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Home » Medical Papers » UHS MDCAT » Aptitude Test - 53
1.During successions, the first organisms that develop on bare rock are:
A. Lichens
B. Shrubs
C. Moss
D. Lichens
2.andom, uncontrolled activity of some cells in the brain leading to chaotic activity in both sensory and motor nerves causes patients of to see and hear different strange things.
A. Epilepsy
B. Parkinson’s Disease
C. Alzheimer’s Disease
D. Epilepsy
3.Part of hind brain responsible for the balance and equilibrium of body is called:
A. Medulla
B. Cerebellum
C. Pons
D. Medulla
4.Events of menustral cycle are regulated by the:
A. Ethylene
B. Gonadotrophins
C. Auxins
D. Ethylene
5.During maternal mitosis, non-disjunction of autosomal chromosome pair results in the formation of an egg having 24 chromosomes in:
A. Klinefelter’s Syndrome
B. Down’s Syndrome
C. Turner’s Syndrome
D. Klinefelter’s Syndrome
6.During maternal mitosis, non-disjunction of autosomal chromosome pair results in the formation of an egg having 24 chromosomes in:
A. Klinefelter’s Syndrome
B. Down’s Syndrome
C. Turner’s Syndrome
D. Klinefelter’s Syndrome
7.Typical symptoms like enlarged breasts and small testis in male are attributed to:
A. Down’s Syndrome
B. Turner’s Syndrome
C. Klinefelter’s Syndrome
D. Down’s Syndrome
8.Fluid mosaic model of plasma membrane states that protein molecules float in a fluid _____ layer.
A. Galactose
B. Phospholipids
C. Glucose
D. Galactose
9.How many triplets of microtubules are present in centriole?
A. Ten
B. Eight
C. Nine
D. Ten
10.Turner’s syndrome is characterized by having:
A. Trisomy 21
B. 44 + XXY
C. Trisomy 18
D. Trisomy 21
11.Which one of the following cell structure is involved in the synthesis of lipids?
A. Endoplasmic Reticulum
B. Golgi Complex
C. Centriole
D. Endoplasmic Reticulum
12.Monosaccharides are major components of:
A. DNA, ATP, Ribulose bisphosphate and Cysteine
B. DNA, NAD and Insulin
C. DNA, NADP, ATP and Ribulose bisphosphate
D. DNA, ATP, Ribulose bisphosphate and Cysteine
13.Blood group antigen contains:
A. Glycoproteins
B. Phospholipids
C. Glycolipids
D. Glycoproteins
14.Myosin is a __________ type of protein.
A. Intermediate
B. Simple
C. Globular
D. Intermediate
15.Which one of the following is an example of unsaturated fatty acid?
A. Butyric Acid
B. Oleic Acid
C. Palmitic Acid
D. Butyric Acid
16.Number of base pairs in one turn of DNA is:
A. 10
B. 2
C. 34
D. 10
17.The lymph vessel of villi is called:
A. Epithelium
B. Afferent lymph vessel
C. Adrenals
D. Epithelium
18.Right atrium is separated from right ventricle by:
A. Bicuspid Valve
B. Semilunar Valve
C. Tricuspid Valve
D. Bicuspid Valve
19.The flaps of tricuspid valves are attached to muscular extensions of right ventricle known as:
A. Smooth Muscles
B. Papillary Muscles
C. Intercostal Muscles
D. Smooth Muscles
20.One complete heart beat consists of one systole and one diastole and lasts for about:
A. 0.8 sec
B. 0.2 sec
C. 0.4 sec
D. 0.8 sec
21.The heart beat cycle starts when electric impulses are generated from;
A. AV Node
B. SV Node
C. SA Node
D. AV Node
22.About 70-85% CO2 in blood is carried:
A. As carboxylase myoglobin
B. With proteins in plasma
C. Freely as CO2
D. As carboxylase myoglobin
23.Those nephrons which are present along the border of the cortex and medulla are called:
A. Juxtamedullary nephrons
B. Cortical nephrons
C. Internal nephrons
D. Juxtamedullary nephrons
24.When water is in short supply, increased water retention occurs through the:
A. Cortical nephrons
B. Proximal Convoluted Tubule
C. Juxtamedullary nephrons
D. Cortical nephrons
25.In nephrons, counter-current multiplier occurs at:
A. Loop of Henle
B. Collecting Duct
C. Bowman’s Capsule
D. Loop of Henle
26.Ascending loop of Henle does not allow outflow of:
A. Na+ ions
B. K+ ions
C. Cl― ions
D. Na+ ions
27.A larger quantity of dilute urine is produced in diabetes insipidus. This disease is due to the deficiency of:
A. Antidiuretic Hormone
B. Aldosterone
C. Thyroxine
D. Antidiuretic Hormone
28.Water and sodium ions are reabsorbed in:
A. Urinary Bladder and Urethra
B. Ureter
C. Adrenal Cortex
D. Urinary Bladder and Urethra
29.Which disease is responsible for dementia (memory loss)?
A. Parkinson’s Disease
B. Alzheimer’s Disease
C. Epilepsy
D. Parkinson’s Disease
30.Neurotransmitter secreted at synapse outside the central nervous system is:
A. Dopamine
B. Polypeptide
C. Androgen
D. Dopamine
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