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.
| 551. |
Polysome is formed during __________ process? |
| A. | Transcription |
| B. | Secretion |
| C. | Translation |
| D. | Division |
| Answer» D. Division | |
| 552. |
Polychaeta have____________? |
| A. | Tentacles |
| B. | Palps |
| C. | Eyes |
| D. | All of these |
| Answer» E. | |
| 553. |
Pollen grains in pinus have __________ for dispersal through wind? |
| A. | Flagella |
| B. | Cilia |
| C. | Wings |
| D. | Feathers |
| Answer» D. Feathers | |
| 554. |
Plasmodium belongs to__________? |
| A. | Ciliates |
| B. | Apicomplexans |
| C. | Actinopods |
| D. | Foraminferans |
| Answer» C. Actinopods | |
| 555. |
Pinus Taxus and Picea belong to_________________? |
| A. | Spheospsida |
| B. | Filicineae |
| C. | Gymnosperms |
| D. | Angiosperms |
| Answer» D. Angiosperms | |
| 556. |
Pin warm is common name used for__________? |
| A. | Rhabditis |
| B. | Enterobius vermicularis |
| C. | Ancylostoma duodenale |
| D. | Taenia solium |
| Answer» C. Ancylostoma duodenale | |
| 557. |
Pigment present in red algae is_____________? |
| A. | fucoxanthin |
| B. | phycocyanin |
| C. | phycoerythrin |
| D. | bilirubin |
| Answer» D. bilirubin | |
| 558. |
Photosystem II has molecules which absorbs maximum light of___________? |
| A. | 680 nm |
| B. | 100 m |
| C. | 700 nm |
| D. | 670 nm |
| Answer» B. 100 m | |
| 559. |
Photosynthesis is process in which ________ compounds of carbon (CO2) and hydrogen (H2O) are reduced to carbohydrate like (glucose) using light energy. |
| A. | Organic |
| B. | Energy rich |
| C. | Energy poor |
| D. | Reduced |
| Answer» D. Reduced | |
| 560. |
Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis? |
| A. | 1-2% |
| B. | 5% |
| C. | 10% |
| D. | 20% |
| Answer» D. 20% | |
| 561. |
Percentage of water in brain cells is_______? |
| A. | 20% |
| B. | 65% |
| C. | 85% |
| D. | 89% |
| Answer» D. 89% | |
| 562. |
Percentage of proteins in cell membrane is____________? |
| A. | 20-40% |
| B. | 40-50% |
| C. | 60-80% |
| D. | 80-100% |
| Answer» D. 80-100% | |
| 563. |
Percentage of CO2 carried as carboxyhaemoglobin is_________? |
| A. | 5% |
| B. | 70% |
| C. | 20% |
| D. | 10% |
| Answer» D. 10% | |
| 564. |
Pepsinogen is produced from__________? |
| A. | Mucous cells |
| B. | Parietal cells |
| C. | Zymogen cells |
| D. | All of these |
| Answer» D. All of these | |
| 565. |
Peptide bond is_____________? |
| A. | C-N link |
| B. | C- O lind |
| C. | N-H link |
| D. | C-H link |
| Answer» B. C- O lind | |
| 566. |
People living in high altitudes (like mountains) usually have a _________? |
| A. | smaller number of Red Blood Cells |
| B. | larger number of Red Blood Cells |
| C. | smaller number of White Blood Cells |
| D. | larger number of White Blood Cells |
| Answer» C. smaller number of White Blood Cells | |
| 567. |
Penicillium reproduce via___________? |
| A. | Spores |
| B. | Conidia |
| C. | Budding |
| D. | Fragmentation |
| Answer» C. Budding | |
| 568. |
PCR stand for _________? |
| A. | Polymerase chain reaction |
| B. | Poly carbomyl reaction |
| C. | Peptide chain reaction |
| D. | Pentapeptide chain reaction |
| Answer» B. Poly carbomyl reaction | |
| 569. |
Parkinson is a disease of_________? |
| A. | Lungs |
| B. | Eyes |
| C. | Brain |
| D. | Bones |
| Answer» D. Bones | |
| 570. |
Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called___________? |
| A. | Mildew |
| B. | Constricting ring |
| C. | Haustoria |
| D. | All of these |
| Answer» D. All of these | |
| 571. |
Parasites capable of living independently of its host at times is called as ___________ parasite? |
| A. | Obligate |
| B. | Strict |
| C. | Facultative |
| D. | Endoparasite |
| Answer» D. Endoparasite | |
| 572. |
Parabronchi are open at ______________ end/s? |
| A. | Single |
| B. | Both |
| C. | Do not have opening |
| D. | None of these |
| Answer» C. Do not have opening | |
| 573. |
Parabronchi are present in__________? |
| A. | cockroach |
| B. | frog |
| C. | fish |
| D. | birds |
| Answer» E. | |
| 574. |
Panting is a representative of which mechanism? |
| A. | Pigmentation |
| B. | Respiration |
| C. | Evaporative cooling |
| D. | Excretion |
| Answer» D. Excretion | |
| 575. |
Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are pinched off from ________ surface of Golgi apparatus: |
| A. | Forming face |
| B. | Maturating face |
| C. | Any of them |
| D. | None of these |
| Answer» C. Any of them | |
| 576. |
