Biosphere Chapter 3

Photosynthesis is the process by which green plants capture energy from _______ and use it to make food molecules like glucose (sugar).

• oxygen
• sunlight
• food molecules
• none of the above

Identify the inputs (reactants) of photosynthesis.

• water, carbon dioxide, sunlight

• water, oxygen, sunlight

• water, carbon dioxide, glucose

• water, oxygen, carbon dioxide

Identify the inputs (reactants) of cellular respiration.

• water, oxygen

• water, carbon dioxide

• oxygen, sugar

• oxygen, sunlight

Cellular respiration only occurs in animals.

• true

• false

What is the purpose of cellular respiration?

• to make food for a plant
• to break down materials
• to make energy for animals only
• to make energy for all living organisms

In which part of a cell does cellular respiration take place?

• mitochondria
• leaf

• chloroplast
• nucleus

In which part of a cell does photosynthesis take place?

• mitochondria
• sun

• nucleus
• chloroplast

What is the original source of energy for all of life on Earth?

• glucose
• sunlight
• ATP
• H2O

What type(s) of cells perform cellular respiration?

• all cells
• animals
• plants
• bacteria

Which of these word formulas for cellular respiration is correct?

• Oxygen + Sugar → Energy + Carbon dioxide + Water

• Carbon + Sugar → Energy + Carbon dioxide + Water

• Nitrogen + Sugar → Energy + Carbon dioxide + Water

• Hydrogen + Sugar → Energy + Carbon dioxide + Water