Questions and Answers
If a thin lens with an index of 1.5 has a dioptric power of +4.00 in air, what is its power if placed in water?
Alpha helices and beta sheets are considered which level of protein structure?
An amphipathic molecule will react in what manner when exposed to water?
Coenzyme Q, vitamins A, D, E and K, and cholesterol are all derived from which of the following lipids?
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Dietary triglycerides are metabolized primarily by which organ of the body?
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Fatty acid synthesis is activated during which of the following situations?
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Glycolysis occurs at which location within a eukaryotic cell?
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A 10-year old child presents in your office with unilateral follicular conjunctivitis along with ipsilateral adenopathy. You correctly diagnose oculoglandular syndrome. Because it is the most common etiology, which of the following causes are you MOST likely to suspect?
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A 24-year-old female patient reports that her eyes have been red for a few days. Biomicroscopy reveals bilateral diffuse superficial punctate keratitis (SPK) that stains with sodium fluorescein. Based ONLY upon the corneal staining pattern, what is the MOST likely origin of her condition?
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A 32-year old male is seen in your office and has severe eye pain and difficulty opening his right eye. Biomicroscopy reveals an epithelial defect that stains with sodium fluorescein. What is the MOST appropriate diagnosis?
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A 42-year-old construction worker presents with pain and photophobia after getting plaster in his eye. What type of chemical trauma did the worker experience, and what would be your first therapeutic intervention?
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A newborn presenting with symptoms of ophthalmia neonatorum 3 days after birth is MOST likely infected with which of the following organisms?
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Study Notes
Optical Physics and Biology
- A thin lens with an index of 1.5 has a dioptric power of +4.00 in air; in water, its power is +1.36 diopters.
Protein Structure
- Alpha helices and beta sheets are classified as secondary protein structures.
Molecular Behavior
- Amphipathic molecules form micelles when exposed to water, demonstrating their unique structural properties.
Biochemical Compounds
- Coenzyme Q, vitamins A, D, E, K, and cholesterol derive from isoprenes and terpenes.
Digestive Physiology
- Dietary triglycerides are primarily metabolized in the intestine.
Metabolic Regulation
- Fatty acid synthesis is activated by increased levels of citrate and insulin, alongside decreased levels of glucagon.
Cellular Processes
- Glycolysis occurs in the cytosol of eukaryotic cells.
Ocular Conditions
- A child with unilateral follicular conjunctivitis and adenopathy is most likely suffering from cat-scratch disease.
Corneal Disorders
- Bilateral diffuse superficial punctate keratitis (SPK) with no mucopurulent discharge indicates a viral origin.
Eye Trauma Diagnosis
- A recurrent corneal abrasion is diagnosed in a patient with a history of mild corneal abrasion and a current epithelial defect.
Chemical Eye Injury
- An alkali burn was experienced by a construction worker, requiring an immediate lavage of the eye with balanced saline solution for 30 minutes.
Ophthalmia Neonatorum
- A newborn with symptoms 3 days after birth is most likely infected with Neisseria gonorrhoeae.
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Description
Test your knowledge with these practice questions designed for the NBEO exam. This quiz covers important topics in optics and protein structures, preparing you for your future in the optometry field. Challenge yourself and verify your understanding of key concepts.
