MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If a substance accumulates in a body for a long time, it will be |
| A. | passed out through excretion |
| B. | passed out through egestion |
| C. | passed on to next consumer in food chain |
| D. | become insoluble in water |
| Answer» D. become insoluble in water | |
| 2. |
Selective reabsorption occurs in |
| A. | glomerulus |
| B. | distal convoluted tubule |
| C. | collecting tubule |
| D. | proximal convoluted tubule |
| Answer» E. | |
| 3. |
The pH of pancreatic juice is |
| A. | approx. 7 |
| B. | below 7 |
| C. | depends upon the type of food to be digested |
| D. | above 7 |
| Answer» E. | |
| 4. |
Lack of vitamin B may result in |
| A. | dull skin |
| B. | poor eye sight |
| C. | poor cellular respiration |
| D. | tooth decay |
| Answer» D. tooth decay | |
| 5. |
The technique which uses homologous recombination to delete, add or change a gene is known as |
| A. | gene linking |
| B. | gene bundling |
| C. | gene replication |
| D. | gene targeting |
| Answer» E. | |
| 6. |
At a pH 7 to 9, the activity of amylase |
| A. | slows |
| B. | stops |
| C. | none of these |
| D. | expedites |
| Answer» B. stops | |
| 7. |
Carbon dioxide is one of the end products of decomposition and its nature is |
| A. | inorganic |
| B. | organic |
| C. | XX |
| D. | XX |
| Answer» B. organic | |
| 8. |
A pH value of above 7 indicates |
| A. | pure enzyme |
| B. | pure water |
| C. | pure acidic |
| D. | pure alkaline |
| Answer» E. | |
| 9. |
Sucrose is not found in |
| A. | carrots |
| B. | sugar beets |
| C. | sweet fruits |
| D. | mammals |
| Answer» E. | |
| 10. |
If rate of water evaporation exceeds rate of water in-take, the plant cells will |
| A. | the roots will look for more water |
| B. | start to loose stomata |
| C. | the cells will start to photosynthesize |
| D. | the cells will start to plasmolysis |
| Answer» E. | |
| 11. |
Vector transfers the malarial parasite |
| A. | from an infected person to a mosquitoes |
| B. | from a healthy person to an infected person |
| C. | XX |
| D. | from an infected person to a healthy person |
| Answer» E. | |
| 12. |
The mold Pencillium was discovered by |
| A. | Louis Pasteur |
| B. | Alexander Fleming |
| C. | Chaim Weizmann |
| D. | Charles Darwin |
| Answer» C. Chaim Weizmann | |
| 13. |
When a receptor is activated, the impulse travels along the |
| A. | effector neuron |
| B. | receptor neuron |
| C. | pituitary gland |
| D. | sphincter muscles |
| Answer» C. pituitary gland | |
| 14. |
The binding of enzyme and substrate on active site is explained through |
| A. | lock and hide hypothesis |
| B. | hide and seek hypothesis |
| C. | lock and key hypothesis |
| D. | lock and run hypothesis |
| Answer» D. lock and run hypothesis | |
| 15. |
Holozoic nutrition is a type of |
| A. | photoautotrophic nutrition |
| B. | autotrophic nutrition |
| C. | heterotrophic nutrition |
| D. | tropical nutrition |
| Answer» D. tropical nutrition | |
| 16. |
Lactose can also be called as |
| A. | malt sugar |
| B. | milk sugar |
| C. | grape sugar |
| D. | cane sugar |
| Answer» C. grape sugar | |
| 17. |
A flower with either the stamen or pistil is called as |
| A. | monoecious |
| B. | unisexual flower |
| C. | XX |
| D. | XX |
| Answer» C. XX | |
| 18. |
Fibrinogen helps in |
| A. | giving red color to the blood |
| B. | fighting against diseases |
| C. | hormones regulations |
| D. | blood clotting |
| Answer» E. | |
| 19. |
Seldom fatal disease is called as |
| A. | benign |
| B. | malignant |
| C. | none of these |
| D. | tertian malaria |
| Answer» B. malignant | |
| 20. |
Fatty acids and glycerol are produced after hydrolysis of |
| A. | fats |
| B. | amino acids |
| C. | cellulose |
| D. | starch |
| Answer» B. amino acids | |
| 21. |
Inorganic wastes may include |
| A. | arsenic |
| B. | mercury |
| C. | all of these |
| D. | cadmium |
| Answer» D. cadmium | |
| 22. |
The number of red blood cells produced every second is |
| A. | 15 million |
| B. | 10 million |
| C. | 25 million |
| D. | 20 million |
| Answer» E. | |
| 23. |
Yeasts are |
| A. | multicellular fungi |
| B. | unicellular fungi |
| C. | XX |
| D. | XX |
| Answer» C. XX | |
| 24. |
Pus is formed at the site of wound due to |
| A. | pathogenic bacteria |
| B. | dead phagocytes |
| C. | both of these |
| D. | none of these |
| Answer» D. none of these | |
| 25. |
Due to hemoglobin, the |
| A. | arteries appear blue |
| B. | arteries appear red |
| C. | veins appear blue |
| D. | veins appear red |
