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WorksheetsWhat Causes Disease?
Total questions: 15
Worksheet time: 8mins
Which statement best defines a disease?
A condition that harms normal body or mind
A symptom that only affects the immune system
A disorder caused solely by bacteria and viruses
A temporary feeling of being tired after exercise
A pathogen is most accurately described as which of the following?
A microscopic organism causing communicable disease
A cell part that prevents all infections
A large organism that strengthens body tissues
A nonliving chemical that cures illnesses
Which pathogen type is tiny and nonliving yet takes over healthy cells?
Fungi that cannot make their food
Viruses invading and hijacking cells
Bacteria with no cell nucleus
Protozoa that have a nucleus
A student observes single-celled organisms without a nucleus on a slide. Which pathogen category fits this observation?
Fungi that cannot make food
Protozoa with a true nucleus
Viruses invading healthy cells
Bacteria lacking a cell nucleus
Which statement best defines a disease for a ninth-grade health context?
A feeling that changes mood for a short time
A condition affecting proper body or mind functioning
A natural response that strengthens the immune system
A minor injury that heals within a few days
A lesson on causes of disease lists three focus areas: identifying two main types of disease, recognizing four disease-causing organisms, and describing how germs spread. Which task would best show you can connect these ideas?
Explain how specific germs spread and cause one disease
List the names of four disease-causing organisms only
Define disease without examples or context
Memorize the chapter and recite its headings
A school plans a health poster explaining two categories of diseases. Which statement best distinguishes these categories?
Noncommunicable diseases always spread quickly
Communicable diseases never spread to other people
Noncommunicable diseases spread through casual contact
Communicable diseases can spread between people
A school nurse wants to label a diagram showing disease-causing germs. Which label correctly defines a pathogen in this context?
A harmless microbe found everywhere on surfaces
An extremely small single-celled organism without nucleus
A microscopic organism that causes communicable diseases
A nonliving particle that invades healthy cells
A community health team sees increased cases of athlete’s foot after a season of shared locker rooms. Which type of organism most likely caused these infections, and why?
Protozoa, single-celled with a nucleus
Fungi, absorb nutrients from living hosts
Bacteria, produce their own food from sunlight
Viruses, are fully living independent cells
A student sneezes into their hands and immediately grabs a shared classroom door handle. Using the diagram’s categories, which transmission route best describes how germs could spread to the next person who touches the handle?
Contact through animal or insect vectors
Eating contaminated food or beverages
Indirect contact via contaminated surfaces
Direct contact between two individuals
Which statement best defines a pathogen in health science?
A cell that repairs damaged body tissues
A vitamin that prevents infectious illnesses
A protein that strengthens immune defenses
An organism that causes disease in hosts
Which disease is most commonly caused by a fungus?
Ringworm on the skin
Influenza in winter
Malaria from mosquitoes
Strep throat infection
Which list correctly names four common disease-causing organisms?
Neurons, muscles, bones, glands
Antibodies, vaccines, hormones, enzymes
Proteins, lipids, sugars, acids
Bacteria, viruses, fungi, parasites
A student shares towels after gym and later develops itchy circular skin patches. Which conclusion is most reasonable, and what prevention fits best?
Likely parasitic infection; stop drinking clean water
Likely fungal infection; avoid sharing damp towels
Likely viral infection; take antibiotics immediately
Likely bacterial infection; increase sugar intake
You are planning a community poster on disease prevention. Which message targets reducing pathogen spread most effectively?
Sleep less to keep immunity alert
Eat only high-protein meals each day
Avoid all outdoor exercise activities
Wash hands regularly with soap and water
