Photosynthesis

• What is the process by which plants and algae make their own food?

  Photosynthesis
• What are the reactants of photosynthesis?

  Carbon dioxide and water
• What is the chemical equation for photosynthesis?

  $6CO_2 +$$6H_2O \rightarrow C_6H_{12}O_6 +$$6O_2$
• How does carbon dioxide enter the leaf for photosynthesis?

  It diffuses from the atmosphere into the leaf through the stomata
• What is the gas produced during photosynthesis?

  Oxygen
• What is the word equation for photosynthesis?

  Carbon dioxide + water → glucose + oxygen
• Where does photosynthesis occur in plant cells?

  In the chloroplasts
• What pigment is found in chloroplasts that is essential for photosynthesis?

  Chlorophyll
• Why is photosynthesis considered an endothermic reaction?

  Because it absorbs energy from sunlight
• What is an example of an exothermic reaction in biology?

  Respiration
• What are the uses of glucose in a plant?

  • Used for respiration (aerobic and anaerobic)
  • Converted into insoluble starch for storage
  • Used to produce fat or oil for storage
  • Used to produce cellulose for cell wall strength
  • Combined with nitrates to produce amino acids for proteins
• What is the role of chlorophyll in photosynthesis?

  It absorbs light energy needed for photosynthesis
• What happens to the oxygen produced during photosynthesis?

  It diffuses out of the leaf through the stomata and then into the atmosphere
• How do the processes of photosynthesis and respiration differ in terms of energy?

  Photosynthesis absorbs energy, while respiration releases energy
• What is the relationship between photosynthesis and the production of proteins in plants?

  Glucose combines with nitrates to produce amino acids for proteins
• What is the chemical symbol for glucose?

  C6H12O6
• What is photosynthesis?

  An endothermic reaction where light energy is absorbed by the chloroplasts and used to cause water and carbon dioxide to react to produce glucose amd oxygen.
• What are the products of photosynthesise?

  Glucose and oxygen
• What type of reaction is photosynthesis

  Endothermic