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HOSA
HOSA MEDICAL ASSISTING EXAMS QS &
AS|GRADE A| 100% CORRECT (VERIFIED
ANSWERS) (2025/ 2026 )
Bacilli - ANS ✓•rod-shaped bacteria (single, pairs or in chains) contain flagella
•form spores
•hard to kill
Spirilla - ANS ✓spiral or corkscrew (syphilis and cholera)
Protozoa - ANS ✓one-celled animal-like organisms often found in decayed
materials (may contain flagella
Fungi - ANS ✓simple, plant like organisms that live on dead organic matter
(yeast and mold)
Rickettsia - ANS ✓cannot live outside the cells of another living organism.
Found in fleas, lice, ticks, and mites. (typhus fever and Rocky mountain spotted
fever)
HOSA Medical
, 2
HOSA
Viruses - ANS ✓smallest microorganisms visible using microscope.
•spread from human to human by blood or other secretions
•difficult to kill bc they are resistant to many disinfectants and not affective by
antibiotics
•common cold, measles, mumps, chicken pox, herpes, warts, flu, and polio
Helminths - ANS ✓•multicellular parasitic organisms (worms or flukes)
• transmitted to humans when we ingest the eggs from contaminated food or get
but bitten by infected insects
Hookworms: - ANS ✓attach to small intestine and infect the heart and lungs
Ascariasis - ANS ✓live in small intestine and can cause an obstruction
Trichinella spiralis - ANS ✓causes trichinosis and is contracted by eating raw
or poorly cooked pork
Enterobiasis - ANS ✓pinworm
Taenia solium (pork tapeworm) - ANS ✓contracted by eating raw or poorly
cooked pork
HOSA Medical
HOSA
HOSA MEDICAL ASSISTING EXAMS QS &
AS|GRADE A| 100% CORRECT (VERIFIED
ANSWERS) (2025/ 2026 )
Bacilli - ANS ✓•rod-shaped bacteria (single, pairs or in chains) contain flagella
•form spores
•hard to kill
Spirilla - ANS ✓spiral or corkscrew (syphilis and cholera)
Protozoa - ANS ✓one-celled animal-like organisms often found in decayed
materials (may contain flagella
Fungi - ANS ✓simple, plant like organisms that live on dead organic matter
(yeast and mold)
Rickettsia - ANS ✓cannot live outside the cells of another living organism.
Found in fleas, lice, ticks, and mites. (typhus fever and Rocky mountain spotted
fever)
HOSA Medical
, 2
HOSA
Viruses - ANS ✓smallest microorganisms visible using microscope.
•spread from human to human by blood or other secretions
•difficult to kill bc they are resistant to many disinfectants and not affective by
antibiotics
•common cold, measles, mumps, chicken pox, herpes, warts, flu, and polio
Helminths - ANS ✓•multicellular parasitic organisms (worms or flukes)
• transmitted to humans when we ingest the eggs from contaminated food or get
but bitten by infected insects
Hookworms: - ANS ✓attach to small intestine and infect the heart and lungs
Ascariasis - ANS ✓live in small intestine and can cause an obstruction
Trichinella spiralis - ANS ✓causes trichinosis and is contracted by eating raw
or poorly cooked pork
Enterobiasis - ANS ✓pinworm
Taenia solium (pork tapeworm) - ANS ✓contracted by eating raw or poorly
cooked pork
HOSA Medical
