AQA A-level Biology paper 1 Q&A AQA A Level Biology Mock Paper 1 Q&A Biology AQA A level 7401/1 Paper 1 Q&A AQA A-Level Biology Paper 1 2023 Q&A AQA A-Level Biology: Paper 1 2021 questions and answers Biology AQA Summer 2021 assessment
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8.2 define non-coding base sequences and describe where the non coding multiple repeats are positioned in the genome. - Correct answer-- DNA that does not code for protein - positioned between genes 4.1 use figure 5 to explain how human mass at birth is affected by stabilising selection. - Corr...
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Add to cart8.2 define non-coding base sequences and describe where the non coding multiple repeats are positioned in the genome. - Correct answer-- DNA that does not code for protein - positioned between genes 4.1 use figure 5 to explain how human mass at birth is affected by stabilising selection. - Corr...
1.1 Describe the induced fit model of enzyme action and how an enzyme acts as a catalyst. - Correct answer-- The substrate binds to the active site and forms an ES complex. - The active site changes shape slightly so it's complimentary to the substrate. - This reduces the activation energy. 1....
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Add to cart1.1 Describe the induced fit model of enzyme action and how an enzyme acts as a catalyst. - Correct answer-- The substrate binds to the active site and forms an ES complex. - The active site changes shape slightly so it's complimentary to the substrate. - This reduces the activation energy. 1....
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Describe the role of a ribosome in the production of a polypeptide. /3 - Correct answer1. 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 along (mRNA to th...
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Add to cartDescribe the role of a ribosome in the production of a polypeptide. /3 - Correct answer1. 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 along (mRNA to th...
• The human cell then makes a complementary strand to the HIV DNA. The complementary strand is made in the same way as a new complementary strand is made during semi-conservative replication of human DNA. Describe how the complementary strand of HIV DNA is made. - Correct answer-- there are co...
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Add to cart• The human cell then makes a complementary strand to the HIV DNA. The complementary strand is made in the same way as a new complementary strand is made during semi-conservative replication of human DNA. Describe how the complementary strand of HIV DNA is made. - Correct answer-- there are co...
Give the 2 types of molecule from which a ribosome is made (2) - Correct answer-1. ribosomal Proteins 2. ribosomal RNA Describe the role of a ribosome in the production of a polypeptide. Do not include transcription in your answer (3) - Correct answer-1. mRNA binds to ribosome 2. allows tRNA wi...
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Add to cartGive the 2 types of molecule from which a ribosome is made (2) - Correct answer-1. ribosomal Proteins 2. ribosomal RNA Describe the role of a ribosome in the production of a polypeptide. Do not include transcription in your answer (3) - Correct answer-1. mRNA binds to ribosome 2. allows tRNA wi...
large molecules often contain carbon. why? - Correct answer-they can readily form bonds with other carbon atoms. this forms a 'backbone'. other atoms can then attach. describe benedicts test for reducing sugars - Correct answer-add equal volumes of the sugar sample and benedicts reagent. heat ...
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Add to cartlarge molecules often contain carbon. why? - Correct answer-they can readily form bonds with other carbon atoms. this forms a 'backbone'. other atoms can then attach. describe benedicts test for reducing sugars - Correct answer-add equal volumes of the sugar sample and benedicts reagent. heat ...
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