Photosynthesis and 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

What gas do plants take in to make food?

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

What products enter and exit through the stomata?

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

The purpose of photosynthesis is ...

• to make glucose
• to break glucose
• to capture energy from the sun
• to change carbon dioxide

The purpose of cellular respiration is to

• make glucose
• break glucose
• capture the energy in sunlight
• change carbon dioxide

The organelle responsible for the chemical reaction in photosynthesis is the...

• chloroplast
• cytoplasm
• cell membrane
• mitochondrai