Biology MCQ: MCQ Test
50 questions · pick one option for each · submit when you finish to see your score and the correct answers.
Question 1 of 50
Which one of the following plants produces seed but not fruit ?
- AAlmond
- BCycus
- CGround nut
- DMustrad
Question 2 of 50
Who published the book 'Origin of species by natural selection in 1859' ?
- ALamarck
- BDarwin
- CWallace
- DOparin
Question 3 of 50
Which of the following is / are the possible commercial/ industrial applications of bacteria ? 1. Fermentation of sugars 2. Production of vaccines 3. Cleaning of oil spills Select the correct answer using the code given below :
- A1 only
- B1 and 3 only
- C1 and 3 only
- D1, 2 and 3
Question 4 of 50
Respiration is found in-
- AIn all living cell in light
- BAll living cell in dark
- CIn all living cell both in light and dark
- DOnly in non green cells both in light and dark
Question 5 of 50
Which one of the plastids is responsib for giving colors of fruit and flowers?
- AChloroplast
- BLeucoplast
- CProtoplast
- DChromoplast
Question 6 of 50
Which of the following harmone is called emergency harmone ?
- AInsulin
- BAdrenaline
- CEstrogen
- DOxytocin
Question 7 of 50
Which of the following is the middle layer in the root apical meristem that gives rise to cortex ?
- APeriblem
- BCalyptrogen
- CDermatogen
- DPlerome
Question 8 of 50
Souring of milk is due to -
- AProtozoa
- BBacteria
- CVirus
- DNematode
Question 9 of 50
Microbial Type Culture Collection Centre is situated at -
- AChandigarh
- BBangalore
- CHyderabad
- DNew Delhi
Question 10 of 50
Which one of the following statements about lymph is correct ?
- ALymph is formed due to leakage of blood through capillaries.
- BLymph contains blood cells such as RBC.
- CLymph is also circulated by the blood circulating heart.
- DLymph only transports hormones.
Question 11 of 50
Which of the following is monogamous ?
- AWolf
- BWalrus
- CSeal
- DDeer
Question 12 of 50
Which of the following is characteristics feature of mammal ?
- AMammary gland
- BSweat gland
- CFour chambred heart
- DAll of these
Question 13 of 50
Natural sources of air pollution are-
- AForest fires
- BVolcanic eruptions
- CDust storm
- DSmoke from burning dry leaves
Question 14 of 50
Which of the following microorganism cause diseases like polio and chicken pox ?
- ABacteria
- BProtozoa
- CAlgale
- DVirus
Question 15 of 50
Water exadation through hydathodes is-
- AGuttation
- BTranspiration
- CHydrolysis
- DExcretion
Question 16 of 50
RNA contains-
- AHexose
- BRibose
- CFructose
- DGlucose
Question 17 of 50
The process of taking in CO2 by plant and releasing O2 is component of-
- ATranspiration
- BRespiration
- CEndosmosis
- DPhotosynthesis
Question 18 of 50
Mendel's principles of inheritance are based on-
- AVegetative reproduction
- BAsexual reproduction
- CSexual reproduction
- DAll of the above
Question 19 of 50
Which Vitamin is obtained from Sun rays ?
- AVitamin A
- BVitamin
- CVitamin K
- DVitamin D
Question 20 of 50
Corals reefs are formed by phylum-
- AProtozoa
- BCoelenterata
- CArthropoda
- DPorifera
Question 21 of 50
Who discovered that malria isw caused by a particular type of mosquito ?
- ARonald Ross
- BHenri Becquerel
- CWilhelm Roentgen
- DLouis Pasteur
Question 22 of 50
Which one of the following plant plastids stores starch, oil and protein granules ?
- AChloroplast
- BLeucoplast
- CChromoplast
- DXanthoplast
Question 23 of 50
Ecosystem is-
- AAlways open
- BAlways closed
- CBoth open closed depending upon community
- DBolth open and closed depending upon biomass
Question 24 of 50
Study of inter-relationships between an entire community and its environment is-
- AAutecology
- BResource ecology
- CSpecies ecology
- DSynecology
Question 25 of 50
Which number of the following Genetically Modified vegetable is recently being made available in Indian market ?
