Draw the Core Label if youre able Annotate

Draw the Core Label if you’re able Annotate if you’re great http: //sciencevideos. wordpress. com Draw the Core 1

Draw the Core 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 diagram with labels. How could you use it in your revision? • Quick. Draw 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. Remember: It’s an exercise in clarity, not a colouring-in competition! This is a work in progress – but you might find it useful. It will be updated later. Assessment statements have been taken from the online IB Biology subject guide: http: //xmltwo. ibo. org/publications/migrated/production-app 2. 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 2

Drawing in IB Biology Homework and Exams • You can use pencil and a ruler. • You must not use coloured pencils. • Draw clearly! Not too light or messy. • Practice first on the scrap paper. As of 2011, exams will be scanned and look like this: 7. (a) Draw a labeled diagram showing the ultrastructure of a typical prokaryote. [4] This bit gets cut off 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. http: //sciencevideos. wordpress. com Draw the Core 3

A Terrible Drawing… http: //sciencevideos. wordpress. com Draw the Core 4

A Terrible Drawing… Too light Unlabeled Messy Tiny http: //sciencevideos. wordpress. com Draw the Core 5

A Rubbish Drawing… http: //sciencevideos. wordpress. com Draw the Core 6

A Rubbish Drawing… Criss-crossed label lines Wiggly label lines Where are these labels pointing? The arrow heads are unnecessary Unclear labels Messy shading Outside the scanning box http: //sciencevideos. wordpress. com Draw the Core 7

A Good Drawing… http: //sciencevideos. wordpress. com Draw the Core 8

A Good Drawing… • • • http: //sciencevideos. wordpress. com Good use of space • Lines touch the labeled Clear strong lines structure Label lines are straight • No unnecessary shading Labels clearly written or colouring Scale bar if appropriate Draw the Core 9

2. 2. 1 Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. All assessment statements taken from the online IB Biology subject guide: http: //xmltwo. ibo. org/publications/migrated/production-app 2. ibo. org/publication/7/part/2/chapter/2. html http: //sciencevideos. wordpress. com Draw the Core 10

2. 2. 1 Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. 1µm http: //sciencevideos. wordpress. com Draw the Core 11

2. 2. 1 Draw and label a diagram of the ultrastructure of Escherichia coli (E. coli) as an example of a prokaryote. cell wall plasma membrane flagellum pili nucleoid 70 S ribosomes cytoplasm Plasmids/ Loops of DNA 1µm http: //sciencevideos. wordpress. com Draw the Core 12

2. 2. 1 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. cell wall Protects cell, holds structure plasma membrane Controls what goes in and out of the cell Flagellum Movement Pili Attachment, Exchange of DNA 70 S ribosomes Protein synthesis 1µm http: //sciencevideos. wordpress. com Cytoplasm Nucleoid Contains: Plasmids/ Loops of DNA Genetic information Contains solutes, enzymes for metabolic reactions Draw the Core 13

2. 3. 1 Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. http: //sciencevideos. wordpress. com Draw the Core 14

2. 3. 1 Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. 10µm http: //sciencevideos. wordpress. com Draw the Core 15

2. 3. 1 Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. Plasma membrane Mitochondria Free 80 S ribosomes Lysosomes Cytoplasm Nucleus Golgi apparatus Rough Endoplasmic Reticulum 10µm http: //sciencevideos. wordpress. com Draw the Core 16

2. 3. 1 Draw and label a diagram of the ultrastructure of a liver cell as an example of an animal cell. 2. 3. 2 Annotate the diagram from 2. 3. 1 with the functions of each named structure. Plasma membrane Controls what enters and leaves the cell Mitochondria Cell respiration Free 80 S ribosomes Protein synthesis for use within the cell Lysosomes Contain enzymes for intracellular digestion Cytoplasm Solutes and enzymes for metabolic pathways Golgi apparatus Modifies and packages proteins for export from the cell. Produces vesicles for exocytosis Nucleus Rough Endoplasmic Reticulum Contains DNA in the form of chromosomes Attached 80 S ribosomes produce proteins for export from the cell 10µm http: //sciencevideos. wordpress. com Draw the Core 17

2. 5. 4 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. http: //sciencevideos. wordpress. com Draw the Core 18

