AQA A LEVEL BIOLOGY Papers 2023

AQA A-Level Biology Paper 1 2023 Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 2. Idea of TWO codons/binding sites; 3. tRNA with ANTICODONS binds; 4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 5. M...

AQA A-Level Biology Paper 1 Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 2. Idea of TWO codons/binding sites; 3. tRNA with ANTICODONS binds; 4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 5. Moves ...

AQA A-level Biology paper 1 Rated A large molecules often contain carbon. why? Ans- they can readily form bonds with other carbon atoms. this forms a 'backbone'. other atoms can then attach. describe benedicts test for reducing sugars Ans- add equal volumes of the sugar sample and benedicts ...

AQA A Level Biology 2023/2024 assessment materials Describe the chemical reactions involved in the conversion of polymers to monomers and monomers to polymers Give TWO named examples of polymers and their associated monomers to illustrate your answer1. A condensation reaction joins monomers t...

AQA A LEVEL BIOLOGY Paper 1 2023 What is the function of the cell membrane? Ans- To control what enters and leaves the cell, acts as a barrier between the cell and its environment. What structural feature of the cell membrane allows substances to enter/leave? Ans- Partially permeable What is ...