- ACarrot
- BRadish
- CBrinjal
- DPotato
Question 26 of 50
Word gene was given by -
- AMorgan
- BMendal
- CJohansen
- DD Bridge
Question 27 of 50
Oath taken by medical graduates is given by-
- AAristotle
- BTheophrastus
- CHippocrates
- DDarwin
Question 28 of 50
PH of Human Blood :
- A7.1
- B8.2
- C7.4
- D7.7
Question 29 of 50
Mendel' s law were rediscovered by-
- ACorrens
- BTshermak
- CDeveries
- DAll of these
Question 30 of 50
Number of chamber found in the heart of whale-
- A2
- B3
- C4
- D1
Question 31 of 50
What is full form of BOD ?
- ABiological Oxygen Deficit
- BBiological Oxygen Difference
- CBiological Oxygen Demand
- DBiological Oxygen Distribution
Question 32 of 50
Which of the following is absent in bacteria ?
- ACell wall
- BPlasma membrane
- CMitochondria
- DRibosome
Question 33 of 50
Which of the following plant shows chloroplast dimorphism
- ARice
- BWheat
- CSugar beet
- DSugarcane
Question 34 of 50
If tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because-
- AThe soil of rain forest is deficient in nutrients
- BPropagules of the trees in a rain forest have poor viability
- CExotic species invade the fertile soil of rain forest
- DThe rain forest species are slow growing
Question 35 of 50
Branch of biology which deals with the study of identification , nomenculture and classification of organism is-
- AExobiology
- BEcology
- CTaxonomy
- DTaxicology
Question 36 of 50
Vitamin-A is mainly stored in-
- ALungs
- BKidney
- CBreast
- DLiver
Question 37 of 50
Which one among the following statements is not true for Mammals ?
- AThey possesshair on the body
- BSome of them lay eggs
- CTheir heart is three chambered
- DSome are aquatic
Question 38 of 50
The largest White Blood Corpuscle is :
- ALymphocyte
- BMonocyte
- CThrombocytes
- DErythrocyte
Question 39 of 50
Identify the organ which is located on both sides in the human body ?
- ASpleen
- BLiver
- CKidney
- DBladder
Question 40 of 50
Electron microscope is in invented by-
- AKnole & Ruska
- Bschleiden & Schwann
- CFleming & brown
- DWatson & Crick
Question 41 of 50
Basic unit of classification is -
- AGenus
- BFamily
- CSpecies
- DOrder
Question 42 of 50
In cacti photosynthesis is done by-
- ALeaf
- BStem
- CPetiole
- DNone of these
Question 43 of 50
Unit of heredity is -
- AGene
- BChromosomes
- CChromatin
- DNone of these
Question 44 of 50
Nitrogen fixing enzyme found in root nodules is-
- ANitrogen estrase
- BNitrogenase
- CNitrase
- DNitrosomans
Question 45 of 50
On industrial penicillin is obtain from -
- APenicillium notatum
- BPenicillium chrysogenum
- CPenicillium griseofulvum
- DPenicillium roqueforti
Question 46 of 50
Goob source of vitamin ' C' is -
- ALemon
- BOrange
- CAmla
- DChilli
Question 47 of 50
Who among the following popularized the use of embryological characters in taxonomy ?
- ACarl Linnaeus
- BPanchanan Maheshwari
- CBirbal Sahni
- DBentham and Hooker
Question 48 of 50
Allantois of Embryo helps in _
- ARespiration
- BProtection
- CDigestion
- DExcretion
Question 49 of 50
Lichens are constituted by-
- AFern and fungi
- BAlgae and Bryophyta
- CBacteria and Virus
- DFungi and Algae
Question 50 of 50
Deploid number of chromosome in man is-
- A23
- B24
- C46
- DIndefinite number