Podcast
Questions and Answers
Based on the information, what can be inferred about the nature of mathematics before the Greek civilization?
Based on the information, what can be inferred about the nature of mathematics before the Greek civilization?
- Symbols were not used to represent numbers or mathematical concepts.
- Its evolution was extremely fast.
- It was characterized by abstraction and generality.
- Its concepts were communicated in a methodical and structured manner.
- It was primarily focused on specific, practical applications rather than theoretical understanding. (correct)
Which of the following sentences uses the passive voice correctly?
Which of the following sentences uses the passive voice correctly?
- Plato associates solid forms to the four elements in one of his works.
- Virgil sung the deeds of Aeneas. (correct)
- Julius Caesar detailed his military campaign to conquer Gaul in the Gallic Wars.
- Homer sings the deeds of the Pelide Achilles in the Iliad.
- Many students read Greek tragedies in high school.
Given the results of the test, if a passing grade is anything higher than 5, approximately what percentage of candidates passed?
Given the results of the test, if a passing grade is anything higher than 5, approximately what percentage of candidates passed?
- 25% (correct)
- 50%
- 20%
- 24%
- 30%
Shelly is participating in a Latin contest with 1500 participants. If 12% of participants will receive a prize, and the ratio of silver-plated pens to gold-plated pens awarded is 2:1, what is the likelihood that Shelly will be awarded a gold-plated pen?
Shelly is participating in a Latin contest with 1500 participants. If 12% of participants will receive a prize, and the ratio of silver-plated pens to gold-plated pens awarded is 2:1, what is the likelihood that Shelly will be awarded a gold-plated pen?
What single discount is equivalent to applying successive discounts of 10% and 20%?
What single discount is equivalent to applying successive discounts of 10% and 20%?
Stacie uses 343 wooden blocks to construct a cube and decides to paint it. How many of the blocks have at least one side painted green?
Stacie uses 343 wooden blocks to construct a cube and decides to paint it. How many of the blocks have at least one side painted green?
Given the statement, 'When he takes the train, Marco always arrives at work on time,' which conclusion can be logically drawn?
Given the statement, 'When he takes the train, Marco always arrives at work on time,' which conclusion can be logically drawn?
Considering the reaction $4 FeS_2 + 11 O_2 \rightarrow 2 Fe_2O_3 + 8 SO_2$, which statement correctly relates the reactants and products?
Considering the reaction $4 FeS_2 + 11 O_2 \rightarrow 2 Fe_2O_3 + 8 SO_2$, which statement correctly relates the reactants and products?
How much water must be added to 15 mL of a 0.25 M $H_2SO_4$ solution to reduce the concentration to 0.05 M?
How much water must be added to 15 mL of a 0.25 M $H_2SO_4$ solution to reduce the concentration to 0.05 M?
A gas is held within a rigid cylinder at -3 °C, exhibiting a pressure of 9 atm. If the gas temperature increases to 27 °C, what would be the new pressure?
A gas is held within a rigid cylinder at -3 °C, exhibiting a pressure of 9 atm. If the gas temperature increases to 27 °C, what would be the new pressure?
Flashcards
What is a Hydrogen Bond?
What is a Hydrogen Bond?
Hydrogen bond is a bond between a hydrogen atom and another strongly electronegative atom.
Mitochondrial Process
Mitochondrial Process
Cellular respiration occurs within mitochondria.
Glucose Classification
Glucose Classification
Glucose is a hexose, meaning it is a monosaccharide with six carbon atoms.
Sugar in RNA
Sugar in RNA
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Carrier Proteins Function
Carrier Proteins Function
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Cell's Energy Currency
Cell's Energy Currency
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ATP Hydrolysis
ATP Hydrolysis
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Translation in protein synthesis
Translation in protein synthesis
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Definition of allele
Definition of allele
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What are Mutations?
What are Mutations?