2. 5. 4 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. http: //sciencevideos. wordpress. com Draw the Core 19

2. 4. 1 Draw and label a diagram to show the structure of membranes. http: //sciencevideos. wordpress. com Draw the Core 20

3. 1. 4 Draw and label a diagram showing the structure of water molecules to show their polarity and hydrogen bond formation. http: //sciencevideos. wordpress. com Draw the Core 21

3. 1. 4 Draw and label a diagram showing the structure of water molecules to show their polarity and hydrogen bond formation. Covalent bond: shared electrons Large oxygen atom pulls shared electrons closer to it, becoming slightly negative. Therefore hydrogen atoms become slightly positive. http: //sciencevideos. wordpress. com Draw the Core 22

3. 1. 4 Draw and label a diagram showing the structure of water molecules to show their polarity and hydrogen bond formation. Large oxygen atom pulls shared electrons closer to it, becoming slightly negative. Covalent bond: shared electrons Therefore hydrogen atoms become slightly positive. Hydrogen bonds form between the slightly positive hydrogens of one water molecule and the slightly negative oxygens of the next. http: //sciencevideos. wordpress. com Draw the Core 23

3. 2. 2 Identify amino acids, glucose, ribose and fatty acids from diagrams showing their structure. http: //sciencevideos. wordpress. com Draw the Core 24

3. 3. 1 Outline DNA nucleotide structure in terms of sugar (deoxyribose), base and phosphate. Phosphate ion Deoxyribose sugar Nitrogenous base: • Adenine • Thymine • Guanine • Cytosine Diagrams taken from the online IB Biology subject guide: http: //xmltwo. ibo. org/publications/migrated/production-app 2. ibo. org/publication/7/part/2/chapter/4/page/3. html http: //sciencevideos. wordpress. com Draw the Core 25

3. 3. 3 Outline how DNA nucleotides are linked together by covalent bonds into a single strand. Phosphate ion 5 4 1 3 2 Covalent bond between C 3 of one molecule and the phosphate of the next Deoxyribose sugar Nitrogenous base: • Adenine • Thymine • Guanine • Cytosine Covalent bond between C 3 of one molecule and the phosphate of the next. New nucleotides are added to the C 3 each time. Diagrams taken from the online IB Biology subject guide: http: //xmltwo. ibo. org/publications/migrated/production-app 2. ibo. org/publication/7/part/2/chapter/4/page/3. html http: //sciencevideos. wordpress. com Draw the Core 26

3. 3. 5 Draw and label a simple diagram of the molecular structure of DNA. Phosphate ion 5 4 adenine 1 3 thymine 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-app 2. ibo. org/publication/7/part/2/chapter/4/page/3. html http: //sciencevideos. wordpress. com Draw the Core 27

3. 8. 4 Outline the differences in absorption of red, blue and green light by chlorophyll. http: //sciencevideos. wordpress. com Draw the Core 28

3. 8. 4 Outline the differences in absorption of red, blue and green light by chlorophyll. http: //sciencevideos. wordpress. com Draw the Core 29

3. 8. 8 Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. The shape of the graphs is required. http: //sciencevideos. wordpress. com Draw the Core 30

Outline the effects of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis. The shape of the graphs is required. 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. http: //sciencevideos. wordpress. com Rate of reaction 3. 8. 8 Light intensity At low light intensity: CO 2 concentration At low [CO 2] : At high light intensity: At high [CO 2] : Increase in light intensity increases rate of reaction. Increase in light intensity has no effect on rate of reaction – plateau. Increase in [CO 2] increases rate of reaction. Increase in [CO 2] has no effect on rate of reaction – plateau as all active sites are filled. Draw the Core 31

4. 2. 3 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. http: //sciencevideos. wordpress. com Draw the Core 32

4. 2. 3 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. http: //sciencevideos. wordpress. com Draw the Core 33

5. 1. 4 Describe what is meant by a food chain, giving three examples, each with at least three linkages (four organisms). http: //sciencevideos. wordpress. com Draw the Core 34

