MCQOPTIONS
Saved Bookmarks
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.
| 3751. |
Which type of WBCs are found in maximum number ? (CPMT-88, DPMT -96) |
| A. | Eosiophil |
| B. | Nutrophil |
| C. | Acidophil |
| D. | Monocyte |
| Answer» C. Acidophil | |
| 3752. |
Regulation and initiation of heartbeat is indicated by (karnataka - 94, CBSE- 95) |
| A. | AV Node - bundle of His muscule - SA node - purkinje fiber |
| B. | SA Node - purkinje fiber - AV Node - Bundle of His muscle |
| C. | Purkinje fiber - AV Node - SA node - Bundle of His muscle |
| D. | SA Node - AV Node - Bundle of His muscle - Purkinje fiber |
| Answer» E. | |
| 3753. |
What is pacemaker ? |
| A. | Instrument measuring Heartbeats |
| B. | Instrument measuring big arteries |
| C. | Atrio - ventricular node, which provides stimulation for heart beating |
| D. | Artificial syno - auricular node, which provides stimulation for heart beating |
| Answer» E. | |
| 3754. |
Where granular WBCs are produced ? (DPMT-95) |
| A. | Kidney |
| B. | Liver |
| C. | Small interstine |
| D. | Bone marrow |
| Answer» E. | |
| 3755. |
Which is the pacemaker heart ? (CBSC - 94) |
| A. | AV Node |
| B. | SA Node |
| C. | Purkinje fiber |
| D. | Bundle of His muscle |
| Answer» C. Purkinje fiber | |
| 3756. |
A and B in the figure indicate which state ? |
| A. | Ventricle systole, Atrium systole |
| B. | Ventricle diastole, Atrium diastole |
| C. | Filling of blood in ventricle, Atrium systole |
| D. | Ventricle systole, Blood flow out |
| Answer» D. Ventricle systole, Blood flow out | |
| 3757. |
Mention the name of A and B in the given figure : |
| A. | Right ventricle, Left ventricle |
| B. | Aorta valve, Right atrium |
| C. | Bicuspid valve, Tricuspid valve |
| D. | Left atrium, Right ventricle |
| Answer» D. Left atrium, Right ventricle | |
| 3758. |
What is right for all veins ? (CBSC-2000) |
| A. | They carry oxygenated blood |
| B. | They carry Deoxygenated blood |
| C. | They directly open into vena cave |
| D. | None of the above |
| Answer» E. | |
| 3759. |
The intake of air is called ? |
| A. | Venitlation |
| B. | Inhalation |
| C. | Exhalation |
| D. | Respiration. |
| Answer» C. Exhalation | |
| 3760. |
Flattening of alveolar ducts (tracheal vessels) results in |
| A. | Asthma |
| B. | Emphysema |
| C. | Lung cancer |
| D. | Bronchitis. |
| Answer» C. Lung cancer | |
| 3761. |
Respiratory control centres are loacted in |
| A. | Lungs |
| B. | Medulla oblongata |
| C. | Spinal cord |
| D. | Ribs |
| Answer» C. Spinal cord | |
| 3762. |
CO2 reacts with water to form |
| A. | Haemoglobinic acid |
| B. | Carbonic acid |
| C. | Bicarbonate ions |
| D. | Carbon mono oxide. |
| Answer» C. Bicarbonate ions | |
| 3763. |
H2 CO3 is converted into CO2 and H2O with the help of an enzyme known as |
| A. | Carboxylase |
| B. | Carbonic dehydrogenase |
| C. | Carbonicenhydrase |
| D. | Carbonic anhydrase. |
| Answer» E. | |
| 3764. |
Trachea terminates in |
| A. | Bronchi |
| B. | Alveoli |
| C. | Bronchioles |
| D. | Nares |
| Answer» B. Alveoli | |
| 3765. |
The length of human trachea is about (Gujarat C.E.T.Q.B.) |
| A. | 6 inches |
| B. | 12 cm |
| C. | 12 inches |
| D. | 18 cm |
| Answer» C. 12 inches | |
