HST - Biology Mock Test

SIBA Testing Services (STS) / Sukkur IBA University

Official syllabus, paper pattern and past papers for the Sukkur IBA Community Colleges & Schools (SIBA Testing Services (STS) / Sukkur IBA University) test.

Practice for the HST - Biology mock test based on the exam conducted by SIBA Testing Services (STS) / Sukkur IBA University. This free mock test follows the official syllabus and prepares you with realistic, exam-style multiple-choice questions written in simple Pakistani exam English. Use it to build speed, check your weak areas, and improve your score before the real test.

More STS tests by department: STS Test Preparation Hub.

Test Pattern

  • Duration: 90 minutes
  • Questions: 100
  • Subjects: 4

Official Syllabus & Weightage

The HST - Biology test by SIBA Testing Services (STS) / Sukkur IBA University covers English, Reasoning / Aptitude, Computer / MS Office, Subject-Based (Biology).

SubjectWeightageApprox. Questions
English20%20
Reasoning / Aptitude10%10
Computer / MS Office10%10
Subject-Based (Biology)60%60

HST - Biology Past Papers Pattern

Past papers of the HST - Biology test follow the official syllabus above. The practice questions on this page are built subject-by-subject on that same pattern, so the balance of English, computer, mathematics, general knowledge and reasoning items matches what candidates report seeing in previous papers.

  • English — about 20 of 100 questions (20%)
  • Reasoning / Aptitude — about 10 of 100 questions (10%)
  • Computer / MS Office — about 10 of 100 questions (10%)
  • Subject-Based (Biology) — about 60 of 100 questions (60%)

Questions Preview

Real, exam-style multiple-choice questions already prepared for this mock test. Correct answers and detailed explanations are unlocked inside the test.

Q1. Which type of RNA carries the genetic code from DNA to the ribosome for protein synthesis?

  1. A. mRNA
  2. B. tRNA
  3. C. rRNA
  4. D. DNA

Subject: Subject-Based (Biology)

Q2. The observable characteristics of an organism, resulting from its genotype and environment, are called its:

  1. A. Genotype
  2. B. Phenotype
  3. C. Allele
  4. D. Locus

Subject: Subject-Based (Biology)

Q3. Which function key is used in MS Excel to toggle between relative and absolute cell references?

  1. A. F2
  2. B. F4
  3. C. F7
  4. D. F11

Subject: Computer / MS Office

Q4. Complete the sentence with the correct tense: 'By the time he arrived, the meeting _________.'

  1. A. had already started
  2. B. has already started
  3. C. will already start
  4. D. is already starting

Subject: English

Q5. Which human organ is primarily responsible for filtering waste products from the blood?

  1. A. Kidneys
  2. B. Lungs
  3. C. Liver
  4. D. Pancreas

Subject: Subject-Based (Biology)

Q6. A relationship where one organism benefits and the other is harmed, such as ticks on livestock, is known as?

  1. A. Symbiotic relationship
  2. B. Commensalism
  3. C. Mutualism
  4. D. Parasitism

Subject: Subject-Based (Biology)

Q7. Which process converts atmospheric nitrogen gas (N₂) into ammonia (NH₃) by bacteria, making it available to plants?

  1. A. Decomposition
  2. B. Nitrification
  3. C. Denitrification
  4. D. Nitrogen fixation

Subject: Subject-Based (Biology)

Q8. Which of the following sentences contains a dangling modifier?

  1. A. Having finished the assignment, the student submitted it to the instructor.
  2. B. After completing the experiment, the results were analyzed by the research team.
  3. C. To achieve success, one must work hard and remain focused.
  4. D. Walking through the bazaar, I found many unique local handicrafts.

Subject: English

Q9. Which cell organelle is responsible for generating most of the ATP in eukaryotic cells?

  1. A. Mitochondria
  2. B. Ribosome
  3. C. Nucleus
  4. D. Endoplasmic Reticulum

Subject: Subject-Based (Biology)

Q10. Select the synonym for 'Eradicate':

  1. A. Preserve
  2. B. Eliminate
  3. C. Enhance
  4. D. Cultivate

Subject: English

Q11. Which organelle is responsible for cellular respiration and ATP production?

  1. A. Mitochondria
  2. B. Ribosome
  3. C. Nucleus
  4. D. Golgi apparatus

Subject: Subject-Based (Biology)

Q12. In MS Excel, the address of the currently active cell is displayed in which component?

  1. A. Formula Bar
  2. B. Name Box
  3. C. Status Bar
  4. D. Title Bar

Subject: Computer / MS Office

Q13. Which cell organelle is primarily responsible for ATP production through cellular respiration?

  1. A. Mitochondria
  2. B. Ribosome
  3. C. Nucleus
  4. D. Endoplasmic Reticulum

Subject: Subject-Based (Biology)

Q14. Which part of the human respiratory system is also known as the windpipe?

  1. A. Trachea
  2. B. Esophagus
  3. C. Pharynx
  4. D. Larynx

Subject: Subject-Based (Biology)

Q15. Which cell organelle is responsible for cellular respiration and ATP production in eukaryotes?

  1. A. Mitochondria
  2. B. Ribosomes
  3. C. Nucleus
  4. D. Endoplasmic Reticulum

Subject: Subject-Based (Biology)

Start the HST - Biology mock test

Frequently Asked Questions

What subjects are included in the HST - Biology test?

The official syllabus for the HST - Biology test by SIBA Testing Services (STS) / Sukkur IBA University covers: English, Reasoning / Aptitude, Computer / MS Office, Subject-Based (Biology).

How long is the HST - Biology mock test?

This mock test is set to 90 minutes with 100 multiple-choice questions, matching the official pattern.

Is the HST - Biology mock test free?

Yes. You can practice the HST - Biology mock test for free on MCQsAI. Questions are generated in simple Pakistani exam English from the official syllabus.

Can I customise the syllabus for the HST - Biology test?

Yes. You can adjust subject weightage or disable subjects. Sign in to save your custom syllabus; otherwise the official syllabus is used.