علاج الأمراض والطب العام

Clinical Medicine and Public Health Sample Tasks: Open Doors Undergraduate Track

• Task Format: 33 tasks, including 20 entry-level (0-1 point each), 10 intermediate-level (0-5 points each), and 3 advanced tasks (0-10 points each) requiring constructed responses.

• Evaluation: Correct answers are highlighted, and evaluation criteria/standard answers are provided for advanced tasks.

Pharmacology

• Task 1 (Entry Level): Identify the element with two unpaired electrons in its ground state from a given list (Cl, Ba, Si, P). Answer: Si

• Task 2 (Entry Level): Select the series containing only acidic oxides (CO2, SiO2, N2O, SO3; V2O5, CrO3, TeO3, Mn2O7; P2O3, Al2O3, N2O5, SO2; CaO, CO, P2O5, NO2). Answer: V2O5, CrO3, TeO3, Mn2O7

• Task 3 (Entry Level): Determine the number of structural isomers for a substance with the molecular formula C3H8O. Answer: 3

• Task 4 (Entry Level): Identify the class of compounds to which a given structure belongs. Answer: glycerophospholipids

Dentistry, Oral Surgery & Medicine

• Task 6 (Entry Level): Calculate the probability of gametes with both recessive alleles in a diheterozygous organism if the non-allelic genes are not linked. Answer: 25%

• Task 5 (Entry Level): Which vegetative organ of a plant is mentioned? Answer: root

Public Health

• Task 16 (Entry Level): Identify a viral disease from a list of options. Answer: Ebola fever

• Task 17 (Entry Level): Identify the phylum with the highest number of species in the Animal Kingdom. Answer: Arthropoda

• Task 18 (Entry Level): Determine the function of rods in the retina, related to vision. Answer: black-and-white vision and brightness

• Task 19 (Entry Level): Identify the ions that participate in a chemical reaction when AgNO3 is added to KCl. Answer: Ag⁺ and Cl⁻

Additional Tasks (Intermediate & High Level)

• Task 20 (Entry Level): Determine which oxides from a list react with water. Answer: P2O5 and CaO
• Task 21 (Intermediate Level): Sequence of plant evolution. Answer: Algae, Mosses, Ferns, Gymnospermae, Flowering plants
• Task 22 (Intermediate Level): Carbohydrates broken down by α-amylase. Answer: Glycogen, Starch
• Task 23 (Intermediate Level): Organisms with cell walls. Answer: Ferns, (and other organisms)
• Task 24 (Intermediate Level): Correct statements about immunity. Answer: (innate and acquired immunity; antigen-presenting cells; cellular and humoral components)
• Task 25 (Intermediate Level): Volume of sulfuric acid solution needed. Answer: 33.29 ml
• Task 26 (Intermediate Level): Components of sperm cells. Answer: (different sex chromosomes; identical sets of autosomes; homologous chromosomes)
• Task 27 (Intermediate Level): Specific hybridization type in given compound. Answer: Sp²
• Task 28 (Intermediate Level): Monosaccharides not found in glycogen. Answer: (Correct answers would be a list of monosaccharides NOT found in glycogen)
• Task 29 (Intermediate Level): Characteristics of the phylum Chordata. Answer:(Triploblasty; Secondary body cavity; Deuterostomia; Bilateral symmetry)
• Task 30 (Intermediate Level): Number of carbon atoms in the alkene. Answer:10
• Task 31 (High Level): Determine inheritance pattern and probability for a genetic trait. Answers vary will depend on the problem specifics
• Task 32 (High Level): Characteristics of parasitic worms. Answers vary will depend on the problem specifics
• Task 33 (High Level): Explain the effect of temperature on enzyme activity. Answers vary will depend on the problem specifics