Biology > AQA > AQA_A Level Biology Paper 1_Mark Scheme 2022 | Practice Paper 1 (All)

AQA_A Level Biology Paper 1_Mark Scheme 2022 | Practice Paper 1

Document Content and Description Below

AQA A Level Biology Paper 1 Mark Scheme 2022 Practice Paper 1 - - - - 1 (a) (i) fructose; 1 (ii) correctly drawn (OH group at bottom left); 1 (b) hydrolysis; 1 (c) (i) heat with Benedict’... s solution (disqualify if HCl added); orange / brown / brick red / green / yellow colour or precipitate; 2 (ii) biuret test / NaOH + CuSO4; purple / violet / lilac / mauve; 2 (d) Starch (max 3) 1. Context of storage for starch, structure for cellulose 2. Helical/ spiral shape so compact; 3. Large (molecule)/insoluble so osmotically inactive; Accept: does not affect water potential/ψ. 4. Branched so glucose is (easily) released for respiration; Ignore: unbranched. 5. Large (molecule) so cannot leave cell/cross cell-surface membrane; Cellulose (max 3) 5. Long, straight/unbranched chains of β glucose; 6. Joined by hydrogen bonding; Note: references to ‘strong hydrogen bonds’ disqualifies this mark point. 7. To form (micro/macro)fibrils; 8. Provides rigidity/strength; - - - AQA A Level Biology Paper 1 Mark Scheme 2022 Practice Paper 1 - - - - 1 (a) (i) fructose; 1 (ii) correctly drawn (OH group at bottom left); 1 (b) hydrolysis; 1 (c) (i) heat with Benedict’s solution (disqualify if HCl added); orange / brown / brick red / green / yellow colour or precipitate; 2 (ii) biuret test / NaOH + CuSO4; purple / violet / lilac / mauve; 2 (d) Starch (max 3) 1. Context of storage for starch, structure for cellulose 2. Helical/ spiral shape so compact; 3. Large (molecule)/insoluble so osmotically inactive; Accept: does not affect water potential/ψ. 4. Branched so glucose is (easily) released for respiration; Ignore: unbranched. 5. Large (molecule) so cannot leave cell/cross cell-surface membrane; Cellulose (max 3) 5. Long, straight/unbranched chains of β glucose; 6. Joined by hydrogen bonding; Note: references to ‘strong hydrogen bonds’ disqualifies this mark point. 7. To form (micro/macro)fibrils; 8. Provides rigidity/strength; - - - [Show More]

Last updated: 1 year ago

Preview 1 out of 7 pages

Reviews( 0 )

Recommended For You

 Biology> AQA > AQA AS BIOLOGY PAPER 1 MARK SCHEME 2021 (All)

preview
AQA AS BIOLOGY PAPER 1 MARK SCHEME 2021

AQA AS BIOLOGY PAPER 1 MARK SCHEME 2021

By Professor_Chue , Uploaded: Jun 12, 2022

$15.5

 Geography> AQA > AQA_GCSE Geography Paper 2_Mark Scheme 2022 | Practice Paper 2 Challenges in the Human Environment (All)

preview
AQA_GCSE Geography Paper 2_Mark Scheme 2022 | Practice Paper 2 Challenges in the Human Environment

AQA_GCSE Geography Paper 2_Mark Scheme 2022 | Practice Paper 2 Challenges in the Human Environment - - - - Question 1 Urban issues and challenges 01.1 What is the meaning of the term ‘urban gro...

By A-Level Guru , Uploaded: Jun 04, 2022

$7.5

 English> AQA > AQA_GCSE English Language Paper 2_Mark Scheme 2022 | Practice Paper 2 Writers’ Viewpoints and Perspectives (All)

preview
AQA_GCSE English Language Paper 2_Mark Scheme 2022 | Practice Paper 2 Writers’ Viewpoints and Perspectives

AQA_GCSE English Language Paper 2_Mark Scheme 2022 | Practice Paper 2 Writers’ Viewpoints and Perspectives - - - - - Section A: Reading 1 Read again the first part of the source, from lines 1 t...

By A-Level Guru , Uploaded: Jun 04, 2022

$7.5

 Geography> AQA > AQA_GCSE Geography Paper 1_Mark Scheme 2022 | Practice Paper 1 Living with the Physical Environment (All)

preview
AQA_GCSE Geography Paper 1_Mark Scheme 2022 | Practice Paper 1 Living with the Physical Environment

AQA GCSE Geography Paper 1_Mark Scheme 2022 Practice Paper 1 Living with the Physical Environment - - - - Question 1 The challenge of natural hazards 1.1 What is a plate margin? A plate marg...

