Biology Guess Paper HSSC-II 2025
Are you preparing for the FBISE Biology HSSC-II (2nd Year) exams in 2025? This carefully curated guess paper highlights the most important exercises and questions from the National Book Foundation syllabus to help you focus on key topics and score better.
Important Questions & Topics for FBISE Exams 2025
GUESS PAPER
Chapter 14 - Respiration
- Properties of Respiratory surface
- Structure of lungs
- Comparison of inspiration and expiration
- Tidal volume,inspiratory reserved volume
- How breathing process is controlled by respiratory centre
- Differentiate between haemoglobin and myoglobin
- What is hamburger's phenomenon
- Harmful chemicals present in cigarettes smoke
- Transport of carbon diode in blood (Long Question)
Chapter 15 - Homeostasis
- Osmoregulation in marine animals and terrestrial animals
- Excretion for mcqs
- Structure and function of nephron
- Counter current multiplier mechanism
- Vasodilation vs vasoconstriction
Chapter 16 - Support and Movement
- Comparison between bones and cartilage
- Division of human skeleton (vertebral column, Appendicular skeleton)
- Cartilaginous joints and synovial joints
- Differentiate between different types of muscles
- Antagonistic arrangements of skeletal muscle
- Bone repair, Sliding filament model (Long Question)
Chapter 17 - Nervous coordination
- Brain
- Effect of drugs in nervous coordination
- Alzheimer's disease
- Generation and transmission of nerve impulses, synapse (Long Question)
Chapter 18 - Chemical coordination
- Graves' disease
- Pancreas
- Pituitary gland, Gonads (Long Question)
Chapter 19 - Behavior
- Orientation behavior
- Imprinting, latent learning, altruism
- Note: prepare short answers only from this chapter
Chapter 20 - Reproduction
- Female reproductive cycle and it's hormonal regulation, In vitro fertilization (Long Question)
Chapter 21 - Development and aging
- Holoblastic cleavage vs meroblastic cleavage
- Gastrulation, neurulation in human embryo, Embryonic induction, birth and nursing (Long Question)
Chapter 22 - Inheritance
- Limitations of Mendal laws
- Numerical problems about blood relationship
- Erythroblastosis fetalis
- Dominance vs epistasis
- Crossing over, test cross
- Pattern of sex determination and problem related to it
- Haemophilia
- Sex-linkage in humans
- Ex Question # 14,20,26,27,31
Chapter 23 - Chromosomes and DNA
- Chromosomes vs genes
- Define different models of DNA replication
- Down syndrome, KU
- Griffith experiment, Mechanism of DNA replication, Transcription, translation (Long Question)
Chapter 24 -Evolution
- Drawbacks of Lamarckism
- Darwin theory of natural selection
- Homologous organs vs analogous organs
- Genetic drift, speciation
Chapter 25 - Man and his Environment
- Concept of trophic levels
- Effects of global warming
- Ecological succession (Long Question)
- Stages of succession
Chapter 26 - Biotechnology
- Tissue culture vs animal culture
- DNA sequencing
- PCR,sanger-coulson method of DNA sequencing (Long Question)
Chapter 27 - Biology and human welfare
- Role of microbes in energy production
- Acclimatization, Backcross
- Vaccination against measles
- Vaccination and it's importance