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Study Notes
- Call for applications for admission to national restricted access single-cycle degree programs in medicine and surgery and in dentistry and dental prosthodontics, academic year 2024/2025
Reading Skills and Knowledge Acquired During Studies
- Virginia Wolf is the author of the novel To the Lighthouse
- Ancient societies used symbols to represent numbers and mathematical solutions
- Greek civilization distinguished mathematics by giving it abstract and general characteristics
- Pre-Greek civilizations confined solutions of mathematical problems to tangible cases
- Mathematical concepts were communicated sporadically and geared toward practical outcomes in pre-Greek civilizations
- The Hundred Years' War was a conflict between the Kingdom of France and the Kingdom of England
- "The deeds of Aeneas were sung by Virgil" is a passive verb construction
Logical Reasoning and Problem-Solving
- To pass the test according to the table, a mark of higher than 5 is needed, and 50% of candidates passed the test
- Shelly is one of 1500 participants in a Latin contest;12% of participants will receive a prize of silver or gold pens
- The probability of Shelly receiving a gold-plated pen, if the number of silver-plated pens is twice the number of gold-plated ones, is 4%
- Two consecutive discounts of 10% and 20% are equal to a single discount of 28%
- Stacie builds a cube using 343 blocks of wood, then paints it green, and 218 blocks will have at least one side painted green
- It can be deduced that if Marco arrived late, than he did not take the train, given "When he takes the train, Marco always arrives at work on time"
Biology
- Cellular respiration occurs within mitochondria
- Glucose is a hexose monosaccharide
- Ribose is the pentose sugar present in RNA nucleotides
- Carrier proteins transfer molecules and ions across the plasma membrane
- ATP is the cell's energy currency
- ATP hydrolysis is an exergonic reaction
- Intercellular compartmentalization is characteristic of eukaryotes
- The centriole is composed of microtubules
- Mitochondria have an outer membrane and a very selective inner membrane
- An anticodon is a sequence of three nucleotides on tRNA corresponding to a codon on mRNA
- Ribosomes are made of RNA and proteins
- The cell membrane consists of a double phospholipid layer with hydrophobic tails facing inward, plus integral and peripheral proteins
- Translation is the process in protein synthesis, where mRNA is read and converted into a specific sequence of amino acids
- Microtubules, microfilaments, and intermediate filaments are the principal components of the cytoskeleton
- An allele is one of several alternative forms of a gene
- In a heterozygous condition, a dominant allele can express itself
- Mutations are alterations in the genetic information of a cell
- Translation is the process that leads to the synthesis of polypeptide chains from mRNA
- The complementary strand to the DNA sequence CCGTTATTGA is GGCAATAAC
- Replication is the process through which DNA is used as a template to synthesize new DNA molecules
- A prokaryotic operon is a functional unit composed of a group of adjacent genes, co-ordinately controlled, and of DNA sequences with regulatory functions
Chemistry
- A mixture of 0.3 mol N2, 0.5 mol CO2, and 0.4 mol O2 exerts a pressure of 2.4 atm, the nitrogen exerts a pressure of 0.6 atm
- A gas confined in a rigid cylinder at -3°C exerts 9 atm; if heated to 27°C, it would exert 10 atm
- BaO forms a hydroxide when reacting with water
- In the theoretical reaction 4 FeS2 + 11 O2 → 2 Fe2O3 + 8 SO2, to obtain 1 mol of Fe2O3, 2 mol of FeS2 and 5.5 mol of O2 are necessary
- Adding 60 mL of water to 15 mL of a 0.25 M H2SO4 solution results in a 0.05 M solution
- 0.6 moles of Na+ ions are found in 250 mL of a 1.2 M solution of Na2SO4
- In the reaction NH3 + BF3 → NH3BF3, ammonia behaves as a Lewis base
- Zinc nitrate, nitrogen dioxide, and water are obtained when metallic zinc reacts with nitric acid, and the reducing species is Zn(s)
- 2,3-Dimethylpentane contains the most hydrogen atoms
- A carbon-oxygen double bond is NOT present in dimethyl ether
- 1013 millibar does NOT correspond to 1 atm
- Given nitrogen's relative atomic mass is 14 u, , 3.01×10^22 nitrogen atoms are present in 0.7 g of gaseous nitrogen
- With 9 g of carbon reacting with 36 g of oxygen, 33 g of CO2 are produced, assuming 100% yield
- 99 mL of water needs to be added to 1 mL of an HCl solution with a pH of 2 to obtain a pH of 4
- In the Brønsted-Lowry theory, a strong acid forms a conjugate with a weak base
Physics and Mathematics
- The expression (512^(1/3))^(1/2) is equivalent to 2√2
- The reciprocal of f(2) is 1/4 if f(x) = log₂(x² + 12)
- In a bag with 3 red and 7 green balls, with replacement after each draw, the probability of extracting 2 green balls is 49/100
- The solution to the inequality (x² + 4x + 3) / (4 - 3x) ≥ 0 is each real x with x < 4/3
- The acute angle between a tangent at point A to a circle and a chord AB is equal to any point D on the larger arc AB subtended by angle ADB
- The volume of a cylinder with base radius 5 cm and height 7 cm is 175π cm³
- In a right triangle, where a and b are legs and c is the hypotenuse, and α is the angle opposite a, then a = c sin(α)
- If a braking force of 210 N is applied for 5 m on a boat, the power developed by the braking force is 1050 W
- For an ideal gas at constant temperature, if volume triples, pressure becomes P/3
- If 2922W are dissipated in a conductor with a 10A current, the resistance is 29.22 Ω
- An electron moving with constant velocity entering a perpendicular magnetic field maintains constant velocity
- For a point particle moving along x-axis with x(t) = 4 cos(ωt) where x is in meters, t in seconds and ω = 2π rad/s, the velocity at t*=1/2s equals approximately -4 m/s
- False: In the pendulum rod moves from the vertical position, In the absence of friction, the pendulum tends to come to a stop after a certain time
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