MCQOPTIONS
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MCQOPTIONS
This section includes 1212 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 701. |
“lub” sound is produced after _________ ? |
| A. | The ventricles are fully contracted |
| B. | The ventricles start to relax |
| C. | The bicuspid and tricuspid valves suddenly close |
| D. | The semilunar valves are closed |
| Answer» D. The semilunar valves are closed | |
| 702. |
Low level of CO2 favours _________ of the stomata. |
| A. | Opening |
| B. | Closure |
| C. | Both of these |
| D. | None of these |
| Answer» B. Closure | |
| 703. |
Loss of appetite due to the fear of becoming obese is____________? |
| A. | Anorexia nervosa |
| B. | Bulimia nervosa |
| C. | Piles |
| D. | Dyspepsia |
| Answer» B. Bulimia nervosa | |
| 704. |
Locomotory structures are not found in which of the following group? |
| A. | Amoebas |
| B. | Zooflagellates |
| C. | Ciliates |
| D. | Apicomplexans |
| Answer» E. | |
| 705. |
Locomotion in diatoms is carried out with the help of__________? |
| A. | Valve |
| B. | Raphe |
| C. | Pseudopodium |
| D. | Cilia or flagella |
| Answer» C. Pseudopodium | |
| 706. |
Lock and Key model was proposed by______________? |
| A. | Emil Fischer |
| B. | Koshland |
| C. | Robin Williams |
| D. | Rudolph Virchow |
| Answer» B. Koshland | |
| 707. |
Liver fluke is parasite in the liver of__________? |
| A. | cattle |
| B. | sheep |
| C. | goat |
| D. | all of these |
| Answer» E. | |
| 708. |
Lipids are soluble in which of the following_______________? |
| A. | Water |
| B. | Ether |
| C. | All solvents |
| D. | Not in any of the above |
| Answer» C. All solvents | |
| 709. |
Lipid molecules can store double amount of energy as compared to same amount of carbohydrate because of high number of__________________? |
| A. | C-C bonds |
| B. | C-H bonds |
| C. | C-N bonds |
| D. | C-O bonds |
| Answer» C. C-N bonds | |
| 710. |
Lime stone deposits are formed from__________? |
| A. | Zooflagellates |
| B. | Foraminferans |
| C. | Aetinopods |
| D. | Apicomplexans |
| Answer» C. Aetinopods | |
| 711. |
Like enzymes , co enzyme can be used ? |
| A. | only once |
| B. | only few times |
| C. | again and again |
| D. | non of above |
| Answer» D. non of above | |
| 712. |
Light reaction takes place on/in____________? |
| A. | Thylakoid |
| B. | Storma |
| C. | Chloroplast |
| D. | Grana |
| Answer» E. | |
| 713. |
Lichen is a symbiotic mutualistic association of fungi with______________? |
| A. | Autotrophs |
| B. | Roots of vascular plants |
| C. | Green algae and cyanobacterium |
| D. | Leguminous plants |
| Answer» D. Leguminous plants | |
| 714. |
Lenticels look like__________? |
| A. | A big pore |
| B. | Stoma |
| C. | Sponge |
| D. | Cars or small protusions |
| Answer» E. | |
| 715. |
Lenticular transpiration is ___________ of total transpiration? |
| A. | 2-3% |
| B. | 1-3% |
| C. | 1-4% |
| D. | 1-2% |
| Answer» E. | |
| 716. |
Length of membranous urethra is about ___________ ? |
| A. | 1 cm |
| B. | 2 cm |
| C. | 5 cm |
| D. | 9 cm |
| Answer» B. 2 cm | |
| 717. |
Lactometer is used for__________? |
| A. | Ship |
| B. | Milk |
| C. | Honey |
| D. | None |
| Answer» C. Honey | |
| 718. |
Kingdom Protoctista includes____________? |
| A. | Fungi |
| B. | Prokaryotes |
| C. | protists |
| D. | Piantae |
| Answer» D. Piantae | |
| 719. |
Kingdom protista includes_____________phyla? |
| A. | 27 |
| B. | 28 |
| C. | 26 |
| D. | 29 |
| Answer» B. 28 | |
