MCAT 2011 Biology
1) when chromosomes uncoil, the nucleoli are reformed and two nuclei are the two poles of the cell;
stage is known as
A. prophase
B. metaphase
C. telophase
D. anaphase
2) Mental retardation, short stature, broad face and squint eyes are the symptoms of
A. Bown's syndrome
B. Klinefelter's syndrome
C. Turner's syndrome
D. XYZ syndrome
3) Chiasmata formation takes place during the process which is known as
A. crossing over
B. attachment
C. pairing
D. leptotene
4) healing of a wound and repair is the phenomenon which takes place by the process of
A. mitosis
B. meiosis
C. cell growth
D. mitosis and meiosis
5) Which one of the following is the main cause of cancer?
A. mutation
B. controlled cell division
C. regulated mitosis
D. haploid division
6) The covalent bond formed between two monosaccharides is called
A. glycosidic bond
B. hydrogen bond
C. peptide bond
D. disulphide bond
7) The bond formed between glucose and fructose to form sucrose is
A. 1,4 glycosidic linkage
B. 1,2 glycosidic linkage
C. 1,6 glycosidic linkage

 

D. 1,3 glycosidic linkage
8) In an amino acid in which the R-group is hydrogen, the amino acid will be
A. Alanine
B. Glycine
C. Leucine
D. Valine
9) Fatty acid are the organic compounds containing hydrogen, oxygen and one of the following are
A. carboxylic
B. Amino
C. acyl
D. sucrose
10) Liposomes are used in gene therapy against
A. hypercholesterolemia
B. coronary artery angioplasty
C. cystic fibrosis
D.severe combined immunodeficiency syndrome
11) Genetically engineered cells are introduced into bone marrow cells in the treatment of
A. hypercholesterolemia
B. severe combined immunodeficiency syndrome
C. cystic fibrosis
D. coronary artery angioplasty
12) Which one of the following is depleting and causing thinning if ozone
A. chlorine
B. bromine
C. chlorofluorocarbon
D. carbon
13) The typical environment of a particular organism population community is called
A. niche
B. ecosystem
C. habitat
D. biosphere
14) Excessive enrichment of water with nutrients by human activity by which large amount of living
organic matter grows is called
A. archeotrophication
B. eutrophication
C. enrichment
D. low trophication
15) In an ecosystem, mycorrihza is an example of

 

A. symbiosis
B. predation
C. commensalism
D. parasitism
16) Successive stages of eating and being eaten by which recycling of materials and flow of energy takes
place is called
A. food chain
B. food web
C. trophic level
D. food link
17) The sex of individuals of next generation always depends on one of the parent, who is
A. Heterogametic
B. Homogametic
C. Isogametic
D. Isomorphic
18) Which of the following will be haemophilic?
a) X(H)X(h)
b) X(H)X(H)
c) X(h)Y
d) X(H)Y
19) Which of the following is an example of X-linked recessive trait in humans?
A. Hypophosphatemic rickets
B. Colour blindness
C. Baldness
D. Beard growth
20) Which trait in human is an example of multiple alleles?
A. Eye colour
B. skin colour
C. ABO- blood group
D. Rh-blood group
21) When a gene pair at one locus interacts with another gene at another locus, the interaction is called
A. Dominance
B. Multiple allelism
C. Pleiotropy
D. Epistasis
22) The combination of a pentose sugar with a base result in a compound known as
A. Nucleotid

 

B. Nucleoside
C. Nucleic acid
D. Polynucleotide
23) An enzyme and substrate reacts through a special feature or site present in enzyme known as
A. Building site
B. Active site
C. Catalyst site
D. Inhibition site
24) The non-protein part of enzyme which is covalently and permanently bonded is called
A. Prosthetic group
B. co-factor
C. co-enzyme
D. Activator
25) one of the pyrimidine bases is absent in DNA
a) uracil
b) thymine
c) cytosine
d) adenine
26) enzymes increase the rate of reaction by
A. increasing temperature
B. decreasing pH
C. decreasing activation energy
D. increasing activation energy
27) Which one of the following diseases caused by enveloped RNA virus and spread in epidemic form?
A. Influenza
B. Herpes simplex
C. polio
D. small pox
28) The structure which contains the gene for drug resistance bacteria are
A. Nucleoids
B. Mesosomes
C. Chromatin bodies
D. Plasmids
29) Antibiotics that kill microbes immediately are called
A. Microbistatic
B. Microbicidal
C. Biostatic
D. Chemotherapeatic

