Biology Past Questions

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2,099 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10
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Past Questions

2,099 questions
Question 1 of 20 2,099 total questions
Question 111
waec 2021

The process that takes place at the light stage of photosynthesis is?

Asplitting of water molecules to form hydrogen ions
Breduction of carbon (IV) oxide to form carbohydrate
Cformation of two molecules of phosphoglyceric acid
Dbreaking down of ATP molecules to produce energy
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Question 112
waec 2021

Autotrophic nutrition is a process whereby an organism obtains food 

Aby utilizing its store energy
Bby synthesizing simple substances using energy
Cfrom other organisms in exchange for some products
Din a synthesized form, from other living organisms
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Question 113
waec 2021

Which of the following factors is not necessary for photosynthesis?

Awater
Bcarbon (IV) oxide
Cwind
Dsunlight
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Question 114
waec 2021

The diagram above is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died. Use this to answer this question.

The death of the plant was likely caused by?

Aexcess supply of nutrients to the plant
Binadequate supply of water to the plant
Calgal growth in the solution that used up the nutrients
Dinability of the plant to make food due to lack of sunlight
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Question 115
waec 2021

The diagram above is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died. Use this to answer this question.

What precaution should have been taken to prevent the solution from turning green?

Ause a non-green plant for the experiment
Baerate the solution daily
Ccover the culture vessel with opaque paper
Dkeep cotton wool around the seedling to make it dry
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Question 116
waec 2021

An enzyme reaction may begin to decline when?

Athe optimum temperature is attained
Bthe ph of the medium is altered
Cthere is an increase in substrate concentration
Dthe atmospheric pressure is altered
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Question 117
waec 2021

Which of the following organisms does not undergo incomplete metamorphosis?

Alocust
Bgrasshopper
Cbutterfly
Dcockroach
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Question 118
waec 2021

How many gametes are produced in the pollen grain of a flowering plant before fertilization?

Aone
Btwo
Cthree
Dfour
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Question 119
waec 2021

The diagram above is an illustration of a type of eye defect in humans. Study it and answer this question.

The eye defect can be corrected by the use of?

Aconvex lens
Bconcave lens
Cbifocal lens
Dcylindrical lens
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Question 120
waec 2021

The diagram above is an illustration of a type of eye defect in humans. Study it and answer this question.

The eye defect illustrated in the diagram is?

Ahypermetropia
Bastigmatism
Cpresbyopia
Dmyopia
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Question 121
waec 2021

The temperature control centre in mammals is located in the?

Askin
Bhypothalamus
Cpituitary gland
Dadrenal gland
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Question 122
waec 2021

Which of the following hormones is suddenly secreted into the bloodstream of a frightened person?

Ainsulin
Badrenaline
Cthyroxine
Dparathormore
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Question 123
waec 2021

Detoxification of urea takes place in the?

Apancreas
Bheart
Cliver
Dtestes
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Question 124
waec 2021

The diagram above is an illustration of the longitudinal section of a mammalian organ. Study it and answer this question.

What is the main function of the organ?

AExcretion
BRespiration
CReproduction
DLocomotion
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Question 125
waec 2021

The diagram above is an illustration of the longitudinal section of a mammalian organ. Study it and answer this question.

Which of the labeled parts is the cortex?

AI
BII
CIII
DIV
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Question 126
waec 2021

The blood vessel which carries blood from the alimentary canal to the liver is the?

Ahepatic artery
Bhepatic vein
Chepatic portal vein
Dmesenteric artery
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Question 127
waec 2021

Radius and ulna are bones of the?

Apectoral girdle
Bupper arm
Cpelvic girdle
Dlower arm
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Question 128
waec 2021

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because 

Agreater amount of DNA is involved in sexual reproduction
Bgametes of parents have different genetic composition
Cgenetic materials come from parents of two different species
Dsexual reproduction is a lengthy process
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Question 129
waec 2021

A plant cell placed in a solution with a higher water potential will

Aexpand and then shrink
Benlarge and become turgid.
Cexpand and then burst
Ddecrease in size and become flaccid
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Question 130
waec 2021

The organism belongs to the Phylum

ARhizopoda
BCiliophora
CEuglenophyta
DRhodophyta
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