Class 10 Biology ICSE Solutions | Step-by-Step, Free

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Get free Frank Brothers Solutions for ICSE Class 10 Biology, in PDF. Solved step by step by experienced teachers, these cover every exercise in the current ICSE Class 10 Biology book by Frank Brothers, matched to the latest syllabus. They help with class work, revision, and better Class 10 exam scores, covering every chapter-end exercise.

Class 10 Biology Frank Brothers Solutions, ICSE

Here are the newest ICSE Solutions for Class 10 Biology, covering key questions and answers, matched to the current ICSE books for this year.

Download Links for Frank Brothers Biology Solutions

Frank Brothers: Chapter 01 Cell Division for Class 10
Chapter 01 Cell Division for Class 10 ICSE Solutions
Frank Brothers: Chapter 02 Structure Of Chromosomes
Chapter 02 Structure Of Chromosomes ICSE Solutions
Frank Brothers: Chapter 03 Principles Of Genetics
Chapter 03 Principles Of Genetics ICSE Solutions
Frank Brothers: Chapter 04 Absorption By Roots
Chapter 04 Absorption By Roots ICSE Solutions
Frank Brothers: Chapter 05 Transpiration
Chapter 05 Transpiration ICSE Solutions
Frank Brothers: Chapter 06 Photosynthesis
Chapter 06 Photosynthesis ICSE Solutions
Frank Brothers: Chapter 07 Circulatory System
Chapter 07 Circulatory System ICSE Solutions
Frank Brothers: Chapter 08 Excretory System
Chapter 08 Excretory System ICSE Solutions
Frank Brothers: Chapter 09 Nervous System
Chapter 09 Nervous System ICSE Solutions
Frank Brothers: Chapter 10 Endocrine System
Chapter 10 Endocrine System ICSE Solutions
Frank Brothers: Chapter 11 Reproductive System
Chapter 11 Reproductive System ICSE Solutions
Frank Brothers: Chapter 12 Human Population
Chapter 12 Human Population ICSE Solutions
Frank Brothers: Chapter 13 Health
Chapter 13 Health ICSE Solutions
Frank Brothers: Chapter 14 Health Organisations
Chapter 14 Health Organisations ICSE Solutions
Selina Concise: Chapter 01 Cell Cycle Cell Division and Structure Of Chromosomes
Chapter 01 Cell Cycle Cell Division and Structure Of Chromosomes ICSE Solutions
Selina Concise: Chapter 02 Genetics Some Basic Fundamentals
Chapter 02 Genetics Some Basic Fundamentals ICSE Solutions
Selina Concise: Chapter 03 Absorption By Roots The Process Involved
Chapter 03 Absorption By Roots The Process Involved ICSE Solutions
Selina Concise: Chapter 04 Transpiration
Chapter 04 Transpiration ICSE Solutions
Selina Concise: Chapter 05 Photosynthesis Provider of Food for All
Chapter 05 Photosynthesis Provider of Food for All ICSE Solutions
Selina Concise: Chapter 06 The Circulatory System
Chapter 06 The Circulatory System ICSE Solutions
Selina Concise: Chapter 07 The Excretory System Elimination Of Body Wastes
Chapter 07 The Excretory System Elimination Of Body Wastes ICSE Solutions
Selina Concise: Chapter 08 The Nervous System
Chapter 08 The Nervous System ICSE Solutions
Selina Concise: Chapter 09 Endocrine Glands
Chapter 09 Endocrine Glands ICSE Solutions
Selina Concise: Chapter 11 Population The Increasing Numbers and Rising Problems
Chapter 11 Population The Increasing Numbers and Rising Problems ICSE Solutions
Selina Concise: Chapter 12 Aids To Health
Chapter 12 Aids To Health ICSE Solutions
Selina Concise: Chapter 13 Health Organisations
Chapter 13 Health Organisations ICSE Solutions
Selina Concise: Chapter 14 Pollution A Rising Environmental Problems
Chapter 14 Pollution A Rising Environmental Problems ICSE Solutions

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Free study material for Biology

Textbook Solutions for Class 10 Biology (ICSE)

Comprehensive solutions for the Frank Brothers ICSE textbook for Class 10 Biology, aligned strictly with the active 2026-27 curriculum. Authored by experienced educators, these detailed step-by-step answers provide thorough coverage across all chapter exercises, establishing a reliable academic foundation for formal school evaluations.

Independent problem-solving followed by structured solution review allows candidates to verify computational accuracy, refine answer presentation, and build rigorous conceptual mastery ahead of formal 2026-27 examinations.

Why These Class 10 Biology Solutions Help

Working through verified chapter solutions sharpens problem-solving precision and deepens overall conceptual understanding across the complete Biology curriculum.

  1. Utilize step-by-step solution breakdowns to master proper derivation and formatting techniques.
  2. Identify challenging chapter modules through comparative self-assessment and allocate additional revision time accordingly.
  3. Integrate textbook exercise reviews with platform revision notes for a comprehensive study strategy.
  4. Examine both theoretical proofs and practical numerical problems to ensure balanced subject mastery.
  5. Incorporate daily practice with official ICSE solution sets to cultivate familiarity with expected evaluation standards.

