Skip to content
Independent guidance for Pakistan's healthcare students
Student forum · Coming soonAggregate calculator
Medical AdmissionPAKISTAN
Practice MDCAT

LEARN AT YOUR OWN PACE

MDCAT Question Bank

Think through each question, then reveal the answer and explanation.

Take a practice test →

Use the MDCAT Question Bank to study by subject and try each question yourself.
Click Show Answer to check the correct choice, then take a practice test when you’re ready.

1009 available questions

Biology · Question 911

Which is a common source of quick and inexpensive white meat?

  1. Chicken
  2. Broiler
  3. Cow
  4. Sheep
Show AnswerHide Answer

Correct answer: B

Broiler

The correct answer is Broiler.

Biology · Question 912

Which method could astronauts use to grow vegetables without soil?

  1. Tissue culture
  2. Hydroponic culture
  3. Biological control
  4. All of these
Show AnswerHide Answer

Correct answer: B

Hydroponic culture

The correct answer is Hydroponic culture.

Biology · Question 913

Which technique is used to preserve milk and milk products?

  1. Gene therapy
  2. Immunization
  3. Pasteurization
  4. Preventive measures
Show AnswerHide Answer

Correct answer: C

Pasteurization

The correct answer is Pasteurization.

Biology · Question 914

Replacing a defective gene with a normal gene is known as:

  1. Cloning
  2. Gene therapy
  3. Genetic engineering
  4. Chemotherapy
Show AnswerHide Answer

Correct answer: B

Gene therapy

The correct answer is Gene therapy.

Biology · Question 915

How many carbon atoms are present in one molecule of palmitic acid?

  1. 14
  2. 15
  3. 16
  4. 17
Show AnswerHide Answer

Correct answer: C

16

The correct answer is 16.

Biology · Question 916

During protein synthesis, amino acids are arranged in the sequence specified by instructions transcribed on:

  1. Transfer RNA
  2. Ribosomal RNA
  3. Messenger RNA
  4. DNA
Show AnswerHide Answer

Correct answer: C

Messenger RNA

The correct answer is Messenger RNA.

Biology · Question 917

If a non-protein component is covalently bonded to an enzyme, it is known as a:

  1. Cofactor
  2. Activator
  3. Coenzyme
  4. Prosthetic group
Show AnswerHide Answer

Correct answer: D

Prosthetic group

The correct answer is Prosthetic group.

Biology · Question 918

The substance on which an enzyme acts is known as the:

  1. Co-enzyme
  2. Activator
  3. Substrate
  4. Inhibitor
Show AnswerHide Answer

Correct answer: C

Substrate

The correct answer is Substrate.

Biology · Question 919

The catalytic activity of an enzyme is restricted to its:

  1. Substrate
  2. Active site
  3. A polypeptide chain
  4. All of these
Show AnswerHide Answer

Correct answer: B

Active site

The correct answer is Active site.

Biology · Question 920

Enzymes require what type of media for their action?

  1. Dry
  2. Aqueous
  3. Oily
  4. None of these
Show AnswerHide Answer

Correct answer: B

Aqueous

The correct answer is Aqueous.