PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free Bac D Burkina Faso Practice Questions

Prepare for the Baccalauréat Série D (Sciences de la Nature) — Burkina Faso exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More Burkina Faso Baccalauréat

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Burkina Faso Baccalauréat Série A4 (Lettres)

Practice Questions

Burkina Faso Baccalauréat Série C (Mathématiques et Physique)

Practice Questions

Burkina Faso Baccalauréat Série E (Mathématiques et Technique)

Practice Questions

Burkina Faso Baccalauréat Série F1 (Construction Mécanique)

Practice Questions

Burkina Faso Baccalauréat Série F3 (Électrotechnique)

Practice Questions

Burkina Faso Baccalauréat Série F4 (Génie Civil / BTP)

Practice Questions
2026 Statistics

Key Facts: Bac D Burkina Faso Exam

2026 D papers

Dedicated D mathematics, physical sciences and SVT first-tour papers

2026 national subject list

2 July 2026

First-tour D deliberations (example: jury 142)

leFaso

61.54%

National baccalauréat success rate, all series, 2026

MESFPT / leFaso

Free 100-question English MCQ study bank for Bac D Burkina Faso. Official exam: French written SVT, physics-chemistry and maths papers plus oral rachat; pass on a 10/20 weighted average. Not an official-format simulation.

Sample Bac D Burkina Faso Practice Questions

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

1In SVT at Terminale D level, which organelle produces most of the ATP of an aerobic animal cell?
A.The Golgi apparatus
B.The mitochondrion
C.The ribosome
D.The smooth endoplasmic reticulum
Explanation: Oxidative phosphorylation on the inner mitochondrial membrane yields the large majority of ATP during aerobic respiration. The Krebs cycle also runs in the mitochondrial matrix, feeding reduced coenzymes to the respiratory chain. Other listed organelles do not carry out this ATP-generating pathway.
2In double-stranded DNA, which base-pairing rule is correct?
A.Adenine pairs with thymine; guanine pairs with cytosine
B.Adenine pairs with guanine; thymine pairs with cytosine
C.Adenine pairs with cytosine; guanine pairs with uracil
D.Adenine pairs with uracil; guanine pairs with thymine
Explanation: Watson–Crick pairing in DNA is A–T (two hydrogen bonds) and G–C (three hydrogen bonds). Complementary pairing explains Chargaff's ratios and the semi-conservative replication of the double helix. Uracil replaces thymine in RNA, not in standard DNA.
3Where does glycolysis take place in a eukaryotic cell?
A.Mitochondrial matrix
B.Inner mitochondrial membrane
C.Cytosol
D.Stroma of the chloroplast
Explanation: Glycolysis is the anaerobic splitting of glucose to pyruvate and occurs in the cytosol. It yields a net of 2 ATP and 2 NADH per glucose and does not require oxygen or mitochondria. Pyruvate then enters mitochondria if respiration continues.
4Which statement correctly distinguishes RNA from DNA?
A.RNA contains deoxyribose and thymine, whereas DNA contains ribose and uracil
B.RNA is always double-stranded in the nucleus, whereas DNA is always single-stranded in the cytosol
C.RNA nucleotides contain ribose and commonly use uracil, whereas DNA nucleotides contain deoxyribose and thymine
D.RNA is found only in mitochondria, whereas DNA is found only in the nucleus
Explanation: RNA uses the pentose ribose and typically the base uracil; DNA uses deoxyribose and thymine. Cellular RNA is usually single-stranded (with local folding), while nuclear DNA is a double helix. Both nucleic acids can occur in the nucleus and in organelles that have their own genomes.
5For a monohybrid cross with complete dominance, what phenotypic ratio is expected in the F2 generation after selfing the F1 heterozygotes?
A.3 dominant phenotype : 1 recessive phenotype
B.1 dominant : 2 intermediate : 1 recessive
C.9 : 3 : 3 : 1
D.1 : 1 of the two parental phenotypes only
Explanation: Mendel's first law gives F2 genotypes 1 AA : 2 Aa : 1 aa. With complete dominance, AA and Aa share the same phenotype, so the F2 phenotypic ratio is 3:1. This is the classic monohybrid result taught in Terminale D genetics (monohybridisme avec dominance).
6In incomplete dominance (no dominance of one allele), a cross of two F1 heterozygotes yields which F2 phenotypic ratio?
A.3:1
B.1:2:1
C.9:3:3:1
D.1:1:1:1
Explanation: Without dominance, each genotype has a distinct phenotype, so the F2 ratio equals the genotypic ratio 1 AA : 2 Aa : 1 aa. The heterozygote is intermediate (for example pink flowers from red × white). This is monohybridisme sans dominance in the Burkina Faso Terminale D SVT programme.
7Two independently assorting genes each show complete dominance. What F2 phenotypic ratio is expected from selfing the double heterozygote AaBb?
A.3:1
B.1:2:1
C.9:3:3:1
D.1:1
Explanation: Independent assortment of two loci produces 16 equally likely gamete combinations. The phenotypes group as 9 A_B_ : 3 A_bb : 3 aaB_ : 1 aabb. This is Mendel's dihybrid ratio when genes are unlinked and dominance is complete.
8Two genes show absolute linkage (linkage absolu). In a test-cross of a double heterozygote with alleles in coupling (AB/ab × ab/ab), which progeny classes appear?
A.All four combinations AB, Ab, aB, and ab in equal numbers
B.Only the two parental types AB and ab
C.Only the two recombinant types Ab and aB
D.A 9:3:3:1 ratio of phenotypes
Explanation: Absolute linkage means crossing-over between the loci is not observed, so the heterozygote produces only parental gametes AB and ab. The test-cross therefore yields only parental progeny. Recombinants appear only if linkage is partial (linkage partiel) and crossing-over occurs.
9In a test-cross of a dihybrid, 12% of the offspring are recombinants. What is the map distance between the two loci on the carte factorielle?
A.12 centimorgans
B.24 centimorgans
C.6 centimorgans
D.88 centimorgans
Explanation: Map distance in centimorgans equals the recombination percentage in a test-cross: 12% recombinants means 12 cM. This assumes recombination is not so frequent that double crossovers hide true distance. Parental types then total 88%.
10Haemophilia A is an X-linked recessive trait (hérédité hétérosomale récessive). Which pedigree pattern is expected?
A.Father-to-son transmission in every generation, with daughters never affected
B.Equal numbers of affected males and females, with no skipped generations
C.Only females affected, because they have two X chromosomes
D.Many more affected males than females, no male-to-male transmission, and carrier mothers who can have affected sons
Explanation: An X-linked recessive allele is expressed in hemizygous males. A carrier mother transmits the allele to half her sons (affected) and half her daughters (carriers). An affected father transmits his X to all daughters and his Y to all sons, so he cannot give the trait to sons.

