Download [PDF] November 2004 BMAT S2 Questions Scientific Knowledge and Applications BioMedical Admissions Test

File Information

Filename:	[PDF] November 2004 BMAT S2 Questions Scientific Knowledge and Applications BioMedical Admissions Test.pdf
Filesize:	278.37 KB
Uploaded:	08/08/2021 23:31:17
Keywords:	november 2004 bmat s2 questions scientific knowledge and applications biomedical admissions test pdf
Description:	Download file or read online BMAT past exam paper scientific knowledge and applications 4500/12 november 2004 questions section 2 - BioMedical Admissions Test
Downloads:	1

File Preview

Download Urls

Short Page Link

https://www.edufilestorage.com/3a5

Full Page Link

https://www.edufilestorage.com/3a5/PDF_November_2004_BMAT_S2_Questions_Scientific_Knowledge_and_Applications_BioMedical_Admissions_Test.pdf

HTML Code

<a href="https://www.edufilestorage.com/3a5/PDF_November_2004_BMAT_S2_Questions_Scientific_Knowledge_and_Applications_BioMedical_Admissions_Test.pdf" target="_blank" title="Download from eduFileStorage.com"><img src="https://www.edufilestorage.com/cache/plugins/filepreviewer/2157/pdf/150x190_middle_46f4e7862b1eb5bd4935adbbba5d79e8.jpg"/></a>

Forum Code

[url=https://www.edufilestorage.com/3a5/PDF_November_2004_BMAT_S2_Questions_Scientific_Knowledge_and_Applications_BioMedical_Admissions_Test.pdf][img]https://www.edufilestorage.com/cache/plugins/filepreviewer/2157/pdf/150x190_middle_46f4e7862b1eb5bd4935adbbba5d79e8.jpg[/img][/url]

[PDF] November 2004 BMAT S2 Questions Scientific Knowledge and Applications BioMedical Admissions Test.pdf | Plain Text

University of Cambridge Local Examinations Syndicate Biomedical Admissions Test Wednesday 3 November 2004 Morning 30 minutes SECTION 2 Scientific Knowledge and Applications Instructions to Candidates Please read this page carefully, but do not open the question paper until you are told that you may do so. A separate answer sheet is provided for this section. Please check you have one. You also require a soft pencil and an eraser. Please first write your name, date of birth, Biomedical Admissions Test candidate number and centre number in the spaces provided on the answer sheet. Please write very clearly. Please also write your BMAT candidate number in the spaces below. BMAT Candidate Number Speed as well as accuracy is important in this section. Work quickly, or you may not finish the paper. There are no penalties for incorrect responses, only points for correct answers, so you should attempt all 27 questions. Unless otherwise stated, all questions are worth one mark. Answer on the sheet provided. Many questions ask you to show your choice between options by shading a circle (or circles, if specified in the question). If questions ask you to write in words or numbers, be sure to write clearly in the spaces provided. If you make a mistake, erase thoroughly and try again. Any rough work should be done on this question paper. Calculators are NOT permitted. Please wait to be told you may begin before turning this page. This paper consists of 12 printed pages and 4 blank pages.

2 BMAT 2004: Section 2 - © Copyright UCLES 2004 BLANK PAGE

3 BMAT 2004: Section 2 - © Copyright UCLES 2004 1 The diagram shows a view from the front of a section through the heart and associated blood vessels. Which sequence of numbers shows the course of blood flow from the point of entry to the heart from the lungs, to its eventual exit from the heart to supply the lungs? A 2 → 3 → 4 → 8 → 1 → 5 → 6 → 7 B 2 → 3 → 4 → 1 → 7 → 6 → 5 → 8 C 7 → 6 → 5 → 8 → 2 → 3 → 4 → 1 D 7 → 6 → 5 → 1 → 8 → 4 → 3 → 2 E 8 → 5 → 6 → 7 → 2 → 3 → 4 → 1 F 8 → 5 → 6 → 7 → 1 → 4 → 3 → 2 2 The right-angled triangle shown has horizontal and vertical sides measuring (4 + √2) cm and (2 - √2) cm respectively. (2 - 2) cm√ (4 + 2) cm√ (not to scale) Calculate the area of the triangle. A (5 + 3√2) cm 2 B (3 − √2) cm 2 C (3 + 3√2) cm 2 D (5 − √2) cm 2

4 BMAT 2004: Section 2 - © Copyright UCLES 2004 3 The equation summarises the reaction of copper and dilute nitric acid. q Cu + r HNO 3 → s Cu(NO 3)2 + 6 H2O + t NO 2 What values of q, r, s and t are needed to balance the equation? 4 The diagram shows a simplified version of the brake pedal of a car. piston 60 N 6cm16 cm 4cm 2cm to brakes pivot A driver applies a force of 60 N to the pedal. What force is applied to the piston? A 15 N B 20 N C 180 N D 240 N E 300 N F 540 N 5 During the electrolysis of hydrochloric acid, positively charged hydrogen ions move towards the cathode at a rate of 10 18 ions per second. Negatively charged chloride ions move towards the anode at the same rate. Both hydrogen and chloride ions carry charges of magnitude 1.6 × 10 -19 C. What is the resulting current flow between the electrodes?