| 720. |
Kingdom Fungi includes_______________? |
| A. | A cellular, eukaryotic organisms |
| B. | Non-chlorophylls, multicellular eukaiyotlc organisms |
| C. | Non-chlorophylls, multioellular,thailophytic organisms |
| D. | Chlorophyllus, multicellular, eukaryotic Organisms |
| Answer» D. Chlorophyllus, multicellular, eukaryotic Organisms | |
| 721. |
Kind of respiration through which skeletal muscles of human body gets the energy is ________ ? |
| A. | Acidic respiration |
| B. | Anaerobic respiration |
| C. | Aerobic respiration |
| D. | Nitrogenous respiration |
| Answer» C. Aerobic respiration | |
| 722. |
Kind of cellular respiration which occurs in presence of oxygen is _________ ? |
| A. | Anaerobic respiration |
| B. | Aerobic respiration |
| C. | Nitrogenous respiration |
| D. | Acidic respiration |
| Answer» B. Aerobic respiration | |
| 723. |
Keto group is represented as___________? |
| A. | CO |
| B. | C-COO-C |
| C. | HCOH |
| D. | HOH |
| Answer» B. C-COO-C | |
| 724. |
Kangaroo rat most probably would be found in___________? |
| A. | Tropical rain forest |
| B. | Tundra |
| C. | Grass land |
| D. | Desert |
| Answer» E. | |
| 725. |
Kangaroo has an abdominal pouch known as__________? |
| A. | placenta |
| B. | guttural pouch |
| C. | marsupial |
| D. | all of these |
| Answer» D. all of these | |
| 726. |
Joints present in skull are example of_______________? |
| A. | Fibrous joints |
| B. | Cartilaginous joints |
| C. | Synovial Joints |
| D. | Slightly moveable joints |
| Answer» B. Cartilaginous joints | |
| 727. |
Joints between flat bones of skull are termed as ____________ ? |
| A. | Suture |
| B. | Sutural joints |
| C. | Syndesmosis |
| D. | Both A and B |
| Answer» E. | |
| 728. |
Joint between two parietal bones, which is infact immovable one is an example of_________? |
| A. | Fibrous joints |
| B. | Cartilaginous joints |
| C. | Synovial joints |
| D. | None of these |
| Answer» B. Cartilaginous joints | |
| 729. |
It is very serious disease of brain which is caused by fungi________? |
| A. | ring worm |
| B. | meningitis |
| C. | hepatitis |
| D. | none of these |
| Answer» C. hepatitis | |
| 730. |
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 | |
| 731. |
It is stiff rod of special cells surrounded by connecive tissue present in the mid -dorsal region and appears in the embryos of all chordates |
| A. | Placenta |
| B. | Notochord |
| C. | Cranianta |
| D. | Ligule |
| Answer» C. Cranianta | |
| 732. |
It is the discharge of blood from blood vessels? |
| A. | Myocardial infarction |
| B. | Cerebral infarction |
| C. | Cerebral Hemorrhage |
| D. | Thromboembolism |
| Answer» D. Thromboembolism | |
| 733. |
It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect: |
| A. | Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones |
| B. | Older sediment layers have less amount of these reaioactive isotopes as that of the young ones. |
| C. | Older sediment layers have greater amount of these radioactive isotopes as that of the young ones. |
| D. | Older sediment layers did not have these radioactive isotopes |
| Answer» C. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones. | |
| 734. |
It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect? |
| A. | Older sediment layers have equal amount of these radioactive isotopes as that of the young ones |
| B. | Older sediment layers have less amount of these radioactive isotopes as that of the young ones. |
