100+ Free UPMSP Intermediate Biology Practice Questions

Prepare for the Uttar Pradesh UPMSP Intermediate (Class 12) Biology — Code 153 exam with instant access — no signup required.

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2026 Statistics

Key Facts: UPMSP Intermediate Biology Exam

3h 15m

Duration of UPMSP Class 12 Biology theory board exam

UPMSP Official Scheme

70 Marks

Theory paper total marks (30 marks for practical assessment)

UP Board Exam Blueprint

33%

Minimum passing threshold for theory and practical individually

UPMSP Examination Regulations

100 MCQs

Verified practice questions in this question bank

OpenExamPrep

Master UPMSP Class 12 Biology (Code 153) with 100 verified practice MCQs covering Reproduction, Genetics, Evolution, Human Health, Biotechnology, and Ecology.

Sample UPMSP Intermediate Biology Practice Questions

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

1Which layer of the microsporangial wall provides nourishment to the developing pollen grains in flowering plants?

A.Tapetum

B.Endothecium

C.Epidermis

D.Middle layers

Explanation: The tapetum is the innermost wall layer of the microsporangium. Its cells possess dense cytoplasm and usually have more than one nucleus, providing vital nutrients to the developing microspores and pollen grains.

2The hard outer layer of a pollen grain, exine, is composed of which highly resistant organic material?

A.Pectocellulose

B.Sporopollenin

C.Chitin

D.Suberin

Explanation: Sporopollenin is one of the most resistant biological materials known. It withstands high temperatures, strong acids, and alkali, and cannot be degraded by any known enzyme, allowing pollen grains to be preserved as fossils.

3A typical mature angiosperm female gametophyte (embryo sac) at the time of fertilization is:

A.8-celled and 8-nucleate

B.7-celled and 7-nucleate

C.7-celled and 8-nucleate

D.8-celled and 7-nucleate

Explanation: The monosporic Polygonum type embryo sac undergoes three free-nuclear mitotic divisions resulting in 8 nuclei. Cell wall formation organizes 3 antipodals, 2 synergids, 1 egg cell, and 1 large central cell containing 2 polar nuclei, making it 7-celled and 8-nucleate.

4Double fertilization, a phenomenon unique to angiosperms, was first discovered by which scientist?

A.E. Strasburger

B.P. Maheshwari

C.Antonie van Leeuwenhoek

D.S. G. Nawaschin

Explanation: S. G. Nawaschin (1898) discovered double fertilization in Lilium and Fritillaria plants. Double fertilization involves syngamy (egg fertilization) and triple fusion (primary endosperm nucleus formation).

5What is the ploidy level of the endosperm tissue formed after double fertilization in angiosperms?

A.Triploid (3n)

B.Haploid (n)

C.Diploid (2n)

D.Tetraploid (4n)

Explanation: In angiosperms, the endosperm is formed by triple fusion—the fusion of one haploid male gamete (n) with two haploid polar nuclei (2n) in the central cell—resulting in a triploid (3n) primary endosperm nucleus (PEN).

6Flowers that never open and strictly undergo autogamy are called:

A.Chasmogamous flowers

B.Cleistogamous flowers

C.Staminode flowers

D.Dioecious flowers

Explanation: Cleistogamous flowers remain permanently closed. Since their anthers and stigma lie close to each other, self-pollination (autogamy) is assured without relying on external pollinators.

7The development of seeds without fertilization in certain species of Asteraceae and grasses is known as:

A.Parthenocarpy

B.Polyembryony

C.Apomixis

D.Amphimixis

Explanation: Apomixis is a form of asexual reproduction that mimics sexual reproduction, where seeds develop without fertilization. It is commercially valuable in hybrid seed industries.

8What is the primary function of the filiform apparatus present at the micropylar tip of synergid cells?

A.Nourish the egg cell

B.Protect the antipodal cells

C.Prevent self-pollination

D.Guide the entry of the pollen tube into the synergid

Explanation: The filiform apparatus consists of finger-like cellular thickenings at the micropylar tip of the synergids that secrete chemical attractants to guide the pollen tube into the embryo sac.

9In the human female reproductive tract, fertilization normally takes place in which specific site?

A.Ampullary region of the Fallopian tube

B.Uterine cavity

C.Cervical canal

D.Infundibulum

Explanation: Fertilization occurs at the ampullary region (ampullary-isthmic junction) of the Fallopian tube (oviduct), where the sperm meets the released secondary oocyte.

10Which cells located inside the seminiferous tubules provide nutrition to the developing germ cells?

