Designed for the new specification AQA GCSE course but can be modified for other exam boards. 29 slides cover: respiration. By the end of the powerpoint students would have covered /: 4.4.2.1 Aerobic and anaerobic respiration Students should be able to describe cellular respiration as an exothermic reaction which is continuously occurring in living cells. The energy transferred supplies all the energy needed for living processes. Respiration in cells can take place aerobically (using oxygen) or anaerobically (without oxygen), to transfer energy. Students should be able to compare the processes of aerobic and anaerobic respiration with regard to the need for oxygen, the differing products and the relative amounts of energy transferred. Organisms need energy for: • chemical reactions to build larger molecules • movement • keeping warm. Aerobic respiration is represented by the equation: glucose + oxygen --> carbon dioxide + water Students should recognise the chemical symbols: C6H12O6, O2, CO2 and H2O. Anaerobic respiration in muscles is represented by the equation: glucose  lactic acid As the oxidation of glucose is incomplete in anaerobic respiration much less energy is transferred than in aerobic respiration. Anaerobic respiration in plant and yeast cells is represented by the equation: Glucose --> ethanol + carbon dioxide Anaerobic respiration in yeast cells is called fermentation and has economic importance in the manufacture of bread and alcoholic drinks. **4.4.2.2 Response to exercise ** During exercise the human body reacts to the increased demand for energy. The heart rate, breathing rate and breath volume increase during exercise to supply the muscles with more oxygenated blood. If insufficient oxygen is supplied anaerobic respiration takes place in muscles. The incomplete oxidation of glucose causes a build up of lactic acid and creates an oxygen debt. During long periods of vigorous activity muscles become fatigued and stop contracting efficiently. (HT only) Blood flowing through the muscles transports the lactic acid to the liver where it is converted back into glucose. Oxygen debt is the amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from the cells.

If you are looking for a lesson on the topic check out my acceleration lessson below: https://www.tes.com/teaching-resource/acceleration-11850810 Investigate: -the effect of varying the force on the acceleration of an object of constant mass -the effect of varying the mass of an object on the acceleration produced by a constant force.

Check out the lesson that goes with these questions: https://www.tes.com/teaching-resource/microscopes-11485231

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE course (Spec point 4.5.1.2) but can be modified for other exam boards. 11 slides covering Contact and non-contact forces. By the end of the powerpoint students would have covered: -Define what forces are -State the units for forces -Be able to explain the differences between contact and non-contact forces.

Check out the lesson that goes with these questions: https://www.tes.com/teaching-resource/culturing-microorganisms-11910368

For more teaching resources check out: www.tes.com/teaching-resources/shop/mr_science Please leave a review Lesson covering: Factors that lead to CVD Treatments for CVD Evaluate different treatments for cardiovascular disease

Check out my other resources at www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE course (covers spec point 4.1.1.3) but can be modified for other exam boards. 13 slides covering Plant specialisation. By the end of the powerpoint students would have covered: -Describe how specialised cells in a plant carry out a particular function -Identify different parts of specialised plant cells and relate these identified parts to their function.

Get a discount on this resource when you buy directly from www.mrscience.co.uk Designed for the new specification AQA GCSE course but can be modified for other exam boards. 22 slides covering Microscopy: By the end of the powerpoint students would have covered (includes a required practical): Students should be able to: understand how microscopy techniques have developed over time explain how electron microscopy has increased understanding of sub-cellular structures. Limited to the differences in magnification and resolution. An electron microscope has much higher magnification and resolving power than a light microscope. This means that it can be used to study cells in much finer detail. This has enabled biologists to see and understand many more sub-cellular structures. Students should be able to carry out calculations involving magnification, real size and image size using the formula: magnification = size of image size of real object Students should be able to express answers in standard form if appropriate. Required practical activity 1: use a light microscope to observe, draw and label a selection of plant and animal cells. A magnification scale must be included.

Designed for the new specification AQA GCSE( covers spec point4.1.1.1 ) course but can be modified for other exam boards. 19 slides covering Atoms, Elements and Compounds. By the end of the powerpoint students would have covered: -Understand that elements can be represented by a chemical symbol -Recognise how the periodic table is arranged -Describe how compounds are formed

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE(Spec point 4.5.1.1) course but can be modified for other exam boards. 16 slides covering Plant specialisation. By the end of the powerpoint students would have covered: -Define the key words, vector, displacement and scalar; -Be able to represent Vector quantities; -Determine the direction of a vector and magnitude from a scale diagram.

