Answers (Grade A+)
Streptococcus pneumoniae -
correct answer ✅Lancet shaped, diplocci
A-hemolytic
Cause meningitis, sinusitis, otitis media, and pneumonia in children.
Alpha Toxin is made by -
correct answer ✅Clostridium perfringens, S. Aureus,
Pseudomonas aeriginosa
H. Pylori is best eliminated via -
correct answer ✅Triple therapy (clarithromycin, PPI, and
amox/metronidazole)
H. pylori can cause -
correct answer ✅Ulcers, adenocarcinoma, and MALT lymphoma
How does H. pylori cause ulcers? -
correct answer ✅Even though it INCREASES pH, ulcers are formed
when acid reaches sites of inflammation
,ADAT Biomedical Exam Questions &
Answers (Grade A+)
Numerous aphthous ulcers in the buccal and labial mucosa may
raise concerns for what disease? -
correct answer ✅Crohn's Disease, Vitamin B12 deficiency
What is Crohn's Disease? -
correct answer ✅Chronic infection of the terminal ileum and
colon, often seen with aphthous ulcers, polyarthritis, pyoderma
gangrenosum, uveitis, and nephrolithiasis.
Na+ channelopathy -
correct answer ✅Loss of function: pain insensitivity
Gain of function: peripheral extra pain disorder
Long QT syndrome: cardiac arrhythmia
K+ channelopathy -
correct answer ✅Long QT syndrome, seizures, diabetes
Ca2+ channelopathy -
correct answer ✅self-biting behavior, neuropathic pain, epilepsy
Cl- channelopathy -
correct answer ✅cystic fibrosis, myotonia, epilepsy, hyperekplexia,
,ADAT Biomedical Exam Questions &
Answers (Grade A+)
lyosomal storage disease, deafness, renal salt loss, kidney stones
and osteopetrosis
What cell is most directly responsible for producing the smooth
muscle and vascular effects of anaphylaxis? -
correct answer ✅Mast cells: degranulation make vasculature more
permeable, releasing fluids into surrounding tissues causing edema
What does IgE do? -
correct answer ✅Parasite defense, indirectly mediates
hypersensitivity by way of inflammatory mediators
What do Basophils do? -
correct answer ✅Acute and chronic allergies, mediate various
inflammatory reactions during the immune response
Temporal arteritis -
correct answer ✅occlusion of branches of the carotid artery.
Unilateral symptoms of jaw claudication, headache, and worsening
vision.
, ADAT Biomedical Exam Questions &
Answers (Grade A+)
Thyroglossal cyst -
correct answer ✅remnant of the thyroglossal duct, 2-3cm mass
near midline of neck. Can be found close to the hyoid bone and
base of the tongue.
In biofilms bacteria communicate via -
correct answer ✅Chemically, will often only produce toxins when
biofilm is large enough
What does catalase do in pathogenic bacteria? -
correct answer ✅Dismantles hydrogen peroxide to evade host
immunity
What bacteria can cause root-surface caries without coronal caries?
-
correct answer ✅A. israelii
sulfur granules in colonies, and bumpy oral/facial abcesses
Which cells produce interleukin 1? -
correct answer ✅Macrophages
stimulates activities of T lymphocytes, B lymphocytes, and
macrophages, and stimulates IL-2 secretion