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WJEC & Eduqas NotesNucleic Acids, ATP &
Protein Synthesis
WJEC Unit 1
Eduqas Core Concepts
STUDY CHECKLIST AND ASSESSMENT
,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
Nucleic Acids, ATP & Protein Synthesis
Nucleic acids and DNA Replication
,1. Can you list the components of a nucleotide.
2. Can you draw and recognise a nucleotide.
3. Can you state the name of the bond formed between nucleotides.
4. Do you know the names of the 4 nitrogenous bases in DNA.
5. Do you know which nitrogenous base is different in RNA co0mparred to DNA.
6. Can you place the 4 nitrogenous bases into purines and pyrimidines.
7. Do you know the base pairing rule and chargaff’s ratio experiment.
8. Can you fully describe the structure of DNA.
9. Can you compare the structure of DNA with that of RNA.
10. Can you state the two major functions of DNA.
11. Can you explain how DNA replicates by semi conservative replication.
12. Can you describe the steps in DNA replication including the names and function of the two major
enzymes involved in the replication process.
13. Can you interpret and explain the results of the Meselson Stahl experiment.
ATP
14. Can you describe the structure of the ATP molecule.
15. Do you know the functions of ATP.
16. Do you know the meaning of the term: “Universal Energy Currency”.
17. Can you describe how energy is released from the ATP molecule.
18. Can you describe how ATP is formed.
19. Do you know what endergonic and exergonic reactions are and give examples of each.
Protein Synthesis
20. Do you know the structure of a gene in terms of exons and introns.
21. Can you describe the genetic code in terms of: triplet code (codon), degenerate and non-overlapping.
22. Do you know the one gene one polypeptide hypothesis
23. Can you describe the process of transcription.
24. Do you know what post translational modification of a protein is.
, 25. Can you describe the process of translation, including the function of mRNA, tRNA and rRNA.
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
4
WORD BANK
Below is a list of some key words and phrases you will need to learn and understand in this topic.
1. Adenine
2. Anti-codon
3. Coding strand
4. Codon
5. Codon-anticodon binding
6. Complementary base paring
7. Cytosine
8. Degenerate
9. DNA
10. DNA helicase
11. Double helix
12. Exon
13. Free RNA nucleotides
14. genetic code
15. Guanine
16. Hydrogen bond
17. Intron
18. mRNA
19. mRNA
20. Nitrogenous base
21. Non-coding strand
22. Non-overlapping
23. Nucleotide
24. Phosphodiester bond
25. Polynucleotide
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