Course review
Review each learning objective in this topic, then open its concept explanation or question set.
Learning objective
• Photosynthesis converts light energy into chemical energy in carbon compounds • Photoautotrophs use chlorophyll in chloroplasts or cyanobacterial membranes
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Carbon dioxide is reduced to carbohydrate using hydrogen from water • Glucose represents the main stored product, though many compounds are synthesized
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Oxygen is released from photolysis of water, not directly from CO₂ • Oxygenic photosynthesis occurs in plants, algae, and cyanobacteria
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Paper chromatography separates chlorophylls and accessory pigments • Rf values compare pigment movement relative to solvent front
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Chlorophyll and accessory pigments absorb specific wavelengths • Absorbed light excites electrons for light-dependent reactions
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Absorption spectra show wavelengths absorbed by pigments • Action spectra show wavelengths most effective for photosynthesis rate
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Light intensity, CO₂ concentration, and temperature can limit photosynthesis • Investigations change one variable and estimate rate from O₂ production or CO₂ uptake
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• CO₂ enrichment tests whether increased CO₂ raises photosynthesis or growth • Greenhouse and FACE experiments compare realistic crop and ecosystem responses
Start with the concept explanation, then practise to create mastery evidence.