MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 2501. |
Which of the following blood vessles has wide lumen |
| A. | Renal vein |
| B. | Post venacava |
| C. | Renal artery |
| D. | Right pulmonary artery |
| Answer» C. Renal artery | |
| 2502. |
The pace - setter in the heart is called |
| A. | Purkinje fibres |
| B. | SA - Node |
| C. | Papillary muscle |
| D. | AV - Node |
| Answer» E. | |
| 2503. |
In haemodialysis, patient’s blood is pumped from one of the arteries and mixing with X . Blood is purified and it is then pumped into vein of the patient after adding Y to it. X Y X Y |
| A. | Heparin , Anti heparin |
| B. | Prothrombin, Thrombin |
| C. | antiheparin , Heparin |
| D. | Prothrombin, Heparin |
| Answer» B. Prothrombin, Thrombin | |
| 2504. |
Which of the following statements is related to starling’s law of heart |
| A. | Greatar the stroke volume greater is the heart rate |
| B. | Greater the intial length of the cardiac muscle fibre, more the force of contraction of heart |
| C. | Greater the minute volume, greater is the heart rate |
| D. | Lesser the length of cardiac musle fibre greater is the force of contraction of heart |
| Answer» C. Greater the minute volume, greater is the heart rate | |
| 2505. |
The posterior venacava |
| A. | Divides into the hepataic portal veins |
| B. | Opens into the left auricle |
| C. | Commences at the kidney |
| D. | Begins at the hind end of abdomen |
| Answer» E. | |
| 2506. |
The diaphragm is supplied blood by |
| A. | Cardiac artery |
| B. | Phrenic artery |
| C. | Lingual artery |
| D. | Lumber artery |
| Answer» C. Lingual artery | |
| 2507. |
The artery can be distinguished from the vein in having |
| A. | Thicker walls |
| B. | More blood cells |
| C. | More plasma |
| D. | Larger cavity |
| Answer» B. More blood cells | |
| 2508. |
An artificial pace - maker is implanted subcutaneously and connected to the heart in patients |
| A. | Having 90 % blockage of the three main coronary arteries |
| B. | Having a very high blood pressure |
| C. | With irregularity in the heart rhythm |
| D. | Suffering from arteriosclerosis |
| Answer» D. Suffering from arteriosclerosis | |
| 2509. |
The structure of which of the following consist of a layer of single cell thickness |
| A. | Blood capillary |
| B. | Artery |
| C. | Venule |
| D. | Arteriole |
| Answer» B. Artery | |
| 2510. |
Blood vessels carrying blood from lungs to heart |
| A. | Pulmonary artery |
| B. | Pulmonary vein |
| C. | Carotid artery |
| D. | Coronary artery |
| Answer» C. Carotid artery | |
| 2511. |
Carotid artery carries |
| A. | Impure blood from brain |
| B. | Oxygenated blood to anterior region of body or to brain |
| C. | Impure blood to kidney |
| D. | Oxygenated blood to heart |
| Answer» C. Impure blood to kidney | |
| 2512. |
‘Heart of heart’ is |
| A. | SA - Node |
| B. | AV - Node |
| C. | Bundle of His |
| D. | Purkinje fibres |
| Answer» B. AV - Node | |
| 2513. |
Make the correct pairs. |
| A. | iii iv i ii |
| B. | iv iii i ii |
| C. | iii iv ii i |
| D. | iv iii ii i |
| Answer» D. iv iii ii i | |
| 2514. |
Iliac artery carries blood to the |
| A. | Lungs |
| B. | Ileum |
| C. | Hind limb |
| D. | Brain |
| Answer» D. Brain | |
| 2515. |
The pericardium and the pericardial fluid help in |
| A. | Protecting the heart from friction, shocks and keeps it moist |
| B. | Pumping the blood |
| C. | Receiving the blood from various parts of the body |
| D. | None of the above |
| Answer» B. Pumping the blood | |
| 2516. |
Cardiac output is determined by |
| A. | Heart rate |
| B. | Stroke volume |
| C. | Blood flow |
| D. | Both a & b |
| Answer» E. | |
| 2517. |
For reaching left side of heart, blood must pass through |
| A. | Liver |
| B. | Kidneys |
| C. | Lungs |
| D. | Brain |
| Answer» D. Brain | |
| 2518. |
Pace maker is |
| A. | Instrument for measuring heart beat |
| B. | Instrument for measuring pulse rate |
| C. | Auriculo - ventricular node that provides impulse for heart beat |
