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 251

Ribose is a pentose sugar (5-carbon) that contains:

  1. Aldehyde group
  2. Ketone group
  3. Carboxyl group
  4. Ester group
Show AnswerHide Answer

Correct answer: A

Aldehyde group

Biology · Question 252

Matastasis is a process where:

  1. One cell control activities of others
  2. one cell tranfers its activities to others
  3. one cell destoys other cells
  4. one cell transfers germs to another cell
Show AnswerHide Answer

Correct answer: B

one cell tranfers its activities to others

Biology · Question 253

Example of convergent evolution is:

  1. forelimbs of man and bat
  2. wings of birds and insects
  3. Darwins finches
  4. all of above
Show AnswerHide Answer

Correct answer: B

wings of birds and insects

Biology · Question 254

Which cell secrete flexible, elastic, non-living matrix collagen that surrounds the chondrocytes?

  1. Osteocytes
  2. Osteoclasts
  3. chondrocytes
  4. Osteoblasts
Show AnswerHide Answer

Correct answer: C

chondrocytes

Biology · Question 255

A single motor neuron and the muscle fibers it innervates are collectively called a:

  1. sensory unit
  2. motor unit
  3. Both A and B
  4. Cranial unit
Show AnswerHide Answer

Correct answer: B

motor unit

Biology · Question 256

In 1935 W.M. Stanley prepared an extract of:

  1. obacco mosaic virus (TMV)
  2. Human immunodeficiency virus (HIV)
  3. Flu virus
  4. Polio virus
Show AnswerHide Answer

Correct answer: A

obacco mosaic virus (TMV)

Biology · Question 257

The most abundant element present in human body is

  1. Sulphur
  2. nitrogen
  3. carbon
  4. manganese
Show AnswerHide Answer

Correct answer: C

carbon

Biology · Question 258

Alternation of generation is absent in which coelenterate?

  1. Obelia
  2. Jelly fish
  3. Hydra
  4. Sea anemone
Show AnswerHide Answer

Correct answer: C

Hydra

Biology · Question 259

Rh antigen was first studied in

  1. Monkey
  2. Man
  3. Dog
  4. Mouse
Show AnswerHide Answer

Correct answer: A

Monkey

Biology · Question 260

Cryptorchidism is a condition where?

  1. One of both testes are not developed
  2. One or both testes are not found
  3. One or both testes fail to descend into the scrotum
  4. none of these
Show AnswerHide Answer

Correct answer: C

One or both testes fail to descend into the scrotum