AAMC MCAT Official Prep Free Sample Test with solved solution 2023

AAMC MCAT Official Prep Free Sample Test with solved solution 2023When the level of liquid inside a buret is higher than outside, what does that mean for the gas pressure inside the buret? It is lower thab outside An ultrasound examination could show the motion of a fetus. In order to image this motion, the ultrasound examination devices requires what minimal information? A.The speeds of the sound and of the moving object. B.The speed of the sound, and the frequencies of the sound waves emitted and observed. C.The speeds of the sound and of the moving object, and the frequencies of the sound waves emitted and observed. D.The speeds of the sound and of the moving object, and the frequencies and wavelengths of the sound waves emitted and observed. B. The Doppler effect in ultrasound waves is used to provide fetal images. The Doppler effect relates the frequency of the ultrasound wave as detected by a moving detector to the frequency of the wave when the source is stationary, the speed of the source, and the speed of the detector. Doppler effect equation f' = f (Vw)/(Vw-Vs) where V = speed of sound in the medium Vd = speed of the detector Vs = speed of the source Top sign: toward (if source or detector is moving toward other) Bottom sign: away (if they moving away from other object) *Treat numerator and denominator separately when deciding if top or bottom sign Relationship between temperature and resistance Directly proportional IR peaks --Carboxylic Acid: OH (~3000); C=O (~1700); C-O (~1200) -- Alcohol: OH (~3000); C-O (~1200) --Ester: C=O (~1700); C-O (~1200) Myopia is a condition of the eye where the crystalline lens focuses the light rays to a position between the lens and the retina. To correct for this condition, a thin lens is placed in front of the eye that will help to focus light on the retina. The type of lens required is: A.cylindrical. B.converging. C.diverging. D.spherical. C. A diverging lens spreads out light before it reaches the crystalline lens. Therefore, the crystalline lens will focus the light further back, that is on the retina. Archimedes' Principle States that the buoyant force is equal to the weight of the fluid displaced by an object. What does the d in dAMP stand for? Deoxy What functional group does aspartate side chain contain? Carboxylate How to convert from electron volt to joule Multiple by elementary charge Watts to Joules 1 W = 1 J/s How many electrons does NADH carry? FADH2? Coenzyme Q? Cytochrome C? 2, 1 or 2, 2, 1 Suitable PCR primers High GC content, especially at the 5' and 3' ends Nondisjunction Error in meiosis in which homologous chromosomes fail to separate. Occurs in anaphase If the GAPDH gene is continuously expressed, where is it most likely found? A.In euchromatin B.In a telomere C.In heterochromatin D.In a centromere A. Euchromatin is the form of DNA that is available for transcription. The genes for red-green color blindness will affect production of proteins in which of the following types of cells? A.Neurons in the visual center of the brain B.Neurons making up the optic nerve C.Pigment cells of the iris D.Visual receptor cells in the retina D. The retina is the portion of the eye that contains the receptors activated by the light. Secondary structure breakers Glycine and proline What type of disorder is depression? Mood disorder