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. |
BOD measures the |
| A. | amount of algae being decomposed in a given sample |
| B. | amount of bacteria in a given sample of water |
| C. | amount of oxygen bacteria need to decompose organic matter in a given sample in a fixed period of ti |
| D. | amount of oxygen bacteria need to decompose organic matter in a given sample |
| Answer» D. amount of oxygen bacteria need to decompose organic matter in a given sample | |
| 2. |
In humans, sensitivity of respiratory diseases, eyes and air passages is experienced due to |
| A. | lead |
| B. | carbon dioxide |
| C. | sulphur dioxide |
| D. | carbon monoxide |
| Answer» D. carbon monoxide | |
| 3. |
No one has been able to develop a mixture that can be called as |
| A. | Protoplasm |
| B. | Cytoplasm |
| C. | Chloroplast |
| D. | Plastoplasm |
| Answer» B. Cytoplasm | |
| 4. |
The non-renewable sources do not include |
| A. | minerals |
| B. | fossil fuels |
| C. | all of these |
| D. | air |
| Answer» E. | |
| 5. |
Muscular co-ordination is controlled through |
| A. | midbrain |
| B. | Medulla Oblongata |
| C. | cerebellum |
| D. | hypothalamus |
| Answer» D. hypothalamus | |
| 6. |
To keep the heart running |
| A. | no energy is required |
| B. | energy is required |
| C. | depends on asleep or awake |
| D. | heart beat occurs automatically |
| Answer» C. depends on asleep or awake | |
| 7. |
Lives of organisms are greatly affected by |
| A. | Consumers |
| B. | Producers |
| C. | all of these |
| D. | decomposers |
| Answer» C. all of these | |
| 8. |
Carnial nerves and sense organs are included in the |
| A. | CNS |
| B. | PNS |
| C. | grey matter |
| D. | white matter of spinal cord |
| Answer» C. grey matter | |
| 9. |
Carbohydrate and protein, when combined, form |
| A. | fiber |
| B. | amino acids |
| C. | nucleic acids |
| D. | mucus |
| Answer» E. | |
| 10. |
Lemon and hibiscus are grown through |
| A. | grafting |
| B. | budding |
| C. | marcotting |
| D. | layering |
| Answer» C. marcotting | |
| 11. |
Before excretion, the urine is stored in |
| A. | medulla |
| B. | urinary bladder |
| C. | renal pelvis |
| D. | nephrons |
| Answer» C. renal pelvis | |
| 12. |
In sage, chances of self pollination are reduced due to the fact that |
| A. | the stigmas do not receive the pollens from the same flowers |
| B. | the plant has unisexual flowers |
| C. | XX |
| D. | the distance between the stigma and anther is more |
| Answer» E. | |
| 13. |
Tongue helps to select suitable foods through |
| A. | taste glands |
| B. | salivary gland |
| C. | false palate |
| D. | taste buds |
| Answer» E. | |
| 14. |
Sessile flowers have |
| A. | irregular shape |
| B. | no scent |
| C. | XX |
| D. | no pedicles |
| Answer» E. | |
| 15. |
Nerve impulse transmitted away from the cell body is through |
| A. | axon |
| B. | dendrone |
| C. | none of these |
| D. | neuron |
| Answer» B. dendrone | |
| 16. |
Chlorophyll is but |
| A. | reflects the green color if viewed through light spectrum |
| B. | green in color |
| C. | absorbs red and blue light more then other colors |
| D. | not green in color |
| Answer» C. absorbs red and blue light more then other colors | |
| 17. |
Trophic level refers to the |
| A. | stage in an ecological niche |
| B. | axis around the earth |
| C. | XX |
| D. | stage in a food chain |
| Answer» E. | |
| 18. |
Neurons |
| A. | differ in size |
| B. | make up the nervous tissue |
| C. | all of these |
| D. | differ in shapes |
| Answer» D. differ in shapes | |
| 19. |
If plants absorb carbon dioxide in water, the water becomes |
| A. | acidic |
| B. | alkaline |
| C. | XX |
| D. | neutral |
| Answer» C. XX | |
| 20. |
A reduced immunity in white blood cells tend to more |
| A. | coronary risks |
| B. | viral attacks |
| C. | bacterial attacks |
| D. | blood clots |
| Answer» C. bacterial attacks | |
| 21. |
Budding and spore formation are examples of |
| A. | asexual reproduction |
| B. | sexual reproduction |
| C. | XX |
| D. | XX |
| Answer» B. sexual reproduction | |
| 22. |
In a food chain, organisms |
| A. | provides food for succeeding organisms |
| B. | feed on preceding one |
| C. | both of these |
| D. | none of these |
| Answer» D. none of these | |
| 23. |
Artery leaving from the left ventricle of the heart is |
| A. | aortic arch |
| B. | pulmonary artery |
| C. | posterior vena cava |
| D. | inferior vena cava |
| Answer» B. pulmonary artery | |
| 24. |
A special kind of protein containing iron is called as |
| A. | hemoglobin |
| B. | hormones |
| C. | white blood cell |
| D. | red blood cell |
