All 40 questions from the Post-UTME Screening (Post-UTME) Biology 2006 Objective paper, with the correct answer and a full explanation for each. Free, no signup needed.
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Which of the following is the largest single cell in the body?
The human ovum (egg cell) is famously the largest single cell in the human body.
Blue-green algae belong to the phylum
Blue-green algae (cyanobacteria) are classified under the phylum Cyanophyta.
The concept of antibiotics started with the work of
Alexander Fleming's discovery of penicillin is credited with founding the field of antibiotics.
The botanical name for yellow yam is
Yellow yam is botanically known as Dioscorea cayenensis.
Which of the following tissues are made of dead cells?
Xylem vessels, which transport water, are composed of dead, hollow, lignified cells.
Which of the following is not a function of the liver?
Excretion of urine is a function of the kidneys, not the liver; the liver does store iron, form bile, and break down excess amino acids (deamination).
Alkaline pyrogallol was used in an experiment. That experiment must have been connected with
Alkaline pyrogallol absorbs oxygen and is commonly used in experiments measuring oxygen consumption, such as those studying respiration.
The enzyme that breaks down cane sugar is
Invertase (sucrase) is the enzyme that hydrolyses sucrose (cane sugar) into glucose and fructose.
The large single bone in the body is the
The femur (thigh bone) is the largest single bone in the human body.
Auxins are produced in the
Auxins are primarily synthesized in growing regions such as the apical meristems (root and stem apices).
The hormone which tones up the muscles of a person in time of danger is from the
Adrenaline (epinephrine), released by the adrenal gland, prepares the body for 'fight or flight' by toning up the muscles in response to danger.
A diet with a high concentration of iodine will probably be needed by a patient suffering from a malfunction of the
Iodine is essential for the synthesis of thyroid hormones, so a thyroid malfunction (e.g. goitre from iodine deficiency) would require an iodine-rich diet.
[Identify the option with a STRESS PATTERN different from the rest] Unless, Enact, Useless, Combine
Unless, Enact and Combine (as a verb) are stressed on the second syllable; Useless is stressed on the first syllable (USE-less), making it the odd one out.
The singer's popularity is beginning to decline. (nearest in meaning to 'decline')
'Decline' means to gradually lessen/fade, i.e. wane.
Ade is at the verge of nervous breakdown, so he must be very careful. (nearest in meaning to 'verge')
'Verge' means the point/edge just before something happens, i.e. the brink.
An open car gives no protection against the elements. (nearest in meaning to 'the elements')
'The elements' is an idiom referring to weather conditions (wind, rain, sun, etc.).
He has never been a good mediator even in minor family disputes because, in most cases, his views are jaundiced. (nearest in meaning to 'jaundiced')
'Jaundiced' (figuratively) means biased/prejudiced.
In some parts of our society, people are ostracized purely on the basis of their parentage. (nearest in meaning to 'ostracized')
'Ostracized' means excluded/shunned from a group, i.e. shut off from others.
My friend will hate his uncle forever because he left him in the lurch at his hour of need. (nearest in meaning to 'left him in the lurch')
'To leave someone in the lurch' means to abandon them in a difficult situation.
All the efforts made to settle the quarrel were futile. (nearest in meaning to 'futile')
'Futile' means having no useful result, i.e. fruitless.
Kelechi hardly ever falls sick. (nearest in meaning to 'hardly ever')
'Hardly ever' means very rarely/seldom.
It is sheer fantasy to believe that there could never be a miscalculation by any nation that has atomic weapons. (nearest in meaning to 'fantasy')
'Sheer fantasy' here means an unrealistic/nonsensical belief.
The ingenious scheme of the robber broke down because of the efficiency of the police officer. (nearest in meaning to 'ingenious')
'Ingenious' means cleverly inventive.
Our town is so small that we are always meeting our school master accidentally. (nearest in meaning to 'meeting ... accidentally')
'To run into someone' means to meet them unexpectedly/by chance.
One has to score not less than 200 marks in the UME together with meeting other conditions to be qualified to write the Uniben post UME screening test. (nearest in meaning to 'to be qualified to write')
Being 'qualified to write' the test means becoming eligible to sit for it as a candidate.
He went through fire before he qualified as a doctor. (nearest in meaning to the idiom 'went through fire')
'To go through fire' is an idiom meaning to endure a difficult/challenging ordeal.
The chairman's verdict redressed the injustice meted out by the secretary. (opposite in meaning to 'redressed')
'Redressed' means corrected/put right; the opposite is 'aggravated' (made worse).
Uche could not travel last December because of the severity of the harmattan. (opposite in meaning to 'severity')
'Severity' means harshness/intensity; the opposite is 'mildness'.
Travelling in the night can be an ordeal. (opposite in meaning to 'ordeal')
An 'ordeal' is a difficult, painful experience; its opposite is 'a great pleasure'.
Bola is very provocative in her style of dressing. (opposite in meaning to 'provocative')
'Provocative' (in dress) means deliberately attention-seeking/suggestive; the opposite is 'modest'.
Joke thought that her father was very callous. (opposite in meaning to 'callous')
'Callous' means unfeeling/uncaring; the opposite is 'compassionate'.
'The Lions' of Cameroun is really an indomitable team. (opposite in meaning to 'indomitable')
'Indomitable' means unable to be defeated/subdued; the opposite is 'a weak team'.
To almost everyone in the little village, Ada's behaviour was almost odious. (opposite in meaning to 'odious')
'Odious' means extremely unpleasant/hateful; the opposite is 'charming'.
Aduma was vociferous during the meeting of the congregation, that he succeeded in incurring the wrath of the chairman. (opposite in meaning to 'wrath')
'Wrath' means intense anger; the closest opposite among the options is 'admiration'.
It was an inopportune time for you to make that suggestion. (opposite in meaning to 'inopportune')
'Inopportune' means badly timed/inconvenient; the opposite is 'ideal' (well-timed).
He deviated too much to the peripheral aspects. (opposite in meaning to 'peripheral')
'Peripheral' means marginal/secondary; the opposite is 'main' (central/primary).
The climate of Nigeria is an enervating one. (opposite in meaning to 'enervating')
'Enervating' means draining of energy; the opposite is 'invigorating' (energizing).
The girl's idiosyncrasy was a passion for bread and butter. (opposite in meaning to 'idiosyncrasy')
'Idiosyncrasy' means a unique/individual trait; the opposite is a 'general tendency' (shared by many, not unique).
Once he has decided that something needs doing, my brother is very unswerving of purpose. (opposite in meaning to 'unswerving')
'Unswerving' means steadfast/unwavering; the opposite is 'erratic' (inconsistent).
Those were the days of the fallacy that some languages are primitive while others are not. (opposite in meaning to 'fallacy')
A 'fallacy' is a false/mistaken belief; the opposite is 'truth'.
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