? The arrow heads are unnecessary Unclear labels Messy shading Outside the scanning box Draw the Core http://sciencevideos.wordpress.com

8. A Good Drawing…

   Draw the Core http://sciencevideos.wordpress.com

9. A Good Drawing…

   Good use of space Clear strong lines Label lines are straight Labels clearly written Scale bar if appropriate Lines touch the labeled structure No unnecessary shading or colouring Draw the Core http://sciencevideos.wordpress.com
10. Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. 2.2.1 All assessment statements taken from the online IB Biology subject guide: http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/2/chapter/2.html Draw the Core http://sciencevideos.wordpress.com
11. Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. 2.2.1 1µm Draw the Core http://sciencevideos.wordpress.com
12. Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. 2.2.1 cell wall plasma membrane flagellum 1µm pili nucleoid 70S ribosomes Plasmids/ Loops of DNA cytoplasm Draw the Core http://sciencevideos.wordpress.com
13. Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. 2.2.2 Annotate the diagram from 2.3.1 with the functions of each named structure. 2.2.1 cell wall Protects cell, holds structure plasma membrane Controls what goes in and out of the cell Flagellum Movement 1µm Pili Attachment, Exchange of DNA Nucleoid Contains: 70S ribosomes Protein synthesis Plasmids/ Loops of DNA Genetic information Cytoplasm Contains solutes, enzymes for metabolic reactions Draw the Core http://sciencevideos.wordpress.com
14. Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. 2.3.1 Draw the Core http://sciencevideos.wordpress.com
15. Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. 2.3.1 10µm Draw the Core http://sciencevideos.wordpress.com
16. Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. 2.3.1 Plasma membrane Mitochondria Free 80S ribosomes Lysosomes Cytoplasm 10µm Nucleus Golgi apparatus Rough Endoplasmic Reticulum Draw the Core http://sciencevideos.wordpress.com
17. Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. 2.3.2Annotate the diagram from 2.3.1 with the functions of each named structure. 2.3.1 Plasma membrane Controls what enters and leaves the cell Mitochondria Cell respiration Free 80S ribosomes Protein synthesis for use within the cell Lysosomes Contain enzymes for intracellular digestion Cytoplasm Solutes and enzymes for metabolic pathways 10µm Nucleus Contains DNA in the form of chromosomes Golgi apparatus Modifies and packages proteins for export from the cell. Produces vesicles for exocytosis Rough Endoplasmic Reticulum Attached 80S ribosomes produce proteins for export from the cell Draw the Core http://sciencevideos.wordpress.com
18. Describe the events that occur in the four phases of mitosis (prophase, metaphase, anaphase and telophase). Try drawing this with a cell of n=2. 2.5.4 Draw the Core http://sciencevideos.wordpress.com
19. Describe the events that occur in the four phases of mitosis (prophase, metaphase, anaphase and telophase). Try drawing this with a cell of n=2. 2.5.4 Draw the Core http://sciencevideos.wordpress.com
20. 2.4.1 Draw and label a diagram to show the structure of membranes. Draw the Core http://sciencevideos.wordpress.com
21. Draw and label a diagram showing the structure of water molecules to show their polarity and hydrogen bond formation. 3.1.4 Draw the Core http://sciencevideos.wordpress.com
22. Draw and label a diagram showing the structure of water molecules to show their polarity and hydrogen bond formation. 3.1.4 Large oxygen atom pulls shared electrons closer to it, becoming slightly negative. Therefore hydrogen atoms become slightly positive. Covalent bond: shared electrons Draw the Core http://sciencevideos.wordpress.com
23. Draw and label a diagram showing the structure of water molecules to show their polarity and hydrogen bond formation. 3.1.4 Large oxygen atom pulls shared electrons closer to it, becoming slightly negative. Therefore hydrogen atoms become slightly positive. Covalent bond: shared electrons Hydrogen bonds form between the slightly positive hydrogens of one water molecule and the slightly negative oxygens of the next. Draw the Core http://sciencevideos.wordpress.com
24. Identify amino acids, glucose, ribose and fatty acids from diagrams showing their structure. 3.2.2 Draw the Core http://sciencevideos.wordpress.com
25. Outline DNA nucleotide structure in terms of sugar (deoxyribose), base and phosphate. 3.3.1 Phosphate ion Nitrogenous base: Adenine Thymine Guanine Cytosine Deoxyribose sugar Diagrams taken from the online IB Biology subject guide: http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/2/chapter/4/page/3.html Draw the Core http://sciencevideos.wordpress.com
26. Outline how DNA nucleotides are linked together by covalent bonds into a single strand. 3.3.3 Phosphate ion 5 4 1 3 2 Covalent bond between C3 of one molecule and the phosphate of the next Nitrogenous base: Adenine Thymine Guanine Cytosine Deoxyribose sugar Covalent bond between C3 of one molecule and the phosphate of the next. New nucleotides are added to the C3 each time. Diagrams taken from the online IB Biology subject guide: http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/2/chapter/4/page/3.html Draw the Core http://sciencevideos.wordpress.com
