All resources for B1.1 Cell Structures GCSE OCR Biology Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. Each 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 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 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 Comparing sizes of different cells Using standard form Using SI prefixes (nano, micro, milli, kilo, mega) Comparing electron microscopes and light microscopes.

All resources for B1.3 Respiration GCSE OCR Biology Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. Each 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 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 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.

All resources for B1.4 Photosynthesis GCSE OCR Biology Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. Each 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. The positive test for starch Experimental procedure for testing starch in leaves. Testing for the need of chlorophyll for photosynthesis. Testing for the need of light for photosynthesis. Testing for the need of carbon dioxide for photosynthesis. Testing oxygen produced via photosynthesis. Testing light intensity affects photosynthesis. 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. 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