GCSE OCR Biology: B1.4 Photosynthesis

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