5. 1. 4 Describe what is meant by a food chain, giving three examples, each with at least three linkages (four organisms). Food chains show the flow of energy through the trophic levels of a feeding relationship. PRODUCER PRIMARY CONSUMER SECONDARY CONSUMER TERTIARY CONSUMER “eaten by” Yellow iris moth caterpillar great tit sparrowhawk Phytoplankton krill cod seal diatoms freshwater shrimp bream osprey http: //sciencevideos. wordpress. com Draw the Core 35

5. 1. 8 Construct a food web containing up to 10 organisms, using appropriate information. http: //sciencevideos. wordpress. com Draw the Core 36

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 http: //sciencevideos. wordpress. com Draw the Core 37

5. 2. 1 Draw and label a diagram of the carbon cycle to show the processes involved. http: //sciencevideos. wordpress. com Draw the Core 38

5. 2. 1 Draw and label a diagram of the carbon cycle to show the processes involved. http: //sciencevideos. wordpress. com Draw the Core 39

6. 1. 4 Draw and label a diagram of the digestive system. http: //sciencevideos. wordpress. com Draw the Core 40

6. 1. 4 Draw and label a diagram of the digestive system. mouth esophagus liver stomach gall bladder pancreas small intestine large intestine rectum anus http: //sciencevideos. wordpress. com Draw the Core 41

6. 1. 7 Explain how the structure of the villus is related to its role in absorption and transport of the products of digestion. http: //sciencevideos. wordpress. com Draw the Core 42

6. 1. 7 Explain how the structure of the villus is related to its role in absorption and transport of the products of digestion. http: //sciencevideos. wordpress. com Draw the Core 43

6. 1. 7 Explain how the structure of the villus is related to its role in absorption and transport of the products of digestion. Single-cell epithelium Short diffusion path for digested molecules Lacteals Absorption and transport of lipid molecules Rich network of capillaries Transport of molecules. Maintains high concentration gradient between lumen of gut and blood. http: //sciencevideos. wordpress. com Mitochondria Active transport of digested food molecules Draw the Core Microvilli Further increase in SA: Vol ratio 44

6. 2. 1 Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves and the route of blood through the heart. http: //sciencevideos. wordpress. com Draw the Core 45

6. 2. 1 Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves and the route of blood through the heart. http: //sciencevideos. wordpress. com Draw the Core 46

6. 2. 5 Explain the relationship between the structure and function of arteries, capillaries and veins. http: //sciencevideos. wordpress. com Draw the Core 47

6. 4. 4 Draw and label a diagram of the ventilation system, including trachea, lungs, bronchi, bronchioles and alveoli. http: //sciencevideos. wordpress. com Draw the Core 48

6. 4. 4 Draw and label a diagram of the ventilation system, including trachea, lungs, bronchi, bronchioles and alveoli. http: //sciencevideos. wordpress. com Draw the Core 49

6. 5. 2 Draw and label a diagram of the structure of a motor neuron. http: //sciencevideos. wordpress. com Draw the Core 50

6. 5. 2 Draw and label a diagram of the structure of a motor neuron. http: //sciencevideos. wordpress. com Draw the Core 51

6. 5. 2 Draw and label a diagram of the structure of a motor neuron. Dendritic end terminal end cell body nucleus myelin sheath axon hillock dendrites http: //sciencevideos. wordpress. com Nodes of Ranvier motor end plates muscle tissue Draw the Core 52

6. 6. 1 Draw and label diagrams of the adult male reproductive system. http: //sciencevideos. wordpress. com Draw the Core 53

6. 6. 1 Draw and label diagrams of the adult male reproductive system. http: //sciencevideos. wordpress. com Draw the Core 54

6. 6. 1 Draw and label diagrams of the adult male reproductive system. sperm duct bladder semen gland prostate gland urethra penis epididymis testis http: //sciencevideos. wordpress. com Draw the Core 55

6. 6. 1 Draw and label diagrams of the adult female reproductive system. http: //sciencevideos. wordpress. com Draw the Core 56

6. 6. 1 Draw and label diagrams of the adult female reproductive system. http: //sciencevideos. wordpress. com Draw the Core 57

6. 6. 1 Draw and label diagrams of the adult female reproductive system. Oviduct/ Fallopian tube uterus ovary endometrium muscle wall bladder urethra http: //sciencevideos. wordpress. com cervix vagina Draw the Core 58