| Answer» D. veins appear red | |
| 26. |
Glands of internal section are also called as |
| A. | duct glands |
| B. | endocrine glands |
| C. | none of these |
| D. | exocrine glands |
| Answer» C. none of these | |
| 27. |
Impulses are carried from receptors to CNS and then to |
| A. | organs |
| B. | spinal cord |
| C. | conductors |
| D. | effectors |
| Answer» E. | |
| 28. |
The process of oxidation results in |
| A. | carbohydrates and oxygen |
| B. | carbon dioxide and oxygen |
| C. | storing up of food energy |
| D. | carbohydrates and fats |
| Answer» C. storing up of food energy | |
| 29. |
Liver receives oxygenated blood from |
| A. | iliac artery |
| B. | hepatic artery |
| C. | carotid artery |
| D. | renal artery |
| Answer» C. carotid artery | |
| 30. |
Air pressure in thorax increases in |
| A. | inspiration |
| B. | anaerobic respiration |
| C. | all of these |
| D. | expiration |
| Answer» E. | |
| 31. |
Balancing of nutrients in nature is |
| A. | crude |
| B. | random |
| C. | delicate |
| D. | little |
| Answer» D. little | |
| 32. |
Tissue rejection may be avoided through |
| A. | ultrasound |
| B. | biopsy |
| C. | autopsy |
| D. | x-rays |
| Answer» E. | |
| 33. |
If the artery walls become thick and hard, the condition is called as |
| A. | arteriosclerosis |
| B. | angina |
| C. | heart attack |
| D. | atherosclerosis |
| Answer» B. angina | |
| 34. |
Enzyme released upon injury to blood vessel is |
| A. | fibrinogen |
| B. | thrombin |
| C. | phagocyte |
| D. | thrombokinase |
| Answer» E. | |
| 35. |
Microscopic blood vessel found between the cells of all tissues are |
| A. | arterioles |
| B. | venues |
| C. | vein |
| D. | capillaries |
| Answer» E. | |
| 36. |
Micro-organisms do not include |
| A. | moulds |
| B. | mushrooms |
| C. | none of these |
| D. | both of these |
| Answer» E. | |
| 37. |
The terminal branches of the axon are called as |
| A. | myelin sheath |
| B. | synapse |
| C. | none of these |
| D. | dendrites |
| Answer» E. | |
| 38. |
The flowers of grass |
| A. | are without nectar |
| B. | have nectar |
| C. | XX |
| D. | XX |
| Answer» B. have nectar | |
| 39. |
Between liver and gut wall, the capillaries join to form |
| A. | hepatic portal vein |
| B. | hepatic vein |
| C. | renal veins |
| D. | iliac veins |
| Answer» B. hepatic vein | |
| 40. |
Oxygen and food substances are provided to the heart through |
| A. | aortic arch |
| B. | pulmonary arch |
| C. | subclavian artery |
| D. | coronary arteries |
| Answer» E. | |
| 41. |
An excess of fat-soluble vitamins can cause |
| A. | calcification of soft tissues |
| B. | demineralization of bones |
| C. | both of these |
| D. | none of these |
| Answer» D. none of these | |
| 42. |
The growth of the pollen tube is controlled by the |
| A. | generative nucleus |
| B. | vegetative nucleus |
| C. | XX |
| D. | XX |
| Answer» C. XX | |
| 43. |
Tissue cells like cartilage may not have a direct contact with |
| A. | blood veins |
| B. | blood arteries |
| C. | blood capillaries |
| D. | tissue fluid |
| Answer» D. tissue fluid | |
| 44. |
All is true for adipose tissues but |
| A. | is found below the skin |
| B. | that it acts as insulator |
| C. | fat storage |
| D. | senses changes in temperature |
| Answer» E. | |
| 45. |
From the two vena cavae, deoxygenated blood enters in the |
| A. | right atrium |
| B. | left atrium |
| C. | right ventricle |
| D. | left ventricle |
| Answer» B. left atrium | |
| 46. |
Blood pressure reaches 0mm of mercury |
| A. | ventricular diastole |
| B. | in ventricular systole |
| C. | in vena cavae just before it opens in left atrium of heart |
| D. | in vena cavae just before it opens in right atrium of heart |
| Answer» E. | |
| 47. |
Bisexual flowers may avoid self pollination if |
| A. | anther and stigma do not produce enough eggs and pollens |
| B. | either the anther or the stigma is absent |
| C. | all of these |
| D. | anther and stigma mature at different times |
| Answer» E. | |
| 48. |
The development of protoplasm indicates |
| A. | open systems |
| B. | nutrition |
| C. | all of these |
| D. | growth |
| Answer» E. | |
| 49. |
In order to break starch to form glucose units, starch needs to by |
| A. | condensed |
| B. | hydrolyzed |
| C. | polymerized |
| D. | oxidized |
| Answer» C. polymerized | |
| 50. |
Kidneys do not help in |
| A. | maintaining body temperature |
| B. | osmoregulation |
| C. | regulation of blood pH |
| D. | maintaining composition of blood plasma |
| Answer» B. osmoregulation | |