ICSE Solutions for Class 10 Biology by Frank Brothers

Prescribed ICSE solution sets offer high alignment with official evaluation patterns for 2026-27. Regular review of end-of-chapter questions ensures candidates are fully prepared for standard examination formats and question distributions.

Download Frank Brothers ICSE Solutions for Class 10 Biology

Digital editions of verified textbook solutions are provided free of charge, enabling students to review complex problem sets offline at any time while maintaining a structured preparation workflow.

ICSE Class 10 Biology - Marks Weightage & Syllabus Structure

Official CISCE guidelines for the 80-mark board theory paper and 20 marks internal assessment.

Biology UnitsMarks Allocation
Basic Biology (Cell Cycle, Chromosomes & Genetics)15 Marks
Plant Physiology (Absorption, Transpiration, Photosynthesis)20 Marks
Biology UnitsMarks Allocation
Human Anatomy & Physiology (Circulatory, Excretory, Nervous, Endocrine, Reproductive)30 Marks
Population, Health, Hygiene & Pollution15 Marks
Weightage distribution across ICSE Class 10 Biology units (out of 80) Human Anatomy & Physiology (Circulatory, Nervous, Systems) 30 Marks Plant Physiology (Photosynthesis, Transpiration, Absorption) 20 Marks Basic Biology, Genetics, Health & Pollution 30 Marks Total

Diagrammatic questions, biological terms, and physiological reasoning carry substantial weightage across all sections.

Core Teaching Periods - ICSE Class 10 Biology

Recommended instructional periods as per Selina Concise and Frank Brothers textbooks.

1. Cell Cycle, Division & Chromosomes 18 Periods 2. Genetics & Principles of Inheritance 15 Periods 3. Plant Physiology (Absorption, Transpiration, Photosynthesis) 35 Periods 4. Human Systems (Circulatory, Excretory, Nervous) 42 Periods 5. Endocrine & Reproductive Systems 20 Periods 6. Population, Health, Hygiene & Pollution 18 Periods

Preview a Solved Question From Each Biology Chapter

Expand to see a key conceptual problem and solution preview, or jump directly to the chapter section above.

