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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Taxonomic hierarchy refers to(A) Stepwise arrangement of all categories for classification of plants and animals. (B) A group of senior taxonomists who decide the nomenclature of plants and animals. (C) A list of botanists or zoologists who have worked on taxonomy of a species or group. (D) Classification of a species based on fossil record. |
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Answer» Correct option: (A) Stepwise arrangement of all categories for classification of plants and animals. |
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| 2. |
Taxon ‘Mangifera’ denotes (A) genus (B) species (C) division (D) class |
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Answer» Correct option: (A) genus |
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| 3. |
The smallest taxon is (A) class (B) order (C) species (D) genus |
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Answer» Correct option: (C) species |
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| 4. |
In classification, the category present below family is (A) genus (B) species (C) order(D) class |
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Answer» Correct option: (A) genus |
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| 5. |
International code of Binomial nomenclature applies to (A) viruses (B) plants (C) animals (D) both (B) and (C) |
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Answer» Correct option: (D) both (B) and (C) |
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| 6. |
Which is highest in the hierarchy of taxonomic category? (A) Genus (B) Family (C) Order (D) Class |
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Answer» Correct option: (D) Class |
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| 7. |
Cohort is a group of correlated(A) Species (B) Genera (C) Families (D) Order |
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Answer» Correct option: (C) Families Cohort is a group of correlated families. |
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| 8. |
Biosystematics aims at(A) Identification and arrangement of organisms on the basis of their cytological characteristics. (B) The classification of organisms based on broad morphological characters.(C) Delimiting various taxa of organisms and establishing their relationships. (D) The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of study. |
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Answer» Correct option: (D) The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of study. |
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| 9. |
In the entire plant kingdom, the name used for a species (A) cannot be repeated in other genus. (B) can be repeated in another genus. (C) can be repeated in the same genus. (D) can be repeated in the same genus as well as another genus. |
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Answer» Correct option: (B) can be repeated in another genus. A genus is an assemblage of related species. All the species, in genus have more features in common than in other closely related groups of species. |
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| 10. |
Which of the following is a heterogenous group? (A) Family, Genus, Order (B) Division, Class, Species (C) Hibiscus, Genus, Species (D) Hibiscus, Sorghum, Cycas |
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Answer» Correct option: (C) Hibiscus, Genus, Species Hibiscus is a taxon, i.e. a particular plant while genus and species are categories or ranks in a classification. |
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| 11. |
Family is placed between(A) Order and genus (B) Genus and species (C) Class and order (D) Phylum and class |
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Answer» Correct option: (A) Order and genus |
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| 12. |
Taxonomic category ‘order’ comes in between (A) genus and species (B) genus and family (C) family and series (D) division and class |
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Answer» Correct option: (C) family and series |
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| 13. |
Takes about 0.8 sec to complete? |
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Answer» Cardiac cycle |
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| 14. |
Vessels which carry blood towards the heart? |
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Answer» Correct Answer is : Veins |
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| 15. |
What are the important functions of the circulatory system ? |
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Answer» (i) The circulatory system supplies food, oxygen, enzymes, hormones and other substances to the different cells of the body. (ii) It carries the end products of metabolism to the organs which excrete them. (iii) It provides a strong defence to the body in prevention against invasion of infectious microorganisms. (iv) It maintains body temperature, homeostasis of the tissue fluids and acid base balance. |
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| 16. |
Orthostatic reflex triggers baroreceptor reflex and increases the mean …… |
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Answer» Arterial pressure |
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| 17. |
Valves situated at the point where blood flows out of the heart? |
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Answer» Semilunar values |
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| 18. |
………….. circulatory system is seen in Arthropoda and most molluscs. |
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Answer» Open circulatory system is seen in Arthropoda and most molluscs. |
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| 19. |
Explain the disorders of circulatory system. |
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Answer» The improper functioning of the heart may lead to certain disorders such as (i) Hypertension : A continuous or sustained rise in the arterial blood pressure is known as hypertension. The normal pressure in a healthy individual is 120/80 mm Hg. But increase in the blood pressure beyond 140/90 mm Hg is referred to as hypertension. High blood pressure can harm the vital organs. It compels the heart to work excessively, due to which congestive heart disease may set in. (ii) Coronary heart disease : (CAD) : It is also known as atherosclerosis. It affects the blood vessels that supply blood to the heart muscles. This is due to the deposition of fat, cholesterol and Ca+ and fibrous tissues on the walls of the arteries which results in the narrowing of the arterial lumen. (iii) Angina : It is also known as "angina pectoris" The symptom is acute chest pain. When adequate quantity of oxygen do not reach the heart muscles pain occurs. (iv) Heart failure : It is the state of heart which is not able to pump the blood effectively enough to meet the body needs. As congestion of the lungs is the main reason for this heart failure it is also known as congestive heart failure |
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| 20. |
The ‘lub’ sound is associated with the closure of the ……valves. |
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Answer» Tricuspid and bicuspid |
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| 21. |
The decrease in blood pressure upon standing is known as ……… hypertension. |
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Answer» The decrease in blood pressure upon standing is known as Orthostatic hypertension. |
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| 22. |
Prevent blood from re-entering the ventricles after entering the aorta? |
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Answer» Semilunar valves |
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| 23. |
The right atrium receives blood. |
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Answer» The right atrium receives blood Oxygenated. |
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| 24. |
The ‘dub’ sound is associated with the closure of ……… valves. |
