Image+Creation+-+Chapter+2+Exercise

= __Chapter 2: Human body systems work independently and together__ =

For each image, read all of the instructions before starting to draw.
 ** Section 2.1 Body Systems **

Image 2.1a
====After reading about the systems of the human body on p.56, go to Slimber.comand draw a very simple diagram of the parts of the body that make up the respiratory system. To help you, look at Figure 2.3, Respiratory System. ====

====After reading p.58, look again at Figure 2.4, which shows how cells make up tissues, which make up organs, which make up organ systems, which make up organisms. Go to Slimber.com and draw an arm. Draw veins in blue and arteries in red.====

= Section 2.2 The Digestive and Excretory Systems =

====//You may have heard on the news or read in a magazine about good and bad fat. Good fat is sometimes called unsaturated fat and comes from fruits, vegetables, and fish. Corn oil, olive oil, and vegetable oil are also examples of unsaturated fats. These fats are liquid at room temperature. Animal fats, such as butter or lard, are saturated fats. These fats are solid at room temperature.*//====

====Go to Slimber.com and draw an unsaturated fat and a saturated fat. One could be in the shape of a puddle, and the other could be in the shape of a brick. Which is which? Read the passage again if you're not sure. Label the fats (saturated and unsaturated).====

//**Small intestine**//
====//Once the liquid chyme leaves the stomach, it empties into the small intestine. This organ is a tube about 6 m long and 2.5 cm in diameter. The first metre of the small intestine is called the duodenum. The second stage of the digestion process is complete once the food particles leave the duodenum.*//====

====Normally, the small intestine is folded and packed up inside the body. Go to Slimber.com and draw the small intestine as if it were one long straight tube. Show the section where the duodenum is.====

= Section 2.3 The Circulatory and Respiratory Systems =

====//Capillaries are a network of tiny blood vessels that act like a highway interchange. Here oxygen, nutrients, and glucose diffuse through the very thin walls of the capillaries into the fluid that surrounds tissue cells (see Figure 2.26). In exchange, carbon dioxide and other waste materials that have diffused out of these cells diffuse into the capillaries.*//====

====Go to Slimber.comand draw a capillary as a tube. Using arrows, draw and label the particles that diffuse out of the capillaries. Draw and label the particles that diffuse into the capillaries. ====

Image 2.3b
====In Figure 2.33, you can see deoxygenated blood coming from the capillaries surrounding the alveolus. Carbon dioxide diffuses into the alveolus, and oxygen diffuses the other way into the capillaries and binds with the red blood cells. The oxygenated blood returns to the heart to be pumped to the rest of the body. This whole process is called gas exchange.====

====After reading p.91, go to Slimber.comand draw your own simple version of Figure 2.33. It must contain an alveolus, a capillary, red blood cells and words or symbols for air, O2 and CO2. Draw arrows to show whether the CO2 molecules are going from the alveolus to the capillary or vice versa. Do the same for CO2.====

To go to the Image Creation exercise for Chapter 1, click here.
CO2