Sindh MCAT Past Papers 2023

 What is the volume of blood pumped per minute by the left ventricle into the system circuit called:

a)Ventricular system
b)Atrial system
c)Cardiac output
d)Systole

 Carolus Linnaeus was the believer of:

a)Special creation
b)Inheritance of acquired characters
c)Catastrophism
d)Natural selection

The artificial selection in breeding provides a strong evidence for evolution. What does this term mean?

a)Mutation
b)Vestigial organs
c)Domestication
d)Homology

Which of the following is a good evidence of an evolutionary pathway leading from reptiles to birds?

a)Archaeopteryx
b)Mammals
c)Arthropods
d)Fishes

 Chemical substance that can react with an enzyme faster than real substrate and without produce a product is:

a)Activator
b)Co enzyme
c)Accelerator
d)Inhibitor

The structure of an enzyme is altered by:

a)Competitive inhibition
b)Reversible inhibition
c)Irreversible inhibition
d)Non competitive inhibition

Penicillin blocks the active sites of an enzyme that many bacteria use in making cell wall. It is an example of:

a)Competitive inhibition
b)Feedback inhibition
c)Non competitive inhibition
d)None of these

What is the optimum pH of pepsin in the stomach?

a)25
b)1.4
c)3
d)2

Evolutionary progress towards formation of organ system in Cnidarians includes development of enteron and:

a)Symmetry
b)Rudimentary network of nerves
c)Cellular organization
d)Cnidocytes

 Which of the following describes coral reefs used by Hakeem in preparing eastern medicines?

a)Emerald
b)Marjan
c)Ruby
d)Diamond

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