Answer True or False. 1. Blood in the arteries is rich in oxygen. 2. Capillaries are the largest vessels. 3. Veins are smaller than arteries. 4. The push of blood is called blood pressure. 5. High blood pressure can be dangerous to your health. Complete the sentences. Use the words below.

Answer True or False. 1. Two different foods can contain the same nutrient. 2. Nutrients are the part of food your body has to get rid of. 3. Your body needs proteins to grow and repair body tissue. 4. Fats do not supply energy to your body. 5. Nuts and oils have fats.

3. Draw a relaxed and contracted sarcomere (see Textbook, p. 286, Fig, 11,6):

Draw a relaxed and contracted sarcomere (see Textbook, p. 286, Fig. 11.6)

A. Fill in the missing word. 1. The raw materials your body needs are called (cells, nutrients) 2. Both cheeses and meats contain . (carbohydrate, protein) 3. Sugar is a kind of 4. For energy, your body uses (bones, carbohydrates) 5. Proteins are found in milk and

6. Cells produce energy from (a) muscles. (b) oxygen and food. (c) carbon dioxide.