Biology at gcse level - Study guides, Revision notes & Summaries

Aqa GCSE Biology B3 Question and answers rated A+ 2024 What is Osmosis? - correct answer It is the diffusion of water through a semi (partially) permeable membrane. the movement of water molecules from an area of high concentration to low. What are Isotonic drinks (sports drinks)? - correct answer Isotonic drink are drinks that contains a similar level of sugar, ions and water of that of human body. The sugar replaces the amount of sugar released during exercise, and the water and ions r...

GCSE Biology (AQA) Verified Answers microscope an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times. fine focus Knob that allows you to make fine focusing adjustments. (small knob) objective the lens at the bottom near the sample eyepiece A lens that magnifies the image formed by the objective. course focus used to make big changes in focus (large knob) magnification = size of the imag...

GCSE BIOLOGY F Foundation Tier Paper 2F Time allowed: 1 hour 45 minutes For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in the spaces provided. • If you need extra space for your answer(s), u...

AQA GCSE Biology - B5 Exam Questions and Answers What is homeostasis? - Answer️️ -The regulation of conditions inside the body to maintain a stable internal environment in response to changes in both internal and external conditions What things do automatic control systems regulate? - Answer️️ -Body temperature, blood glucose level and water content What are the three main components that work together in automatic control systems? - Answer️️ -Receptors, coordination centres ...

GCSE Biology (AQA) Exam Questions and Answers 100% Verified and Updated | Graded A+ microscope - Answer️️ -an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times. fine focus - Answer️️ -Knob that allows you to make fine focusing adjustments. (small knob) objective - Answer️️ -the lens at the bottom near the sample eyepiece - Answer️️ -A lens that magnifies the image formed by t...

AQA GCSE Biology Paper 1 Graded A+ Magnification equation ️Magnification= image size/actual object size Light microscope- how many um in 1 mm ️1000 um light microscope- how many nm in 1 um ️1000 nm Light microscope- why can we see the nucleus and cell wall but not the mitochondria ️Too small and not stained light microscope- how can we see smaller parts of cells ️An electron microscope has much more resolution and magnification What is osmosis? ️The movement of water ...

GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme June 2023 Version: 1.0 Final *236G8464/B/2H/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examination. The standardisat...

GCSE BIOLOGY 8461/2H Paper 2 Higher Tier Mark scheme Version: 1.0 Final Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examinat...

AQA GCSE Biology B3 What is Osmosis? It is the diffusion of water through a semi (partially) permeable membrane. the movement of water molecules from an area of high concentration to low. What are Isotonic drinks (sports drinks)? Isotonic drink are drinks that contains a similar level of sugar, ions and water of that of human body. The sugar replaces the amount of sugar released during exercise, and the water and ions replaces the water and ions that are lost via sweating. What two w...

Students’ Lab Book for AQA AS & A-Level Biology 7401/7402 Covers the complete CPAC requirements for the investigation skills relevant to examinations 2 CONTENTS How to use this Lab Book – notes to teachers 9 - notes to students 12 - Practical and mathematical skills grid 13 Skills development requirements 14 Mathematical requirements & exemplifications 16 Glossary of terms 19 Suggested templates for skills development 21 (research, planning, concluding & evalu...