 

30) Which one of the following fungi cause vaginal thrush?
A. Candida
B. Aspergillus
C. tortula
D. Penicillium
31) Body cavity of round worms is called
A. Pseudocoelom
B. Coelom
C. Acoelom
D. Enteron
32) Fasciola is endoparasite of
A. Colon
B. Liver
C. Small intestine
D. Bile duct
33) Trypanosoma is transmitted in human beings by
A. Plasmodium
B. Anopheles
C. House fly
D. Tse-tse fly
34) The nervous system develops from which of the following layer during embroynic development of
animals?
A. Mesoderm
B. Ectoderm
C. Endoderm
D. Mesoderm and endoderm
35) Endosperm is formed as a result of
A. pollination
B. self-pollination
C. double fertilization
D. cross pollination
36) Which of the following enzyme is released in an inactive form?
A. Amylase
B. Lipase
C. Enterokinase
D. Pepsin
37)
Which of the following hormones stimulate the secretion of pancreatic juice from pancreas in liver?

 

A. Secretin
B. Pepsinogen
C. Gastrin
D. Both gastrin and secretin
38) in large intestine vitamin k is formed by the activity of
A. symbiotic bacteria
B. obligate parasite
C. papasitic bacteria
D. Facultative bacteria
39) During swallowing of food which structure close nasal opening?
A. Hard palate
B. Soft palate
C. Epiglottis
D. Larynx
40) The right atrium of the heart usually receives the
A. Deoxygenated blood
B. Oxygenated blood
C. Filtered blood
D. Non-filtered blood
41) The largest lymph duct called thoracic lymph duct drains into
A. Subclavian vein
B. Renal vein
C. Pulmonary vein
D. Hepatic portal vein
42) Which protein plays a major role in maintaining osmotic balance ?
A. Albumin
B. Globulin
C. Fibrinogen
D. Prothrombin
43) The type of agranulocytes which stays in blood for a few hours and then enters tissues and become
macrophages is
A. Lymphocytes
B. Monocytes
C. Eosinophil
D. Basophils
44) Reabsorption of water by counter current multiplier mechanism takes place at
A. Proximal tubule
B. Distal tubule

 

