80 Important Biology Solved MCQS for PMC MDCAT Entry Test
Q.1 Book lungs are present in arthropods for exchange of gases in class:
Arachnida
Q.2 Larvae of which group are similar to chordates?
Echinodermata
Q.3 Type of respiration which involves step by step breakdown of carbon chain molecules in the cell is called:
Cutaneous respiration
Q.4 Instrument which is used to measure relative abilities of different pigments to absorb different wavelengths of light is called:
Photometer
Q.5 End products of yeast fermentation, bacterial fermentation and anaerobic respiration are
Ethyl alcohol, lactic acid, carbon dioxide and water
Q.6 In human beings, what is the function of amylase in digestion?
Digestion of carbohydrates
Q.7 Where is the ileocolic sphincter located in your body?
At the junction of ileum and large intestine
Q.8 The term which is employed to the loss of appetite due to fear of becoming obese is
Obesity
Q.9 Which one of the following acts as functional unit of lungs in man?
Air sac
Q.10 Which one of following factors is directly proportional to oxygen carrying capacity of haemoglobin?
pH
Q.11 Expiration in human beings is carried out by
Relaxation of intercostal and diaphragm muscles
Q.12 Which one of the following is a precursor of steroid hormones?
Cholesterol
Q.13 Granulocytes or white blood cells are produced in
Red bone marrow
Q.14 Which one of the following statements best describes the function of sinoatrial node?
It sends out electrical impulses to atrial muscles causing both atria to contract
Q.15 The flow of lymph in lymphatic vessels is maintained by:
Breathing movements, activity of skeletal muscles and valves
Q.16 Metabolic waste from metabolism of nucleic acid is
Uric acid
Q.17 The central metabolic station and clearing house of a body is
Liver
Q.18 The muscles that control urine in bladder are known as
Sphincter muscles
Q.19 The living cells of cartilage are called
Chrondrocytes
Q.20 The disease which causes immobility and fusion of vertebral joints is
Spondylosis
Q.21 During muscle contraction
I-band shortens
Q.22 Hormones are the organic compounds of varying structural complexity. Which of the following is not a function or property of these compounds?
They initiate new biochemical reactions
Q.23 Reflexes and instincts type of behaviours respond to which combination /s?
Aggression, mating and altruism
Q.24 A typical neuron at rest
A) Is more positive outside than inside
Q.25 The first cells produced by the repeated cell division of germinal epithelium of testis are
Spermatogonia
Q.26 Which of the following sequence is correct?
FSH – Estrogen – LH – Progesterone
Q.27 Which chromosomal abnormality in humans causes aggressive and antisocial behavior?
XYY
Q.28 Grey equatorial cytoplasm produces
Notochord and neural tube
Q.29 Sickle cell Anaemia is an example of which type of chromosomal defect?
Point mutation
Q.30 The karyotype of an individual is ________ of chromosomes.
Number and types
Q.31 The process of replication of DNA begins at
One or more places where there is a specific sequence of nucleotides
Q.32 Amino acid attaches at which site of RNA
3’-site with terminal OH
Q.33 Microtubules of spindle fibres are composed of a protein called
Tubulin
Q.34 The kinetochore fibres contract and spindle or pole fibres elongate during
Anaphase I
Q.35 Cell death due to tissue damage is called
Necrosis
Q.36 When a disease is transmitted directly from an affected father to his son, it is called:
Y-linked
Q.37 Epistasis is a relationship between:
Two different genes at different loci
Q.38 Gene for albinism in man is present on chromosome number:
11
Q.39 Gene can be synthesized in laboratory from messenger RNA by using:
Reverse transcriptase
Q.40 Antibiotic resistance gene for tetracycline and ampicillin are present in the plasmid
pBR 322
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