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Answer» The ‘dub’ sound is associated with the closure of Semilunar valves. |
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| 25. |
Blood pressure is measured using a ……… and a stethoscope. |
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Answer» Sphygmomanometer |
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| 26. |
The left atrium receives ……… blood. |
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Answer» Deoxygenated |
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| 27. |
The heart is covered by a double membrane called ……… |
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Answer» The heart is covered by a double membrane called Pericardium. |
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| 28. |
An increased heart beat is called …… |
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Answer» An increased heart beat is called Tachycardia. |
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| 29. |
Technical name for one heart beat? |
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Answer» Cardiac cycle |
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| 30. |
How does the blood flow through the heart during the different phases of the cardiac cycle ? |
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Answer» The action of the human heart consists of a series of events, which follow one another with great rapidity. Main events in cardiac cycle are: (i) Auricular systole, (ii) Ventricular systole and (iii) Joint diastole. Thus, we can say that the contraction of the heart and its relaxation constitute cardiac cycle or heart beat. The duration of the cardiac cycle varies inversely with the cardiac rate. The heartbeat is 72 times per minute in man. Single heartbeat lasts for 0.8 of a second. In such heart beats, blood comes to heart and then is propelled from auricles to ventricles and then to arteries. The number of heartbeats per minute is very much influenced by age, size, sex, temperature. |
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| 31. |
Thick walled chambers of the heart? |
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Answer» Thick walled chambers of the heart Atria. |
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| 32. |
Very narrow blood vessels? |
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Answer» Correct Answer is : Capillaries |
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| 33. |
Valves between the left atrium and ventricle? |
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Answer» Bicuspid valve |
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| 34. |
The crocodile has a ………. chambered heart. |
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Answer» The crocodile has a Four chambered heart. |
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| 35. |
The heart wall is made up of outer epicardium, middle myocardium and the inner ……… |
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Answer» The heart wall is made up of outer epicardium, middle myocardium and the inner Endocardium. |
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| 36. |
The unidirectional flow of blood in veins is due to the presence of that prevents back flow of blood. |
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Answer» Semi lunar valves |
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| 37. |
The conversion of prothrombin into thrombin occurs in the presence of ……………..(a) Potassium and vitamin D (b) Sodium and vitamin B,2 (c) Calcium and vitamin K (d) Iodine and vitamin E |
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Answer» (c) Calcium and vitamin K |
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| 38. |
……… are the blood cells which have two lobes which are joined by thin strands. (a) Neutrophils (b) Basophils (c) Eosinophils (d) Lymphocytes |
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Answer» (c) Eosinophils |
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| 39. |
……….. are small, narrow, and thin walled which are connected to the capillaries. |
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Answer» Arterioles are small, narrow, and thin walled which are connected to the capillaries. |
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| 40. |
The tissue fluid that surrounds the cell is ……… |
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Answer» Interstitial fluid. |
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| 41. |
Describe the mechanism by which the human heart beat is initiated and controlled? |
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Answer» The rhythmic contraction and expansion of heart is called heart beat. The contraction of the heart is called systole and the relaxation of the heart is called diastole. The human heart is myogenic. The pacemaker cells are located in the right sinoatrial (SA) node. On the left side of the right atrium, there is a mode called auriculo ventricular node (AV). Two special cardiac muscle fibres which originate from the AV node are called the bundle of His. It runs down into the interventricular spectrum and the fibres spread into the ventricle as the Purkinje fibres. The pacemaker cells produce excitation through depolarization of their cell membrane. Early depolarization is slow and takes place by sodium influx and reduction in potassium efflux. Minimum potential is required to activate voltage gated calcium (Ca+) channels that cause rapid depolarization which results in action potential. The pace maker cells repolarise slowly via K+ efflux. |
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| 42. |
Which is known as liquid connective tissue? (a) Plasma (b) Blood (c) Serum(d) lymph |
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Answer» Correct Answer is: (b) blood |
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| 43. |
…….. me a brief electric shock given to the heart to recover the function of the heart. |
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Answer» Defibrillation me a brief electric shock given to the heart to recover the function of the heart. |
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| 44. |
…….. guards the opening between the left atrium and left ventricle. |
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Answer» Bicuspid valve/mitral valve |
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| 45. |
In systemic circulation, blood from the ………… ventricle is carried by a network of arteries, arterioles and capillaries to the tissues. (a) Deoxygenated right (b) Oxygenated left (c) Oxygenated right(d) Deoxygenated left |
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Answer» (b) Oxygenated, left |
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| 46. |
The myocardium of the ventricle is thrown into irregular muscular ridges called ……… |
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Answer» Trabeculae cornea |
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| 47. |
What is the function of albumin? (a) Transport of hormones (b) Blood clothing (c) Maintenance of osmotic pressure (d) Immunity |
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Answer» (c) Maintenance of osmotic pressure |
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| 48. |
The red colour of the RBC is due to the presence of a respiratory pigment …………… (a) Haemoerythrin (b) Haemoglobin (c) Haemocyanin (d) Chlorocronin |
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Answer» (b) Haemoglobin |
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| 49. |
Do you think there are more chances of accidents when you are in a hurry or you have some tension? |
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Answer» When one is under stress the chances of accidents are more. Mind, emotions and body work together. The mind is the rational and logical part that helps you to make unemotional choices. If tension overrules the mind, accidents occur. |
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| 50. |
Fragment of cells which are made in the bone marrow? |
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Answer» Erythrocytes. |
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