Biology Past Questions

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Past Questions

5,032 questions
Question 1 of 20 5,032 total questions
Question 2481
jamb 1979

Alkaline pyrogallol was used in an experiment. That experiment must have been connected with

AExcretion
BGermination
CTranspiration
DDigestion
EPhotosynthesis
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Question 2482
jamb 1979
A sugar solution was boiled with fehling’s solution A and B and the colour remained blue. The sugar tested was
AGlucose
BMaltose
CFructose
DSucrose
ELactose
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Question 2483
jamb 1979
Which of the following statements is not true of paramecium?
AIt is slipper-shaped
BThe anterior end is blunt
CThe gullet is lined with cilia
DIt has an anal pore
EIts vacuole is stationary
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Question 2484
jamb 1979

The part of the mammalian brain responsible for maintaining balance is

AMedulla oblongata
BCerebellum
COptic lobe
DCerebrum
EOlfactory lobe
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Question 2485
jamb 1979
In which of these association is much harm done to one of the partners?
ASymbiosis
BEpiphytism
CCommensalism
DParasitism
EMutualism
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Question 2486
jamb 1979

Which of these diseases cannot be controlled by killing the vector?

ARiver blindness
BMalaria
CPolio
DCholera
EBilharzia (shistosoma)
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Question 2487
jamb 1979

When the ciliary muscles of the eye contract, the eye lens

ABulge
BContracts
CRotates
DFlattens
EIs rounded
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Question 2488
jamb 1979

Which of the following is not an excretory organ in animals?

ALungs
BKidney
CLeaf
DLarge intestine
ESkin
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Question 2489
jamb 1979

Which of these statement below is not a characteristic of wind pollinated flower?

AStigmas are usually large and feathery
BNectar is usually absent
CThe pollen grains have rough spiny surfaces
DThe flowers are not scented
EThe pollen is light and smooth
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Question 2490
jamb 1979
The region of cell division in a root is
ARoot cap
BEndodermis
CXylem
DPiliferous layer
EMeristem
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Question 2491
jamb 1979

Which of these is not an enzyme?

APepsin
BGastrin
CAmylase
DChymotrypsin
ETrypsin
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Question 2492
jamb 1979

Which one of the following option is not true for mucor of Rhizophus? it

AGrows on moist dead organic matter
BIs a plant
CHas cellulose cell-wall
DReproduce asexually by producing a spore
EHas no chlorophyll
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Question 2493
jamb 1979

The carrier of the hereditary character in plants and animal is the

ACell
BNucleus
CChromosome
DChloroplast
EGene
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Question 2494
jamb 1979
A secchi disc is used in the determination of
ARainfall
BTides
CWaves
DTurbidity
ECurrent velocity
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Question 2495
jamb 1979
The complex relationship between the members of a community and between the community as a whole and its physical environment is
AEcosystem
BHabitat
CEnvironment
DNiche
EMicro habitat
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Question 2496
jamb 1979
Which of the structure listed below is peculiar to the axis vertebra?
AOdontoid process
BAnterior zygapophysis
CPosterior zygapophysis
DLateral spine
ECentrum
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Question 2497
jamb 1979

The movement of molecules from a region of higher concentration to one of lower concentration is

ADiffusion
BTranspiration
COsmosis
DTranslocation
EPlasmolysis
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Question 2498
jamb 1979

Which of the substance listed below is a trace element of plants?

APotassium
BSodium
CCopper
DPhosphate
ENitrate
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Question 2499
jamb 1979
An organism which lives on the remain of dead plant is
AAn endoparasite
BSaprophyte
CCommensal
DSymbiont
Eectoparasite
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Question 2500
jamb 1979
Which of these is the terminal portion of the alimentary canal of a mammal?
AOesophagus
BStomach
CRectum
DColon
EAppendix
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