Summary full notes to unit 1 topic 6 a level biology

WJEC & Eduqas Notes
Cell Division
Mitosis & Meiosis




WJEC Unit 1
Eduqas Component 2 (A-Level only)




STUDY CHECKLIST AND LEARNING OBJECTIVES

,Instructions
Regular revision throughout the year is essential. It’s vital you keep a track of what you
understand and what you don’t understand. This booklet is designed to help you do this.
Use the following key to note how well you understand the work after your revision. Put the
letter R, A or G in the table. If you place an R or an A then you should make a note of what
you are struggling with and the end of this book under the relevant section and seek help
with this.

Key
R = Red. I am not confident about my knowledge and understanding
A = Amber. I am fairly confident about my knowledge and understanding
G = green. I am very confident about my knowledge and understanding

The following points are the learning objectives for this topic



Cell Division
Mitosis
1. Can you describe the stages of the cell cycle.

2. Can you recognise the cell cycle as shown as a pie graph and an X-Y (line) graph.

3. Can you state the stages of mitosis in the correct order.

4. Can you describe what occurs during the stages of the cell cycle.

5. Can you recognise a cell in each of the stages of the cell cycle from a drawing and microscope images.

6. Do you know the significance of mitosis.

7. Can you state where mitosis occurs in both plants and animals.

8. Can you calculate the mitotic index.

9. Can you apply your understanding of mitosis to unfamiliar scenarios?




Meiosis
10. Do you know the significance of meiosis?

11. Do you know how genetic variation occurs during meiosis?

, 12. Can you compare and contrast mitosis and meiosis.

13. Do you know the meaning of haploid and diploid?

14. Can you recognise a cell in each of the stages of meiosis from drawings and microscope images?

15. Can you describe what evens are occurring during prophase I, metaphase I, anaphase I telophase
I, prophase II, metaphase II, anaphase II, telophase II. Also, cytokinesis.

16. Do you know when a cell becomes haploid and when the DNA content halves during meiosis?

17. Do you know the difference between a replicated and a non-replicated chromosome?

18. Can you state where meiosis occurs in both plants and animals?

19. Can you apply your understanding of meiosis to unfamiliar scenarios?




Assessment Objective Description
AO1 Demonstrate knowledge and understanding of scientific ideas, processes, te

AO2 Apply knowledge and understanding of scientific ideas, processes, techniqu
• In a theoretical context
• In a practical context
• When handling qualitative data
• When handling quantitative data

AO3 Analyse, interpret and evaluate scientific information, ideas and evidence, i
to: • Make judgments and reach conclusions
• Develop and refine practical design and procedures



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WORD BANK
Below is a list of some key words and phrases you will need to learn and understand in this cell division
topic

.
10. Centromere
1. Anaphase
11. Chiasmata
2. Anaphase
12. Crossing over
3. Anther
13. Cytokinesis
4. Bivalent
14. Cytokinesis
5. Cell cycle
15. Diploid
6. Cell cycle
16. Diploid
7. Centromere
17. Egg
8. Centromere
18. Equator
9. Centromere

, 19. Equator 33. Mutation
20. Haploid 34. Pole
21. Homologous chromosomes 22. 35. Pole
Homologous chromosomes 23. Meiosis 36. Pollen
24. Meiosis 37. Pollen sac
25. Meiosis I 38. Prophase
26. Meiosis II 39. Prophase
27. Metaphase 40. Random assortment 41. Sister
28. Metaphase chromatids
29. Mitosis 42. Sister chromatids 43. Sperm
30. Mitosis 44. Spindle fibres 45. Spindle fibres 46.
31. Mitotic Index Telophase
32. Mitotic Index 47. Telophase




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