Sindh MDCAT Re-Conduct 2023 Paper

101- The largest internal organ in the human body is:

A. Liver
B. Skin
C. Heart
D. Brain

Answer : A. Liver

102- Myosin filaments are surrounded by:

A. Intermediate filaments
B. Tropomyosin filament
C. Actin filament
D. Troponin filament

Answer : C. Actin filament

103- If children have blood groups A, B, AB, or O, it suggests that:

A. Both parents have blood group A
B. Both parents have blood group B
C. One parent has blood group AB, and the other parent has blood group O
D. One parent gave heterogeneous A, and the other parent has heterogeneous B

Answer : D. One parent gave heterogeneous A, and the other parent has heterogeneous B

104- The spindle shape in trochoids is given by:

A. Oblique transfer wall
B. Straight transfer wall,
C. Diagonal transfer wall
D. Perpendicular transfer wall

Answer : A. Oblique transfer wall

105- The first barrier to pathogens is:

A. Mucous membrane
B. Epidermis
C. Dermis
D. Hypodermis

Answer : B. Epidermis

106- The transmission of hepatitis B and hepatitis C primarily occurs through:

A. Contaminated blood and blood products
B. Sexual contact
C. Contaminated food and water
D. Airborne droplets

Answer : A. Contaminated blood and blood products

107- Pyruvate conversion to a 3-carbon molecule is associated with:

A. Krebs cycle
B. Calvin cycle
C. Electron transport chain
D. Glycolysis

Answer : D. Glycolysis

108- The statement that “electrons revolve around the nucleus and are situated at fixed distances from the nucleus with definite energy” is associated with:

A. Werner Heisenberg
B. Neil Bohr
C. James Clerk Maxwell
D. Erwin Schrödinger

Answer : B. Neil Bohr

109- The wave that has the highest penetrating power is:

A. Ultraviolet waves
B. X-rays
C. Infrared waves
D. Gamma waves

Answer : D. Gamma waves

110- A typical monocot seed does not have:

A. Parallel venation
B. Cotyledons
C. Vascular bundles scattered,
D. Spathes

Answer : C. Cotyledons

111- The pair of vocal cords responsible for producing sound is found in:

A. Bronchi
B. Larynx
C. Trachea
D. Pharynx

Answer : B. Larynx

112- The conversion of a straight chain to a branched chain is known as:

A. Reforming
B. Isomerization
C. Hydrolysis
D. Polymerization

Answer : A. Reforming

113- Petrol (Gasoline) is a mixture of:

A. Methane and ethane
B. Butane and propane
C. Octane and nonane
D. Hexane and heptane

Answer : D. Hexane and heptane

114- Acetylene, on passing through a red-hot tube in the presence of which substance, forms benzene ?

A. Uncatalyzed benzene
B. Nickel
C. Palladium
D. Catalyst benzene

Answer : B. Nickel

115- Methanol is commonly referred to as:

A. Green alcohol
B. Blue gas
C. Wood spirit
D. Fire water

Answer : C. Wood spirit

116- A positively charged oxygen ion bound with other atoms or groups of atoms is known as:

A. Oxygen cation
B. Oxide ion
C. Oxygen radical
D. Oxinium ion

Answer : D. Oxinium ion

117- The statement “Diffusion of gas is inversely proportional to the square root of density at constant temperature and pressure” is known as:

A. Grahams Law
B. Boyle’s Law
C. Avogadro’s Law
D. Charles’s Law

Answer : A. Grahams Law

118- The technology used in TVs and computers that involves the use of ionized gases is known as:

A. Plasma
B. CRT (Cathode Ray Tube)
C. LCD (Liquid Crystal Display)
D. LED (Light Emitting Diode)

Answer : A. Plasma

119- The phenomenon of a free-falling drop of water maintaining a spherical shape is attributed to:

A. Viscosity
B. Capillarity
C. Surface tension
D. Cohesion

Answer : C. Surface tension

120- Which of the following types of solids possesses the characteristics of malleability, ductility, electrical conductivity, and thermal conductivity ?

A. Ionic solids
B. Metallic solids
C. Covalent solids,
D. Ionic solids

Answer : B. Metallic solids

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