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Photosynthesis
| Question | Answer |
|---|---|
| What is Photosynthesis? | Photosynthesis is the way plants make their own food using light |
| Why is Photosynthesis so important? | When plants photosynthesise they release oxygen which is essential for many living organisms When plants photosynthesise they take in carbon dioxide from the air which prevents the air from reaching a poisonous level |
| What is needed for plants to carry out photosynthesis? | Sunlight Water Carbon dioxide Chlorophyll (green pigment found in plants) |
| What is the word equation for photosynthesis | Chlorophyll Carbon Dioxide+Water-------------------> Oxygen+Glucose Sunlight |
| How do Plants Photosynthesise? | Plants take in carbon dioxide from the air through tiny pores on their leaves called stomata Plants take in water from the soil through their roots Sunlight is absorbed by the chloroplasts in the cells of the leaves of the plant |
| How do plants photosynthesise? pt2 | The green pigment called chlorophyll, in the chloroplasts, allows the carbon dioxide and water to combine to form glucose The energy for the reaction comes from the sun Oxygen is released and is given off as a waste product |
| Is Photosynthesis A Chemical Process and Why | Photosynthesis is a chemical process because the reactants water and carbon dioxide react together to form the new products oxygen and glucose |
| Is Photosynthesis a Biological Process | Photosynthesis is a biological process because it happens in living cells Photosynthesis takes place in the chloroplasts of cells where enzymes that are essential for this process are present |
| What is the Carbon Cycle | The constant recycling of carbon atoms is called the carbon cycle |
| What is the Importance of photosynthesis in the carbon cycle | Photosynthesis is how carbon in the form of carbon dioxide gets fixed (caught up) in compounds such as food and fuel Photosynthesis is vital for keeping the carbon cycle going and therefore keeping life on Earth going too |
| What Factors affect Photosynthesis | The factors affecting photosynthesis are: Carbon dioxide Temperature Light |
| How Does Carbon Dioxide Affect Photosynthesis | If there is a decrease in carbon dioxide the rate of photosynthesis will also decrease as there is less gas taking part in the photosynthesis reactions If there is a increase in carbon dioxide the rate of photosynthesis will also increase |
| How Does Temperature Affect Photosynthesis | All biological processes are controlled by enzymes If the temperature is too low enzyme activity is slow which means the rate of photosynthesis will be slow If the temperature is too high the enzymes will be destroyed so the reaction will stop |
| How Does Light Affect Photosynthesis | If the light intensity is low the rate of photosynthesis will be low due to lack of energy If the light intensity is high the rate of photosynthesis will be high as there is more energy |
Created by:
JMahango
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