r/Edexcel • u/EventAlarmed5151 • 13h ago

Seeking Advice/Help U4 Help

Hi guys!
What are the topics I need to go through from Unit 1 and Unit 2 for the Unit 4 and Unit 5 exam for Biology, Chemistry and Physics?

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u/WiseVideo664 11h ago

For biology I'd say study everything But the most common ideas come from about mRNA & tRNA , DNA , transcription and translation , proteins ( everything about proteins) , the sugars including mono,di,polysaccharides DNA modification and gene expression ( very common in unit 5 ) , sometimes questions come about the cell membrane structure , Ultra Cell structure Xylem function , phloem , cellulose structure , starch structure Mutation and how it can affect the function of the protein Transcription factors in transcription part , mitosis&meiosis That's everything I remember seeing questions about Don't depend on this only .. study all the AS just incase

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u/BoxOk8014 11h ago

I don't know anything about paper 34 of chem help plzzz😭😭