MCQOPTIONS
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MCQOPTIONS
This section includes 607 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
Blue green algae possess chlorophlyll along with a pigment known as |
| A. | hlorophy |
| B. | hycobilin |
| C. | aemoglobin |
| D. | one of the above |
| Answer» C. aemoglobin | |
| 252. |
Kelps are obtained from |
| A. | lgae |
| B. | arine algae |
| C. | resh water algae |
| D. | ichens |
| Answer» C. resh water algae | |
| 253. |
Bacteria are (were) considered more as plants than animals because of the presence of |
| A. | mall nucleus |
| B. | lasma membrane |
| C. | ell wall |
| D. | pore formation |
| Answer» D. pore formation | |
| 254. |
Amoeba moves in water with the help of locomotory organs called |
| A. | etae |
| B. | ube feet |
| C. | seudopodia |
| D. | lame cell |
| Answer» D. lame cell | |
| 255. |
The unicellular algae used to supply and regulate the oxygen in space programmes is |
| A. | pyrogyra |
| B. | hlorella |
| C. | lothrix |
| D. | dogonium |
| Answer» C. lothrix | |
| 256. |
Which one of the following scientists first time saw bacteria through a microscope made by himself ? |
| A. | ntonie Van Leeuwenhoek |
| B. | ouis Pasteur |
| C. | obert Hooke |
| D. | obert Virchow |
| Answer» B. ouis Pasteur | |
| 257. |
The horizonatally growing hyphae of Rhizopus are called |
| A. | hizoids |
| B. | tolons |
| C. | porangiophores |
| D. | oldfast |
| Answer» C. porangiophores | |
| 258. |
Eutrophication is the result of |
| A. | ryophytes |
| B. | lgae and aquatic plants |
| C. | ymnosperm |
| D. | teridophytes |
| Answer» C. ymnosperm | |
| 259. |
Chemicals like ________ may be added to different foods or fruits to prevent or retard the growth microorganisms. |
| A. | otasium |
| B. | alcium |
| C. | otassium metabisulphite |
| D. | ulphur |
| Answer» D. ulphur | |
| 260. |
They have also proved extremely useful in our quest of knowledge of outer space. |
| A. | acteria |
| B. | ungi |
| C. | easts |
| D. | one of the above |
| Answer» D. one of the above | |
| 261. |
Fossils of blue green algae were found in lime stones with the age almost as old as |
| A. | .3 Billion years |
| B. | .3 Billion years |
| C. | .3 Billion years |
| D. | .3 Billion years |
| Answer» C. .3 Billion years | |
| 262. |
The litmus paper utilized in the chemical laboratories is made of : |
| A. | ern |
| B. | lgae |
| C. | ichen |
| D. | ungi |
| Answer» D. ungi | |
| 263. |
A viral species is a group of viruses that has |
| A. | ame ecological niche |
| B. | ame genetic information |
| C. | oth A & B |
| D. | one of the above |
| Answer» D. one of the above | |
| 264. |
Branch of biology which deals with the study processing and preservation of food is called |
| A. | ood technology |
| B. | ood biotechnology |
| C. | ood preservation |
| D. | one of these |
| Answer» B. ood biotechnology | |
| 265. |
Cyanobacteria are also known as |
| A. | utotrophic bacteria |
| B. | lue Green Algae |
| C. | ed Brown Algae |
| D. | one of the above |
| Answer» C. ed Brown Algae | |
| 266. |
In ________ cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm. |
| A. | irus |
| B. | lgae |
| C. | acteria |
| D. | oss |
| Answer» D. oss | |
| 267. |
It is commonly found in the bottom tidal pools? |
| A. | pirogyra |
| B. | lva |
| C. | tiogeoclonium |
| D. | hlamydomonas |
| Answer» C. tiogeoclonium | |
| 268. |
The DNA bacterium consists of ring-like pieces known as the |
| A. | lasmids |
| B. | enes |
| C. | hromosomes |
| D. | esosomes |
| Answer» B. enes | |
| 269. |
Mycology is the branch of botany in which we study about |
| A. | lgae |
| B. | ungi |
| C. | acteria |
| D. | irus |
| Answer» C. acteria | |
| 270. |
Which of the following is known as master gland in man? |
| A. | ancrease |
| B. | ituitary |
| C. | drenal |
| D. | hyroid |
| Answer» C. drenal | |
| 271. |
________ is a thyroid hormone which controls the balance of calcium in the body. |
| A. | alcitonin |
| B. | hyroxine |
| C. | almodulin |
| D. | ll of these |
| Answer» B. hyroxine | |
| 272. |
Which of the following systems in man is affected by the bite of cobra ? |
| A. | igestive |
| B. | ervous |
| C. | xcretory |
| D. | irculatory |
| Answer» C. xcretory | |
| 273. |
Branch of biology in which we study about relationship between living and their environment. |
| A. | hysiology |
| B. | enetics |
| C. | cology |
| D. | eology |
| Answer» D. eology | |
| 274. |
When we consume the goat or sheep beef then we are |
| A. | rimary consumer |
| B. | econdary consumer |
| C. | ertiary consumer |
| D. | one of the above |
| Answer» C. ertiary consumer | |
| 275. |
The study of relation of animals and plants to their surroundings is called ________ |
| A. | cology |
| B. | thrology |
