WorksheetsUnit 7 Review Exam: Infectious Diseases
Total questions: 35
Worksheet time: 18mins
Several students in a classroom are sneezing, and tiny droplets can be seen in the air when they cough. What makes illnesses in this situation able to spread between people?
They transfer through shared organs
They move from person to person through droplets released into the air
They only infect lungs
They cannot be limited by hygiene behaviors
A health department is working to cut down infections caused by harmful microorganisms. What is the main target of their efforts?
Booster shots
Red blood cells
Disease-causing bacteria
Vitamins
A person has been exposed to a pathogen but doesn’t feel sick yet, although the germ is multiplying inside the body. Which stage is this?
Recovery
Height of illness
Incubation period
Onset
A town is dealing with a fast-spreading infectious disease. Which combination of factors would most likely be responsible?
Unsafe drinking water, physical contact, and droplets in the air
Genetics and low fitness levels
Strong community immunity and clean utilities
Poor nutrition and messy rooms
While playing baseball, a student scrapes their hand and touches dirt. What immediate protection does the body rely on to block pathogens?
Specialized proteins
The skin and mucous barriers
Antibodies
Immune system cells
A patient shows fever, congestion, and a cough. Which symptom is directly tied to the respiratory system?
Skin rash
Sore throat
Fever
Joint soreness
After repeated practices in sweaty socks, a teen develops peeling, itchy skin between their toes. Which fungal infection is most likely the cause?
Athlete’s foot
A staph infection
Pink eye
Tetanus
A teen with mononucleosis complains of extreme tiredness lasting for weeks. Why does this happen?
It causes swelling in joints
It puts major stress on the immune system, draining energy
It interferes with eyesight
It leads to full-body rashes
Why is COVID-19 considered an emerging infectious disease?
It cannot be prevented in any way
It came from a newly identified virus that spread globally
It has been widespread for thousands of years
It only affects teens
A prevention campaign for HIV is being developed. Which transmission route should the program focus on?
Contact with infected blood or body fluids
Eating unsafe food
Mosquito bites
Breathing contaminated air
A doctor diagnoses a patient with a bacterial STI. Which one fits this description?
Chlamydia
HPV
Herpes
HIV
A woman has had untreated chlamydia for months. What serious condition might develop as a result?
Pelvic inflammatory disease
Bone loss
Painful blisters on hands
Increased stroke risk
A person finds a painless sore on their skin after infection. This is typically an early sign of which STI?
Trichomoniasis
Syphilis
Gonorrhea
Chlamydia
Many people with trichomoniasis don’t know they have it. Why?
Symptoms are often mild or not noticeable at all
It goes away on its own without treatment
No medical test can detect it
Treatment is lifelong
Which STI can be prevented through vaccination and helps lower the risk of certain cancers?
Chlamydia
HPV
Gonorrhea
Syphilis
Which behavior is the most reliable way to prevent sexually transmitted infections (STIs)?
Taking birth control pills daily
Using dental dams weekly
Abstinence from sexual activity
Consistent condom use during sex
Where should a teen go to get screened for STIs?
Online influencer advice page
Health clinic or hospital
Convenience store pharmacy counter
General shopping website
How do condoms help reduce the transmission of STIs?
They block pathogens with a barrier
They guarantee zero transmission
They provide permanent immunity
They destroy all germs instantly
Which vaccine helps prevent a sexually transmitted virus linked to cervical cancer?
Hepatitis B vaccine for liver disease
Tetanus vaccine for deep wounds
Influenza vaccine for seasonal flu
HPV vaccine for human papillomavirus
Researchers assessing pandemic risk focus most on which factor?
Ability to spread widely and rapidly
Area’s fitness program availability
Genetic predisposition of locals
Single small outbreak with isolation
Which condition is an example of a noncommunicable disease?
Seasonal influenza infection
Tuberculosis bacterial illness
Type 2 diabetes metabolic disorder
Hepatitis from viral exposure
Which habit best lowers the risk of developing type 2 diabetes?
Drinking more sugary beverages
Regular physical activity most days
Avoiding all recommended vaccines
Sleeping less to work extra hours
Alzheimer’s disease affects memory primarily because of what change?
Boosts in overall intelligence
Brain tissue grows too quickly
Loss of oxygen to the brain
Gradual destruction of brain cells
During allergy season, itchy eyes and sneezing are caused by what response?
Breathing rate sped up intentionally
Strong reaction to harmless substance
Blood pressure forced to rise
Building long-term immunity fast
What is a key difference between type 1 and type 2 diabetes?
Type 1 is lifestyle-caused
Type 1 can be prevented easily
Type 1 affects only older adults
Type 1 is autoimmune; type 2 lifestyle
What is the main role of the heart and blood vessels in the body?
Regulate multiple hormone levels
Deliver nutrition only to muscles
Carry oxygen and nutrients widely
Fight infections throughout body
Arteriosclerosis means what change in the arteries?
Joints become swollen and painful
Blood pressure suddenly spikes
Arteries stiffen, heart risk rises
Airways tighten, breathing hard
Uncontrolled hypertension can lead to which serious outcome?
Organ damage from high pressure
Heart attack from blocked flow
Stroke from vessel damage
All of these complications
Why might ankle swelling occur in heart failure?
Heart pumps excessively strong
Heart too weak, fluid accumulates
Body makes extra cholesterol
Lungs fill completely with mucus
Cancer prevention aims to stop which early process?
Spread of common viral infections
Hardening and stiffening muscles
Rapid growth of abnormal cells
Healthy division of normal cells
What distinguishes a benign tumor found during screening?
It spreads extremely quickly
It forms only inside the heart
It does not invade nearby tissues
It is triggered solely by viruses
A smoker is warned about their high risk of lung cancer. What makes smoking so dangerous?
It exposes the lungs to carcinogens that damage cells
It forces people to exercise less
It increases sugar cravings
It leads to dehydration
Chronic stress can worsen which noncommunicable disease?
Diabetes
High blood pressure
Asthma
Alzheimer’s
A teen wants to lower their risk of heart disease and type 2 diabetes. Which approach is most effective?
More screen time and processed snacks
Relying on genetic tests only
Healthy diet, consistent physical activity, stress control
Avoiding vaccines and doctor visits
A student reads a post claiming a supplement prevents every noncommunicable disease. What is the best way to check if this is trustworthy?
See if a celebrity posted it
Assume all online health claims are false
Look for evidence from scientific research and credible health organizations
Count the number of likes
