MCQOPTIONS
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MCQOPTIONS
This section includes 2103 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1851. |
Unlike plant cells, animal cells have |
| A. | no vacuoles |
| B. | 1 vacuole |
| C. | 2 vacuoles |
| D. | many vacuoles |
| Answer» E. | |
| 1852. |
Cell theory was given after working independently by |
| A. | Theodore |
| B. | F. Sanger |
| C. | Schneider |
| D. | Robert brown |
| Answer» D. Robert brown | |
| 1853. |
The structure of plasma membrane is |
| A. | permeable |
| B. | semi-permeable |
| C. | impermeable |
| D. | stronger than cell wall |
| Answer» C. impermeable | |
| 1854. |
The purpose of the sphincter muscle is to |
| A. | allow the urine to flow in ureter |
| B. | hold urine in bladder |
| C. | relax and allow the urine to flow |
| D. | connect urine to urethra |
| Answer» D. connect urine to urethra | |
| 1855. |
Prothrombin helps in |
| A. | fighting against diseases |
| B. | giving red color to the blood |
| C. | blood clotting |
| D. | hormones regulations |
| Answer» D. hormones regulations | |
| 1856. |
Tissue cells like cartilage may not have a direct contact with |
| A. | blood arteries |
| B. | blood veins |
| C. | tissue fluid |
| D. | blood capillaries |
| Answer» E. | |
| 1857. |
Via synapse, receptor neuron transmits the impulse to |
| A. | effector neuron |
| B. | motor neurons |
| C. | muscles |
| D. | relay neurons |
| Answer» E. | |
| 1858. |
If levels of glucose (C₆H₁₂O₆) drop drastically, |
| A. | a person experiences hangover |
| B. | more insulin is produced |
| C. | glucose is converted to glycogen |
| D. | glycogen is converted to glucose |
| Answer» E. | |
| 1859. |
Atherosclerosis can be avoided through |
| A. | more of saturated animal fats |
| B. | poly unsaturated plant fats |
| C. | more of smoking |
| D. | a stress full and busy job |
| Answer» C. more of smoking | |
| 1860. |
Sweat largely contains water, with inorganic salts like |
| A. | carbon dioxide |
| B. | sodium carbide |
| C. | sodium chloride |
| D. | sodium bicarbonate |
| Answer» D. sodium bicarbonate | |
| 1861. |
Adenosine triphosphate temporarily store the energy produced with the help of |
| A. | Chloroplast |
| B. | Mitochondrion |
| C. | Cell sap |
| D. | Centrioles |
| Answer» C. Cell sap | |
| 1862. |
Vacuoles of plant cells are |
| A. | permanent |
| B. | semi-permanent |
| C. | temporary |
| D. | impermeable |
| Answer» B. semi-permanent | |
| 1863. |
Resolution of a human naked eye is |
| A. | 2.0mm |
| B. | 1.0mm |
| C. | 3.0mm |
| D. | 0.2mm |
| Answer» C. 3.0mm | |
| 1864. |
Skin gets its characteristic color due to |
| A. | dermis |
| B. | cornified layer |
| C. | granular layer |
| D. | malpighian layer |
| Answer» E. | |
| 1865. |
The red color in arteries is attributed to |
| A. | hemoglobin |
| B. | oxyhemoglobin |
| C. | aplastic anemia |
| D. | carboxyhemoglobin |
| Answer» C. aplastic anemia | |
| 1866. |
Cell bodies of the neurons |
| A. | make up the grey matter |
| B. | make up the white matter |
| C. | are found inside the brain |
| D. | are found only in the spinal cord |
| Answer» B. make up the white matter | |
| 1867. |
In hypothalamus, heat gain center is activated if |
| A. | day is cold |
| B. | day is sunny |
| C. | mammal is hairy |
| D. | excess physical activities are done |
| Answer» B. day is sunny | |
| 1868. |
Blood plasma carries carbon dioxide in the form of bicarbonate ions to |
| A. | liver |
| B. | glands |
| C. | intestines |
| D. | lungs |
| Answer» E. | |
| 1869. |
Plant cell wall is made up of |
| A. | cell surface membrane |
| B. | plasma membrane |
| C. | cellulose |
| D. | cell sap |
| Answer» D. cell sap | |
| 1870. |
Sweat glands become less active if |
| A. | heat loose center of hypothalamus is activated |
| B. | heat gain center of hypothalamus is activated |
| C. | low glucose detector part of hypothalamus is stimulated |
| D. | high glucose detector part of hypothalamus is stimulated |
| Answer» C. low glucose detector part of hypothalamus is stimulated | |
| 1871. |
Cell surface membrane does not support in all of others but |
| A. | osmosis |
| B. | leakage of water to the soil |
| C. | leakage of salts and amino acids to the soil |
| D. | reducing the cell surface: volume ratio |
| Answer» B. leakage of water to the soil | |
| 1872. |
According to classification of homeostasis , most reptiles are |
| A. | homoeothermic |
| B. | poikilothermic |
| C. | heterothermic |
| D. | hypoeothermic |
| Answer» C. heterothermic | |
| 1873. |
Internal environment of an animal refers to the |
| A. | tissue fluids |
| B. | blood |
| C. | body fluids |
