OOU Post UTME/DE Past Questions and Answers for All Courses (Sciences, Medical Sciences, Engineering, Pharmacy, Nursing & More)

Are you preparing for the Olabisi Onabanjo University (OOU) Post UTME or Direct Entry (DE) screening? If yes, getting the latest OOU Post UTME past questions and answers PDF is one of the smartest ways to prepare and improve your chances of admission.

Whether you applied for Biochemistry, Microbiology, Botany, Zoology, Physics, Chemistry, Engineering courses, Pharmacology, Anatomy, Physiology, Medicine & Surgery, Pharmacy, Nursing, Medical Laboratory Science, or any other course at Olabisi Onabanjo University (OOU), this comprehensive OOU Post UTME/DE past questions and answers package will help you study effectively.

Why You Need OOU Post UTME Past Questions and Answers

Thousands of candidates apply to Olabisi Onabanjo University (OOU) every year, making admission highly competitive. One proven strategy for passing the screening exercise is practicing with authentic OOU Post UTME past questions and answers.

Our updated compilation contains real past questions with verified answers, helping you understand:

• The pattern of OOU Post UTME examinations

• Frequently repeated questions

• Likely areas of concentration

• The difficulty level of the screening test

• How to manage time effectively during exams

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OOU Post UTME/DE Past Questions Available for All Courses

This material covers candidates applying for various faculties and departments including:

Science Courses

Students applying for science-related programs can benefit greatly from this material, including:

• Biochemistry

• Microbiology

• Botany

• Zoology

• Industrial Chemistry

• Pure and Applied Chemistry

• Physics

• Computer Science

• Mathematics

• Environmental Sciences

• Geology

Basic Medical Sciences

The package is highly useful for candidates applying for:

• Pharmacology

• Anatomy

• Physiology

• Biochemistry (Medical Sciences)

• Medical Microbiology

Medical and Health-Related Courses

Students seeking admission into highly competitive health programs can prepare with confidence:

• Medicine & Surgery (MBBS)

• Pharmacy

• Nursing Science

• Medical Laboratory Science (MLS)

• Public Health

• Physiotherapy

• Dentistry (where applicable)

Engineering Courses

Candidates applying for engineering programs can also benefit, including:

• Electrical/Electronic Engineering

• Mechanical Engineering

• Civil Engineering

• Computer Engineering

• Chemical Engineering

• Agricultural Engineering

Other OOU Courses

• Education

• Agriculture

• Environmental Studies

Subjects Included in the OOU Post UTME Past Questions

The OOU Post UTME/DE past questions and answers PDF includes major science-related screening subjects such as:

✅ Use of English
✅ Mathematics
✅ Physics
✅ Chemistry
✅ Biology

These subjects are particularly important for students applying for science, engineering, pharmacy, nursing, medicine, medical laboratory science, anatomy, physiology, pharmacology, microbiology, zoology, botany, chemistry, and related courses.

Does the OOU Past Questions Come With Answers?

Yes!

The material comes with well-compiled answers, helping candidates practice effectively and assess their performance before the actual screening exam.

Instead of reading blindly, you can:

• Practice exam-style questions

• Check correct answers instantly

• Learn repeated question patterns

• Improve speed and accuracy

Is OOU Post UTME Past Questions Worth It?

Absolutely.

Many successful candidates who gained admission into OOU prepared with past questions because they provide insight into how the university sets screening questions.

Using past questions increases your chances of:

• Scoring higher in the screening exam

• Understanding question patterns

• Reducing exam anxiety

• Improving preparation strategy

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Final Thoughts

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DETERMINATION OF DISSOLVED OXYGEN IN WATER (WINKLER METHOD)

AIM:
To determine the dissolved oxygen (DO) content in water.

APPARATUS:
BOD bottles, burette, pipette.

REAGENT:
Manganese sulfate, alkaline iodide, starch, sodium thiosulphate.

PRINCIPLE:
DO oxidizes Mn²⁺ to Mn⁴⁺, which liberates iodine that is titrated.

PROCEDURE:

• Add MnSO₄ and alkaline iodide to water sample.

• Allow precipitate to form and settle.

• Add H₂SO₄ to dissolve.

• Titrate liberated iodine with sodium thiosulphate using starch as indicator.

CALCULATION:
DO (mg/L) = Volume of thiosulfate used × Normality × 8

DETERMINATION OF CITRIC ACID IN FRUIT JUICE

AIM:
To estimate citric acid content in fruit juice.

APPARATUS:
Burette, conical flask, pipette.

REAGENT:
0.1M NaOH, phenolphthalein.

PRINCIPLE:
Citric acid neutralized by NaOH; endpoint indicated by pink color.

PROCEDURE:

• Pipette 10ml of juice into a flask.

• Add 2–3 drops phenolphthalein.

• Titrate with NaOH to pink endpoint.

CALCULATION:
% Citric Acid = Titre × 0.064 × 100 / Volume of sample

DETERMINATION OF CHLOROPHYLL IN LEAF EXTRACT

AIM:
To estimate chlorophyll content in a leaf sample.

APPARATUS:
Spectrophotometer, centrifuge, test tubes.

REAGENT:
80% acetone.

PRINCIPLE:
Chlorophyll is extracted and measured at specific absorbance values.

PROCEDURE:

• Grind 1g of leaf in 10ml acetone.

• Centrifuge and collect supernatant.

• Measure absorbance at 645 nm and 663 nm.

CALCULATION:
Use Arnon's formula:
Chlorophyll a = 12.7(A663) – 2.69(A645)
Chlorophyll b = 22.9(A645) – 4.68(A663)

DETECTION OF BORIC ACID IN FOOD

AIM:
To detect boric acid in food samples (e.g., milk, jaggery).

APPARATUS:
Test tubes, turmeric paper.

REAGENT:
None (turmeric paper acts as indicator).

PRINCIPLE:
Boric acid turns turmeric paper red, which turns green on ammonia exposure.

PROCEDURE:

• Dip turmeric paper in food extract.

• Dry and observe color.

• Expose to ammonia vapor for confirmation.

RESULT:
Red to green color change confirms boric acid.

TEST FOR SULPHUR DIOXIDE IN DRIED FRUITS

AIM:
To detect presence of SO₂ preservative in food.

APPARATUS:
Test tubes, beaker.

REAGENT:
Pararosaniline hydrochloride, formaldehyde.

PRINCIPLE:
SO₂ reacts with dye and formaldehyde to form pink/magenta color.

PROCEDURE:

• Boil fruit sample in water, cool extract.

• Add 2ml dye reagent + formaldehyde.

• Observe color change.

RESULT:
Pink color indicates presence of sulphur dioxide.