Oyster mushroom is an example of predator fungi which attack on______________? |
| A. | Pin warms |
| B. | Tape worms |
| C. | Round worms |
| D. | Platehelminthes |
| Answer» D. Platehelminthes | |
| 577. |
Ozone depletion occurs commonly due to_______________? |
| A. | Carbon dioxide |
| B. | Chlorofluorocarbons |
| C. | UV rays |
| D. | Deforestation |
| Answer» C. UV rays | |
| 578. |
Oxygen is the production of____________? |
| A. | Mitochonderia |
| B. | Chloroplast |
| C. | Peroxisomes |
| D. | Both A & B |
| Answer» C. Peroxisomes | |
| 579. |
Oxygen contents per liter of air is____________? |
| A. | 10 ml |
| B. | 100 ml |
| C. | 200 ml |
| D. | 300 ml |
| Answer» D. 300 ml | |
| 580. |
Oxygen accounts for __________ percent of totals human body mass? |
| A. | 65% |
| B. | 18% |
| C. | 10% |
| D. | 3% |
| Answer» B. 18% | |
| 581. |
Oxygen accounts for ____ % of totals human body mass? |
| A. | 65% |
| B. | 18% |
| C. | 10% |
| D. | 3% |
| Answer» B. 18% | |
| 582. |
Outer surface of bones is covered by a dense layer of connective tissue, called as ___________ ? |
| A. | Periosteum |
| B. | Woven bone |
| C. | Epithelium lining |
| D. | Connective lining |
| Answer» B. Woven bone | |
| 583. |
Outside the thallus of Marchantia there are special structures called__________? |
| A. | stem tuber |
| B. | rhizoids |
| C. | sporangium |
| D. | none of these |
| Answer» C. sporangium | |
| 584. |
Out of total organisms on earth, _____________are vascular plants? |
| A. | 53.10% |
| B. | 19.90% |
| C. | 17.60% |
| D. | 9.40% |
| Answer» D. 9.40% | |
| 585. |
Out of 92 naturally occurring chemical elements how many are considered as bio-elements__________? |
| A. | 6 |
| B. | 16 |
| C. | 26 |
| D. | 15 |
| Answer» C. 26 | |
| 586. |
Out of 92 naturally occurring chemical elements how many are considered as bio-elements? |
| A. | 6 |
| B. | 16 |
| C. | 26 |
| D. | 15 |
| Answer» C. 26 | |
| 587. |
Other name for Kingdom monera is_______________? |
| A. | Protoctista |
| B. | Prokaryotae |
| C. | Archae |
| D. | None of these |
| Answer» C. Archae | |
| 588. |
Organisms of which of the following kingdom have absorptive mode of nutrition______________? |
| A. | Prokaryotae |
| B. | Protoctista |
| C. | Animalia |
| D. | Fungi |
| Answer» E. | |
| 589. |
Organelles are_______________? |
| A. | Unicellular structures |
| B. | Multi-cellular structures |
| C. | Sub-cellular structures |
| D. | Non-cellular structures |
| Answer» D. Non-cellular structures | |
| 590. |
Optimal temperature of enzymes present in human body is_____________? |
| A. | 27?C |
| B. | 37?C |
| C. | 47?C |
| D. | 30?C |
| Answer» C. 47?C | |
| 591. |
Operculum is present in_____________? |
| A. | bony fish |
| B. | sea fish |
| C. | cartilaginous fish |
| D. | none of these |
| Answer» B. sea fish | |
| 592. |
Open circulatory system can contain_________? |
| A. | Red Blood Cells |
| B. | White Blood Cells |
| C. | Haemoglobin |
| D. | All of these |
| Answer» C. Haemoglobin | |
| 593. |
Only myosine is present in_____________? |
| A. | A band |
| B. | 1 band |
| C. | H zone |
| D. | Sarcomere |
| Answer» D. Sarcomere | |
| 594. |
One of the commonest cause of food poisoning are the toxins produced by__________? |
| A. | Azobacter |
| B. | Nitrosomonas |
| C. | Campylobacter |
| D. | Nitrobacter |
| Answer» D. Nitrobacter | |
| 595. |
One celled green ptotists are included in___________? |
| A. | Monera |
| B. | Algae |
| C. | Slime molds |
| D. | Plants |
| Answer» C. Slime molds | |
| 596. |
On wound __________ fight foreign particles, like bacteria? |
| A. | White Blood cells |
| B. | Red Blood Cells |
| C. | Platelets |
| D. | Plasma |
| Answer» B. Red Blood Cells | |
| 597. |
On which of the following site the posterior pituitary hormone acts predominantly? |
| A. | Proximal convoluted tubule |
| B. | Descending limb of loop of Henle |
| C. | Ascending limb of loop of Henle |
| D. | Collecting tubules |
| Answer» E. | |
| 598. |
On which of the following component of chloroplast chlorophyll is arranged? |
| A. | Cell membrane |
| B. | Matrix |
| C. | Thylakoids |
| D. | Stroma |
| Answer» D. Stroma | |
| 599. |
On the basis of collected facts and figures, a scientist formulates a factitive statement called: |
| A. | Observation |
| B. | Research work |
| C. | Hypothesis |
| D. | Inductive Reasoning |
| Answer» D. Inductive Reasoning | |
| 600. |
On average there are _______ or more thylakoid per granum? |
| A. | 60 |
| B. | 50 |
| C. | 40 |
| D. | 70 |
| Answer» C. 40 | |