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What process do plants use to make their own food?
Photosynthesis
What gas is RELEASED during photosynthesis?
Oxygen (O₂)
Why are mitochondria called the “power plants” of the cell?
They use oxygen to break down glucose to release energy.
How would closing the stomata affect photosynthesis?
Carbon dioxide could not enter, so photosynthesis would slow or stop.
What would happen to the balance of gases in the atmosphere without plants?
Oxygen would decrease and carbon dioxide would increase.
Where does photosynthesis take place in a PLANT CELL?
Chloroplast
In what part of the PLANT CELL does cellular respiration occur?
mitochondria
How are photosynthesis and cellular respiration related?
The products of one are the reactants of the other.
Why would a plant struggle to survive without water?
Water is needed for photosynthesis to make food.
How do plants and animals depend on each other using these processes?
Plants provide oxygen and food for the animals.
Animals provide carbon dioxide and nutrients (in their waste).
What pigment absorbs sunlight for photosynthesis?
Chlorophyll
What molecule stores energy for the plant during cellular respiration?
ATP (adenosine triphosphate)
Why is oxygen important for cellular respiration?
It is needed to break down glucose and release energy.
If a plant could not perform cellular respiration, what would happen?
It could not release energy from glucose and would not survive.
What would happen to life on Earth if photosynthesis stopped?
Plants would not produce food or oxygen, and most life would die.
What are the three ingredients needed for photosynthesis?
Sunlight, water (H₂O), and carbon dioxide (CO₂)
How does chlorophyll help plants during photosynthesis?
It absorbs sunlight to provide energy for the process.
Why do plants need water and carbon dioxide for photosynthesis?
They are reactants used to make glucose and oxygen.
How do plants help animals survive through photosynthesis?
They produce oxygen and food that animals need.
What are the reactants for photosynthesis?
HINT: Think what goes in.
Carbon dioxide - CO2
Sunlight
What type of sugar do plants produce during photosynthesis?
Glucose (C₆H₁₂O₆)
How is glucose used by plants after it is made?
It is used in cellular respiration to release energy.
What might happen to a plant if it does not get enough sunlight?
It would not make enough glucose and may die.
Why are both photosynthesis and cellular respiration necessary for plant survival?
Photosynthesis makes food
Cellular respiration releases usable energy.
Why is sunlight important for photosynthesis to work?
The sunlight gives the energy to break the bonds apart.