This presentation covers OCR Gateway Biology 9-1 B2.1.5 Cell Differentiation This PowerPoint is a whole lessons included with student activities and animated answers. Describing the structure of the following cells: Sperm cell Fat cell Red blood cells Ciliated cells Palisade cells

This presentation covers OCR Gateway Biology 9-1 B2.1.4 Mitosis This PowerPoint is a whole lessons included with student activities and animated answers. The cell cycle DNA replication Movement of chromosomes Cytokinesis (cell division) Growth of daughter cells.

This presentation covers OCR Gateway Biology 9-1 B2.1.3 Active Transport This PowerPoint is a whole lessons included with student activities and animated answers. Definition of active transport Key features of active transport Against concentration gradient. ATP and respiration Protein carriers in cell membrane Active transport in plant cells - root hair cells Active transport and protein carriers

This presentation covers OCR Gateway Biology 9-1 B2.1.2 Osmosis This PowerPoint is a whole lessons included with student activities and animated answers. Definition of osmosis. Explaining water potential and concentration of solution. How cells change during osmosis - turgid, lysis, crenated, plasmolysed

This presentation covers OCR Gateway Biology 9-1 B2.1.1 Diffusion This PowerPoint is a whole lessons included with student activities and animated answers. Definition of diffusion from high concentration to lower concentration. What diffuses in and out of cells. How the rate of diffusion is affected by distance, surface area, and concentration gradient. How the human body has adapted to increase the rate of diffusion.

This presentation covers OCR Gateway Biology 9-1 B1.4.4 Interaction of limiting factors This PowerPoint is a whole lessons included with student activities and animated answers. Experimental procedures to investigate how the rate of photosynthesis is affected by: Light level Temperature Carbon dioxide concentration Inverse square law for relative light intensity

This presentation covers OCR Gateway Biology 9-1 B1.4.3 Factors Affecting Photosynthesis This PowerPoint is a whole lessons included with student activities and animated answers. Definition for rate of photosynthesis The rate of photosynthesis affects the rate of biomass Limiting factors include, light level, carbon dioxide concentration, and temperature. Graphs for rate of photosynthesis against light level, carbon dioxide concentration, and temperature. Plotting data graphs. Exam questions.

This presentation covers OCR Gateway Biology 9-1 B1.4.1 Photosynthesis This PowerPoint is a whole lessons included with student activities and animated answers. Word and symbol equation for photosynthesis. Carbon dioxide diffuses from the air through the stomata. Water travels by osmosis through the root hair cells. Photosynthesis occurs inside the plant’s chloroplast. Chloroplasts contain a green pigment called chlorophyll. Photosynthesis is an endothermic reaction. The two main stages of photosynthesis. Comparing photosynthesis and aerobic respiration.

This presentation covers OCR Gateway Biology 9-1 B1.3.3 Anaerobic Respiration This PowerPoint is a whole lessons included with student activities and animated answers. Recap of aerobic respiration Conditions for anaerobic respiration Word equation for anaerobic respiration in mammals Lactic acid and its affects. Oxygen debt Comparing aerobic and anaerobic respiration in mammals. Anaerobic respiration in plants - fermentation. Fermentation word equation and symbol equation. Exam questions.

This presentation covers OCR Gateway Biology 9-1 B1.3.1 Carbohydrates, Proteins, and Lipids This PowerPoint is a whole lessons included with student activities and animated answers. The three main macronutrients - carbohydrates, proteins, and lipids Names of enzymes - carbohydrase, amylase, protease, lipase What the macronutrients are broken down into - simple sugars, amino acids, fatty acids and glycerol. Metabolic rate Food tests and the positive results

This presentation covers OCR Gateway Biology 9-1 B1.2.4 Enzyme Reactions This PowerPoint is a whole lessons included with student activities and animated answers. Enzymes-catalysed reactions Rate of reaction Denaturing of enzymes and the active site Optimum temperature and optimum pH for enzymes Definition of concentration Increasing concentration of enzymes and substrates Saturation of substrates

This presentation covers OCR Gateway Biology 9-1 B1.3.2 Aerobic Respiration This PowerPoint is a whole lessons included with student activities and animated answers. Word equation for aerobic respiration Balanced symbol equation for aerobic respiration Aerobic respiration is an exothermic reaction The structure of mitochondria ATP and its uses Why blood flow increases to muscles when exercising

This presentation covers OCR Gateway Biology 9-1 B1.2.2 Transcription and Translation This PowerPoint is a whole lessons included with student activities and animated answers. The role of proteins and AI Proteins as polymers Explaining transcription mRNA and complementary bases Explaining translation

This presentation covers OCR Gateway Biology 9-1 B1.2.3 Enzymes This PowerPoint is a whole lessons included with student activities and animated answers. Enzymes are made of protein. Enzymes are biological catalysts. Catalysts speed up the rate of reaction without being used up themselves. Enzymes and the lock and key hypothesis. Enzymes breaking down and bonding substrates.

This presentation covers OCR Gateway Biology 9-1 B1.2.1 DNA This PowerPoint is a whole lessons included with student activities and animated answers. DNA stands for deoxyribonucleic acid. DNA is found in the nucleus of cells. DNA is packaged into a thread-like structure called chromosomes. Humans typically have 46 chromosomes shared from their parents. Genes are sections of DNA that code for physical characteristics. The structure of DNA. DNA is comprised of monomers called nucleotides. A nucleotide consists of a phosphate group, a sugar (deoxyribose), and an organic base. There are four organic bases: Adenine, A. Thymine, T. Cytosine, C. Guanine, G. Hydrogen bonds in DNA.

This presentation covers OCR Gateway Biology 9-1 B1.1.2 Bacterial Cells This PowerPoint is a whole lessons included with student activities and animated answers. Typical size of bacterial cells Subcellular structure of bacterial cells Functions of subcellular structure of bacterial cells Comparing animal, plant, and bacterial cells Revision activity - flash cards Print out of bacterial cell

This presentation covers OCR Gateway Biology 9-1 B1.1.3 Light Microscopy This PowerPoint is a whole lessons included with student activities and animated answers. Labeling a light microscope Defining magnification and resolution. Explaining why stains are used for light microscope. Calculating total magnification, objective lens magnification and eyepiece lens magnification. Calculating actual size, magnification, and magnified size of objects. Converting from from micrometre (µm) to millimetres (mm) Rearranging equations

This presentation covers OCR Gateway Biology 9-1 B1.1.4 Electron Microscopy This PowerPoint is a whole lessons included with student activities and animated answers. Comparing sizes of different cells Using standard form Using SI prefixes (nano, micro, milli, kilo, mega) Comparing electron microscopes and light microscopes.

This presentation covers OCR Gateway Biology 9-1 B1.1.1 Animal and Plant Cells This PowerPoint is a whole lessons included with student activities and animated answers. Cells are the building blocks of living objects. Definition of eukaryotic cells Typical size of eukaryotic cells Subcellular structure of animal cells Subcellular structure of plant cells Organelles and their functions Revision activities (Look, Cover, Write, Check) Print out of animal and plant cells

OCR Applied Science Level 3 - Module 21: Product Testing Techniques. This PowerPoint presentation with worked examples and student activities covers: Topic 2.1 of Module 21: Product Testing Techniques. 2.1 Types of testing i.e.: • in-vitro • in-vivo • titration • extraction and separation