Image+Creation+-+Chapter+1+Exercise

= __Chapter 1: The cell is the basic unit of life__ =

For each image, read all of the instructions before starting to draw.
= Section 1.1 Observing Living Things =

//The strongest living thing on Earth is the rhinoceros beetle (see Figure 1.2 on the next page).//
====//As beetles go, the rhinoceros beetle is pretty big, but compared to an elephant, it is tiny. However, this amazing beetle can lift 850 times its own weight. An elephant can lift only up to one quarter of its weight. Although an elephant may be able to lift a heavier object, relative to its weight the rhinoceros beetle is the lifting champion. This strength helps the beetle survive on the jungle floor. Since the jungle floor is covered with dead plants, leaves, and other debris, the beetle uses its strength to clear a path.*//====


 * ====Draw an image showing a rhinoceros beetle lifting something 850 times its weight.====


 * ====Draw an image showing an elephant lifting something that is the quarter of its weight.====

//**Living things need energy**// ====//Responding to the environment and carrying out activities necessary for survival require energy. You get your energy from the food you eat. Other living things have different ways of getting energy. Plants, for example, combine carbon dioxide, water, and sunlight to produce sugar or food.*//====

====Go to Slimber.com and draw a diagram that shows carbon dioxide and water in a reaction that forms sugar and oxygen. (Oxygen is produced along with the sugar, even though that wasn't already mentioned in the passage.)====

= Section 1.2 Cells  =

Image 1.2a
Reread the following passage from p.26.

Go to Slimber.com and follow the instructions below to create two images on **one page**.

 * ====Draw a muscle cell containing many mitochondria.====
 * ====Draw a cheek cell. Draw mitochondria inside.====
 * ====Based on the description, should the cheek cell contain more, less, or the same number of mitochondria than the muscle cell?====

//Two cell parts f////ound in plants but not in animals are the cell wall and chloroplasts, which carry out functions animal cells do not require.*//
====Go to Slimber.comand draw a simplified diagram of a plant cell. Include and label the cell wall, the cell membrane and some chloroplasts. To help you, look at Figure 1.21 to see the cell wall and membrane. Chloroplasts are shown in Figure 1.17 and Figure 1.22.====

====//There are many different ways to classify bacteria, but often they are grouped by the shapes of their cells. Figure 1.27 shows the three different shapes of bacteria: cocci (sphere-shaped), bacilli (rod-shaped), spirilla (spiral-shaped). These cells have been coloured so you can see them better.*//====

Go to Slimber.comand draw a diagram of cocci, bacilli and spirilla shapes of bacteria. To help you, look at Figure 1.27.
= Section 1.3 Diffusion, Osmosis, and the Cell Membrane  =

After reading about diffusion on p.41, go to Slimber.comand draw a set of three pictures on **one page,** similar to the set in Figure 1.31.

 * ====In the first picture, show a perfume bottle that has just been sprayed. The scent particles will be close to the bottle.====


 * ====In the second picture, draw the bottle and the particles after a few minutes have passed. The scent particles will have traveled farther away from the bottle.====


 * ====In the third picture, draw the bottle and the particles after a few more minutes have passed. Where do you think you should draw the particles this time?====

Note: If it's too difficult to draw all three pictures on one page, skip the second one. That is, draw only the first and last parts on **one page.**

Image 1.3b
Reread the following passage from p.44.

//**Application of osmosis**//

//The antibiotic drug penicillin uses the process of osmosis to destroy harmful bacteria. Penicillin acts by//
====//preventing the bacteria from producing a substance that strengthens their cell walls. Your body has a higher concentration of water than there is in the bacterial cells. As a result, water flows into the bacteria causing it to swell. With weakened cell walls, the bacteria burst and die.*//====


 * ====Draw a cell of normal size.====


 * ====Draw another cell that has swollen and burst because too much water entered it. If it helps, use arrows and dots to show water particles.====

To go to the Image Creation exercise for Chapter 3, click here.
Read all of the instructions before starting to draw each of the diagrams.