- In many leaves, as fast as sugar is produced / produces it is turned into starch.
- Carbon and oxygen can be supplied / can supply by carbon dioxide (CO2) from the air.
- Does carbon dioxide need / Is carbon dioxide needed for photosynthesis?
- As the light intensity increases / is increased, the rate of photosynthesis increases.
- Carbon dioxide, water, and light are needed / need for starch production in a leaf.
- The glucose molecules produced by photosynthesis are quickly built up / quickly build up into starch molecules.