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 971

Respiratory pigment is absent from the circulatory fluid of a:

  1. Earthworm
  2. Cockroach
  3. Fish
  4. Mammal
Show AnswerHide Answer

Correct answer: B

Cockroach

The correct answer is Cockroach.

Biology · Question 972

The heart of a fish works as part of a:

  1. Single circuit
  2. Double circuit
  3. Both single and double circuit
  4. Neither single nor double circuit
Show AnswerHide Answer

Correct answer: A

Single circuit

The correct answer is Single circuit.

Biology · Question 973

In which vertebrate does the heart not receive oxygenated blood?

  1. Frog
  2. Fish
  3. Snake
  4. Man
Show AnswerHide Answer

Correct answer: B

Fish

The correct answer is Fish.

Biology · Question 974

The bicuspid (mitral) valve lies between the:

  1. Right ventricle and pulmonary artery
  2. Left atrium and left ventricle
  3. Right atrium and right ventricle
  4. Pulmonary veins and left atrium
Show AnswerHide Answer

Correct answer: B

Left atrium and left ventricle

The correct answer is Left atrium and left ventricle.

Biology · Question 975

Which ventricle has the thicker wall?

  1. Left ventricle
  2. Right ventricle
  3. Both have equally thick walls
  4. The right ventricle is thicker
Show AnswerHide Answer

Correct answer: A

Left ventricle

The correct answer is Left ventricle.

Biology · Question 976

Which arteries are the first pair to arise from the aorta?

  1. Iliac arteries
  2. Coronary arteries
  3. Hepatic artery
  4. Renal arteries
Show AnswerHide Answer

Correct answer: B

Coronary arteries

The correct answer is Coronary arteries.

Biology · Question 977

The relaxed phase of the heart chambers is called:

  1. Diastole
  2. Systole
  3. Atrial systole
  4. Ventricular systole
Show AnswerHide Answer

Correct answer: A

Diastole

The correct answer is Diastole.

Biology · Question 978

The force with which blood pushes against blood-vessel walls is called:

  1. Blood pressure
  2. Hypertension
  3. Osmotic potential
  4. Tension
Show AnswerHide Answer

Correct answer: A

Blood pressure

The correct answer is Blood pressure.

Biology · Question 979

In which group is the excretory system structurally associated with the digestive tract?

  1. Vertebrates
  2. Earthworm
  3. Planaria
  4. Insects
Show AnswerHide Answer

Correct answer: D

Insects

The correct answer is Insects.

Biology · Question 980

Which compound acts as the initial carrier in the urea cycle?

  1. Ornithine
  2. Citrulline
  3. Arginine
  4. None of these
Show AnswerHide Answer

Correct answer: A

Ornithine

The correct answer is Ornithine.