MCQOPTIONS
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MCQOPTIONS
This section includes 1075 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 651. |
Deficiency of vitamin D in children causes |
| A. | beriberi |
| B. | pellagra |
| C. | rickets |
| D. | scurvy |
| Answer» D. scurvy | |
| 652. |
The concept of survival of the fittest was first advocated by |
| A. | Oparin |
| B. | Darwin |
| C. | Spencer |
| D. | Haeckel |
| Answer» C. Spencer | |
| 653. |
Animals having open circulatory system possesses : |
| A. | coelenteron |
| B. | spongocoel |
| C. | pseudocoel |
| D. | haemocoel |
| Answer» E. | |
| 654. |
The locomotory organ of Amoeba is |
| A. | Pseudopodia |
| B. | Parapodia |
| C. | Flagella |
| D. | Cilia |
| Answer» B. Parapodia | |
| 655. |
During photosynthesis in plants, the gas evolved is |
| A. | Carbon dioxide |
| B. | Nitrogen |
| C. | Oxygen |
| D. | Hydrogen |
| Answer» D. Hydrogen | |
| 656. |
Bleeding of gums and loosening of teeth is caused due to deficiency of |
| A. | Vitamin A |
| B. | Vitamin B |
| C. | |
| D. | Vitamin C |
| E. | Vitamin D |
| Answer» D. Vitamin C | |
| 657. |
Which of the following is known as grave yard of RBCs? |
| A. | Liver |
| B. | Bone marrow |
| C. | |
| D. | Spleen |
| E. | Appendix |
| Answer» D. Spleen | |
| 658. |
Number of Eyes in an Earthworm is |
| A. | one |
| B. | two |
| C. | many |
| D. | no eyes |
| Answer» E. | |
| 659. |
When we touch leaves of Touch me not plant , they close, these movements are called |
| A. | Photonastic movements |
| B. | nyctinastic movements |
| C. | seismonastic movements |
| D. | chemonastric movements |
| Answer» D. chemonastric movements | |
| 660. |
What is ALZHEIMER S disease ? |
| A. | It is a disorder of the brain |
| B. | It affects liver |
| C. | It affects kidney |
| D. | It affects human immune system |
| Answer» B. It affects liver | |
| 661. |
Which of the fol lowing is a Vitamin? |
| A. | Keratin |
| B. | Riboflavin |
| C. | Insulin |
| D. | Adrenalin |
| Answer» C. Insulin | |
| 662. |
The number of chromosomes present in normal human being are |
| A. | 23 |
| B. | 46 |
| C. | 22 |
| D. | 48 |
| Answer» C. 22 | |
| 663. |
Afla toxins are produced by |
| A. | Bacteria |
| B. | Algae |
| C. | Viruses |
| D. | Fungi |
| Answer» D. Fungi | |
| 664. |
Yeast is an important source of |
| A. | vitamin B |
| B. | invertase |
| C. | vitamin C |
| D. | protein |
| Answer» B. invertase | |
| 665. |
The end product of the digestion of starch in the alimentary canal is |
| A. | glucose |
| B. | galactose |
| C. | maltose |
| D. | isomaltose |
| Answer» B. galactose | |
| 666. |
The pancreas secretes |
| A. | Insulin |
| B. | Bile juice |
| C. | Peptic juice |
| D. | None of these |
| Answer» B. Bile juice | |
| 667. |
Which of the following diseases is spread through contaminated food? |
| A. | Malaria |
| B. | Tetanus |
| C. | Typhoid |
| D. | Mumps |
| Answer» D. Mumps | |
| 668. |
An instrument for measuring blood pressure is called |
| A. | Barometer |
| B. | Spirometer |
| C. | Sphygmomanometer |
| D. | Haemocytometer |
| Answer» D. Haemocytometer | |
| 669. |
What is the normal blood sugar level of a human being? |
| A. | Close to 10 mg/ml |
| B. | 120 150 mg/dl |
| C. | 80 90 mg/dl |
| D. | 150 200 mg/dl |
| Answer» C. 80 90 mg/dl | |
| 670. |
Which one of the following is the infective stage of the Malarial Parasite? |
| A. | schigozoite |
| B. | trophozoite |
| C. | sporoblast |
| D. | sporozoite |
| Answer» E. | |
| 671. |
Match correctly the infectious agents given in List I with the diseases caused by them given in List II : |
| A. | a-1, b-2, c-4, d-3 |
| B. | a-2, b-4, c-1, d-3 |
| C. | a-3, b-1, c-2, d-4 |
| D. | a-4, b-2, c-3, d-1 |
| Answer» C. a-3, b-1, c-2, d-4 | |
| 672. |
The number of heart beats on an average in an adult human is in the range of |
| A. | 60-65 |
| B. | 66-70 |
| C. | 71-80 |
| D. | 85-90 |
| Answer» D. 85-90 | |
| 673. |
Food crops comprise. |
| A. | Cotton, Tobacco, Sugarcane |
| B. | Linseed, Castor, Turmeric |
| C. | Foodgrains, Pulses, Edible oilseeds |
| D. | Jute, Cotton, Chillies |
| Answer» D. Jute, Cotton, Chillies | |
| 674. |
The plants which grow well, only in light are known as |
| A. | Sciophilous |
| B. | Xerophytes |
| C. | Heliophytes |
| D. | Epiphytes |
| Answer» D. Epiphytes | |
| 675. |
The total number of bones in man are |
| A. | 212 |
| B. | 206 |
| C. | 202 |
| D. | 200 |
| Answer» C. 202 | |
| 676. |
