Question | Answer |
Name 3 types of plants,nuts,seeds etc you can get Oils from. | Coconuts,Peanuts,Sunflower seeds,sesame seeds,walnuts,soyabeans,olive trees. |
What is the word equation for photosynthesis? | Water+Carbon Dioxide->Glucose+Oxygen. |
What is the symbol equation for photosynthesis? | 6H20+6C02->C6H1206+602. |
What is the symbol equation for Glucose? | C6H12O6. |
What is the two ways of extracting Oils? | Pressing, Steam Distilation. |
How do you know when vegetable oil is unsaturated? | It contains carbon to carbon double bonds. |
What is the test for unsaturated oils? | Bromine water decolourises. |
What does cooking food change? | Aperance, Hardness. |
When food is cooked is it a chemical or phisical change? | Chemical. |
What is a advantage of Boiling food? | It has a lower energy content so it is healthier. |
What is a disadvantage of Boiling food? | It takes a longer trime to cook. |
What is a advantage of Frying food? | It is quick to cook. |
What is a disadvantage of frying food? | It has a high energy content so it is not healthy. |
What do Oil and water not do? | mix together. |
What do oil and water do when they are mix together? | create two seprate layers. |
What is the head of a emulsifier called? | hydrophilic . |
what is the tail of a emulsifier called? | hydrophobic. |
What does Hydrobhobic mean? | hates water loves oil. |
what does hydrophilic mean? | loves water hates oil. |
what does a emulsifier do? | The head of a emulsifier is a positive, so when they are swimming in the water, two positive create a negative so it helps the oli and water to not seprate. |