| C. | enealogy |
| D. | conology |
| Answer» B. thrology | |
| 276. |
Study of parasitic organism is called |
| A. | arazology |
| B. | arasitology |
| C. | oth a and b |
| D. | one of these |
| Answer» C. oth a and b | |
| 277. |
Which is called as triple vaccine? |
| A. | CG |
| B. | TP |
| C. | AB |
| D. | ll of the above |
| Answer» C. AB | |
| 278. |
Anopheles mosquito carries Plasmodium which causes malaria in |
| A. | umans |
| B. | nimals |
| C. | parrows |
| D. | ll of the above |
| Answer» B. nimals | |
| 279. |
Which one among the following water-borne diseases is not caused by a bacteria ? |
| A. | holera |
| B. | yphoid |
| C. | acillary dysentery |
| D. | epatitis A |
| Answer» E. | |
| 280. |
When a disease break out and spread from one place to another affecting large number of peoples it is called |
| A. | demic |
| B. | pidemic |
| C. | ndemic |
| D. | poradic |
| Answer» C. ndemic | |
| 281. |
Diphtheria disease is caused by |
| A. | orynebacterium diphtheria |
| B. | iplococus pneumo |
| C. | asteurella pestis |
| D. | treptomyces species |
| Answer» B. iplococus pneumo | |
| 282. |
Branch of science which deal with the study of causative agent of disease is |
| A. | cology |
| B. | tiology |
| C. | ugenics |
| D. | uthenics |
| Answer» C. ugenics | |
| 283. |
Sickle-cell anemia is a disease caused due to the abnormality in |
| A. | hite blood cell |
| B. | ed blood cell |
| C. | hrombocytes |
| D. | lood plasma composition |
| Answer» C. hrombocytes | |
| 284. |
In human beings influenza is caused by |
| A. | acteria |
| B. | iruses |
| C. | ungi |
| D. | lgae |
| Answer» C. ungi | |
| 285. |
Which is the cause of malaria infection? |
| A. | acteria |
| B. | lasmodium |
| C. | lgae |
| D. | iruses |
| Answer» C. lgae | |
| 286. |
The colour of Hemoglobin is |
| A. | ed |
| B. | ellow |
| C. | hite |
| D. | olorless |
| Answer» B. ellow | |
| 287. |
The harmful poisonous substances produced by bacteria are called |
| A. | oxins |
| B. | ntitioxins |
| C. | ntibiotic |
| D. | flatoxins |
| Answer» B. ntitioxins | |
| 288. |
It is disease which used to exist in the past in most countries of old world. |
| A. | mall pox |
| B. | alaria |
| C. | easles |
| D. | holera |
| Answer» C. easles | |
| 289. |
Which of the following organisms fix nitrogen in aquatic ecosystems? |
| A. | ungi |
| B. | hemoautotrophs |
| C. | yanobacteria |
| D. | hytoplankton |
| Answer» D. hytoplankton | |
| 290. |
Dr. Birbal Sahni; a famous Indian botanist is concerned with ________ studies. |
| A. | lgal |
| B. | ossil |
| C. | ryophytic |
| D. | ungal |
| Answer» C. ryophytic | |
| 291. |
Distribution of plant on the various part of earth |
| A. | iogeography |
| B. | oogeography |
| C. | hytogeography |
| D. | eopraphy |
| Answer» D. eopraphy | |
| 292. |
Agro forestry is |
| A. | rowing tree for forest |
| B. | rowing tree after cutting crop |
| C. | rowing of tree with cultivation of crop in the same field |
| D. | one of these |
| Answer» D. one of these | |
| 293. |
Lichen is a composite combination of two organisms. |
| A. | ungi and Bryophyta |
| B. | ungi and Fern |
| C. | lgae and Bryophyta |
| D. | lgae and Fungi |
| Answer» E. | |
| 294. |
A species inhabiting different geographical areas is known as |
| A. | llopatric species |
| B. | ympatric species |
| C. | io species |
| D. | ibling species |
| Answer» B. ympatric species | |
| 295. |
Which of these plants grow in an environment that is neither very wet nor very dry? |
| A. | esophytes |
| B. | porophyte |
| C. | aprophytes |
| D. | racheophytes |
| Answer» B. porophyte | |
| 296. |
Some of the conifers in our northern areas include |
| A. | ines |
| B. | bies |
| C. | edrus |
| D. | ll of the above |
| Answer» E. | |
| 297. |
It is the branch of biology which deals with the study of relationship between organisms and their environment. |
| A. | cology |
| B. | axonomy |
| C. | volution |
| D. | enetics |
| Answer» B. axonomy | |
| 298. |
Consider the following statements1. Different plant species grow together2. Light cannot penetrate into the lower strata full of undergrowth Which of the following type of vegetation is characterized by the above? |
| A. | quatorial moist evergreen |
| B. | ropical deciduous |
| C. | editerranean |
| D. | arm temperate broad leaved deciduous |
| Answer» B. ropical deciduous | |
| 299. |
________ is the interaction in which one species benefits and the other is neither harmed nor benefited. |
| A. | redation |
| B. | ommensalism |
| C. | ompetition |
| D. | arasitism |
| Answer» C. ompetition | |
| 300. |
Study of typical behaviour of organisms in their natural habitat is called |
| A. | uthenics |
| B. | ugenics |
| C. | thology |
| D. | thnology |
| Answer» D. thnology | |