| D. | Sino - auricular node that provides impulse for heartbeat |
| Answer» E. | |
| 2519. |
Artificial pacemaker is usually implanted to correct the defect in |
| A. | AV node |
| B. | SA node |
| C. | Purkinje fibers |
| D. | Mitral valve |
| Answer» C. Purkinje fibers | |
| 2520. |
Which has the thickest walls ? |
| A. | Left ventricle |
| B. | Right ventricle |
| C. | Left auricle |
| D. | Right auricle |
| Answer» B. Right ventricle | |
| 2521. |
Find the matching pair : |
| A. | Lubb- sharp closure of AV valves at beginning of ventricular systole |
| B. | Dub - sudden opening of semilunar valves at the beginning of ventricular systole |
| C. | Pulsation of radial artery valves in blood vessels |
| D. | Initiation of heart beat - Purkinje fibers |
| Answer» D. Initiation of heart beat - Purkinje fibers | |
| 2522. |
In the heart of mammals the bicuspid valve is situated between |
| A. | Left auricle and left ventricle |
| B. | Post caval and right caval |
| C. | Right auricle and left auricle |
| D. | Right ventricle and pulmonary aorta |
| Answer» C. Right auricle and left auricle | |
| 2523. |
Systemic heart refers to |
| A. | The two ventricles together in humans |
| B. | The heart that contracts under stimulation from nervous system |
| C. | Left auricle and left ventricle in higher ventebrates |
| D. | Entire heart in lower vertebrates |
| Answer» D. Entire heart in lower vertebrates | |
| 2524. |
Pulmonary vein carries oxygenated blood from |
| A. | Heart to its walls |
| B. | Heart to lungs |
| C. | Lungs to heart |
| D. | Heart to all body parts |
| Answer» D. Heart to all body parts | |
| 2525. |
The beating of heart of man is heard on the left side because |
| A. | The left ventricle is toward the left side |
| B. | Both the ventricles are towards the left side |
| C. | Entire heart is on the left side |
| D. | The aorta is on the left side |
| Answer» E. | |
| 2526. |
Valves which allow blood from ventricles into arteries and not in opposite direction are |
| A. | Aortic valve and mitral valve |
| B. | AV valves and semilunar valves |
| C. | Bicuspid and tricuspid valves |
| D. | Semilunar valves and tricuspid valve |
| Answer» C. Bicuspid and tricuspid valves | |
| 2527. |
In circulatory system, valves occur in |
| A. | Heart and blood vessels of both vertebrates and invertebrates |
| B. | Both vertebrate and invertebrate hearts |
| C. | Vertebrate heart only |
| D. | Invertebrate heart only |
| Answer» B. Both vertebrate and invertebrate hearts | |
| 2528. |
Dub sound is produced during closure of |
| A. | Semilunar valves |
| B. | Bicuspid valve |
| C. | Tricuspid valve |
| D. | Both a & b |
| Answer» B. Bicuspid valve | |
| 2529. |
Prothrombin required for blood clotting is produced in |
| A. | Stomach |
| B. | Liver |
| C. | Spleen |
| D. | Pancreas |
| Answer» C. Spleen | |
| 2530. |
The auriculo ventricular node in human heart was discovered by |
| A. | Hiss |
| B. | Lewis |
| C. | Ringer |
| D. | William Harvey |
| Answer» C. Ringer | |
| 2531. |
Bundle of His is a network of |
| A. | Muscle fibres distributed throughout heart walls |
| B. | Muscle fibres found only in ventricle wall |
| C. | Nerve fibres distributed in ventricles |
| D. | Nerve fibres found throughout the heart |
| Answer» C. Nerve fibres distributed in ventricles | |
| 2532. |
In blood |
| A. | WBCs are more than RBCs |
| B. | RBCs are more than WBCs |
| C. | RBCs are less than platelets |
| D. | Platelets are less than WBCs |
| Answer» C. RBCs are less than platelets | |
| 2533. |
The blood returning to the heart from lungs via pulmonary vein has more |
| A. | RBC per ml of blood |
| B. | Haemoglobin per ml of blood |
| C. | Oxygen per ml of blood |
| D. | Nutrient per ml of blood |
| Answer» D. Nutrient per ml of blood | |
| 2534. |
Which one are granulocytes |
| A. | Neutrophils, basophils, lymphocytes |
| B. | Eosinophils, basophils, monocytes |