Put all your students names into the different slides, click slide show and the powerpoint will go through all the names and you can randomly stop the slide show to pick a student to ask a question. Press the left arrow to stop and right arrow to start again.

In this investigation you will test three water samples from different sources for pH and the presence of dissolved solids. After distillation of the sea water, you will test the water again to check that dissolved solids have been removed, making the water fit to drink. lesson found here: www.tes.com/teaching-resource/potable-water-11771314

Free resource that can be used as part of your powerpoint when teaching the topic. The last slide can be printed for your pupils to annotate. It’s not inteded to be a full lesson.

Designed for the new specification IGCSE edexcel course but can be used for other examination boards. Covers: (a)Level of organisation 2.1 describe the levels of organisation in organisms: organelles, cells, tissues, organs and systems (b) Cell structure 2.2 describe cell structures, including the nucleus, cytoplasm, cell membrane, cell wall, mitochondria, chloroplasts, ribosomes and vacuole 2.3 describe the functions of the nucleus, cytoplasm, cell membrane, cell wall, mitochondria, chloroplasts, ribosomes and vacuole 2.4 know the similarities and differences in the structure of plant and animal cells 2.5B explain the importance of cell differentiation in the development of specialised cells 2.6B understand the advantages and disadvantages of using stem cells in medicine Contains exam style questions

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 27 slides covering Monoclonal antibodies By the end of the powerpoint students would have covered: 4.3.2.1 Producing monoclonal antibodies 4.3.2.2 Uses of monoclonal antibodies

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: Humans 2.59  describe the composition of the blood: red blood cells, white blood cells, platelets and plasma 2.60  understand the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy 2.61  understand how adaptations of red blood cells make them suitable for the transport of oxygen, including shape, the absence of a nucleus and the presence of haemoglobin 2.62 understand how the immune system responds to disease using white blood cells, illustrated by phagocytes ingesting pathogens and lymphocytes releasing antibodies specific to the pathogen 2.63B understand how vaccination results in the manufacture of memory cells, which enable future antibody production to the pathogen to occur sooner, faster and in greater quantity 2.64B understand how platelets are involved in blood clotting, which prevents blood loss and the entry of micro-organisms 2.65  describe the structure of the heart and how it functions 2.66  explain how the heart rate changes during exercise and under the influence of adrenaline 2.67  understand how factors may increase the risk of developing coronary heart disease 2.68  understand how the structure of arteries, veins and capillaries relate to their function 2.69  understand the general structure of the circulation system, including the blood vessels to and from the heart and lungs, liver and kidneys Contains examination questions

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: 2.51  understand why simple, unicellular organisms can rely on diffusion for movement of substances in and out of the cell 2.52  understand the need for a transport system in multicellular organisms Flowering plants 2.53  describe the role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant 2.54  describe the role of xylem in transporting water and mineral ions from the roots to other parts of the plant 2.55B understand how water is absorbed by root hair cells 2.56B understand that transpiration is the evaporation of water from the surface of a plant 2.57B understand how the rate of transpiration is affected by changes in humidity, wind speed, temperature and light intensity 2.58B practical: investigate the role of environmental factors in determining the rate of transpiration from a leafy shoot Contains exam questions

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: (g) Gas exchange Flowering plants 2.40B understand the role of diffusion in gas exchange 2.41B understand gas exchange (of carbon dioxide and oxygen) in relation to respiration and photosynthesis 2.42B understand how the structure of the leaf is adapted for gas exchange 2.43B describe the role of stomata in gas exchange 2.44B understand how respiration continues during the day and night, but that the net exchange of carbon dioxide and oxygen depends on the intensity of light 2.45B practical: investigate the effect of light on net gas exchange from a leaf, using hydrogen-carbonate indicator Includes a video for flipped learning.

Designed for the new specification IGCSE edexcel course but can be used for other examination boards. Covers: ( c ) Biological molecules 2.7 identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils) 2.8 describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugars, protein from amino acids, and lipid from fatty acids and glycerol 2.9 practical: investigate food samples for the presence of glucose, starch, protein and fat 2.10 understand the role of enzymes as biological catalysts in metabolic reactions 2.11 understand how temperature changes can affect enzyme function, including changes to the shape of active site 2.12 practical: investigate how enzyme activity can be affected by changes in temperature 2.13 understand how enzyme function can be affected by changes in pH altering the active site  2.14B practical: investigate how enzyme activity can be affected by changes in pH Contains exam style questions