Types of Reactions in Biology

What are the two main types of reactions mentioned in the foldable?

• Light Reaction and Dark Reaction

• Photosynthesis and Respiration

• Oxidation and Reduction

• Combustion and Fermentation

What should be included in the foldable for each reaction?

• Molecules needed, molecules produced, location in chloroplast, other names

• Temperature, pressure, volume, color

• Time, speed, distance, direction

• Mass, density, velocity, acceleration

Diagram of Light and Dark Reactions

• Light reactions occur in the thylakoid membranes and produce ATP and NADPH.

• Dark reactions occur in the stroma and use ATP and NADPH to synthesize glucose.

• Light reactions occur in the stroma and produce glucose directly.

• Dark reactions occur in the thylakoid membranes and produce oxygen.

What is the general equation for photosynthesis?

• 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

• C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

• 2H₂ + O₂ → 2H₂O

• N₂ + 3H₂ → 2NH₃

Where do the reactants for photosynthesis primarily come from?

• Soil and sunlight

• Air and water

• Rocks and minerals

• Fire and ice

What are the products of photosynthesis used for?

• Building plant structures and providing energy

• Creating soil and rocks

• Producing sound and light

• Generating wind and rain

What is the primary function of chloroplasts in plant cells?

• Cellular respiration

• Photosynthesis

• Protein synthesis

• DNA replication

What do chloroplasts contain that is essential for photosynthesis?

• Mitochondria

• Ribosomes

• Photosynthetic membranes

• Nucleus

Where is chlorophyll found within the chloroplast?

• In the nucleus

• In the photosynthetic membranes

• In the cytoplasm

• In the cell wall

What is the stroma in a chloroplast?

• The space inside the thylakoid membranes

• The space outside the thylakoid membranes

• A stack of thylakoids

• A cluster of pigment and protein