C. Collecting duct
D. Loop of henle
45) Antidiuretic hormone helps in reabsorption of water by changing permeability of
A. Proximal tubule
B. Distal tubule
C. Collecting duct
D. Loop of henle
46) During peritoneal dialysis, the dialysis fluid is introduced into which part of human body ?
A. Liver
B. abdomen
C. Kidney
D. Pancreas
47) Aldosterone helps in conservation or active absorption of
A. Sodium
B. Calcium
C. Potassium
D. Bicarbonate ions
48) Maximum reabsorption takes place in which part of the nephron ?
A. Distal tubule
B. Villi
C. Cortical tissue
D. Proximal tubule
49) Over-activity of sympathetic nervous system causes
A. Disturbance of vision
B. Constipation
C. Decrease in blood pressure
D. Increase in heart rate
50) Which structures respond when they are stimulated by impulse coming through motor neuron?
A. Receptors
B. Responses
C. Effectors
D. Transduction
51) Respiratory center is located in
A. Cerebrum
B. Cerebellum
C. Medulla
D. Hypothalamus
52) A neurological condition characterized by involuntary tremors , diminished motor activity and rigidityis called
a) epilepsy
b) Parkinson’s disease
c) Alzheimer’s disease
d) Cerebellar tumours
53) A type of cells in human testes which produce testosterone is called
A. interstitial cells
B. germ cells
C. sertoli cells
D. spermatocytes
54) Breakdown of endometrium during mensuration is due to
A. increase in level of LH
B. decrease in level of progesterone
C. increase in level of progesterone
D. increase in level of oestrogen
55) Oogonia are produced in the germ cells
a) both uterus and cervix
b) cervix
c) uterus
d) ovary
56) Which of the following diseases can be prevented through vaccination ?
A. AIDS and cancer
B. Malaria and AIDS
C. Typhoid and cancer
D. Measles and mumps
57) Newly produced cells/ individuals which are identical to each other are known as
A. Genetically modified
B. Transgenic animals
C. Transgenic bacterias
D. Clones
58) Which of the following is a blood borne disease ?
A. Hepatitis
B. Cholora
C. Influenza
D. candidiasis
59) The control of pest has traditionally meant regulation by natural enemies, predators, parasites and
pathogens; this type of control is known as
A. Cultural control
B. Biological control
C. Pesticides control
D. Insecticides control
60) Which of the following organelles is concerned with the cell scretion
A. Ribosomes
B. Golgi apparatus
C. Lysosomes
D. Mitochondria
61) Which of the following contains peptidoglycan cell wall ?
A. Penicillium
B. Bacterium
C. Adiantum
D. Polytrychum
62) The inner membrane of mitochondria is folded to form finger like structure called
A. Cristea
B. Vesicle
C. matrix
D. cisternae
63) the interior of the chloroplast is divided into heterogeneous structure, embedded in the matrix,
known as
A. Grana
B. Stroma
C. Thylakoids
D. Cisternae
64) In which phase of the cell division the metabolic activity of the nucleus is high ?
A. Mitosis
B. Interphase
C. Meiosis
D. Cell cycle
65) Luteinizing hormone triggers
A. Cessation of oogenesis
B. Breakdown of oocyte
C. Ovulation
D. Development of zygote
66) Syphilis is a sexually transmitted disease which is caused by
A. HIV / AIDS
B. Pseudomonas pyogenes
C. Treponema pallidum
D. Neisseria
67) Muscles is made up of many cells which are reffered to as
A. Myofilaments
B. Myofibrils
C. Sarcolemma
D. Muscles fiber
68) The length of myofibril from one Z-band to the next is known as
A. Sarcomere
B. Sarcolemma
C. Sarcoplasm
D. Muscle fiber
69) The calcium ions released during a muscle fiber contraction attach with
A. Myosin
B. Actin
C. Tropomyosin
D. Troponin
70) A muscle condition resulting from the accumulation of lactic acid and ionic imbalance is called
A. Tetany
B. Muscle fatigue
C. Cramp
D. Tetanus
71) The pigment which stores oxygen in muscles is
A. Hemoglobin
B. Myoglobin
C. Myosin
D. Actinomyosin
72) Neurosecretory cells are present in which part of brain
A. Hypothalamus
B. Midbrain
C. PONS
D. Cerebellum
73) which of the following is the function of glucagon hormone
a) glycogen ‡ glucose
b) glucose ‡ glycogen
c) glucose ‡ lipids
d) glucose ‡ proteins
74) Addison's disease is caused due to destruction of
A. Adrenal cortex
B. Pituitary adrenal axis

 

C. Adrenal medulla
D. Hypothalamus
75) Which group of hormone is made up of amino acids and their derivatives ?
A. Vasopressin and antidiuretic hormone
B. Epinephrine and non-epinephrine
C. Oestrogen and testosterone
D. Insulin and glucagon
76) Thymus gland is involved in maturation of
A. Platelets
B. B-lymphocytes
C. Eosinophils
D. T-lymphocytes
77) In passive immunity which of the following component are injected into blood
A. Antigens
B. Immunogens
C. Serum
D. Immunoglobulins
78) Mucous membranes are part of body defence system and they offer
A. Physical barries
B. MEchanical barriers
C. Chemical barriers
D. Biological barriers
79) Immediate protection is obtained from
A. Passive immunity
B. Active immunity
C. Vaccination
D. Natural active immunity
80) the immunity in which T-cells recognize the antigens or microorganisms is known as:
a)tissue grafting
b)phagocytosis
c)cell mediated immunity/ response
d)hormonal immunity / response
81)oxidative phosphorylation , synthesis of ATP in the presence of oxygen occurs in:
A)all types of cells
B)all anaerobic cells
C)all primitive cells
D)all aerobic cells
82)glycolysis is the breakdown of glucose into two molecules of:
a)glycerate