5 BMAT 2004: Section 2 - © Copyright UCLES 2004 6 The diagram shows a section through the thorax. Z X Y When breathing out (expiring), what happens to the muscles at X and Y and the pressure at Z? muscle X muscle Y pressure Z A contracts contracts increases B contracts relaxes increases C relaxes contracts decreases D relaxes relaxes decreases E relaxes relaxes increases 7 The table shows some properties of five substances A - E. electrical conductivity substance melting point °C boiling point °C when solid when molten A 800 1470 none good B 98 880 good good C -20 58 none none D 114 444 none none E 1700 2200 none none From the substances in the table, select the substances that could be: i) an inorganic substance with a giant molecular structure; ii) a metal; iii) an ionic compound; iv) a liquid at room temperature and atmospheric pressure.

6 BMAT 2004: Section 2 - © Copyright UCLES 2004 8 An oxide of tungsten contains 79.31% by mass of tungsten. What is the formula of this oxide? (relative atomic masses: O = 16; W = 184) A WO B W 2O3 C WO 2 D W 3O4 E WO 3 9 A ball is thrown vertically upwards and leaves the thrower’s hand with a speed of 12 m/s. Calculate the height to which it rises. You may assume that all of the initial kinetic energy of the ball has been converted into gravitational potential energy when the ball reaches its highest point. (Take the value of g to be 10 N/kg.) 10 The diagram shows two sets of parallel lines. Angles θ, α, β and γ are as marked. θ γ β α Which of the following statements are true? (shade all that apply) A Cos α = − Cos θ B Sin β = − Sin θ C Tan γ = − Tan θ D Sin (θ + α) = 1

7 BMAT 2004: Section 2 - © Copyright UCLES 2004 11 One of the steps in the breakdown of glucose is the conversion of pyruvic acid, CH 3COCO 2H, into lactic acid, CH 3CH(OH)CO 2H. This is an example of: A oxidation B reduction C hydration D acidification 12 The diagram shows a family tree. 12 5 3 4 8 9 67 10 11 female male Key The grandfather, individual 1, carries a recessive allele on his X chromosome. Which other individuals could have inherited this allele? A 3,4,5,6 B 3,4,5,7 C 4,5,6,8 D 4,5,8,9 E 5,8,9,10 F 6,8,9,11 13 Solve the inequality x 2 ≥ 8 – 2x A x ≥ 4 B x ≤ 2 and x ≥ -4 C x ≥ -2 and x ≤ 4 D x ≥ 2 or x ≤ -4

8 BMAT 2004: Section 2 - © Copyright UCLES 2004 14 Plugs of cotton wool containing concentrated aqueous ammonia and concentrated hydrochloric acid are placed at opposite ends of a tube, at room temperature. A white ring of solid ammonium chloride forms nearer the hydrochloric acid. concentrated aqueous ammoniaconcentrated hydrochloric acid white ring Which of the following can be deduced from this experiment? A The ammonia molecule has more atoms than the hydrogen chloride molecule. B The boiling point of ammonia is less than that of hydrogen chloride. C The concentration of the aqueous ammonia is less than that of the acid. D The mass of an ammonia molecule is less than that of a hydrogen chloride molecule. E The reactivity of ammonia is less than that of hydrogen chloride. 15 In these circuits the cells are identical and their internal resistances can be ignored. S2 S3 A3 A2 V1 S1 A1 Indicate whether each of the statements below is true or false for the circuits shown. i) When switch S 1 is closed, the reading on voltmeter V 1 will increase. ii) When switch S 1 is closed, the reading on ammeter A 1 will increase. iii) When switch S 2 is closed, the reading on ammeter A 2 will increase. iv) When switch S 2 is closed, the reading on ammeter A 3 will decrease. v) When switch S 3 is closed, the reading on ammeter A 2 will increase.

