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AQA A LEVEL BIOLOGY PAPER 1 MARKING SCHEME 2023
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AQA A LEVEL BIOLOGY PAPER 1 MARKING SCHEME 2023
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AQA A LEVEL BIOLOGY PAPER 1 QP JUNE 2023
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AQA A LEVEL BIOLOGY PAPER 1 QP JUNE 2023
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AQA A-level Biology paper 1
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large molecules often contain carbon. why? - 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 - answer-add equal volumes of the sugar sample and benedicts reagent. 
heat the mixture in a water bath for 5 minutes. 
brick red precipitate will form. 
 
what is a reducing sugar? - answer-a sugar that can reduce (give electrons to) another chemical. 
 
describe the benedicts test for non ...
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AQA A-2024LEVEL BIOLOGY PAPER 1 MARKING SCHEME LATEST UPDATE 2023-
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AQA A-2024LEVEL BIOLOGY PAPER 1 MARKING SCHEME LATEST UPDATE 2023- 
Benedict's test 
Which food test is heated in a water bath? 
Sucrose 
Which disaccharide is not a reducing sugar? 
Test for non-reducing sugars 
Add acid. Neutralise. Add Benedicts. Heat. 
Hydrolysis 
Reaction performed by dilute HCl in the non reducing sugar test. 
Glucose + fructose 
During the non-reducing sugar test what is sucrose hydrolysed into? 
Alpha 
Which type of glucose makes up starch? 
amylose and amylopectin 
Nam...
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AQA A LEVEL BIOLOGY PAPER 1 QUESTIONS WITH VERIFIED ANSWERS
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AQA A LEVEL BIOLOGY PAPER 1 QUESTIONS WITH VERIFIED ANSWERS
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AQA A LEVEL BIOLOGY PAPER 1 2022 RETAKE EXAM QUESTIONS WITH VERIFIED ANSWERS
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AQA A LEVEL BIOLOGY PAPER 1 2022 RETAKE EXAM QUESTIONS WITH VERIFIED ANSWERS
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AQA A LEVEL BIOLOGY PAPER 1 (2024 VERSION) QUICK REVISION STUDY GUIDE WITH COMPLETE SOLUTION BASED ON PROFESSOR MATHEW
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AQA A LEVEL BIOLOGY PAPER 1 (2024 VERSION) QUICK REVISION STUDY GUIDE WITH COMPLETE SOLUTION BASED ON PROFESSOR MATHEW
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AQA A-level Biology paper 1 Questions and Answers Graded A+
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large molecules often contain carbon. why? they can readily form bonds with other carbon 
atoms. this forms a 'backbone'. other atoms can then attach. 
describe benedicts test for reducing sugars add equal volumes of the sugar sample and 
benedicts reagent. 
heat the mixture in a water bath for 5 minutes. 
brick red precipitate will form. 
what is a reducing sugar? a sugar that can reduce (give electrons to) another chemical. 
describe the benedicts test for non reducing sugars with food sampl...
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AQA A-level BIOLOGY (7402/1) Paper 1 MARKING SCHEME QUESTIONS AND ANSWERS 2024 SPECIMEN VI
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AQA A-level BIOLOGY (7402/1) Paper 1 MARKING SCHEME QUESTIONS AND ANSWERS 2024 SPECIMEN VI 
Question 1: 
 
(a) Describe what is meant by the term 'metabolic rate'. [2] 
 
(b) Explain how the control of body temperature is an example of homeostasis. [4] 
 
Answer 1: 
 
(a) 'Metabolic rate' refers to the rate at which chemical reactions occur within an organism's cells. It's a measure of the amount of energy expended by an organism per unit of time. 
 
(b) The control of body temperature is ...
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AQA A-level BIOLOGY (7402/1) Paper 1 PREDICTION QUESTIONS AND ANSWERS 2024 SPECIMEN VI
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AQA A-level BIOLOGY (7402/1) Paper 1 PREDICTION QUESTIONS AND ANSWERS 2024 SPECIMEN VI 
 
 
Question 1: 
 
(a) Describe what is meant by the term 'metabolic rate'. [2] 
 
(b) Explain how the control of body temperature is an example of homeostasis. [4] 
 
Answer 1: 
 
(a) 'Metabolic rate' refers to the rate at which chemical reactions occur within an organism's cells. It's a measure of the amount of energy expended by an organism per unit of time. 
 
(b) The control of body temperature is...
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