Understanding Human Health, Immunity, and Nutrition

Complete the Statements

• 1. The body builds immunity through memory cells and vaccination.
• 2. Challenges to the immune system include allergies, cancer, immune deficiency, and autoimmune disease.
• 3. Causes of noninfectious diseases include hereditary and environmental factors.
• 4. Causes of infectious diseases include viruses, bacteria, fungi, and parasites.
• 5. Infectious diseases are transmitted via infected objects, air, animals, and contaminated food.
• 6. The difference between infectious and noninfectious diseases is that infectious diseases can be transmitted to other people.

Label the Type of Pathogen

• 1. This microorganism is caused by the transfer of body fluids from an infected person, and there is no known cure: Virus
• 2. They decompose organisms into material that can be used: Fungi
• 3. Tuberculosis is caused by this microorganism: Bacteria
• 4. Organisms that live and feed on other organisms: Parasite
• 5. Some can be spread through air or touch: Virus
• 6. The most common type is a one-celled organism called Protista: Parasite
• 7. Skin infections are the most common diseases: Fungi
• 8. Worms are an example of this type of pathogen: Parasite
• 9. Some are beneficial, others can be harmful: Bacteria
• 10. They insert their genetic material to create new microorganisms: Virus

Match the Terms

• 1. Nutrition: Study of food and ways the body uses it.
• 2. Nutrient: Substance in food that provides energy.
• 3. Diet: Amount of food that a person eats.
• 4. Overweight: Heavy for one’s height.
• 5. Obesity: Significant amount of excess body fat.
• 6. Eating disorder: Disease of unhealthy concern for body weight or shape.
• 7. Physical fitness: Ability to perform without being overly tired.

Label Correctly

• 1. There are two types; they relate to quick or long-lasting energy: Carbohydrates
• 2. It helps your body carry out specific functions: Vitamins/Minerals
• 3. Your body is made of it and needs it for life processes: Water
• 4. They are used to build, regulate, and repair your body: Proteins
• 5. They are used as sources of energy: Fats