MCQOPTIONS
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MCQOPTIONS
This section includes 1275 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1101. |
Which of the following bone is not present in the hind-limb? |
| A. | Femur |
| B. | Tibia |
| C. | Radius |
| D. | Fibula |
| Answer» D. Fibula | |
| 1102. |
Insertion of Biceps is on_________? |
| A. | Ulna |
| B. | Radius |
| C. | Olecronon process of ulna |
| D. | Scapula |
| Answer» C. Olecronon process of ulna | |
| 1103. |
Which of the following muscle is an antagonistic member of Biceps brachii? |
| A. | Bracheoradialis |
| B. | Brachialis |
| C. | Intercostals |
| D. | Triceps |
| Answer» E. | |
| 1104. |
How many bones are present in the wrist? |
| A. | 4 bones |
| B. | 6 bones |
| C. | 8 bones |
| D. | 14 bones |
| Answer» D. 14 bones | |
| 1105. |
Which of the following statement is incorrect regarding the locomotion in Euglena? |
| A. | Move with the help of flagellum, attached to the anterior pole of the body. |
| B. | Flagellum whipping backwards moving the organism forward, and when moves forward the organism moves backward. |
| C. | Myonemes can change the direction of the body by making it to shorten from anterior to the posterior pole. |
| D. | None of these |
| Answer» C. Myonemes can change the direction of the body by making it to shorten from anterior to the posterior pole. | |
| 1106. |
How many vertebrae are in sacrum? |
| A. | 7 |
| B. | 12 |
| C. | 5 |
| D. | 4 |
| Answer» D. 4 | |
| 1107. |
Which of the following is the swiftest form of the locomotion? |
| A. | Plantigrade |
| B. | Digitigrade |
| C. | Unguligrade |
| D. | Hopping |
| Answer» D. Hopping | |
| 1108. |
Which of the following pairs of fins in a fish body are paired? |
| A. | Dorsal and ventral |
| B. | Pectoral and Pelvic |
| C. | Tail and anal |
| D. | All of these |
| Answer» C. Tail and anal | |
| 1109. |
How many vertebrae are present in thoracic region? |
| A. | 7 |
| B. | 12 |
| C. | 5 |
| D. | 4 |
| Answer» C. 5 | |
| 1110. |
Among the following organisms which shows the best adaptations for locomotion? |
| A. | Amoeba |
| B. | Earthworm |
| C. | Reptiles |
| D. | Amphibians |
| Answer» D. Amphibians | |
| 1111. |
How many vertebrae are present in lumbar region? |
| A. | 7 |
| B. | 12 |
| C. | 5 |
| D. | 4 |
| Answer» D. 4 | |
| 1112. |
There are __________ types of nutrients needed by plants besides light to carry out photosynthesis |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | Five |
| Answer» C. Four | |
| 1113. |
S-band locomotion is characteristically seen in___________? |
| A. | Bony fish |
| B. | Cartilaginous fish |
| C. | Fish like mammals |
| D. | All fishes |
| Answer» C. Fish like mammals | |
| 1114. |
The site/s where most of the uptake of water and minerals take place is/are__________? |
| A. | Root hairs |
| B. | Root cells |
| C. | Underground stem |
| D. | All of these |
| Answer» B. Root cells | |
| 1115. |
Which of the following bones are present in pectoral girdle? |
| A. | Clavicle |
| B. | Scapula |
| C. | Both of these |
| D. | None of these |
| Answer» D. None of these | |
| 1116. |
It is the measure of force with which blood pushes up against the walls of blood vessels. |
| A. | Stroke volume |
| B. | Cardiac output |
| C. | Blood pressure |
| D. | Blood flow |
| Answer» D. Blood flow | |
| 1117. |
The uptake of water in plants involves__________? |
| A. | Active transport |
| B. | Passive transport |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 1118. |
Active transport is dependent on____________? |
| A. | Photosynthesis |
| B. | Respiration |
| C. | Photophosporylation |
| D. | None of these |
| Answer» C. Photophosporylation | |
| 1119. |
The diffusion of ions along with water also takes place by mass flow system along the ________ path? |
| A. | Tonoplast |
| B. | Apoplast |
| C. | Symplast |
| D. | Vacuolar |
| Answer» C. Symplast | |
| 1120. |
The membrane of vacuoles is known as__________? |
| A. | Vacuoloplast |
| B. | Tonoplast |
| C. | Tanoplast |
| D. | All of these |
| Answer» C. Tanoplast | |
| 1121. |
In plants, the neighbouring cells are connected with one another by__________? |
| A. | Plasmodesmata |
| B. | Cell walls |
| C. | Vacuoles |
| D. | Both ‘A’ & ‘B’ |
| Answer» E. | |
| 1122. |
___________ component of cell wall has grreat affinity with water? |
| A. | Lignin |
| B. | Cellulose |
| C. | Pectin |
| D. | All of these |
| Answer» E. | |
| 1123. |
All of the follwing are blood clots except:___________? |
| A. | Thrombus |
| B. | Embolus |
| C. | Atheroma |
| D. | Hematoma |
| Answer» D. Hematoma | |
| 1124. |
___________ potential is the measure of the change in water potential of a system due to the presence of solute molecules? |
| A. | Osmotic |
| B. | Pressure |
| C. | Both of these |
| D. | None of these |
| Answer» B. Pressure | |
| 1125. |
The movement of water molecules from a region of higher water potential to a region of lower water potential (through membrane) |
| A. | Deffusion |
| B. | Osmosis |
| C. | Active transport |
| D. | None of these |
| Answer» C. Active transport | |
| 1126. |
Which of the following have thickest walls? |
