Photosynthesis & Cellular Respiration

During photosynthesis, what gas do plants release?

• oxygen
• carbon dioxide
• water
• nitrogen

Gas exchange through the stems or leaves of a plant takes place through the.....

• stomata
• chloroplasts
• roots
• underside of the leaves

Photosynthesis is important because....

• plants need air to breathe
• it makes the plants green
• it is the process by which plants make their own food
• without it the Earth would all be a desert

The energy that starts the process of photosynthesis comes from....

• sunlight
• transpiration
• cellular respiration
• germination

The process by which cells use oxygen to produce energy from food is called?

• photosynthesis
• transpiration
• cellular respiration
• germination

By which process do plants make their own food from carbon dioxide and water?

• cellular respiration
• transpiration
• chlorophyll
• photosynthesis

What gas do plants take in to make food?

• natural gas
• oxygen
• carbon dioxide
• oxygen and carbon dioxide

Why are many plants green?

• plant cells are green

• plants absorb green light

• chlorophyll reflects green light

• rigid cell walls are green

What products enter and exit through the stomata?

• oxygen and air
• carbon dioxide and water
• oxygen and water
• carbon dioxide and oxygen

How do plants get their energy?

• photosynthesis
• cellular respiration
• sunlight
• light
  another plant