 

b)lactic acid
c)pyruvate
d)succinic acid
83)before entering into Kreb’s cycle , the pyruvate is first decarbox
ylated and oxidized into:
a)alpha ketoglutaric acid
b)citric acid
c)glyceric acid
d)acetic acid
84) Some electron from the second primary accepter may pass back to chlorophyll molecules by
electron carrier system , yielding ATP this process is called
a)phosphorylation
b)photophosphorylation
c)non-cyclic phosphorylation
d) cyclic phosphorylation
85)Z-scheme is used for:
a) non-cyclic photophosphorylation
b) cyclic photophosphorylation
c)both cyclic and non-cyclic photophosphorylation
d)oxidative phosphorylation
86)the common vectors used in recombinant DNA technology are:
A)probes
B)palindromes
C)plasmids
D)prions
87)the enzyme used to isolate gene from DNA is:
a)helicase
b)reverse transcriptase
c)restriction enzyme
d)DNA polymerase
88)which one of the following enzymes is temperature insensitive?
a)DNA polymerase i
b)Taq polymerase
c) DNA polymerase ii
d)RNA polymerase
Regards : Entry Test Preparation.

MCAT PAST PAPER 2011

MCAT physics 2011
1) An object having spherical shape of radius r experiences a retarding force F from a fluid of co-efficient
of viscosity ‘ ‘ when moving through the fluid with speed v . what is the ratio of retarding force to
speed
a) 6 pi  r^2
b) 6 pi /r^2
c) 6 pi  r
d) 6 pi /r
2) For interference of light waves to take place, the required condition is
a) the path difference of the light waves from the two sources must be large
b) the interfering waves must be non-coherent
c) the light waves may come from different sources
d) the light waves may come from two coherent sources
3) the property of bending of light around an obstacle and spreading of light waves into geometric
shadow of an obstacle is called
a) diffraction
b) polarization
c) quantization of light
d) interference of light
4) the normal human eye can focus a sharp image of an object on the eye if the object is located at
certain distance called
a) least point
b) near point
c) far point
d) distinct point
5) a source of sound wave emits waves of frequency ‘f’ . if ‘v’ is the speed of sound waves, then what
will be the wavelength of the waves
a) v/f
b) vf
c) (v-u)/f
d) (v-u)f
6) the spectrum of a star’s light is measured and the wavelength of one of the lines as the sodium’s line
is found to be 589nm. The same line has the wavelength of 497nm when observed in the laboratory.
This means the star is
https://www.facebook.com/Etest.Prep
Page 2
a) moving away from the earth
b) moving towards the earth
c) stationary
d) revolving around the planet
7) what is the period of mass spring system during SHM if the ratio of mass to spring constant is 1/4?
a) pi
b) 2pi
c) 1/pi
d) 1/2pi
8) a wire is stretched by a force which causes an extension . the energy is stored in it only when:
a) extension of wire is proportional to force applied
b) the cross section area of the wire remains constant
c) the wire is not stretched beyond its elastic limit
d) the weight of wire is negligible
9) which statement is correct
a) Elasticity is that property of the body which enables the body to regain its original dimension
b) elasticity is that property of a body that does not allow it to return to its original shape
c) Elasticity is that property of a body that allows it to retain its original shape and dimension after the
stress is removed
d) Elasticity is that property of a body that obeys hook’s law
10) which of the following is the expression of root mean square speed of a gas having n number of
molecules contained in the container?
a) sq. root (V1^2 + V2^2 +V3^2 + …… + Vn^2)/n
b) (V1^2 + V2^2 +V3^2 + …… + Vn^2)/n
c) sq. root (V1 + V2 +V3 + …… + Vn)/n
