Understanding Disease Review

What is a disease?

• A condition that improves the normal functioning of cells, tissues, and organs.

• A condition that only affects animals and not humans or plants.

• A disorder of structure or function in a human, animal, or plant, especially one that produces specific signs or symptoms.

• A direct result of physical injury.

How can diseases be classified?

• By the color of the symptoms they produce.

• By the age group they affect.

• By whether they are infectious or non-infectious.

• By the time of day they occur.

What are infectious diseases?

• Diseases that cannot spread from one person to another.

• Diseases that are caused by injuries.

• Diseases that are caused by microorganisms and can spread from one person to another.

• Diseases that only affect plants.

Which of the following is not a symptom of a disease?

• Headache.

• Cough.

• Strength.

• Cold.

What are non-infectious diseases caused by?

• Pathogens

• Nutritional deficiency, gender, lifestyle factors, and age

• Immune system reactions

• Malfunctioning of vital organs

Which of the following is an example of a degenerative disease?

• Asthma

• Alzheimer's

• Cholera

• Hypertension

What is a common characteristic of degenerative diseases?

• Increased bone weakness

• Allergic reactions

• Spread from person to person

• Caused by pathogens

What usually triggers an allergic reaction?

• Vital organ malfunction

• Pathogens like bacteria and viruses

• Foreign substances called allergens

• Nutritional deficiency

Which condition is an example of an allergic reaction?

• Osteoporosis

• Asthma

• Alzheimer's disease

• Cataract

What is a common symptom of asthma?

• Swelling of lymph nodes

• Difficulty in breathing

• Pale skin

• Fever