B2.4 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
Where does aerobic respiration take place? | The mitochondria which is the site of cellular respiration |
What is the word equation for aerobic respiration? | Glucose + Oxygen = Carbon Dioxide + Water (+Energy) |
Name 4 things that the energy released in respiration may be used for | To build larger molecules from smaller ones, To enable muscle contraction in animals, To maintain a constant body temperature in colder surroundings (in mammals and birds), To build sugars, nitrates and other nutrients into amino acids then proteins. |
Name two ways that you can tell that aerobic respiration is occuring | Use limewater to test for Carbon Dioxide, Check for a rise in temperature (using a thermos flask) |
When you exercise your muscles need more energy so they can contract, so what two things must happen? | The rate at which oxygen and glucose reach the muscle cells for aerobic respiration must increase, More waste CO2 is produced therefore it must be removed more quickly |
When do your muscles start to respire anaerobically? | When they cannot get enough oxygen for aerobic respiration |
Why is lactic acid produced in anaerobic respiration? | Because the glucose is not completely broken down |
What does lactic acid cause? | Muscle fatigue |
How is lactic acid removed | By blood flowing through the muscles |
What is the 'oxygen debt'? | When you finish exercising the left over lactic acid must be completely broken down. You still need to take in a lot of oxygen to do this. The extra oxygen needed is known as the oxygen debt |
What happens to the lactic acid eventually? | The oxygen oxidises the it into CO2 and water (the products of aerobic respiration.) |
Created by:
bhbryden
Popular Biology sets