d) (V1 + V2 +V3 + …… + Vn)/n
11) for a gas of volume V in its equilibrium state, if the pressure does change with time then total kinetic
energy of gas is constant because
a) collisions between gas molecules occur
b) collisions between gas molecules occur linearly
c) collisions must be elastic
d) collisions must be in elastic
12) when the dimensions of both sides of an equation are equal then the equation is said to be
a) simultaneous
b) homogeneous
c) instantaneous
https://www.facebook.com/Etest.Prep
Page 3
d) quadratic
13) two long parallel wires Wire 1 and Wire 2 repel each other what could be the reason ?
a) Both carry current in same direction
b) both carry current in opposite directions
c) wire 1 has current but wire 2 has no current
d) wire 2 has current wire 1 has no current
14) if the number of turns of a solenoid circular coil is doubled but the current in the coil and radius of
the coil remains same, then what will be the magnetic flux density produced by the coil?
a) magnetic flux density will be halved
b) magnetic flux density increases by different amount at different points
c) magnetic flux density remains unchanged
d) magnetic flux density will be doubled
15) which of the following isotope is used to estimate the circulation of blood in a patient
a) Carbon-14
b) Carbon-12
c) Phosphorus-32
d) Sodium-24
16) for the radiotherapy of a patient it is required to double the absorbed dose in gray. What step
should be taken?
a) energy must be quartered
b) energy must be halved
c) energy must be increased four times
d) energy must be doubled
17) which of the following is the proper way to study the sinusoidal waveform of the voltage?
a) voltage is connected to X input and the time base is switched of
b) voltage is connected to Y input and the time base is switched on
c) voltage is connected to Y input and the time based is switched of
d) voltage is connected to X input and the time based is switched on
18) cathode ray oscilloscope consists of following parts
a) filament, cathode, grid , anode
b) cathode, anode, capacitor, screen
c) emitter, base, collector, resistor
d) resistor, capacitor, inductor, ___
19) if 2A current passes through a resistor when connected to a certain battery. If the resistance is
replaced by the double resistance then the current will become
https://www.facebook.com/Etest.Prep
Page 4
a) 2A
b) 4A
c) 6A
d) 1A
20) What is the order of wavelength of x-rays
a) 10^-6
b) 10^-10
c) 10^-3
d) 10^0
21) A laser beam is
a) non coherent
b) mono chromatic
c) both
d) none
22) what is the torque acting on the pendulum of length L inclined at an angle theta
a) mgL
b) mgL sin theta
c) 0
d) mgL cos theta
23) cathode rays are
a) dependent on nature of gas
b) depend on target material
c) independent on nature of gas
d) none
24) 1 degree is equal to
a) /180
b) 180/
c) 2/180
d) /57.3
25) if the resistance in the circuit is doubled then what’s the current now
a) half
b) zero
c) double
d) constant
26) THE HALF LIFE OF A RADIOACTIVE ELEMENT is 1500 years the fraction of sample that left after 6000
https://www.facebook.com/Etest.Prep
Page 5
years
a. 1/2
b. 1/16
c. 1/8
d 1/4
27) HALF LIFE OF RADON IS
A. 1500YEAR
B. 23.5 MIN
C. 3.8 DAYS
D. 4*10 ^789
28) in which of the following detectors impulse is independent of energy of particle
a. GM counter
b. solid state
c. Wilson cloud
d all
29) THE SHORTEST WAVELENTH OF CONTONOUS X RAY , EMITTED FROM AN X RAY TUBE , DEPEND ON
A. I in tube
b. Voltage applied
c. nature of tube
d. atomic number of target
30) 4200 VOLT IS USED in x-ray tube to accelerate electron the speed of x ray
a. 2 *1O^8
B. 3*10 ^8
C2* 10^7
D. 3* 10^9
Regards: Entry Test Preparation