In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is |
| A. | Diffusion |
| B. | Absorption |
| C. | Osmosis |
| D. | Electrophoresis |
| Answer» D. Electrophoresis | |
| 677. |
The term Rh factor refers to |
| A. | Rhesus factor |
| B. | Rheumatoid factor |
| C. | Renal factor |
| D. | Rhombic factor |
| Answer» B. Rheumatoid factor | |
| 678. |
The pigment which gives colour to the human skin is |
| A. | Melanin |
| B. | Rhodopsin |
| C. | Iodopsin |
| D. | Anthocyanin |
| Answer» B. Rhodopsin | |
| 679. |
The acid present in gastric juice is |
| A. | Hydrochloric |
| B. | Nitric |
| C. | Sulphuric |
| D. | Ascorbic |
| Answer» B. Nitric | |
| 680. |
When a single gene controls the expression of more than one character, it is said to be |
| A. | Heterotrophic |
| B. | Autotrophic |
| C. | Allotropic |
| D. | Pleiotropic |
| Answer» E. | |
| 681. |
Which of the following is an anti oxidant ? |
| A. | Vitamin-C |
| B. | Vitamin-K |
| C. | Vitamin-B |
| D. | |
| E. | Vitamin-D |
| Answer» B. Vitamin-K | |
| 682. |
In Scorpion ,poison is present in the |
| A. | leg |
| B. | hand |
| C. | mouth |
| D. | sting |
| Answer» E. | |
| 683. |
The largest White Blood Corpuscle is |
| A. | Lymphocyte |
| B. | Monocyte |
| C. | Thrombocyte |
| D. | Erythrocyte |
| Answer» C. Thrombocyte | |
| 684. |
Which of the following organism possesses characteristics of a plant and an animal? |
| A. | Euglena |
| B. | Mycoplasma |
| C. | Paramecium |
| D. | Chlorella |
| Answer» B. Mycoplasma | |
| 685. |
A warm-blooded animal is |
| A. | Shark |
| B. | Snake |
| C. | Bat |
| D. | Ascorbic |
| Answer» D. Ascorbic | |
| 686. |
The human skeleton contains aorund |
| A. | 110 bones |
| B. | 210 bones |
| C. | 150 bones |
| D. | 250 bones |
| E. | None of these |
| Answer» F. | |
| 687. |
Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? |
| A. | Water hyacinth |
| B. | Elephant Grass |
| C. | Parthenium |
| D. | |
| E. | Both (A) and (C) |
| Answer» E. Both (A) and (C) | |
| 688. |
The smallest size of a cell that can be seen with naked eye is: |
| A. | 1 micron |
| B. | 10 micron |
| C. | 100 micron |
| D. | 1000 micron |
| Answer» D. 1000 micron | |
| 689. |
The best method of disposal of garbage is |
| A. | Vermiculture |
| B. | Incineration |
| C. | Land filling |
| D. | Burning |
| Answer» D. Burning | |
| 690. |
Development of an egg without fertilization is called |
| A. | Gametogenesis |
| B. | Parthenogenesis |
| C. | Oogenesis |
| D. | Metamorphosis |
| Answer» C. Oogenesis | |
| 691. |
Which of the following does not act both as an exocrine gland and as an endocrine gland ? |
| A. | Pituitary |
| B. | Pancreas |
| C. | Testis |
| D. | Ovary |
| Answer» B. Pancreas | |
| 692. |
Blood groups were discovered by |
| A. | Altmann |
| B. | Landsteiner |
| C. | Losch |
| D. | Ronald Ross |
| Answer» C. Losch | |
| 693. |
Which of the following is an example of tissue? |
| A. | Brain |
| B. | Blood |
| C. | Liver |
| D. | Stomach |
| Answer» C. Liver | |
| 694. |
Which one of the following is not an artificial sweetener ? |
| A. | Fructose |
| B. | Saccharin |
| C. | Sucralose |
| D. | Aspartame |
| Answer» B. Saccharin | |
| 695. |
The animal which can tolerate more summer heat is |
| A. | Buffalo |
| B. | Cow |
| C. | Goat |
| D. | Donkey |
| Answer» D. Donkey | |
| 696. |
Rinderpest disease of Cattle is caused by |
| A. | Insects |
| B. | Bacteria |
| C. | Virus |
| D. | Protozoa |
| Answer» D. Protozoa | |
| 697. |
According to Darwin s Theory of Evolution, long necks in giraffes |
| A. | arose because of constant attempt to reach leaves on tall trees, generation after generation |
| B. | do not give them any special advantage and is just an accident |
| C. | |
| D. | give them advantage in finding food, because of which those with long necks survive |
| E. | is a result of the special weather prevalent in African Savannah |
| Answer» B. do not give them any special advantage and is just an accident | |
| 698. |
The tree popularly known as Green Gold , but which is an ecological disaster, is |
| A. | Banyan |
| B. | Peepal |
| C. | Eucalyptus |
| D. | None of these |
| Answer» D. None of these | |
| 699. |
The human heart is enclosed in the |
| A. | Pericardium |
| B. | Pleura |
| C. | Duramater |
| D. | Conjunctive |
| Answer» B. Pleura | |
| 700. |
Founder of Homeopathy is |
| A. | Samuel Hahnemann |
| B. | Hippocrates |
| C. | Charaka |
| D. | Sushrutha |
| Answer» B. Hippocrates | |