Solved Past Papers MCQs of MDCAT for the preparation of Medical and Dental College Admission Test and other medical tests.
BIOLOGY
Q.151 Book lungs are present in arthropods for exchange of gases in class:
A) Crustacea C) Myriapoda
B) Insecta D) Arachnida
Q.152 Larvae of which group are similar to chordates?
A) Echinodermata C) Arthropoda
B) Annelida D) Nematoda
Q.153 Type of respiration which involves step by step breakdown of carbon chain molecules in the cell is called:
A) External respiration C) Pulmonary respiration
B) Cellular respiration D) Cutaneous respiration
Q.154 Instrument which is used to measure relative abilities of different pigments to absorb different wavelengths of light is called:
A) Spectrometer C) Barometer
B) Photometer D) Spectrophotometer
Q.155 End products of yeast fermentation, bacterial fermentation and anaerobic respiration are
A) Citric acid, lactic acid, carbon dioxide and water C) Ethyl alcohol, lactic acid, carbon dioxide and water
B) Ethyl alcohol, citric acid and carbon dioxide D) Methanol, lactic acid and citric acid
Q.156 In human beings, what is the function of amylase in digestion?
A) Digestion of triglycerides C) Digestion of all types of food
B) Digestion of lipids D) Digestion of carbohydrates
Q.157 Where is the ileocolic sphincter located in your body?
A) At the junction of esophagus and stomach C) At the junction of ileum and large intestine
B) At the junction of stomach and small intestine D) At the junction of small intestine and large intestine
Q.158 The term which is employed to the loss of appetite due to fear of becoming obese is
A) Obesity C) Dyspepsia
B) Anorexia nervosa D) Bulimia nervosa
Q.159 Which one of the following acts as functional unit of lungs in man?
A) Air sac C) Trachea
B) Larynx D) Bronchioles
Q.160 Which one of following factors is directly proportional to oxygen carrying capacity of haemoglobin?
A) Carbon dioxide C) pH
B) Temperature D) Light
Q.161 Expiration in human beings is carried out by
A) Contraction of lungs C) Relaxation of intercostal and diaphragm muscles
B) Contraction of intercostal membrane D) Contraction of diaphragm muscles
Q.162 Which one of the following is a precursor of steroid hormones?
A) Glycerol C) Amino acids
B) Sterol D) Cholesterol
Q.163 Granulocytes or white blood cells are produced in
A) Lymph nodes C) Tonsils
B) Red bone marrow D) Spleen
Q.164 Which one of the following statements best describes the function of sinoatrial node?
A) It sends out electrical impulses to atrial muscles causing both atria to contract.
B) It consists of small number of diffusely oriented cardiac fibres
C) It sends out electrical impulses to ventricular muscles causing both ventricles to contract
D) It is present at upper end of left atrium.
Q.165 The flow of lymph in lymphatic vessels is maintained by:
A) Heart, activity of smooth muscles and valves
B) Activity of skeletal muscles, heart and breathing movements
C) Breathing movements, activity of skeletal muscles and valves
D) Exercise, breathing movements and heart
Q.166 Metabolic waste from metabolism of nucleic acid is
A) Uric acid C) Urea
B) Creatine D) Creatinine
Q.167 The central metabolic station and clearing house of a body is
A) Liver C) Nephron
B) Kidney D) Glomerulus
Q.168 The muscles that control urine in bladder are known as
A) Striated muscles C) Sphincter muscles
B) Smooth muscles D) Circular muscles
Q.169 The living cells of cartilage are called
A) Chrondrocytes C) Ostecytes
B) Osteoblasts D) Osteoclasts
Q.170 The disease which causes immobility and fusion of vertebral joints is
A) Osteomalacia (soft bones) C) Arthritis
B) Disc slip D) Spondylosis
Q.171 During muscle contraction
A) I-band shortens C) Actin filaments shorten
B) Myosin filaments shorten D) Z-line disappears
Q.172 Hormones are the organic compounds of varying structural complexity. Which of the following is not a function or property of these compounds?
A) They initiate new biochemical reactions C) They may be proteins
B) They are poured directly into blood D) They affect target cells
Q.173 Reflexes and instincts type of behaviours respond to which combination /s?
A) Biological rhythms, territorial, courtship and development
B) The responses that do produce same result in different conditions
C) Aggression, mating and altruism
D) The responses that are predetermined like differentiation.
Q.174 A typical neuron at rest
A) Is more positive outside than inside C) Has no charge on either side
B) Is more negative outside than inside D) has an equal charge on either side
Q.175 The first cells produced by the repeated cell division of germinal epithelium of testis are
A) Interstitial cells C) Secondary spermatocytes
B) Spermatogonia D) Spermatids
READ MORE:
- Solved Past Papers MCQs of MDCAT 1
- Solved Past Papers MCQs of MDCAT 2
- Solved Past Papers MCQs of MDCAT 4
