Science photosynthesis quiz
Terms in this set (9)
What is photosynthesis?
The process by which plants and some other organisms capture the suns energy and use it to make food.
What happens during photosynthesis?
Some organisms convert carbon dioxide and water into oxygen and sugars.
What are the 2 stages of photosynthesis?
1 Chloroplasts in plant cells capture the suns energy
2 The light energy is used to produce sugars and oxygen
what part of a plant captures light? Why?
The leaves capture the light because they contain the chlorophyll which absorb the light.
What is chlorophyll and what does it do?
A green pigment in the chloroplast that capture the suns energy to power the second step of photosynthesis.
what does a plant need to make sugar? How do these things get into the plant?
It needs carbon dioxide which gets in through the stomata and water which gets in through the roots.
What is the chemical equation for photosynthesis?
6 CO2 + 6 H2O light energy C6H12O6 + 6O2
carbon dioxide water sugar oxygen
What happens to the sugar the plant makes?
Plant cells use some of the sugars for food. The cells break down the sugar molecules to release the energy they contain. This energy is then used to carry out the plants functions.
Where do all living things get their energy?
All living things get their energy directly or in directly from the sun.