100+ Free STPM Biology 964 Practice Questions

Prepare for the Sijil Tinggi Persekolahan Malaysia (STPM) — Biology / Biologi (964) exam with instant access — no signup required.

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Key Facts: STPM Biology 964 Exam

STPM Biology (964) is Form Six biology assessed over three semester written papers (26.67% each) plus coursework or written practical (20%), under MPM's refined syllabus from Semester 1 STPM 2026, graded A–F with C (2.00) a principal pass. Private candidates pay RM120 + RM90/subject; government-school candidates are fee-exempt.

Sample STPM Biology 964 Practice Questions

Try these sample questions to test your STPM Biology 964 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which property of water is MOST important in buffering temperature changes in cells and aquatic habitats?

A.High specific heat capacity

B.Low latent heat of vaporisation

C.Non-polar molecular structure

D.Inability to form hydrogen bonds

Explanation: Water's high specific heat capacity means a large energy input is needed to raise its temperature, so it resists rapid temperature swings that would disrupt enzyme-catalysed metabolism.

2In condensation polymerisation of amino acids to form a polypeptide, which molecule is released when a peptide bond forms?

A.Carbon dioxide

B.Water

C.Ammonia

D.Oxygen

Explanation: Peptide-bond formation is a condensation reaction: the carboxyl group of one amino acid and the amino group of another join, releasing one H2O molecule per bond.

3Which carbohydrate is a branched polymer of α-glucose used for energy storage in animal liver and muscle?

A.Cellulose

B.Amylose

C.Glycogen

D.Chitin

Explanation: Glycogen is a highly branched α-glucose polymer stored in animal liver and muscle for rapid mobilisation of glucose.

4Which statement about saturated fatty acids is CORRECT?

A.They always contain at least two cis double bonds

B.They cannot pack closely and are always liquid at room temperature

C.They are the monomers used to build cellulose

D.They contain no carbon–carbon double bonds in the hydrocarbon chain

Explanation: Saturated fatty acids have only single C–C bonds in the hydrocarbon chain, allowing closer packing and higher melting points than unsaturated fats with C=C bonds.

5Which level of protein structure is defined by the sequence of amino acids linked by peptide bonds?

A.Secondary structure

B.Primary structure

C.Tertiary structure

D.Quaternary structure

Explanation: Primary structure is the linear amino-acid sequence held by peptide bonds. Higher levels describe folding and subunit assembly.

6In DNA, which base-pairing rule is CORRECT?

A.Adenine pairs with cytosine via three hydrogen bonds

B.Guanine pairs with thymine via two hydrogen bonds

C.Adenine pairs with thymine via two hydrogen bonds

D.Uracil pairs with adenine in DNA

Explanation: In DNA, A pairs with T (two H-bonds) and G pairs with C (three H-bonds). Uracil replaces thymine in RNA, not DNA.

7Which organelle is the site of the Krebs (citric acid) cycle in eukaryotic cells?

A.Cytosol

B.Thylakoid lumen

C.Rough endoplasmic reticulum lumen

D.Mitochondrial matrix

Explanation: After pyruvate enters mitochondria, the Krebs cycle enzymes operate in the mitochondrial matrix; the electron transport chain is on the inner membrane.

8Which feature distinguishes typical prokaryotic cells from eukaryotic cells regarding genetic material packaging?

A.Prokaryotes lack a membrane-bound nucleus (DNA in a nucleoid)

B.Prokaryotes always have mitochondria

C.Prokaryotes have 80S ribosomes only

D.Prokaryotes never have a plasma membrane

Explanation: Prokaryotes lack a nuclear envelope; their DNA lies in a nucleoid. They do have ribosomes and a plasma membrane, but not mitochondria.

9Facilitated diffusion of glucose into a cell via a carrier protein is BEST described as:

A.Active transport against a gradient that always requires ATP hydrolysis at the carrier

B.Passive transport down a concentration gradient that requires a membrane protein but not ATP

C.Bulk transport by endocytosis of glucose vesicles

D.Simple diffusion of glucose through the phospholipid bilayer without proteins

Explanation: Facilitated diffusion uses channels or carriers to move solutes down their electrochemical/concentration gradient without direct ATP use at that step.

10The sodium–potassium pump (Na+/K+ ATPase) is an example of:

A.Facilitated diffusion of Na+ and K+ down their gradients

B.Osmosis of water through aquaporins

C.Primary active transport that pumps Na+ out and K+ in using ATP

D.Simple diffusion of ions through the bilayer

Explanation: The Na+/K+ pump hydrolyses ATP to move 3 Na+ out and 2 K+ in against their gradients — classic primary active transport maintaining resting potential.