Frank Bros - Ch 01 Cell Division for Class 10
Q. What is the significance of mitosis in living organisms?
Mitosis ensures growth, repair of damaged tissues, replacement of worn-out cells, and maintenance of the same chromosome number in daughter cells.
Jump to chapter
Frank Bros - Ch 02 Structure Of Chromosomes
Q. Define a chromosome and name its primary chemical components.
A chromosome is a condensed thread-like structure visible during cell division carrying genetic information. Its primary components are DNA (Deoxyribonucleic acid) and histone proteins.
Jump to chapter
Frank Bros - Ch 03 Principles Of Genetics
Q. State Mendel's Law of Segregation.
The law states that allele pairs separate during gamete formation, and randomly unite at fertilization, so that each gamete carries only one allele for each gene.
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Frank Bros - Ch 04 Absorption By Roots
Q. What is imbibition? Give a biological example.
Imbibition is the phenomenon of absorption of water by solid hydrophilic colloids without forming a solution. Example: Absorption of water by dry wooden doors or swelling of dry seeds in water.
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Frank Bros - Ch 05 Transpiration
Q. Why is transpiration considered a 'necessary evil'?
It creates a transpirational pull for upward conduction of water and minerals and cools the plant, but excessive transpiration can cause wilting and water stress.
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Frank Bros - Ch 06 Photosynthesis
Q. Write the overall balanced chemical equation for photosynthesis.
$6CO_2 + 12H_2O \xrightarrow[\text{Chlorophyll}]{\text{Sunlight}} C_6H_{12}O_6 + 6O_2 + 6H_2O$.
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Frank Bros - Ch 07 Circulatory System
Q. Why are valves present in human heart veins?
Valves prevent the backflow of blood, ensuring that blood flows in only one direction (towards the heart).
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Frank Bros - Ch 08 Excretory System
Q. What is the functional unit of the human kidney? Name its two main parts.
Nephron. Its two main parts are the Malpighian corpuscle (Bowman's capsule and glomerulus) and the renal tubule.
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Frank Bros - Ch 09 Nervous System
Q. Distinguish between a reflex action and a conditioned reflex.
A reflex action is an inborn, automatic, unlearned response to a stimulus; a conditioned reflex is an acquired or learned response based on past experience or training.
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Frank Bros - Ch 10 Endocrine System
Q. What condition is caused by the hypersecretion of growth hormone during childhood?
Gigantism.
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Frank Bros - Ch 11 Reproductive System
Q. Where does fertilization normally take place in the human female reproductive system?
In the Fallopian tube (oviduct).
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Frank Bros - Ch 12 Human Population
Q. Define population density and birth rate (natality).
Population density is the number of individuals living per unit area at a given time. Natality is the number of live births per thousand individuals of a population per year.
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Frank Bros - Ch 13 Health
Q. How did WHO define health?
Health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.
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Frank Bros - Ch 14 Health Organisations
Q. What are the key functions of the Red Cross Society?
Providing emergency relief during disasters, organizing blood donation camps, and assisting in first aid and healthcare services.
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Selina Concise - Ch 01 Cell Cycle Cell Division and Structure Of Chromosomes
Q. What is the difference between mitosis and meiosis in terms of chromosome number?
Mitosis produces daughter cells with the same diploid ($2n$) chromosome number as the parent cell; meiosis produces haploid ($n$) daughter cells (half the chromosome number).
Jump to chapter
Selina Concise - Ch 02 Genetics Some Basic Fundamentals
Q. Differentiate between phenotype and genotype.
Phenotype refers to the observable physical or biochemical characteristics of an organism; genotype refers to the genetic makeup or internal allele constitution of an organism.
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Selina Concise - Ch 03 Absorption By Roots The Process Involved
Q. Define osmosis. What are the conditions necessary for it?
Osmosis is the movement of water molecules from a region of higher water concentration to a region of lower water concentration through a semipermeable membrane.
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Selina Concise - Ch 04 Transpiration
Q. What factors affect the rate of transpiration?
Light intensity, temperature, humidity, wind speed, and atmospheric pressure.
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Selina Concise - Ch 05 Photosynthesis Provider of Food for All
Q. What is the role of light-dependent reaction (photochemical phase) in photosynthesis?
It takes place in the grana of chloroplasts where sunlight is trapped by chlorophyll, water molecules photolyze into hydrogen and oxygen, and ATP and NADPH are generated.
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Selina Concise - Ch 06 The Circulatory System
Q. What is the difference between systole and diastole?
Systole is the contraction phase of the heart chambers (atria or ventricles); diastole is the relaxation phase during which chambers fill with blood.
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Selina Concise - Ch 07 The Excretory System Elimination Of Body Wastes
Q. What are the two main steps involved in urine formation?
Ultrafiltration (in the glomerulus) and selective reabsorption/tubular secretion (in the renal tubule).
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Selina Concise - Ch 08 The Nervous System
Q. What is a synapse? How is nerve impulse transmitted across it?
A synapse is the junction between two adjacent neurons. Nerve impulses cross it via chemical neurotransmitters released from axon terminals into the synaptic cleft.
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Selina Concise - Ch 09 Endocrine Glands
Q. Why are endocrine glands called ductless glands?
Because they do not have ducts to secrete their products; they pour their hormones directly into the bloodstream.
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Selina Concise - Ch 11 Population The Increasing Numbers and Rising Problems
Q. What are the major consequences of rapid population growth in developing nations?
Shortage of food, housing, employment, pressure on natural resources, environmental degradation, and strain on public healthcare and education systems.
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Selina Concise - Ch 12 Aids To Health
Q. Differentiate between active immunity and passive immunity.
Active immunity is developed by the body's own immune system when exposed to pathogens or vaccines; passive immunity is conferred ready-made from an outside source (e.g., mother's antibodies via placenta or antitoxins).
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Selina Concise - Ch 13 Health Organisations
Q. What is the role of UNICEF in child welfare?
UNICEF (United Nations Children's Fund) works globally to provide long-term humanitarian and developmental assistance to mothers and children, focusing on nutrition, immunization, and education.
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Selina Concise - Ch 14 Pollution A Rising Environmental Problems
Q. What is acid rain and what are its primary causes?
Acid rain is precipitation made acidic by atmospheric pollution (sulfur dioxide and nitrogen oxides released from burning fossil fuels), which lowers soil/water pH and damages monuments.
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FAQs

Where can I find the latest ICSE Frank Brothers solutions for Class 10 Biology?

You can download the latest chapter-wise solutions for Frank Brothers Class 10 Biology for free from StudiesToday.com. Our solutions are updated for the 2026-27 session as per the official ICSE marking scheme.

Do these Biology solutions include diagram-based questions for Class 10 ICSE?

Yes, our Biology solutions provide detailed explanations and diagrams for all textbook exercises. This is important for ICSE students, as diagram-based questions carry high marks in the exams.

Are the Frank Brothers Biology solutions available in PDF format?

Yes. You can download the Frank Brothers Class 10 Biology solutions in PDF format to study offline and also access teacher-verified answers.

How can using Frank Brothers solutions improve my Class 10 Biology marks?

Practicing with these solutions helps Class 10 students learn the important terms and point wise answers required by ICSE. It will help you to get more marks.

Are these ICSE Biology solutions free to download?

Yes, all Frank Brothers and other ICSE textbook solutions for Class 10 Biology are available for free on StudiesToday. No subscription or sign-up is required.

Is it helpful to solve Frank Brothers exercises for the 2026 ICSE Biology exam?

Yes, solving textbook exercises good to build conceptual clarity. Our solved papers for Class 10 Biology are helpful to identify and correct your weak areas.