| A. | Arteries |
| B. | Veins |
| C. | Capillaries |
| D. | None of these |
| Answer» B. Veins | |
| 1127. |
Commonly in other plants than tall ones the speed of upward movement of water is____________? |
| A. | 8mh-1 |
| B. | 1 mh-1 |
| C. | 7 mh-1 |
| D. | 4 mh-1 |
| Answer» C. 7 mh-1 | |
| 1128. |
Cuticular transpiration is _________ of total transpiration? |
| A. | 6-8% |
| B. | 5-7% |
| C. | 7-9% |
| D. | 4-6% |
| Answer» C. 7-9% | |
| 1129. |
Exceptionally the positive hydrostatic pressure generated by root pressure is about___________? |
| A. | 600 Kpa |
| B. | 800 Kpa |
| C. | 1000 Kpa |
| D. | 900 Kpa |
| Answer» C. 1000 Kpa | |
| 1130. |
A pressure created by active secretion of salts and other solutes from other cells into xylem sap is called___________? |
| A. | Transpiration pull |
| B. | Root pressure |
| C. | Osmotic pressure |
| D. | None of these |
| Answer» C. Osmotic pressure | |
| 1131. |
QRS complex represents____________? |
| A. | Atrial systole |
| B. | Ventricular systole |
| C. | Atrial diastole |
| D. | Ventricular diastole |
| Answer» C. Atrial diastole | |
| 1132. |
Pulling upward of water and dissolved minerals towards the leaves through the xylem tissue is called__________? |
| A. | Transpiration pull |
| B. | Root pressure |
| C. | Ascent of sap |
| D. | All of these |
| Answer» B. Root pressure | |
| 1133. |
Tricuspid valve is present_____________? |
| A. | Between right atrium and right ventricle |
| B. | Between left atrium and left ventricle |
| C. | At base of pulmonary artery |
| D. | At base of aorta |
| Answer» B. Between left atrium and left ventricle | |
| 1134. |
_________ give rise to macrophages, which destroy larger particles by phagocytosis. |
| A. | Nautrophils |
| B. | Basophila |
| C. | Monocyte |
| D. | Lymphocyte |
| Answer» D. Lymphocyte | |
| 1135. |
___________ function as multisensory hydraulic valve? |
| A. | Lenticels |
| B. | Guard cells |
| C. | Hydathods |
| D. | All of these |
| Answer» C. Hydathods | |
| 1136. |
Stomatal transpiration is __________ of total transpiration |
| A. | 90% |
| B. | 91% |
| C. | 93% |
| D. | 95% |
| Answer» B. 91% | |
| 1137. |
The opening and closing of stomata is directly controlled by the___________? |
| A. | Temperature |
| B. | pH |
| C. | Light |
| D. | None of these |
| Answer» D. None of these | |
| 1138. |
Which of the following fishes excrete large volume of diluted urine? |
| A. | Bony Marine fishes |
| B. | Fresh water fishes |
| C. | Both depending upon the surrounding water |
| D. | None of these |
| Answer» C. Both depending upon the surrounding water | |
| 1139. |
Addition of salts and other solutes from other cells into xylem sap, __________ the water potential of the xylem sap |
| A. | Increases |
| B. | Lowers |
| C. | Doesn’t effect |
| D. | Maintains |
| Answer» C. Doesn’t effect | |
| 1140. |
There are _________ hypothesis which may explain opening and closing of stomata? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 1141. |
Low level of CO2 favours _________ of the stomata. |
| A. | Opening |
| B. | Closure |
| C. | Both of these |
| D. | None of these |
| Answer» B. Closure | |
| 1142. |
Single circuit heart is found in_________? |
| A. | Fishes |
| B. | Amphibians |
| C. | Reptiles |
| D. | Mammals |
| Answer» B. Amphibians | |
| 1143. |
Symbionts which help plants in uptake of phosphorous and trace metals such as zinc and copper. |
| A. | Bacteria |
| B. | Viruses |
| C. | Fungi |
| D. | Cyanobacteria |
| Answer» D. Cyanobacteria | |
| 1144. |
Fishes, most of the invertebrates and amphibians are examples of ________ animals? |
| A. | Endotherms |
| B. | Ectotherms |
| C. | Heterotherms |
| D. | Homeotherms |
| Answer» C. Heterotherms | |
| 1145. |
The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________? |
| A. | Homeostasis |
| B. | Hemostasis |
| C. | Osmoregualtion |
| D. | Thermoregulation |
| Answer» D. Thermoregulation | |
| 1146. |
Amount of water required to excrete 1gN of Urea is_________? |
| A. | 1 ml |
| B. | 50 ml |
| C. | 100 ml |
| D. | 150 ml |
| Answer» C. 100 ml | |
| 1147. |
Which of the following represents osmoregulatory steps taken by hydrophytes? |
| A. | Increases transpiration by increasing the surface area of the leave |
| B. | Small and thick leaves to decrease the surface area proportional to the volume of the leave |
| C. | Stomata closing in sufficient supply, and opening in restricted supply of water |
| D. | None of these |
| Answer» B. Small and thick leaves to decrease the surface area proportional to the volume of the leave | |
| 1148. |
Which of the following marine fishes are considered direct descendents of fresh water ancestors? |
| A. | Hagfish |
| B. | Jelly Fish |
| C. | Star Fish |
| D. | Bony fishes |
| Answer» E. | |
| 1149. |
The main nitrogenous waste formed in the body of earthworm is/are___________? |
| A. | Ammonia |
| B. | Urea |
| C. | Uric acid |
| D. | Trimethylamine oxide |
| Answer» C. Uric acid | |
| 1150. |
Each ach nephridium of earthworm opens to the exterior by__________? |
| A. | Nephrostome |
| B. | Nephridiopore |
| C. | Flame cell |
| D. | Anus |
| Answer» C. Flame cell | |