| 3766. |
During exhalation, the diaphragm moves |
| A. | Apart |
| B. | Downwards |
| C. | Upwards |
| D. | Inwards |
| Answer» D. Inwards | |
| 3767. |
One RBC can transport about how many molecles of oxygen? |
| A. | One million |
| B. | Ten million |
| C. | One billion |
| D. | Ten billion |
| Answer» D. Ten billion | |
| 3768. |
How many percentage of CO2 transport in the form of carbamino compounds ? |
| A. | 70% |
| B. | 90% |
| C. | 5% |
| D. | 20% |
| Answer» E. | |
| 3769. |
A lung contains many small balloon like air sacs. are called..... |
| A. | Gas spaces |
| B. | Alveoli |
| C. | Bronchi |
| D. | Bronchioles |
| Answer» C. Bronchi | |
| 3770. |
The trachea is supported by, cartilaginous rings,which are.........shaped |
| A. | C |
| B. | L |
| C. | O |
| D. | S |
| Answer» B. L | |
| 3771. |
The largest amount of CO2 is transported in blood as |
| A. | Carbamino compounds |
| B. | Bicarbonates |
| C. | Carbonic acid - |
| D. | Carbonate ions. |
| Answer» C. Carbonic acid - | |
| 3772. |
The metal ion present in haemoglobin is |
| A. | Iron |
| B. | Magnesium |
| C. | Copper |
| D. | Zinc |
| Answer» B. Magnesium | |
| 3773. |
How much fraction of oxygen is transported to tissues through RBCs? |
| A. | 100% |
| B. | 56% |
| C. | 45% |
| D. | 97%. |
| Answer» E. | |
| 3774. |
Intercostal muscles regulate the movement of |
| A. | Ribs |
| B. | Trachea |
| C. | Diapharagm |
| D. | Pharynx. |
| Answer» B. Trachea | |
| 3775. |
In which form CO2 is not transported by blood plasma |
| A. | NaHCO3 |
| B. | KHCO3 |
| C. | Carbamino proteins |
| D. | KHbO2 |
| Answer» C. Carbamino proteins | |
| 3776. |
Chloride back-shift is associated with the transport of |
| A. | Carbamino |
| B. | CO2 |
| C. | Oxygen |
| D. | Water |
| Answer» D. Water | |
| 3777. |
Which of these protects the larynx |
| A. | Pharnx |
| B. | Trachea |
| C. | Epiglottis |
| D. | Naso-pharynx. |
| Answer» D. Naso-pharynx. | |
| 3778. |
Bronchitis is a |
| A. | Bacterial infection |
| B. | Viral infection |
| C. | Protozoan infection |
| D. | Fungal infection. |
| Answer» B. Viral infection | |
| 3779. |
Oxygen containing blood transported from lungs is to heart by |
| A. | Pulmonary artery |
| B. | Pulmonary vein |
| C. | Branchial artery |
| D. | Renal vein |
| Answer» C. Branchial artery | |
| 3780. |
The surface, from which the exchange of, gas takes place, is called |
| A. | Plasma surface |
| B. | Respiratory substrates |
| C. | Respiration surface |
| D. | Gaseous surface. |
| Answer» D. Gaseous surface. | |
| 3781. |
The de-oxygenated blood from heart comes to the lungs by |
| A. | Pulmonary artery |
| B. | Pulmonary vein |
| C. | Branchial artery |
| D. | Renal artery |
| Answer» B. Pulmonary vein | |
| 3782. |
Immunoglobulins are produced by (CBSE 1996) |
| A. | Lymphocytes |
| B. | Spleen |
| C. | Leucocytes |
| D. | Monocytes |
| Answer» B. Spleen | |
| 3783. |
The muscles present between ribs are called |
| A. | Phrenic muscles |
| B. | Intercoslal muscles |
| C. | Cardiac muscles |
| D. | Voluntary muscles. |
| Answer» C. Cardiac muscles | |
| 3784. |
Sound production in humans is controlled by |
| A. | Nares |
| B. | Lungs |
| C. | Larynx |
| D. | Pharynx |