| C. | Basophils, monocytes, lymphocytes |
| D. | Neutrophils, eosinophils, basophils |
| Answer» E. | |
| 2535. |
Pericardial fluid is secreted by |
| A. | Myocardium |
| B. | Parietal peritoneum |
| C. | Visceral peritoneum |
| D. | None of the above |
| Answer» D. None of the above | |
| 2536. |
Purkinje’s fibres are special types of |
| A. | Muscle fibres located in heart |
| B. | Nerve fibres located in cerebrum |
| C. | Connective tissue fibers joining one bone to another bone |
| D. | Sensory fibers extending from retina into optic nerve |
| Answer» B. Nerve fibres located in cerebrum | |
| 2537. |
Pulse pressure is |
| A. | Diastolic pressure |
| B. | Systolic pressure |
| C. | Difference between b and a |
| D. | Pressure in great veins |
| Answer» D. Pressure in great veins | |
| 2538. |
Lymph consists of |
| A. | RBCs, WBCs and plasma |
| B. | RBCs, proteins and platelets |
| C. | Alll components of blood except RBCs and some proteins |
| D. | WBCs and serum |
| Answer» E. | |
| 2539. |
The sequence of cardiac cycle is |
| A. | Atrial systole - ventricular systole - joint diastole |
| B. | Atrial diastole - Atrial systole - ventricular diastole |
| C. | Atrial systole - ventricular diastole - ventricular systole |
| D. | ventricular diastole - ventricular systole - Atrial systole |
| Answer» B. Atrial diastole - Atrial systole - ventricular diastole | |
| 2540. |
Which of the following step is necessary part of DNA recombination technology ? |
| A. | Insertion of DNA fragment into vector |
| B. | Insertion of vector into Bacteria |
| C. | multiplication of the clones containing the recombination molecule |
| D. | All the above |
| Answer» D. All the above | |
| 2541. |
Which prosess is involved in making bread cheese, beer and wine ? |
| A. | Respiration / hydrolysis |
| B. | Degradation |
| C. | Fermentation |
| D. | Decomposition |
| Answer» D. Decomposition | |
| 2542. |
Contraction of right ventricle pumps blood into |
| A. | Dorsal aorta |
| B. | Pulmonary artery |
| C. | Pulmonary vein |
| D. | Coronary artery |
| Answer» C. Pulmonary vein | |
| 2543. |
Plasmids are autonomously replicating mini chromosomes found in...... |
| A. | Bachterio phage lambda |
| B. | Leishmania donovani |
| C. | Escherichia coli |
| D. | para moecium caudatum |
| Answer» D. para moecium caudatum | |
| 2544. |
During which of the following techniques host cells are exposed to pulse of high voltage current ? |
| A. | Electroporation |
| B. | Particle Bombard ments |
| C. | Micro injection |
| D. | lipofection |
| Answer» B. Particle Bombard ments | |
| 2545. |
When the number of genes increases in response to some signal the effect is called..... |
| A. | gene dosage |
| B. | Gene pool |
| C. | gene amplification |
| D. | gene freaquency |
| Answer» D. gene freaquency | |
| 2546. |
EFB stands for ........ |
| A. | European Foudation of Biotechnology |
| B. | European Foundation of Biology |
| C. | European Foundation of Biotechnology |
| D. | European Foundation of Biology |
| Answer» D. European Foundation of Biology | |
| 2547. |
Improvement of genotype of an organism by addition of some foreigm gene is...... |
| A. | genetic diversity |
| B. | gene handing |
| C. | tissue cutlure |
| D. | genetic engineering |
| Answer» B. gene handing | |
| 2548. |
Bam H I, ECo R I, Sal I are the types of |
| A. | restriction endonucleasses |
| B. | restraction endoxidases |
| C. | restriction exonucleases |
| D. | restriction polymerases |
| Answer» D. restriction polymerases | |
| 2549. |
The sequence of DNA that reads the same backward and forward across the double strand is........ |
| A. | Recipient sequence |
| B. | palindromic sequence |
| C. | Replicate sequence |
| D. | origin sequence |
| Answer» C. Replicate sequence | |
| 2550. |
Technology which uses living components for the welfare of human being is..... |
| A. | Biology |
| B. | Botany |
| C. | Bioinformatics |
| D. | Biotechnology |
| Answer» E. | |