| Answer» B. hormones | |
| 25. |
Cells with their ling axes at right angle to cuticle are found in |
| A. | palisade tissues |
| B. | upper epidermis |
| C. | lower epidermis |
| D. | spongy tissues |
| Answer» B. upper epidermis | |
| 26. |
The energy of a photon and the light wavelength are |
| A. | sometimes same |
| B. | always same |
| C. | inversely proportionate |
| D. | directly proportionate |
| Answer» D. directly proportionate | |
| 27. |
The sebaceous glands are derived from |
| A. | blood vessels in dermis |
| B. | hair in dermis |
| C. | none of these |
| D. | epidermis |
| Answer» E. | |
| 28. |
Artificial methods of reproduction do not include |
| A. | cutting |
| B. | rhizome |
| C. | budding |
| D. | layering |
| Answer» C. budding | |
| 29. |
Seeds may loose vitality |
| A. | if kept completely dry |
| B. | if stored in tropics |
| C. | XX |
| D. | XX |
| Answer» C. XX | |
| 30. |
Very few organisms can digest |
| A. | cellulose |
| B. | glycogen |
| C. | stearic acid |
| D. | galactose |
| Answer» B. glycogen | |
| 31. |
A combination of glucose and fructose molecules result in |
| A. | sucrose |
| B. | maltose |
| C. | lactose |
| D. | galactose |
| Answer» B. maltose | |
| 32. |
Most reactions in living cells are |
| A. | irreversible |
| B. | reversible |
| C. | none of a and b |
| D. | both a and b |
| Answer» C. none of a and b | |
| 33. |
Common name of glycogen is |
| A. | animal starch |
| B. | plant starch |
| C. | all of these |
| D. | fungal starch |
| Answer» B. plant starch | |
| 34. |
Leaf base is also referred to as |
| A. | leaf blade |
| B. | lamina |
| C. | none of these |
| D. | petiole |
| Answer» D. petiole | |
| 35. |
The oxygen released during photosynthesis comes from |
| A. | photolysis |
| B. | chlorophyll |
| C. | water |
| D. | enzyme-controlled reactions |
| Answer» D. enzyme-controlled reactions | |
| 36. |
Carbon dioxide is reduced to carbohydrate through |
| A. | water |
| B. | oxygen |
| C. | light-dependent stage |
| D. | hydrogen |
| Answer» E. | |
| 37. |
The primary function of the sense organs includes |
| A. | perceive external stimuli |
| B. | transmit impulses from receptors to forebrain |
| C. | produce reflex responses |
| D. | interpret external stimuli |
| Answer» B. transmit impulses from receptors to forebrain | |
| 38. |
Weaker off springs are produced as a result of |
| A. | cross pollination |
| B. | self pollination |
| C. | XX |
| D. | XX |
| Answer» C. XX | |
| 39. |
Cellulose can not be digested by |
| A. | fishes and mammals |
| B. | plants |
| C. | fungi |
| D. | herbivores |
| Answer» B. plants | |
| 40. |
The functions of the vasomotor includes |
| A. | vasoconstriction |
| B. | vasodilation |
| C. | none of these |
| D. | both of these |
| Answer» E. | |
| 41. |
The function of palisade layer is to |
| A. | drive away the insects by producing strong odors |
| B. | protect the leaf surface |
| C. | become active in light-independent stage of photosynthesis |
| D. | enable absorption of light through chloroplasts |
| Answer» E. | |
| 42. |
Medulla contains |
| A. | collecting tubules |
| B. | convoluted tubules |
| C. | both of these |
| D. | none of these |
| Answer» D. none of these | |
| 43. |
The wing becomes a flattened extension of testa in |
| A. | plumed seeds |
| B. | plumed fruits |
| C. | winged fruits |
| D. | winged seeds |
| Answer» E. | |
| 44. |
Inspired air has |
| A. | more water vapors |
| B. | less oxygen |
| C. | a high temperature |
| D. | less carbon dioxide |
| Answer» E. | |
| 45. |
Rate of transpiration increases |
| A. | in cold weather |
| B. | in hot weather |
| C. | in still air |
| D. | on a rainy day |
| Answer» C. in still air | |
| 46. |
The guard cells of stoma are |
| A. | convex in shape |
| B. | irregular in shape |
| C. | kidney-shaped |
| D. | long and cylindrical in shape |
| Answer» D. long and cylindrical in shape | |
| 47. |
Through enzyme maltase, maltose can be converted into |
| A. | sucrose |
| B. | starch |
| C. | galactose |
| D. | glucose |
| Answer» E. | |
| 48. |
Branches of leaf veins end in |
| A. | lower epidermis |
| B. | upper epidermis |
| C. | all of these |
| D. | mesophyll cells |
| Answer» E. | |
| 49. |
A photolysis of 12 water molecules results in |
| A. | 12 atoms of hydrogen |
| B. | 6 atoms of hydrogen |
| C. | 24 atoms of hydrogen |
| D. | 18 atoms of hydrogen |
| Answer» D. 18 atoms of hydrogen | |
| 50. |
Upon the completion of life cycle, Spleen and liver destroy |
| A. | leucocytes |
| B. | erythrocytes |
| C. | antibodies |
| D. | platelets |
| Answer» C. antibodies | |