| D. | all of above |
| Answer» E. | |
| 1874. |
Group of cells performing similar functions are called |
| A. | phyla |
| B. | tissues |
| C. | xylem |
| D. | epithelium |
| Answer» C. xylem | |
| 1875. |
Vacuoles of animal cells are |
| A. | permanent |
| B. | semi-permanent |
| C. | large and central |
| D. | none of others |
| Answer» E. | |
| 1876. |
Function of pancreas is to produce |
| A. | bile |
| B. | insulin |
| C. | glucagon |
| D. | all of above |
| Answer» E. | |
| 1877. |
Bicarbonate ions (HCO₃⁻) in plasma indicate the presence of |
| A. | carbonic acid |
| B. | uric acid |
| C. | carbohydrates |
| D. | carbon dioxide |
| Answer» E. | |
| 1878. |
People likely to have similar genes, have more chances of |
| A. | tissue pathology |
| B. | tissue rejection |
| C. | successful tissue transplant |
| D. | contract fatal diseases |
| Answer» D. contract fatal diseases | |
| 1879. |
Due to tar, an over multiplication of cells in lungs causes |
| A. | atherosclerosis |
| B. | insomnia |
| C. | blood clotting |
| D. | cancer |
| Answer» E. | |
| 1880. |
Organelle playing an active part in cell division is known as |
| A. | centriole |
| B. | chromatin |
| C. | nucleoli |
| D. | mitochondrion |
| Answer» B. chromatin | |
| 1881. |
Erector muscles are found in |
| A. | epidermis |
| B. | dermis |
| C. | subcutaneous adipose tissue |
| D. | hair follicles |
| Answer» C. subcutaneous adipose tissue | |
| 1882. |
Lymphocytes and phagocytes are types of |
| A. | erythrocytes |
| B. | leucocytes |
| C. | thrombocytes |
| D. | antibodies |
| Answer» C. thrombocytes | |
| 1883. |
If the artery walls become thick and hard, the condition is called as |
| A. | angina |
| B. | arteriosclerosis |
| C. | atherosclerosis |
| D. | heart attack |
| Answer» C. atherosclerosis | |
| 1884. |
Glucose (C₆H₁₂O₆) level ion blood may fall due to |
| A. | adequate insulin production |
| B. | impaired functioning of liver |
| C. | heavy meals |
| D. | fasting |
| Answer» E. | |
| 1885. |
Protoplasm is found in the cells, whereas the cytoplasm is found in |
| A. | nucleus |
| B. | vacuoles |
| C. | centrioles |
| D. | surrounds nucleus |
| Answer» E. | |
| 1886. |
Bulk of undigested matter is made up of |
| A. | glycogen |
| B. | cellulose |
| C. | galactose |
| D. | stearic acid |
| Answer» C. galactose | |
| 1887. |
Thin, expanded lamin helps in the absorption of |
| A. | oxygen |
| B. | hydrogen |
| C. | fresh nutrients |
| D. | carbon dioxide |
| Answer» E. | |
| 1888. |
Plasma does not contain |
| A. | erythrocytes |
| B. | antibodies |
| C. | serum albumin |
| D. | serum globulin |
| Answer» B. antibodies | |
| 1889. |
If the temperature of penguins rises above 38 °C, they |
| A. | cuddle together |
| B. | pant |
| C. | increase metabolic rate |
| D. | respire on stored fat |
| Answer» C. increase metabolic rate | |
| 1890. |
Pulses are a good source of |
| A. | carbohydrates |
| B. | fats |
| C. | proteins |
| D. | vitamins |
| Answer» D. vitamins | |
| 1891. |
Plant have ____ while animals lack it. |
| A. | starch |
| B. | cellulose |
| C. | protein |
| D. | fat |
| Answer» C. protein | |
| 1892. |
Photosynthesis is a process |
| A. | reductive and exergonic |
| B. | reductive and catabolic |
| C. | reductive, endergonic and catabolic |
| D. | reductive, endergonic and anabolic |
| Answer» E. | |
| 1893. |
Plants absorb most part of water needed by them through their |
| A. | embryonic zone |
| B. | growing point |
| C. | root hairs |
| D. | zone of elongation |
| Answer» D. zone of elongation | |
| 1894. |
Process of cell division can take place by |
| A. | heterosis |
| B. | fusion |
| C. | mitosis |
| D. | None of these |
| Answer» D. None of these | |
| 1895. |
Prokaryotic cells lack |
| A. | nucleolus |
| B. | nuclear membrane |
| C. | membrane bound by organelles |
| D. | All of these |
| Answer» E. | |
| 1896. |
Plants that grow in saline water are called |
| A. | halophytes |
| B. | hydrophytes |
| C. | mesophytes |
| D. | thallophytes |
| Answer» B. hydrophytes | |
| 1897. |
Other than spreading malaria, anopheles mosquitoes are also vectors of |
| A. | dengue fever |
| B. | filariasis |
| C. | encephalitis |
| D. | yellow fever |
| Answer» C. encephalitis | |
| 1898. |
Most highly intelligent mammals are |
| A. | whales |
| B. | dolphins |
| C. | elephants |
| D. | kangaroos |
| Answer» C. elephants | |
| 1899. |
Mumps is a disease caused by |
| A. | fungus |
| B. | bacterium |
| C. | virus |
| D. | None of these |
| Answer» D. None of these | |
| 1900. |
Pyorrhoea is a disease of the |
| A. | nose |
| B. | gums |
| C. | heart |
| D. | lungs |
| Answer» C. heart | |