A.Leydig cells

B.Sertoli cells

C.Chromaffin cells

D.Kupffer cells

Explanation: Sertoli cells (sustentacular cells) reside within the seminiferous tubules and supply essential nutrients, growth factors, and support to spermatogenic cells during spermatogenesis.

About the UPMSP Intermediate Biology Exam

The Uttar Pradesh UPMSP Intermediate (Class 12) Biology — Code 153 examination evaluates high school students on core biological sciences aligned with NCERT standards. Key units include Reproduction, Genetics and Evolution, Biology in Human Welfare, Biotechnology, and Ecology. This comprehensive 100-question practice set provides thorough, NCERT-verified questions with detailed explanations to help students master both theoretical concepts and board exam question formats.

Assessment

State board examination comprising 70 marks theory (MCQs, short answer, and long structured descriptive questions) and 30 marks practical assessment.

Time Limit

3 hours 15 minutes (195 minutes)

Passing Score

33% aggregate pass mark (23 marks in theory and 10 marks in practicals)

Exam Fee

₹600.75 for institutional (regular) Intermediate candidates and ₹806 for private candidates for the 2026 examination, plus ₹206 per additional subject. UPMSP charges one registration fee per candidate, not per subject paper. (Uttar Pradesh Madhyamik Shiksha Parishad (UPMSP))

UPMSP Intermediate Biology Exam Content Outline

20%

Reproduction

Sexual reproduction in flowering plants, human reproductive systems, gametogenesis, menstrual cycle, fertilization, embryonic development, and reproductive health.

35%

Genetics & Evolution

Mendelian inheritance, chromosomal inheritance, molecular biology (DNA, RNA, replication, transcription, translation, lac operon, HGP, DNA fingerprinting), and evolutionary mechanisms.

15%

Biology & Human Welfare

Human health, infectious diseases, immunity, cancer, AIDS, drug abuse, and useful microbes in sewage, industry, agriculture, and biogas production.

15%

Biotechnology & Its Applications

Recombinant DNA tools (restriction enzymes, vectors, PCR) and applications in agriculture (Bt crops, RNAi) and medicine (genetically engineered insulin, gene therapy).

15%

Ecology & Environment

Organismal adaptation, population dynamics, ecosystem structure/energetics, ecological pyramids, and biodiversity conservation strategies.

How to Pass the UPMSP Intermediate Biology Exam

What You Need to Know

Passing score: 33% aggregate pass mark (23 marks in theory and 10 marks in practicals)
Assessment: State board examination comprising 70 marks theory (MCQs, short answer, and long structured descriptive questions) and 30 marks practical assessment.
Time limit: 3 hours 15 minutes (195 minutes)
Exam fee: ₹600.75 for institutional (regular) Intermediate candidates and ₹806 for private candidates for the 2026 examination, plus ₹206 per additional subject. UPMSP charges one registration fee per candidate, not per subject 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

UPMSP Intermediate Biology Study Tips from Top Performers

1Master NCERT diagrams such as the anatomy of flower, human sperm/ovum, seminiferous tubule, female reproductive system, DNA replication fork, transcription unit, and lac operon.

2Understand monohybrid and dihybrid cross ratios, linkage vs independent assortment, and pedigree analysis chart symbols.

3Memorize key enzymatic steps in recombinant DNA technology, including restriction endonucleases, DNA ligase, Taq polymerase, and vector characteristics.

4Revise microbial scientific names and their applications (e.g., Saccharomyces cerevisiae, Methanogens, Trichoderma, Baculovirus, Aspergillus niger).

5Practice ecology concepts such as population growth equations (exponential vs logistic), ecological pyramid rules and exceptions, and in-situ vs ex-situ conservation examples.

Frequently Asked Questions

What is UPMSP Code 153 Biology?

Code 153 is the official subject code for Intermediate (Class 12) Biology in the Uttar Pradesh Board (UPMSP).

How is the UPMSP Class 12 Biology paper structured?

The examination consists of 70 marks for written theory and 30 marks for internal practical evaluation. Theory includes objective MCQs, short answer, and long answer questions.

Is the UPMSP Class 12 Biology syllabus based on NCERT?

Yes, UPMSP has fully adopted the NCERT Class 12 Biology curriculum.

What is the minimum passing mark for UPMSP Class 12 Biology?

Students must score at least 23 marks out of 70 in theory (33%) and 10 marks out of 30 in practicals to pass.

Which topic carries the highest marks weightage?

Genetics and Evolution carries the maximum weightage at approximately 35% (18 out of 70 marks in theory).

100+ Free UPMSP Intermediate Biology Practice Questions

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