AQA A LEVEL BIOLOGY PAPER 1

AQA A LEVEL BIOLOGY Paper 1 MS .1. General The mark scheme for each question shows: • the marks available for each part based on the question • the total marks available for the question • the typical answer or answers which are expected • extra information to help the examiner make his or her judgement and help to delineate what is acceptable or not worthy based on credit or, within discursive answers, to give an overview basedon the areawithinwhich a mark or marks may be awarded. ...

AQA A LEVEL BIOLOGY Paper 1 MS.1. General The mark scheme for each question shows: • the marks available for each part based on the question • the total marks available for the question • the typical answer or answers which are expected • extra information to help the examiner make his or her judgement and help to delineate what is acceptable or not worthy based on credit or, within discursive answers, to give an overview basedon the areawithinwhich a mark or marks may be awarded. ...

AQA A-level BIOLOGY Paper 1 QUESTION PAPER

AQA A-level Biology paper 1 questions and answers

Water removed from the reactants Condensation The addition of water to the reactants Hydrolysis Add 2cm³ of food sample (in solution). Add 2cm³ of benedict's Reagent. Heat the solution in a water bath for 3 minutes. Change from blue to brick red. CuO formed Test for Reducing Sugars Add 2cm³ of food sample.Add 2cm³ of dilute HCL then heat.Add 2cm³ of NaHCO3.Then do test for reducing sugars. Non-Reducing Sugars Add drops of iodine to starch solution. Colour change to blue-black ...

AQA A LEVEL BIOLOGY PAPER 1 AQA A LEVEL BIOLOGY PAPER 1 AQA A LEVEL BIOLOGY PAPER 1

QUESTIONS AND ANSWERS

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 the fluid mosaic model? Ans- States that a membrane is a fluid structure (because phospholipids are constantly moving) with a "mosaic" of various proteins embedded in it Describe the structure an...