Solved Past Papers MCQs of MDCAT 1

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Solved Past Papers MCQs of MDCAT for the preparation of Medical and Dental College Admission Test and other medical tests.

 

BIOLOGY

 

Q.151 Which of the following receptors produce sensation of pain?

A) Mechanoreceptor. C) Chemoreceptors.

B) Nociceptors. D) Thermoreceptors.

 

Q.152 When your finger accidentally gets caught in a door, the pain message is sent to your brain through __________.

A) Homeostasis. C) Caffeine.

B) Sensory receptors. D) The medulla.

 

Q.153 Neck has ______ type of joint.

A) Ball and socket. C) Hinge.

B) Pivot. D) Fibrous.

 

Q.154 End product of hemoglobin break down is:

A) Creatinine. C) Hypoxanthin.

B) Bilirubin. D) Xanthin.

 

Q.155 In what direction, can a DNA polymerase work when catalyzing the addition of nucleotide monomers to build a strand of DNA?

A) From the 5′ toward the 3′ end of the new strand being assembled.

B) From the replication centers in two directions called replication forks.

C) From the 3′ to the 5′ end of the strand being assembled.

D) In both directions if DNA ligase is present.

 

Q.156 Which bond is the potential source of chemical energy for cellular activities?

A) C-N. C) C-H.

B) C-O. D) H-O.

 

Q.157 Sharks and rays are included in class:

A) Cyclostomata. C) Osteichthyes.

B) Chondrichthyes. D) Tetrapoda.

 

Q.158 In what stage of aerobic respiration are 2-carbon molecules oxidized completely to carbon dioxide?

A) Glycolysis. C) Krebs cycle.

B) ETC. D) Calvin cycle.

 

Q.159 Which of the following does not have specialized respiratory organs?

A) Hydra. C) Cockroach.

B) Birds. D) Both A and B.

 

Q.160 Humming birds belong to the category

A) Heterotherms. C) Ectotherms.

B) Endotherms. D) None of these.

 

Q.161 Syphilis is caused by

A) Neisseria gonorrhoeae. C) Treponema pallidum.

B) Cats worm. D) Herpes simplex.

 

Q.162 In moths’ male is __________

A) Heterogametic. C) Homogametic.

B) Dieogametic. D) Both B and C.

 

Q.163 When carbon dioxide pressure increases the capacity of haemoglobin to hold oxygen:

A) Increases many folds. C) Remains constant.

B) Decreases. D) Is doubled.

 

Q.164 The soluble part of the cytoplasm is termed as

A) Cisternae. C) Endocytosis.

B) Cytosol. D) Both A and B.

 

Q.165 Name the enveloped RNA virus that causes infusion hepatitis.

A) HBV. C) HCV.

B) HAV. D) None of these.

 

Q.166 In general, asexual reproduction is common in

A) Humans. C) Deuteromycota.

B) Basidiomycota. D) Basidiospores.

 

Q.167 Name the vertebrates which are without jaws.

A) Osteichthyes. C) Chondrichthyes.

B) Cyclostomata. D) None of these.

 

Q.168 The total inside capacity of lungs of adult human beings when fully inflated is

A) 5 ml. C) 500 ml.

B) 50 ml. D) 5000 ml.

 

Q.169 Which of the following belong to collenchyma cells?

A) Fibers. C) Sclereides.

B) Vessels. D) None of these.

 

Q.170 Which of the following promotes both leaf and fruit growths?

A) Auxins. C) Abscisic acid.

B) Gibberellins. D) Ethane.

 

Q.171 Name the external factor of growth in plants

A) Carbon dioxide. C) Hormones.

B) Water. D) Nutrition.

 

Q.172 The genes of blue opsin are present on

A) Autosome 9. C) Autosome 1.

B) Autosome 7. D) Autosome 3.

 

Q.173 The dew drops on tips of grass leaves is an example of

A) Infestation. C) Exudation.

B) Bleeding. D) Imbibition.

 

Q.174 Which of the following modifies proteins and lipids by adding carbohydrates?

A) Golgi Apparatus. C) Plasma membrane.

B) Polysome. D) None of these.

 

Q.175 Which of the following are spiral-shaped bacteria?

A) Cocci. C) Pseudomonas.

B) Bacilli. D) Vibrio.

 

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