27. 3.3.5 Draw and label a simple diagram of the molecular structure of DNA. Phosphate ion 5 adenine thymine 4 1 3 2 Hydrogen bonds between complementary base pairs (A&T; G&C) Covalent bond guanine cytosine Deoxyribose sugar Antiparallel strands Diagrams taken from the online IB Biology subject guide: http://xmltwo.ibo.org/publications/migrated/production-app2.ibo.org/publication/7/part/2/chapter/4/page/3.html Draw the Core http://sciencevideos.wordpress.com
28. 3.8.4 Outline the differences in absorption of red, blue and green light by chlorophyll. Draw the Core http://sciencevideos.wordpress.com
29. 3.8.4 Outline the differences in absorption of red, blue and green light by chlorophyll. Draw the Core http://sciencevideos.wordpress.com
30. Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. The shape of the graphs is required. 3.8.8 Draw the Core http://sciencevideos.wordpress.com
31. Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. The shape of the graphs is required. 3.8.8 Rate of reaction Rate of reaction Rate of reaction Temperature At low temperature: Increase in temperature increases rate of reaction. At high temperature: Increase in temp. leads to sharp decline in rate as enzymes are denatured. Light intensity At low light intensity: Increase in light intensity increases rate of reaction. At high light intensity: Increase in light intensity has no effect on rate of reaction – plateau. CO2 concentration At low [CO2] : Increase in [CO2] increases rate of reaction. At high [CO2] : Increase in [CO2] has no effect on rate of reaction – plateau as all active sites are filled. Draw the Core http://sciencevideos.wordpress.com
32. Outline the process of meiosis, including pairing of homologous chromosomes and crossing over, followed by two divisions, which results in four haploid cells. Try drawing this with a cell of n=2. 4.2.3 Draw the Core http://sciencevideos.wordpress.com
33. Outline the process of meiosis, including pairing of homologous chromosomes and crossing over, followed by two divisions, which results in four haploid cells. Try drawing this with a cell of n=2. 4.2.3 Draw the Core http://sciencevideos.wordpress.com
34. Describe what is meant by a food chain, giving three examples, each with at least three linkages (four organisms). 5.1.4 Draw the Core http://sciencevideos.wordpress.com
35. Describe what is meant by a food chain, giving three examples, each with at least three linkages (four organisms). 5.1.4 Food chains show the flow of energy through the trophic levels of a feeding relationship. SECONDARYCONSUMER PRODUCER TERTIARYCONSUMER PRIMARY CONSUMER “eaten by” Yellow iris moth caterpillar great tit sparrowhawk Phytoplankton krill cod seal diatoms freshwater shrimp bream osprey Draw the Core http://sciencevideos.wordpress.com
36. 5.1.8 Construct a food web containing up to 10 organisms, using appropriate information. Draw the Core http://sciencevideos.wordpress.com
37. 5.1.8 Construct a food web containing up to 10 organisms, using appropriate information. Arrows show flow of energy. Some species can be classified in two or more trophic levels, e.g. marine omnivores Draw the Core http://sciencevideos.wordpress.com
38. 5.2.1 Draw and label a diagram of the carbon cycle to show the processes involved. Draw the Core http://sciencevideos.wordpress.com
39. 5.2.1 Draw and label a diagram of the carbon cycle to show the processes involved. Draw the Core http://sciencevideos.wordpress.com
40. Outline how population size is affected by natality, immigration, mortality and emigration. 5.3.1 Draw the Core http://sciencevideos.wordpress.com
41. Outline how population size is affected by natality, immigration, mortality and emigration. 5.3.1 Draw the Core http://sciencevideos.wordpress.com
42. 5.3.3 Draw and label a graph showing a sigmoid (S-shaped) population growth curve. Draw the Core http://sciencevideos.wordpress.com
43. 5.3.3 Draw and label a graph showing a sigmoid (S-shaped) population growth curve. K Plateau phase Transition phase population Exponential phase time Draw the Core http://sciencevideos.wordpress.com
44. Draw and label a graph showing a sigmoid (S-shaped) population growth curve. 5.3.4 Explain the exponential, transition and plateau phases. 5.3.3 K Plateau phase I + N = E + M High competition as space and resources are limited. High effect of natural selection. Transition phase I + N > E + M (but less so) Increased competition as space and resources are used up. Rate of population growth slows. population Exponential phase I + N >E + M Abundant space and resources. Very little competition so reproduction is high. time Draw the Core http://sciencevideos.wordpress.com
45. 6.1.4 Draw and label a diagram of the digestive system. Draw the Core http://sciencevideos.wordpress.com
46. 6.1.4 Draw and label a diagram of the digestive system. mouth esophagus stomach liver gall bladder pancreas small intestine large intestine rectum anus Draw the Core http://sciencevideos.wordpress.com
47. Explain how the structure of the villus is related to its role in absorption and transport of the products of digestion. 6.1.7 Draw the Core http://sciencevideos.wordpress.com
48. Explain how the structure of the villus is related to its role in absorption and transport of the products of digestion. 6.1.7 Draw the Core http://sciencevideos.wordpress.com