About the STPM Biology 964 Exam

Biology (subject code 964) is a pure-science subject of the STPM, Malaysia's pre-university (Form Six) examination administered by Majlis Peperiksaan Malaysia. Under the sukatan pelajaran yang dimurnikan applying from Semester 1 STPM 2026, content is organised as Semester 1 Molecules of Life and Metabolism (biological molecules, cells, membranes, enzymes, respiration and photosynthesis), Semester 2 Physiology (gas exchange, transport, control, reproduction, homeostasis, immunity and infectious disease), and Semester 3 Biodiversity, Ecology and Genetics (Malaysian biodiversity and conservation, ecology, selection/speciation, inheritance, gene technology and biotechnology). Candidates sit three centrally assessed written papers (964/1–964/3), each 60 marks and 26.67% over 1.5 hours, combining 20 MCQs with structured and essay questions, plus either school-based practical coursework (964/4, 20%) or a written practical alternative (964/5, 20%). Results use the STPM A-to-F grade point scale, with grade C and above a principal pass. This free practice bank is an English-language MCQ study adaptation; it does not simulate structured/essay papers or certify practical laboratory competence.

Assessment

Under the sukatan dimurnikan (from Semester 1 STPM 2026): 964/1 Molecules of Life and Metabolism, 964/2 Physiology, 964/3 Biodiversity, Ecology and Genetics — each 60 marks (26.67%), 1.5 hours, centrally assessed, with Section A 20 MCQs (20 marks), Section B 2 structured questions (14 marks) and Section C 2 essay questions (26 marks). Plus either 964/4 Biology Practical Coursework (15 experiments across three semesters, scaled to 20%) OR 964/5 Written Practical Test (3 structured questions, 45 marks / 20%, 1.5 hours in Semester 3). Candidate types 1 and 7 take Paper 4; types 3 and 8 and out-of-package Biology take Paper 5; type 2 may choose 4 or 5 subject to MPM approval.

Time Limit

964/1, 964/2, 964/3 and 964/5: 1 hour 30 minutes each; 964/4 coursework continuous across Semesters 1–3.

Passing Score

Graded A (4.00) to F (0.00); grade C (2.00) and above is a principal pass (lulus penuh), C-minus to D is a partial pass, and F is a fail.

Exam Fee

Private/individual private candidates: basic fee RM120.00 + RM90.00 per subject (MPM Peraturan dan Skema / FAQ). Government and government-aided school candidates (types 1, 7, 8) are fee-exempt. Written-paper retake: RM50.00 per paper. (Majlis Peperiksaan Malaysia (Malaysian Examinations Council), under the Ministry of Education, Malaysia)

STPM Biology 964 Exam Content Outline

14%

Molecules of Life and Cell Biology (Semester 1)

Biological molecules, cell ultrastructure and membrane transport.

13%

Enzymes and Metabolism (Semester 1)

Enzyme action, cellular respiration and photosynthesis.

12%

Physiology — Gas Exchange and Transport (Semester 2)

Respiratory gas exchange and transport systems in animals and plants.

12%

Physiology — Control, Homeostasis and Reproduction (Semester 2)

Nervous/hormonal control, homeostasis, reproduction and growth.

Immunity and Infectious Disease (Semester 2)

Immune responses and selected infectious diseases.

12%

Biodiversity and Taxonomy (Semester 3)

Classification, Malaysian biodiversity levels, threats and conservation.

10%

Ecology (Semester 3)

Ecological organisation, populations, communities, energy and nutrient cycles.

12%

Genetics, Selection and Biotechnology (Semester 3)

Inheritance, molecular genetics, selection/speciation and gene technology.

Assessment Format and Practical Skills Knowledge

964 paper structure, coursework vs written practical rules, and MCQ-testable practical concepts — not hands-on certification.

