2661837
Description
Flashcards by AishaPatel, updated more than 1 year ago
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Created by AishaPatel
over 10 years ago
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| Question | Answer |
| What are enzymes made from? | Protein (long chains of amino acids) |
| How many reactions can enzymes catalyse? | It can only catalyse one reaction |
| Define a catalyst | A catalyst is a substance which increases the speed of a reaction, without being changed or used up in the reaction |
| What do starch, proteins and fats have in common? | They are big molecules therefore they are too big too pass through the walls of the digestive system |
| What does bile do? | Bile neutralises stomach acid and emulsifies fats (breaks down into tiny droplets to form a bigger surface area for lipases to work on and makes digestion happen faster) |
| Which enzyme converts starch into sugars? | Amylase |
| Where is bile produced? | In the liver |
| Where bile stored? | In the gall bladder |
| Where is amylase produced? | The salivary glands, the pancreas and the small intestine |
| Where is protease produced? | The stomach (pepsin), the small intestine and the pancreas |
| What does lipase convert? | Lipids into glycerol and fatty acid |
| Define respiration | The process of releasing energy from glucose which goes into every cell |
| Which process of respiration produces lactic acid due to the incomplete breakdown of glucose? | Anaerobic respiration |
| Give the word equation of aerobic respiration | Glucose+Oxygen----->Carbon Dioxide+Water+Energy |
| When anaerobic respiration used? | When there's not enough oxygen |
| What anaerobic respiration lead to? | Oxygen debt |
| Which type of respiration occurs in plants and animals? | Aerobic respiration |
| Which is the most efficient way to release energy from glucose? | Aerobic Respiration |
| Where does most of the reactions in aerobic respiration happen? | Inside the mitochondria |
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