| Answer» D. Pharynx | |
| 3785. |
Asthma is a disease of |
| A. | Pharynx |
| B. | Trachea and its branches |
| C. | Lungs |
| D. | Blood capillaries |
| Answer» C. Lungs | |
| 3786. |
Make correct pairs : |
| A. | P-ii, Q-iv, R-iii, S-i |
| B. | P-iv, Q-i, R-ii, S-iii |
| C. | P-iv, Q-iii, R-ii, S-i |
| D. | P-iii, Q-iv, R-ii, S-i |
| Answer» D. P-iii, Q-iv, R-ii, S-i | |
| 3787. |
What is the function of lymph ? (MPPMT-95) |
| A. | Transport of O2 into brain |
| B. | Transport of CO2 into lungs |
| C. | Bring interstitial fluid in blood |
| D. | Bring RBC and WBC in lymph node |
| Answer» D. Bring RBC and WBC in lymph node | |
| 3788. |
Which of the following is not a major organ of lymphatic system (MP PMT 2010) |
| A. | Lymph nodes |
| B. | Thymus |
| C. | Kidney |
| D. | Spleen |
| Answer» D. Spleen | |
| 3789. |
Who much diastolic pressure is ? |
| A. | 120 mmHg |
| B. | 80mmHg |
| C. | 120/80mmHg |
| D. | 40mmHg |
| Answer» C. 120/80mmHg | |
| 3790. |
Hepatic portal system starts from |
| A. | Digestive system to liver |
| B. | Kidney to liver |
| C. | Liver to heart |
| D. | Liver to Kidney |
| Answer» B. Kidney to liver | |
| 3791. |
What P indicates in ECG ? (Wardha - 2003) |
| A. | End of atrium systole |
| B. | Starting of atrium systole |
| C. | End of ventricle systole |
| D. | Starting of ventricle systole |
| Answer» C. End of ventricle systole | |
| 3792. |
Which of the following shows pulmonary respiration |
| A. | Sponge |
| B. | Fishes |
| C. | Coelentrate |
| D. | Human |
| Answer» E. | |
| 3793. |
Respiration is helpful in |
| A. | Removing waste from the body |
| B. | Producing energy within the body |
| C. | Production of proteins |
| D. | Production of carbohydrates. |
| Answer» C. Production of proteins | |
| 3794. |
The diameter of human trachea is about |
| A. | 1 cm |
| B. | 2.5 cm |
| C. | 2 inches |
| D. | 0.1 cm |
| Answer» C. 2 inches | |
| 3795. |
Which of the following human organs is often called the “graveyard” of RBC ?(AIIPMT 2012-M) |
| A. | Spleen |
| B. | kidney |
| C. | Pancreas |
| D. | Liver |
| Answer» B. kidney | |
| 3796. |
There is no DNA in |
| A. | Mature RBCs |
| B. | Mature spermatozoa |
| C. | Hair root |
| D. | Ovum |
| Answer» B. Mature spermatozoa | |
| 3797. |
Which is the correct statement for blood ? (APMEE - 96) |
| A. | WBC is more than RBC |
| B. | RBC is more than WBC |
| C. | RBC is less than platelets |
| D. | Platelets is less than RBC |
| Answer» C. RBC is less than platelets | |
| 3798. |
Blood circulation that stats in capillaries and ends in capaillaries is called (J & K CET 2010) |
| A. | Portal circulation |
| B. | Hepatic circulation |
| C. | Cardic circulation |
| D. | None of these |
| Answer» B. Hepatic circulation | |
| 3799. |
In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be ? (AIPMT 2011) |
| A. | B |
| B. | O |
| C. | AB |
| D. | A |
| Answer» D. A | |
| 3800. |
Which of the following is correct for all veins ? |
| A. | All veins transport deoxygenated blood |
| B. | All veins transport oxygenated blood |
| C. | They transport blood from organs to heart |
| D. | They transport blood from heart to organs |
| Answer» D. They transport blood from heart to organs | |