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Photosynthesis
Junior Cert Science
| Question | Answer |
|---|---|
| What is the name of the process by which plants make their food | Photosynthesis |
| What do you call the green chemical in plants | Chlorophyll |
| What do you call the structure in the cell in which chlorophyll in present | Chloroplast |
| What do you call the tiny openings present on the leafs surface | Stomata |
| What passes through the openings in the leaf | Air and water |
| What gas is needed for photosynthesis to take place | Carbon dioxide |
| What gas is made in photosynthesis | Oxygen |
| Along with the gas, what else is needed for photosynthesis to take place | Water and sunlight |
| What is made in photosynthesis | Glucose and Oxygen |
| What is the name of the cells that carry food (glucose) in plants | Phloem cells |
| What is the name of the cells that carry water in plants | Xylem cells |
| What is glucose converted to in plants | Starch |
| When testing a leaf for starch why does the leaf have to be boiled for 1 minute at the start | To kill it |
| When testing a leaf for starch why is it put in methylated spirits | To remove chlorophyll |
| When testing a leaf for starch why is it put back into the boiling water | To soften it |
| What colour is the leaf before adding iodine | White |
| What colour is the leaf after adding iodine | Blue/Black |
| What is the word equation for photosynthesis | carbon dioxide +water + light -> glucose + oxygen |