UHS MCAT Biology MCQ's with Explanation

MCAT stands for Medical College Entrance Test, which is conduct by UHS for all Public sector Medical Colleges of Punjab once in a year. This test is mandatory for all those who want to take admission in public sector medical colleges of Punjab. This test is conducted by University of Health Sciences in Punjab. Every year thousands of students apply for this test but due to limitation of seats only few among them can get admission.
MCAT test consists 220 MCQ’s including 88 Biology, 58 chemistry, 44 Physics and 30 English MCQ’s. It is a very tough test to pass, you have to work very hard for it. And for good preparation you can visit Pakprep.com where we have more than 15,000+ MCQ’s solved with explanation and also MOCK test for MCAT. To start your preparation for MCAT Click here.
Here we are going to show you some of the sample questions for MCAT test preparation with explanation.

Punjab UHS MCAT Test Preparation
MCQ’s Questions from  Introduction to Biology:
The study of how H1N1 virus is transmitted is done under which branch of biology?

  • Answer A :Microbiology
  • Answer B :Molecular biology
  • Answer C :Parasitology
  • Answer D :Biotechnology

Correct: C
Reason: Parasitology deals with the study of parasites their structure, mode of transmission, life histories etc.
Viruses are obligate intracellular parasites because they cannot thrive without their host. Viruses have shown an intimate relationship with their host where they use host machinery to replicate and propagate in nature.
MCQ’s Questions from Cell Biology:
Which of the following in the endoplasmic reticulum is involved in the synthesis of proteins?

  • Answer A :Rough endoplasmic reticulum
  • Answer B :Smooth endoplasmic reticulum
  • Answer C :Cisternae
  • Answer D :All of the above

Correct: A
Reason: Only rough endoplasmic reticulum is involved in the synthesis of proteins. Smooth endoplasmic reticulum plays a role in transport of material from one part to the other part of the cell.
Mehreen Qasim, AMC (2016)
MCQ’s Questions from Biological Molecules :
Natural monosaccharide contain how many carbon atoms?

  • Answer A : 3-5
  • Answer B : 4-8
  • Answer C : 3-7
  • Answer D : 5-13

Correct: C
Reason: In nature monosaccharaides with 3 to 7 carbon atoms are found. They are called triose (3) tetrose (4) pentose (5) hexose (6) and heptose (7).

MCQ’s Questions from Enzymes
An enzyme with its prosthetic group removed is called?

  • Answer A : Co-enzyme
  • Answer B : Holoenzyme
  • Answer C : Apoenzyme
  • Answer D : Activator

Correct: C
Reason: Enzymes that require a cofactor but do not have one bound are called apoenzymes or apoproteins. An apoenzyme together with its cofactor(s) is called a holoenzyme (this is the active form). Most confactors are not covalently attached to an enzyme, but are very tightly bound. However, organic prosthetic groups can be covalently bound.
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