About the Bac D Burkina Faso Exam

Série D is Burkina Faso's natural-sciences Baccalauréat stream and the usual lycée pathway toward medicine, pharmacy and life-science faculties. MESFPT published 2026 first-tour papers in Mathématiques D, Sciences Physiques D and SVT D. Juries (for example jury 142 at lycée Marien N'Gouabi) proclaimed first-tour D results on 2 July 2026. Official tasks are written in French. This free English MCQ bank trains D-stream knowledge — it is not an official translation or a substitute for written SVT and problem papers.

Assessment

2026 first-tour papers include dedicated D mathematics, physical sciences and SVT plus shared C-D French, philosophy and history-geography, then oral rachat. This bank is an English MCQ study adaptation only.

Time Limit

Multi-paper written first tour (2026: 23 June–1 July) plus oral second tour (6–7 July 2026).

Passing Score

Graded out of 20; awarded on a weighted average of at least 10/20, with oral rachat for close candidates.

Exam Fee

Not published as a per-candidate tariff; the 2026 session was state-organized. (MESFPT (Ministère de l'Enseignement Secondaire, de la Formation Professionnelle et Technique))

Bac D Burkina Faso Exam Content Outline

Study emphasis ~28%

SVT

Cell biology, genetics, physiology, ecology, geology.

Study emphasis ~22%

Physics-chemistry

Mechanics, electricity, solutions, organic chemistry.

Study emphasis ~20%

Mathematics

2026 dedicated D mathematics paper.

Study emphasis ~10%

French

Shared C-D French paper.

Study emphasis ~10%

Philosophy

Shared C-D philosophy paper.

Study emphasis ~10%

History-geography

Shared C-D history-geography paper.

How to Pass the Bac D Burkina Faso Exam

What You Need to Know

  • Passing score: Graded out of 20; awarded on a weighted average of at least 10/20, with oral rachat for close candidates.
  • Assessment: 2026 first-tour papers include dedicated D mathematics, physical sciences and SVT plus shared C-D French, philosophy and history-geography, then oral rachat. This bank is an English MCQ study adaptation only.
  • Time limit: Multi-paper written first tour (2026: 23 June–1 July) plus oral second tour (6–7 July 2026).
  • Exam fee: Not published as a per-candidate tariff; the 2026 session was state-organized.

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Bac D Burkina Faso Study Tips from Top Performers

1Build SVT diagrams (immunity, neurophysiology, genetics) from memory.
2Practise D mathematics and physical-sciences calculations, not only definitions.
3Use 2026 SVT and PC annales after MCQ review.
4Keep French and philosophy in the weekly plan; they still enter the average.

Frequently Asked Questions

Is the official Bac D multiple choice?

No. Official papers are written in French, with an oral second tour. This bank is an English MCQ study adaptation.

Is Série D required for medicine?

UFR/SDS historically required Bac C or D with mention for medicine and pharmacy. Série D is the natural-sciences pathway; always verify the current CampusFaso notice.

When were 2026 first-tour D results proclaimed?

First-tour deliberations were reported on 2 July 2026, with oral second tour on 6–7 July.