USMLE Step 1 Mock Test 14 - Online MCQ Exam

Citric acid cycle location:

1 Mark(s)

Your Answer:

Cytoplasm Cytoplasm
Matrix Matrix
Stroma Stroma
Thylakoid Thylakoid

Trotter’s syndrome involves_____________?

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Your Answer:

Pharynx Pharynx
Oropharynx Oropharynx
Larynx Larynx
Nasopharynx Nasopharynx

Chemically, RNA is (i) reactive and (ii) stable as compared to DNA.

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Your Answer:

A) (i) equally, (ii) equally A) (i) equally, (ii) equally
B) (i) less, (ii) more B) (i) less, (ii) more
C) (i) more, (ii) less C) (i) more, (ii) less
D) (i) more, (ii) equally (i) more, (ii) less

The synonym of "elated" is:

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Your Answer:

Depressed Depressed
Overjoyed Overjoyed
Sad Sad
Angry Angry

The diaphragm is a:

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Your Answer:

Bone Bone
Cartilage Cartilage
Ligament Ligament
Muscular sheet below lungs Muscular sheet below lungs

Primary succession begins on:

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Your Answer:

Existing soil Existing soil
Bare rock or new substrate Bare rock or new substrate
Disturbed forest Disturbed forest
Grassland Grassland

Bacteria can attach with their substrate by the help of___________?

1 Mark(s)

Your Answer:

capsule capsule
legs legs
body body
hands hands

Bacteria protect by chemical sterilization by__________?

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Your Answer:

iodine iodine
chlorine chlorine
water water
a and b both a and b both

Anodizing is:

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Your Answer:

Oxide layer formation Oxide layer formation
Electroplating Electroplating
Cathodic protection Cathodic protection
Corrosion Corrosion

Time taken by a body to complete one vibration is:

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Your Answer:

amplitude amplitude
frequency frequency
time period time period
vibration vibration

Colostrum provides the infant with:

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Your Answer:

Active immunity Active immunity
Passive immunity Passive immunity
Innate immunity Innate immunity
Cellular immunity Cellular immunity

Which of the following is carcinoma of the skin spreads by local invasion and has no tendency to metastasise ?

1 Mark(s)

Your Answer:

Malignant melanoma Malignant melanoma
Basal cell carcinoma Basal cell carcinoma
Fibrosarcoma Fibrosarcoma
Leukoplakia Leukoplakia

Which form of moths effectively camouflaged___________?

1 Mark(s)

Your Answer:

black black
gray gray
white white
yellow yellow

Contraction of circular muscle transform prostomium into conical wedge__________?

1 Mark(s)

Your Answer:

1 mm diameter tip 1 mm diameter tip
3mm diameter tip 3mm diameter tip
5mm diameter tip 5mm diameter tip
6mm diameter tip 6mm diameter tip

The dilated part of alimentary canal is known as:

1 Mark(s)

Your Answer:

kidneys kidneys
liver liver
stomach stomach
lungs lungs

Mass of solute dissolved in 100g of a solution refers to:

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Your Answer:

percentage of solution percentage of solution
molarity of solution molarity of solution
molality of solution molality of solution
none of above none of above

Which of the following is transferred to Realisation Account ?

1 Mark(s)

Your Answer:

A) Balance of Profit Account A) Balance of Profit Account
B) Balance of Profit & Loss Account B) Balance of Profit & Loss Account
C) Amount realised on sale of assets C) Amount realised on sale of assets
D) Reserves D) Reserves

Annellus meaning is__________?

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Your Answer:

ring ring
hair hair
network network
hand hand

Adrenocorticotropic Hormone (ACTH) acts on the adrenal cortex to release…?

1 Mark(s)

Your Answer:

Cortisol Cortisol
Testosterone Testosterone
Aldosterone Aldosterone
All of these All of these

I ^. (j^ x k^) is equal to______________?

1 Mark(s)

Your Answer:

1 1
i^ i^
j^ j^
k^ k^

UUA, UAG And UGA all are__________?

1 Mark(s)

Your Answer:

stop signal stop signal
starting starting
contribution contribution
mid signal mid signal

Secretion of too much acid in the stomach causes:

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Your Answer:

nausea nausea
vomit vomit
indigestion indigestion
cancer cancer

Acetone ($\text{CH}_3\text{COCH}_3$) does not give a positive:

1 Mark(s)

Your Answer:

Tollen's test (silver mirror) Tollen's test (silver mirror)
Solubility test Solubility test
Combustion test Combustion test
Density test Density test

The lower layer of the thermosphere is:

1 Mark(s)

Your Answer:

ionosphere ionosphere
exosphere exosphere
mesosphere mesosphere
stratosphere stratosphere

Which of the following represents the serologic evidence of recent Hepatitis B virus infection during window period ?

