Understanding Photosynthesis

What is the primary role of autotrophs in the ecosystem?

• To consume other organisms for energy

• To produce their own food using sunlight

• To decompose organic matter

• To provide shelter for animals

Which of the following is an example of a photosynthetic autotroph?

• Viruses

• Plants

• Animals

• Fungi

Where does photosynthesis primarily occur in plant cells?

• Nucleus

• Mitochondria

• Chloroplasts

• Ribosomes

What is the main pigment involved in photosynthesis?

• Anthocyanin

• Chlorophyll

• Xanthophyll

• Carotene

What is the primary transformation that occurs during photosynthesis?

• Thermal energy to light energy

• Mechanical energy to chemical energy

• Chemical energy to light energy

• Light energy to chemical energy

Which of the following is the balanced chemical equation for photosynthesis?

• 6 CO2 + 6 H2O → C6H12O6 + 6 O2

• C6H12O6 + 6 O2 → 6 CO2 + 6 H2O

• 6 O2 + 6 H2O → C6H12O6 + 6 CO2

• C6H12O6 + 6 CO2 → 6 H2O + 6 O2

What type of reaction is photosynthesis classified as?

• Exothermic

• Endothermic

• Combustion

• Decomposition

Why do autotrophs produce glucose?

• To release oxygen into the atmosphere

• To provide food for other organisms

• To use as an energy source for themselves

• To store energy in the form of fat

What happens to the excess glucose produced by autotrophs?

• It is used immediately for energy

• It is stored as starch

• It is released as waste

• It is converted into proteins

What are the next processes to explore after understanding photosynthesis?

• Photosynthesis and transpiration

• Aerobic respiration and fermentation

• Osmosis and diffusion

• Glycolysis and Krebs cycle