49. Explain how the structure of the villus is related to its role in absorption and transport of the products of digestion. 6.1.7 Single-cell epithelium Short diffusion path for digested molecules Lacteals Absorption and transport of lipid molecules Mitochondria Active transport of digested food molecules Microvilli Further increase in SA:Vol ratio Rich network of capillaries Transport of molecules. Maintains high concentration gradient between lumen of gut and blood. Draw the Core http://sciencevideos.wordpress.com
50. Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves and the route of blood through the heart. 6.2.1 Draw the Core http://sciencevideos.wordpress.com
51. Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves and the route of blood through the heart. 6.2.1 Draw the Core http://sciencevideos.wordpress.com
52. Explain the relationship between the structure and function of arteries, capillaries and veins. 6.2.5 Draw the Core http://sciencevideos.wordpress.com
53. Explain the relationship between the structure and function of arteries, capillaries and veins. 6.2.5 Draw the Core http://sciencevideos.wordpress.com
54. Outline how phagocytic leucocytes ingest pathogens in the blood and in body tissues. 6.3.4 Draw the Core http://sciencevideos.wordpress.com
55. Outline how phagocytic leucocytes ingest pathogens in the blood and in body tissues. 6.3.4 Draw the Core http://sciencevideos.wordpress.com
56. 6.4.3 Describe the features of alveoli that adapt them to gas exchange. Draw the Core http://sciencevideos.wordpress.com
57. 6.4.3 Describe the features of alveoli that adapt them to gas exchange. Draw the Core http://sciencevideos.wordpress.com
58. Draw and label a diagram of the ventilation system, including trachea, lungs, bronchi, bronchioles and alveoli. 6.4.4 Draw the Core http://sciencevideos.wordpress.com
59. Draw and label a diagram of the ventilation system, including trachea, lungs, bronchi, bronchioles and alveoli. 6.4.4 Draw the Core http://sciencevideos.wordpress.com
60. 6.5.2 Draw and label a diagram of the structure of a motor neuron. Draw the Core http://sciencevideos.wordpress.com
61. 6.5.2 Draw and label a diagram of the structure of a motor neuron. Draw the Core http://sciencevideos.wordpress.com
62. 6.5.2 Draw and label a diagram of the structure of a motor neuron. Dendritic end terminal end cell body myelin sheath nucleus axon Nodes of Ranvier axon hillock motor end plates dendrites muscle tissue Draw the Core http://sciencevideos.wordpress.com
63. 6.6.1 Draw and label diagrams of the adult male reproductive system. Draw the Core http://sciencevideos.wordpress.com
64. 6.6.1 Draw and label diagrams of the adult male reproductive system. Draw the Core http://sciencevideos.wordpress.com
65. 6.6.1 Draw and label diagrams of the adult male reproductive system. sperm duct bladder semen gland prostate gland urethra penis epididymis testis Draw the Core http://sciencevideos.wordpress.com
66. 6.6.1 Draw and label diagrams of the adult female reproductive system. Draw the Core http://sciencevideos.wordpress.com
67. 6.6.1 Draw and label diagrams of the adult female reproductive system. Draw the Core http://sciencevideos.wordpress.com
68. 6.6.1 Draw and label diagrams of the adult female reproductive system. Oviduct/ Fallopian tube ovary uterus endometrium muscle wall cervix bladder vagina urethra Draw the Core http://sciencevideos.wordpress.com
69. Annotate a graph showing hormone levels in the menstrual cycle, illustrating the relationship between changes in hormone levels and ovulation, menstruation and thickening of the endometrium. 6.6.3 Draw the Core http://sciencevideos.wordpress.com
70. Annotate a graph showing hormone levels in the menstrual cycle, illustrating the relationship between changes in hormone levels and ovulation, menstruation and thickening of the endometrium. 6.6.3 Day 0 5 14 28 Draw the Core http://sciencevideos.wordpress.com
71. Annotate a graph showing hormone levels in the menstrual cycle, illustrating the relationship between changes in hormone levels and ovulation, menstruation and thickening of the endometrium. 6.6.3 Day 0-14 FSH and LH stimulate development of the oocyte (egg) in the ovary. Day 14 peak of LH causes ovulation. Day 15-28 FSH and LH inhibited by estrogen and progesterone, preventing further release of eggs. Luteinising hormone (LH) Follicle stimulating hormone (FSH) Day 0-14 estrogen increases, building the endometrium. Day 14-18 estrogen drops, progesterone peaks, maintaining endometrium and inhibiting FSH and LH. Day 28 Progesterone drops if the egg is not fertilised and does not implant onto endometrium. progesterone estrogen Day 0-5 Endometrium is broken down (menstruation) as progesterone falls. Day 5-14 Estrogen rises, endometrium builds. Day 14-28 Endometrium maintained by high progesterone levels to prepare for fertilisation. endometrium Day 0 5 14 28 Draw the Core http://sciencevideos.wordpress.com
72. For more IB Biology resources: http://sciencevideos.wordpress.com This presentation is free to view. Please make a donation to one of my chosen charities at Gifts4Good and I will send you the editable pptx file. Click here for more information about Biology4Good charity donations. Draw the Core This is a Creative Commons presentation. It may be linked and embedded but not sold or re-hosted.