By A-Level Guru , Uploaded: Jun 03, 2022

$7.5

 Biology> AQA > AQA A level biology paper 1 marking scheme 2022 (All)

preview
AQA A level biology paper 1 marking scheme 2022

AQA A level biology paper 1 marking scheme 2022

By Nightingale , Uploaded: Jun 03, 2022

$7

 Physics> AQA > AQA_AS Level Physics Paper 2_Mark Scheme 2022 | Practice Paper 2 (All)

preview
AQA_AS Level Physics Paper 2_Mark Scheme 2022 | Practice Paper 2

AQA_AS Level Physics Paper 2_Mark Scheme 2022 | Practice Paper 2 - - Section A 1 (a) (i) Heating result in increased pressure because of: 2 more collisions (of molecules) with wall per second OR...

By A-Level Guru , Uploaded: Jun 02, 2022

$7.5

 Biology> AQA > AQA_GCSE Trilogy Biology 2H_Mark Scheme 2022 | Practice Paper 2 Higher (All)

preview
AQA_GCSE Trilogy Biology 2H_Mark Scheme 2022 | Practice Paper 2 Higher

AQA_GCSE Trilogy Biology 2H_Mark Scheme 2022 | Practice Paper 2 Higher - - - GCSE COMBINED SCIENCE BIOLOGY MARK SCHEME Practice Paper 2 Higher - - 1 (a) evaporates 1 Sea 1 Sun 1 accept sun...

By A-Level Guru , Uploaded: Jun 02, 2022

$8.5

 Biology> AQA > AQA_GCSE Trilogy Biology 1H_Mark Scheme 2022 | Practice Paper 1 Higher (All)

preview
AQA_GCSE Trilogy Biology 1H_Mark Scheme 2022 | Practice Paper 1 Higher

AQA_GCSE Trilogy Biology 1H_Mark Scheme 2022 | Practice Paper 1 Higher - - - GCSE COMBINED SCIENCE BIOLOGY MARK SCHEME Practice Paper 1 Higher - - - 1 (a) mitosis 1 (b) 3 1 (c) different...

By A-Level Guru , Uploaded: Jun 02, 2022

$7.5

 Biology> AQA > AQA_GCSE Trilogy Biology 1H_Question Paper 2022 | Practice Paper 1 Higher (All)

preview
AQA_GCSE Trilogy Biology 1H_Question Paper 2022 | Practice Paper 1 Higher

AQA_GCSE Trilogy Biology 1H_Question Paper 2022 | Practice Paper 1 Higher GCSE COMBINED SCIENCE: BIOLOGY Name: Practice Paper 1 Higher - - - 1 The diagram shows how cells from human embryos can...

By A-Level Guru , Uploaded: Jun 02, 2022

$7.5

 Chemistry> AQA > AQA_AS Level Chemistry Paper 1_Mark Scheme 2022 | Practice Paper 1 (All)

preview
AQA_AS Level Chemistry Paper 1_Mark Scheme 2022 | Practice Paper 1

AQA_AS Level Chemistry Paper 1_Mark Scheme 2022 | Practice Paper 1 1 (a) (i) [H+][OH−] OR [H3O+][OH−] 1 Ignore (aq) Must have [ ] not ( ) (ii) 3.46 × 10−14 (= 1.86 × 10−7) 2 If no square root,...

By A-Level Guru , Uploaded: Jun 02, 2022

$7.5

AQA

$7.50

Add to cart

Instant download

Can't find what you want? Try our AI powered Search

OR

GET ASSIGNMENT HELP
865
0

Document information


Connected school, study & course



About the document


Uploaded On

May 30, 2022

Number of pages

7

Written in

Seller


seller-icon
A-Level Guru

Member since 2 years

525 Documents Sold


Additional information

This document has been written for:

Uploaded

May 30, 2022

Downloads

 0

Views

 865

Document Keyword Tags

THE BEST STUDY GUIDES

Avoid resits and achieve higher grades with the best study guides, textbook notes, and class notes written by your fellow students

custom preview

Avoid examination resits

Your fellow students know the appropriate material to use to deliver high quality content. With this great service and assistance from fellow students, you can become well prepared and avoid having to resits exams.

custom preview

Get the best grades

Your fellow student knows the best materials to research on and use. This guarantee you the best grades in your examination. Your fellow students use high quality materials, textbooks and notes to ensure high quality

custom preview

Earn from your notes

Get paid by selling your notes and study materials to other students. Earn alot of cash and help other students in study by providing them with appropriate and high quality study materials.

WHAT STUDENTS SAY ABOUT US


What is Browsegrades

In Browsegrades, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
 FAQ
 Questions? Leave a message!

Follow us on
 Twitter

Copyright © Browsegrades · High quality services·