| C. | Older sediment layers have greater amount of these radioactive isotopes as that of the young ones. |
| D. | Older sediment layers did not have these radioactive isotopes |
| Answer» C. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones. | |
| 735. |
It is one of the convulsive disorders of nerves which are characterized by abrupt transient symptoms of motor, sensory, psychic or autonomic nature________________? |
| A. | Parkinson’s disease |
| B. | Epilepsy |
| C. | Alzheimer’s discease |
| D. | Dementia |
| Answer» C. Alzheimer’s discease | |
| 736. |
It has been estimated that in a normal person plasma constitutes about ________ by volume of blood. |
| A. | 35% |
| B. | 45% |
| C. | 55% |
| D. | 75% |
| Answer» D. 75% | |
| 737. |
___________ is used to relieve one kind of headache, migraine? |
| A. | Pencillin |
| B. | Lovastatin |
| C. | Cyclosporine |
| D. | Ergotin |
| Answer» E. | |
| 738. |
___________ is the potential surce of chemical energy for cellular activities? |
| A. | C-H bond |
| B. | C-O bond |
| C. | C-N bond |
| D. | P-O-C bond |
| Answer» B. C-O bond | |
| 739. |
____________ is simplest form of learning. |
| A. | Imprinting |
| B. | Habituation |
| C. | Insight learning |
| D. | Latent learning |
| Answer» C. Insight learning | |
| 740. |
__________ is example of pure form of cellulose? |
| A. | Silk |
| B. | Wool |
| C. | Cotton |
| D. | Paper |
| Answer» D. Paper | |
| 741. |
__________ is essential for the formation of hemoglobin. |
| A. | Calcium |
| B. | Iron |
| C. | Water |
| D. | Carbohydrates |
| Answer» C. Water | |
| 742. |
___________ is concerned with cell secretions? |
| A. | Endoplasmic reticulum |
| B. | Golgi complex |
| C. | Lysosomes |
| D. | Cell membrane |
| Answer» C. Lysosomes | |
| 743. |
____________is about 2.4 meter in length and comprising about two fifth of the small intestine? |
| A. | Duodenum |
| B. | Jejunum |
| C. | Ileum |
| D. | Caecum |
| Answer» C. Ileum | |
| 744. |
_____________ is a scientific word for human beings? |
| A. | Animals |
| B. | Homo sepions |
| C. | Omnivore |
| D. | Consumer |
| Answer» C. Omnivore | |
| 745. |
_____________ is a nervous disorder characterized by involuntary tremors, diminished motor power and rigidity? |
| A. | Epilepsy |
| B. | Meningitis |
| C. | Alzheimer’s disease |
| D. | Parkinson’s disease |
| Answer» E. | |
| 746. |
__________is a condition in which there is an absence of oxygen supply to an organ’s tissues? |
| A. | Anoxia |
| B. | Anorexia |
| C. | Hypoxia |
| D. | Enuresis |
| Answer» B. Anorexia | |
| 747. |
Introduction of vaccine within the body to produce immunity is an example of____________? |
| A. | Artificially induced active immunity |
| B. | Naturally induced active immunity |
| C. | Artificially induced passive immunity |
| D. | Naturally induced passive immunity |
| Answer» B. Naturally induced active immunity | |
| 748. |
Interconversion of carbohydrates proteins and lipids in living cells are an example of____________? |
| A. | Coordinated catabolic activities |
| B. | Coordinated anabolic activities |
| C. | Both A and B |
| D. | Any one |
| Answer» D. Any one | |
| 749. |
Intelligence is under the control of____________? |
| A. | Cerebrum |
| B. | Cerebellum |
| C. | Thalamus |
| D. | Hypothalamus |
| Answer» B. Cerebellum | |
| 750. |
Intake of liquid material by cell membrane is called___________? |
| A. | Endocytosis |
| B. | Exocytosis |
| C. | Phagocytosis |
| D. | Pinocytosis |
| Answer» E. | |