1 Mark(s)

Your Answer:

HBs Ag HBs Ag
IgM anti – HBc IgM anti – HBc
Anti HBs Anti HBs
None of the above None of the above

A steel wire of length 2m and area $1 cm^2$ is stretched by 2mm. If $Y = 2 \times 10^{11} N/m^2$, the force required is:

1 Mark(s)

Your Answer:

$2 \times 10^4 N$ $2 \times 10^4 N$
$4 \times 10^4 N$ $4 \times 10^4 N$
$2 \times 10^3 N$ $2 \times 10^3 N$
$10^5 N$ $10^5 N$

The fraction change in the volume per kelvin change in temperature is equal to:

1 Mark(s)

Your Answer:

coefficient of linear thermal expansion coefficient of linear thermal expansion
temperature coefficient of volume expansion
pressure expansion pressure expansion
coefficient of contraction coefficient of contraction

Ball and socket joint example is:

1 Mark(s)

Your Answer:

Knee Knee
Elbow Elbow
Shoulder Shoulder
Ankle Ankle

What is the pH of tomato juice?

1 Mark(s)

Your Answer:

4 4
7 7
8 8
9 9

Which of the following are living conducting tissue __________?

1 Mark(s)

Your Answer:

Xylem Xylem
Phloem Phloem
Primary xylem Primary xylem
Secondary xylem Secondary xylem

What is the color of precipitates of AgCl?

1 Mark(s)

Your Answer:

Yellow Yellow
Green Green
Blue Blue
White White

A radiograph of the mandibular anterior teeth in a patient reveals radiolucencies above the apices of right lateral and central incisors. No restorations or cavities are present There is no pain or swelling and the pulps are vital. The diagnosis is_________________?

1 Mark(s)

Your Answer:

Periapical granuloma Periapical granuloma
Cementoblastoma Cementoblastoma
Radicular cyst Radicular cyst
Chronic abscess Chronic abscess

Water vascular system of sea cucumbers is filled with__________?

1 Mark(s)

Your Answer:

Water Water
Gases Gases
Coelomic fluid Coelomic fluid
Blood Blood

Which of the following is/are true when milk changes into curd? (i) Its state is changed from liquid to semi solid. (ii) It changes colour. (iii) It changes taste. (iv) The change cannot be reversed. Choose the correct option from below:

1 Mark(s)

Your Answer:

A) (i) and (ii) are correct A) (i) and (ii) are correct
B) (ii) and (iii) are correct B) (ii) and (iii) are correct
C) (i), (iii) and (iv) are correct C) (i), (iii) and (iv) are correct
D) (i) to (iv) are correct 5. What is ignition temperature? (i), (iii) and (iv) are correct

Cytotoxic T cells (CD8):

1 Mark(s)

Your Answer:

Coordinate Coordinate
Direct attack Direct attack
Infected Infected
Cancer cells Cancer cells

Pedology is study of ___________?

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Your Answer:

Birds Birds
Languages Languages
Soils Soils
None of these None of these

For which position maximum blood pressure in the body have the smallest value ?

1 Mark(s)

Your Answer:

Standing straight Standing straight
Sitting on chair Sitting on chair
Sitting on ground Sitting on ground
Laying horizontally Laying horizontally

Work done to rotate a dipole from stable to unstable equilibrium is:

1 Mark(s)

Your Answer:

$pE$ $pE$
Zero Zero
$2pE$ $2pE$
$pE/2$ $pE/2$

The cholesterol is present in the lipid bilayer of:

1 Mark(s)

Your Answer:

sporophyte sporophyte
gametophyte gametophyte
prokaryotic cells prokaryotic cells
eukaryotic cells eukaryotic cells

White radiating lines can be observed in case of lesions of:___________?

1 Mark(s)

Your Answer:

Lichen planus Lichen planus
Erythema multiforme Erythema multiforme
Pemphigus Pemphigus
Leukoplakia Leukoplakia

Protean sequence develop in evolutionary years___________?

1 Mark(s)

Your Answer:

10 year 10 year
millions years millions years
20 years 20 years
minimum minimum

IgG is:

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Your Answer:

Least abundant Least abundant
On surfaces On surfaces
Most abundant in blood Most abundant in blood
In secretions In secretions

Coordination compounds contain a central metal atom bonded to:

1 Mark(s)

Your Answer:

Only anions Only anions
Only cations Only cations
Only neutral molecules Only neutral molecules
Ligands (molecules or ions) Ligands (molecules or ions)

Living fossil example is:

1 Mark(s)

Your Answer:

Limulus Limulus
Housefly Housefly
Mosquito Mosquito
Butterfly Butterfly

Where should your eye be positioned when reading a measurement on a scale?

1 Mark(s)

Your Answer:

A) To the left of the mark A) To the left of the mark
B) To the right of the mark B) To the right of the mark
C) Directly above the mark C) Directly above the mark
D) Below the mark D) Below the mark

Evaluating Your Answers

USMLE Step 1 Mock Test 14 : Question 1 of 45