Monday, 26 November 2012

Group assignments

Today we will be looking at how different organ systems in the body work. In your groups, you need to produce a powerpoint slideshow that you will use to talk about your system in class on Friday.
To prepare, complete the following steps:
  • Make sure you know what system you are talking about, and what the major organs in it are.
  • Describe what your system does, and why this is important for the body.
  • Explain a problem that can occur if it isn't working properly. To find information, try searching for something like '        system disease'.
  • Finally, make sure you have some pictures or animations that show what your system does and how it does it.
Make sure you know what people in your group will say/do during your presentation. Making scripts that people can read would be a good idea. We will be judging a winner and there will be a prize, so make sure you're organised!

Wednesday, 21 November 2012

Respiration

Today we're going to look at respiration. Answe rthe following in your books:

  1. What is cellular respiration?
  2. For the link above, how is cellular respiration different to breathing respiration?
  3. Which 3 tubes does air travel through to reach the alveoli?
  4. Use the animation to name the muscles between the ribs:
  5. What are the tiny blood vessels around the alveoli in the lungs called? (we've used this word before).
  6. How are athletes dietary needs different to other peoples?
  7. Why would many athletes need different amounts of carbohydrates to less active people?
  8. Give one way that cystic fibrosis can affect the lungs:
  9. Where do the right and left sides of the heart pump blood to?
  10. Which part of the blood carries oxygen? Give one other feature that helps these cells do their job:
  11. Why are red blood cells shaped the way they are? Describe the shape and how it helps them:
  12. Try this activity. What parts of the blood protect against infection?

Thursday, 15 November 2012

Organs

Today we're going to keep looking at the organs in the body. Complete the following:
  1. What organs does food travel through on the way down the digestive system?
  2. Watch this animation. What is the most important muscle in the body? What does it do?
  3. Complete this activity. Name one organ that you have two of:
  4. What two things does your body need to produce energy to run?
  5. Using the link above, name the reaction and write the word equation for it (        +         =........ )
  6. Do plants have cellular respiration as well?
  7. How are capillaries, veins and arteries similar? Write down where each type of vessel takes the blood.
  8. Watch the video at the bottom of the page (press 's' for subtitles). Why is there cartilage in your lungs?
  9. What word starts with 'd' to describe how oxygen moves into the blood and carbon dioxide moves out?
  10. If you have done your HOMEWORK already, give it to Mr. Cole with your name on it now. If you haven't yet, use this link to write down the name of an enzyme and what it does.
  11. Try to complete this activity. What comes after the bronchus?
  12. Once you've done everything else, try this challenge.
Extension - Read this article about asthma. What happens in the lungs that causes the person to become short of breath? What things can cause it and what are the symptoms?