MCQOPTIONS
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MCQOPTIONS
This section includes 184 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Anterior five vertebrae fuse together to form |
| A. | sacrum |
| B. | coccyx |
| C. | embryo |
| D. | zygote |
| Answer» B. coccyx | |
| 102. |
Specialized salt excreting organs are |
| A. | mammary glands |
| B. | secretory glands |
| C. | anorectal glands |
| D. | rectal glands |
| Answer» E. | |
| 103. |
Internal ciliated opening which is immersed in coelomic fluid is called |
| A. | nephridiophore |
| B. | nephridiostome |
| C. | Cnidarians |
| D. | flame cells |
| Answer» C. Cnidarians | |
| 104. |
When two bones meet, there occur a |
| A. | appendages |
| B. | joint |
| C. | space |
| D. | multistage |
| Answer» C. space | |
| 105. |
Metabolism of purine and pyrimidine results in formation of significant amount of |
| A. | xanthine,hypoxanthine |
| B. | uric acid,allantoin |
| C. | urea, ammonia |
| D. | All of Above |
| Answer» E. | |
| 106. |
Basic functional structure in kidneys is |
| A. | flame cell |
| B. | nephrons |
| C. | neuron |
| D. | alveoli |
| Answer» C. neuron | |
| 107. |
Most land mammals used to raise their fur to block still air hence protect themselves against |
| A. | hot |
| B. | cold |
| C. | pressure |
| D. | predators |
| Answer» C. pressure | |
| 108. |
Network of closed tubules without internal openings are called |
| A. | protonephridium |
| B. | metanephridium |
| C. | malphigian tubules |
| D. | exoluticus tubules |
| Answer» B. metanephridium | |
| 109. |
Coxal bone is composed of |
| A. | ilium |
| B. | ischium |
| C. | pubis |
| D. | All of the Above |
| Answer» E. | |
| 110. |
Nephrons are arranged in distinct region of |
| A. | cortex |
| B. | medulla |
| C. | calyx |
| D. | pelvis |
| Answer» D. pelvis | |
| 111. |
50 ml of water is needed to remove nitrogen in urea that is |
| A. | 1g |
| B. | 2g |
| C. | 3g |
| D. | 0.5g |
| Answer» B. 2g | |
| 112. |
Muscles which control urine inside and help in urination while passing it out are |
| A. | glands |
| B. | sphincters muscles |
| C. | abdominal muscles |
| D. | thigh muscles |
| Answer» C. abdominal muscles | |
| 113. |
In mammals, main key role for thermoregulation has been adapted by |
| A. | nails |
| B. | skin |
| C. | hairs |
| D. | All of the Above |
| Answer» C. hairs | |
| 114. |
Animals which excrete uric acid are called as |
| A. | ammonotelic |
| B. | ureotelic |
| C. | uricotelic |
| D. | urinotelic |
| Answer» D. urinotelic | |
| 115. |
Extensive convoluted part of Bowman's capsule is called |
| A. | vasa recta |
| B. | renal hilus |
| C. | loop of henel |
| D. | distal part |
| Answer» D. distal part | |
| 116. |
Sebaceous glands protect skin against microorganism by secreting |
| A. | sebum |
| B. | sweat |
| C. | salts |
| D. | water |
| Answer» B. sweat | |
| 117. |
Rickets is disease which deform pelvis and bow legs of mostly |
| A. | children |
| B. | animals |
| C. | aged women |
| D. | aged men |
| Answer» B. animals | |
| 118. |
Muscles which are called striped, striated and voluntary are |
| A. | smooth muscles |
| B. | cardiac muscles |
| C. | skeletal muscles |
| D. | rough muscles |
| Answer» D. rough muscles | |
| 119. |
Major constituent of hemoglobin receives iron from |
| A. | liver |
| B. | bolus |
| C. | chyme |
| D. | lungs |
| Answer» B. bolus | |
| 120. |
Urea in high concentration may cause damage to fishes so they retain a protecting chemical against urea called |
| A. | trimethyloxide |
| B. | methyl oxide |
| C. | hydrogen oxide |
| D. | hydrogen peroxide |
| Answer» B. methyl oxide | |
| 121. |
Plant which shed its leaves to restrict transpiration is |
| A. | rose |
| B. | balsam |
| C. | cacti |
| D. | conifer |
| Answer» D. conifer | |
| 122. |
In earthworm excretory system, epithelium reabsorbs salts from |
| A. | septum |
| B. | capillary network |
| C. | bladder |
| D. | lumen |
| Answer» E. | |
| 123. |
Technique in which high concentration X-rays are directed towards stones from outside of body is |
| A. | Eletracorporeal shock wave lithotripsy |
| B. | lithotripsy |
| C. | Dialysis |
| D. | Photolysis |
| Answer» B. lithotripsy | |
| 124. |
It is believed that hyponasty is due to |
| A. | auxin |
| B. | gibberellins |
| C. | albumin |
| D. | globulin |
| Answer» C. albumin | |
| 125. |
Row of phalanges are attached to metacarpals which support |
| A. | wrist |
| B. | fingers |
| C. | knee |
| D. | elbow |
| Answer» C. knee | |
| 126. |