How to Pass the STPM Biology 964 Exam

What You Need to Know

Passing score: Graded A (4.00) to F (0.00); grade C (2.00) and above is a principal pass (lulus penuh), C-minus to D is a partial pass, and F is a fail.
Assessment: Under the sukatan dimurnikan (from Semester 1 STPM 2026): 964/1 Molecules of Life and Metabolism, 964/2 Physiology, 964/3 Biodiversity, Ecology and Genetics — each 60 marks (26.67%), 1.5 hours, centrally assessed, with Section A 20 MCQs (20 marks), Section B 2 structured questions (14 marks) and Section C 2 essay questions (26 marks). Plus either 964/4 Biology Practical Coursework (15 experiments across three semesters, scaled to 20%) OR 964/5 Written Practical Test (3 structured questions, 45 marks / 20%, 1.5 hours in Semester 3). Candidate types 1 and 7 take Paper 4; types 3 and 8 and out-of-package Biology take Paper 5; type 2 may choose 4 or 5 subject to MPM approval.
Time limit: 964/1, 964/2, 964/3 and 964/5: 1 hour 30 minutes each; 964/4 coursework continuous across Semesters 1–3.
Exam fee: Private/individual private candidates: basic fee RM120.00 + RM90.00 per subject (MPM Peraturan dan Skema / FAQ). Government and government-aided school candidates (types 1, 7, 8) are fee-exempt. Written-paper retake: RM50.00 per paper.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

STPM Biology 964 Study Tips from Top Performers

1Build Sem 1 from first principles: draw water's polarity, condensation/hydrolysis of polymers, and labelled organelle functions before tackling respiration and photosynthesis pathways.

2For metabolism, know locations (cytosol vs mitochondrial matrix vs cristae; thylakoid vs stroma) and net products of glycolysis, Krebs cycle and the light reactions — examiners test compartmentalisation as often as equations.

3Practise oxygen-dissociation curve shifts (Bohr effect, foetal Hb, myoglobin) with labelled axes; many Sem 2 marks come from interpreting graphs rather than recalling definitions.

4Link plant transport to water potential and stomatal physiology; be able to explain cohesion–tension and mass-flow translocation in one clear chain of cause and effect.

5For Sem 3 Malaysia topics, learn the three levels of biodiversity with local examples, and be ready to discuss habitat loss (including oil-palm conversion) alongside conservation responses (protected areas, sustainable practices).

6Drill Mendelian ratios, sex linkage and Hardy–Weinberg assumptions with one worked numerical example each; then add molecular steps of replication, transcription and translation.

7Know the 964 paper map: 20 MCQs + structured + essays each semester, plus coursework or written practical at 20% — MCQs alone cannot replace Paper 4 laboratory skills or Paper 5 experiment-based written practical.

Frequently Asked Questions

What is STPM Biology (subject code 964)?

Biology (964) is the STPM Form Six biology subject administered by Majlis Peperiksaan Malaysia. Under the refined (dimurnikan) syllabus from Semester 1 STPM 2026 it covers Molecules of Life and Metabolism (Sem 1), Physiology (Sem 2) and Biodiversity, Ecology and Genetics (Sem 3), with written papers plus coursework or a written practical.

How is STPM Biology assessed?

Papers 964/1, 964/2 and 964/3 are each 60 marks (26.67%) over 1.5 hours: 20 MCQs, 2 structured questions and 2 essays. Candidates also take either 964/4 coursework (15 experiments across three semesters, 20%) or 964/5 written practical (3 structured questions, 45 marks, 20%, 1.5 hours), depending on candidate type (MPM Peraturan dan Skema Peperiksaan STPM 2026).

What does STPM Biology cost?

Private and individual private candidates pay a basic fee of RM120.00 plus RM90.00 per subject (MPM Peraturan dan Skema / FAQ Bayaran Yuran). Government and government-aided school candidates (types 1, 7 and 8) are exempt. Retaking a written paper costs RM50.00 per paper.

Are these practice questions the same as the official exam?

No. Official papers mix MCQs with structured and essay questions, and include either school practical coursework or a written practical. This bank is an English-language MCQ study adaptation of syllabus knowledge. It is not an official MPM paper, not an essay/structured simulation, and not a substitute for laboratory practical competence.

Who takes Paper 4 versus Paper 5?

Per MPM's scheme: candidate types 1 and 7 take 964/4 coursework; types 3 and 8 and candidates taking Biology outside the school package take 964/5 written practical; type 2 may choose Paper 4 or 5 subject to MPM approval.

How is STPM Biology graded?

STPM uses a cumulative grade point scale from A (4.00) to F (0.00). Grade C (2.00) and above is a principal pass (lulus penuh). The three written papers and the practical component combine into the subject grade under MPM rules.

Does Semester 3 emphasise Malaysian biodiversity?

Yes. Under the refined syllabus, Semester 3 includes biodiversity levels and conservation in a Malaysian context (ecosystem, species and genetic diversity), threats such as habitat conversion, and related ecology and genetics topics published in the MPM 964 sukatan dimurnikan.

100+ Free STPM Biology 964 Practice Questions

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