EXTRA photo and resp practice

What is the primary purpose of photosynthesis?

• To convert solar energy into chemical energy

• To break down glucose for energy

• To release oxygen into the atmosphere

• To absorb carbon dioxide from the atmosphere

In which organelle does photosynthesis occur?

• Nucleus

• Mitochondria

• Chloroplasts

• Ribosomes

Which types of organisms can perform photosynthesis?

• Plants and some bacteria

• Animals and fungi

• All living organisms

• Only plants

What are the reactants in the process of photosynthesis?

• Glucose and oxygen

• Carbon dioxide and water

• Sunlight and chlorophyll

• Oxygen and water

What are the products of photosynthesis?

• Carbon dioxide and water

• Glucose and oxygen

• Sunlight and chlorophyll

• Water and oxygen

What would happen to a plant if it were deprived of sunlight for an extended period?

• The plant would continue to photosynthesize normally

• The plant would switch to cellular respiration for energy

• The plant would be unable to produce glucose and eventually die

• The plant would produce more chlorophyll to compensate

Which of the following adaptations would be most beneficial for a plant living in a low-light environment?

• Larger leaves to absorb more sunlight

• Smaller leaves to reduce water loss

• Fewer chloroplasts to conserve energy

• Thicker cuticle to protect against UV radiation

How do animals obtain the carbon they need for growth and energy?

• By absorbing carbon dioxide from the atmosphere

• By consuming plants or other animals

• By producing glucose through photosynthesis

• By absorbing carbon from the soil

What process releases carbon dioxide back into the atmosphere?

• Photosynthesis

• Respiration

• Decomposition

• Both B and C

How does the carbon cycle contribute to the interdependence (relying on each other) of plants and animals?

• Plants and animals compete for carbon resources

• Plants provide carbon for animals, and animals return carbon to the atmosphere for plants

• The carbon cycle has no effect on plant and animal relationships

• Animals provide carbon for plants, and plants return carbon to the atmosphere for animals