Evolutionary adaptations of nitrogenous wastes are |
| A. | ammonotelic |
| B. | ureotelic |
| C. | hydrotelic |
| D. | Both a and b |
| Answer» E. | |
| 127. |
Homeostatic thermostat which facilitate process of thermoregulation in man is present in |
| A. | cerebrum |
| B. | thalamus |
| C. | hypothalamus |
| D. | medulla |
| Answer» D. medulla | |
| 128. |
Fresh water animals are in contact mode of hydration with loss of |
| A. | nutrients |
| B. | salts |
| C. | potassium |
| D. | All of the Above |
| Answer» C. potassium | |
| 129. |
In rainy season, part of plant act as photosynthetic organ and stores water is |
| A. | root |
| B. | stem |
| C. | flower |
| D. | seed |
| Answer» C. flower | |
| 130. |
Size of skull is reduced due to genetic disorder is |
| A. | Microcephaly |
| B. | Arthritis |
| C. | Cleft palate |
| D. | Osteoarthritis |
| Answer» B. Arthritis | |
| 131. |
One gram of ammonia to be excreted need water of about |
| A. | 400ml |
| B. | 100ml |
| C. | 500ml |
| D. | 250ml |
| Answer» D. 250ml | |
| 132. |
Elevated levels of calcium in blood lead towards |
| A. | hypocalcaemia |
| B. | hypercalcemia |
| C. | hyperoxaluria |
| D. | hypertension |
| Answer» C. hyperoxaluria | |
| 133. |
Cranium consists of 8 bones in which |
| A. | 2 unpaired, 4 paired |
| B. | 4 unpaired, 2 paired |
| C. | 2 unpaired, 3 paired |
| D. | 6 unpaired,1 paired |
| Answer» C. 2 unpaired, 3 paired | |
| 134. |
Disc slip can be treated by |
| A. | bed rest |
| B. | traction |
| C. | painkiller |
| D. | All of the Above |
| Answer» E. | |
| 135. |
Regulation of solute and balance of water is done by |
| A. | homeostasis |
| B. | thermoregulation |
| C. | osmoregulation |
| D. | diffusoregulation |
| Answer» D. diffusoregulation | |
| 136. |
Waste material is generated through metabolism, hence are termed as |
| A. | metabolic wastes |
| B. | catabolic wastes |
| C. | anabolic wastes |
| D. | Integrated waste |
| Answer» B. catabolic wastes | |
| 137. |
Central metabolic cleaning house which is central station of metabolism as well is |
| A. | kidney |
| B. | lungs |
| C. | heart |
| D. | liver |
| Answer» E. | |
| 138. |
Hind limbs consist of |
| A. | appendages |
| B. | pelvic girdle |
| C. | axon |
| D. | Both a and b |
| Answer» E. | |
| 139. |
Planarian excretory system is |
| A. | protonephridium |
| B. | metanephridium |
| C. | Malphigian tubules |
| D. | etanephridium |
| Answer» B. metanephridium | |
| 140. |
Poikilotherms fluctuate more or less with |
| A. | ambient temperature |
| B. | heat shock proteins |
| C. | hydrostatic temperature |
| D. | thermalstatic temperature |
| Answer» B. heat shock proteins | |
| 141. |
Elimination of nitrogenous waste from body constitutes |
| A. | digestion |
| B. | elimination |
| C. | excretion |
| D. | regulation |
| Answer» D. regulation | |
| 142. |
Dogs have specialized evaporative cooling inside respiratory tract by |
| A. | licking |
| B. | sleeping |
| C. | panting |
| D. | woofing |
| Answer» D. woofing | |
| 143. |
Scapula is connected to sternum via |
| A. | clavicle |
| B. | fore limb |
| C. | appendages |
| D. | pectoral girdle |
| Answer» B. fore limb | |
| 144. |
Leaves fall of helping in plant to get rid of accumulated wastes hence called |
| A. | helper |
| B. | sacrifice |
| C. | excretophore |
| D. | ebony |
| Answer» D. ebony | |
| 145. |
If kidney is completely lost and unable to eliminate nitrogenous waste, it leads to |
| A. | chronic renal failure |
| B. | chronic liver failure |
| C. | chronic respiratory failure |
| D. | chronic pancreas failure |
| Answer» B. chronic liver failure | |
| 146. |
Stabbing paint due to injury of proximal sciatic nerve is disease |
| A. | rickets |
| B. | sciatica |
| C. | spondylosis |
| D. | Arthritis |
| Answer» C. spondylosis | |
| 147. |
Kidneys receive 20% of blood with each |
| A. | urea cycle |
| B. | cardiac beat |
| C. | cardiac cycle |
| D. | Both a and b |
| Answer» C. cardiac cycle | |
| 148. |
Capacity to tolerate dehydration in animals is termed as |
| A. | hydrobiosis |
| B. | anhydrobiosis |
| C. | hydrabiosis |
| D. | Both a and b |
| Answer» C. hydrabiosis | |
| 149. |
Inverse response from effectors towards external change is called |
| A. | positive feedback |
| B. | negative feedback |
| C. | neutral feedback |
| D. | no feedback |
| Answer» C. neutral feedback | |
| 150. |
Heat shock proteins encircle enzymes as a self defense and protect plant against temperature above |
| A. | 10°C |
| B. | 20°C |
| C. | 30°C |
| D. | 40°C |
| Answer» E. | |