9 BMAT 2004: Section 2 - © Copyright UCLES 2004 16 In 2001 a quarter of the population of Wales reported having a limiting long-term illness or disability which restricted their daily activities. What is the probability that out of a random group of three people who live in Wales, exactly one of them will have reported such an illness or disability? A 649 B 64 27 C 64 37 D 4 3 17 A parachutist of total mass 90 kg (including the parachute) is falling at a terminal velocity of 6 m/s. Take the force due to gravity on a mass of 1 kg to be 10 N. What is the magnitude of the air resistance force acting on her? A zero B 150 N C 540 N D 900 N E 5400 N 18 The general formula for the alkane series of hydrocarbons is C nH2n+2 The primary amine series has the same saturated structure as the alkanes, but also contains an –NH 2 group. What is the general formula for the primary amine series? A C nH2nN B C nH2n+1 N C C nH2n+2 N D C nH2n+3 N

10 BMAT 2004: Section 2 - © Copyright UCLES 2004 19 The diagram shows three sperm and three ova containing sex chromosomes X and Y (not drawn to scale). X Y XY XYXYABC DEF ova sperm Indicate the letters ( A to F) of all the sex cells which are normal. 20 Which one of the following is not a measure of electrical power? ( V = potential difference, I = current, Q = charge, t = time, R = resistance) A t QV B R I2 C tR Q 2 D VI E R V 2 21 Which blood vessel will have capillaries at both ends? A Anterior vena cava B Aorta C Hepatic artery D Hepatic portal vein E Renal vein

11 BMAT 2004: Section 2 - © Copyright UCLES 2004 22 Nuclide P decays by emission of ionising radiation to produce nuclide Q. This new nuclide then decays by further emission into nuclide R. The process is shown below, with the appropriate mass numbers (nucleon numbers) and atomic numbers (proton numbers). R Q P1 Z A 1 Z A Z X − + → → Which line in the table shows the type of particle emitted at each stage, and the value of X? first decay second decay value X A alpha alpha A B alpha alpha A – 2 C alpha beta A – 4 D beta beta A E beta alpha A – 2 F beta alpha A – 4 23 In water, the Fe 2+ ion bonds with water to form Fe(H 2O) 62+ . In haemoglobin in the blood, five of the water molecules have been displaced. In the presence of air, the last water molecule is displaced by oxygen to give oxyhaemoglobin. In the presence of carbon monoxide, the oxygen is displaced to give carboxyhaemoglobin. Which of the following shows the correct order of the strength of the bonding to the Fe2+ ion (weakest first)? weakest strongest A carbon monoxide, water, oxygen B carbon monoxide, oxygen, water C oxygen, water, carbon monoxide D oxygen, carbon monoxide, water E water, oxygen, carbon monoxide F water, carbon monoxide, oxygen

12 BMAT 2004: Section 2 - © Copyright UCLES 2004 24 The diagram shows the leg muscles of an athlete leaving the starting blocks for a race. PQ R S T position 1 position 2 Which muscles contract and which relax to bring about the change from position 1 to position 2? muscles that contract muscles that relax A P, Q, R S, T B T, P Q, R, S C Q, R, T P, S D R, S P, Q, T E Q, R, S P, T 25 For a rigid body performing small oscillations about a fixed horizontal axis, the period of oscillations is given by () ghh k T 2 2 2+ =π where h is the distance of the centre of mass from the axis, g is the acceleration due to gravity, and k is the radius of gyration of the body about a parallel axis through the centre of mass. Rearrange the formula to make k the subject. A h gh T k−       = 2 2π B         − = 2 22 2 2 4h h g T kπ C () 2 2 2h gh T k− − =π D         − = 2 2 2 4h gh T kπ

13 BMAT 2004: Section 2 - © Copyright UCLES 2004 26 The list below describes some events that occur during nuclear division. Indicate, by shading the appropriate circles on the answer sheet, which events occur during mitosis and which occur during meiosis. i daughter nuclei are identical to parent nucleus ii all chromosomes are replicated iii leads to the formation of gametes iv two haploid nuclei are formed v genetic material appears as distinct chromosomes 27 The sum of the roots of a quadratic equation is 7, the product of the roots is 9. What is the equation? A x 2 + 7x + 9 = 0 B x 2 + 7x − 9 = 0 C x 2 − 7x + 9 = 0 D x 2 − 7x − 9 = 0 END OF SECTION 2

14 BMAT 2004: Section 2 - © Copyright UCLES 2004 BLANK PAGE

15 BMAT 2004: Section 2 - © Copyright UCLES 2004 BLANK PAGE

16 BMAT 2004: Section 2 - © Copyright UCLES 2004 BLANK PAGE