Inputs
Name one thing a plant needs for photosynthesis.
Answer: Sunlight, water, or air
What sugar does a plant make during photosynthesis?
Answer: Glucose.
Which structure makes food?
Answer: Leaves.
What happens if a plant does not get sunlight?
Answer: It cannot make food.
Photosynthesis happens mostly in which part of the plant?
Answer: Leaves.
Where does a plant get carbon dioxide?
Answer: From the air.
What gas is released into the air during photosynthesis?
Answer: Oxygen.
What pigment in leaves helps capture sunlight?
Answer: Chlorophyll.
What happens if the roots are damaged?
Answer: The plant cannot absorb enough water.
Is photosynthesis a physical or chemical process? Why?
Answer: Chemical, because new substances are made (glucose and oxygen).
Which plant structure absorbs water needed for photosynthesis?
Answer: Roots.
Why is oxygen important for living things?
Answer: Animals and humans need oxygen to breathe.
Why are most leaves flat and wide?
Answer: To capture more sunlight.
If leaves are covered in dust or dirt, how might this affect photosynthesis?
Answer: Less sunlight reaches the leaf, reducing food production.
Why are plants called producers?
Answer: They make their own food.
Why is sunlight necessary for photosynthesis?
Answer: It provides energy to make food.
How does glucose help a plant survive?
Answer: It provides energy for growth and repair.
How do stems support photosynthesis?
Answer: They transport water from roots to leaves.
Why might a plant in deep shade grow slowly?
Answer: It receives less sunlight, so it makes less glucose.
Explain why photosynthesis is important for both plants and animals.
Answer: Plants get food; animals get oxygen and food energy.
A plant has water and sunlight but no access to air. Can it make food? Explain.
Answer: No. It needs carbon dioxide from the air.
If a plant cannot produce glucose, what will eventually happen? Explain.
Answer: It will weaken and die because it has no energy source.
Explain how roots, stems, and leaves work together during photosynthesis.
Answer: Roots absorb water, stems transport it, leaves use sunlight and carbon dioxide to make food.
Predict what happens to an ecosystem if plants cannot photosynthesize.
Answer: Food chains collapse because plants are producers.
Defend this claim: “Photosynthesis is one of the most important processes on Earth.”
Answer: It provides food and oxygen for most life on Earth.