Important Questions For Biology 9th Paper

 Important Questions For Biology 9th Paper

 9th Class guess paper 2025 has been prepared for Biology Paper. All the students are directed to prepare it well for the best result in board examination. This guess paper of Biology ensures everyone to obtain good marks in the examination.  Keep it in view that this guess paper are selected syllabus but it covers all the syllabus of Biology.

It will help the students in Biology including the following boards Board of Intermediate and Secondary Education, Lahore (BISE Lahore) Board of Intermediate and Secondary Education, Rawalpindi (BISE Rawalpindi) Board of Intermediate and Secondary Education, Faisalabad (BISE Faisalabad) Board of Intermediate and Secondary Education, Sargodha (BISE Sargodha) Board of Intermediate and Secondary Education, Gujranwala (BISE Gujranwala) Board of Intermediate and Secondary Education, Multan (BISE Multan) Board of Intermediate and Secondary Education, Bahawalpur (BISE Bahawalpur) Board of Intermediate and Secondary Education, Sahiwal (BISE Sahiwal) Board of Intermediate and Secondary Education, D.G. Khan (BISE D.G. Khan)

Guess of Biology is as under.

Biology CH # 1
Science, [Divisions of biology (S.Q + L.Q)], [Any 8 branches of Biology ( S.Q + L.Q)], biological
issues, parasite, [biochemistry , biogeography , bio physics and bio economics( S.Q + L.Q)] vvv.imp,
[Agriculture , animal husbandry, fisheries and forestry ( S.Q + L.Q)]vvv.imp, books name of each
Muslim scientist, bio elements and names ,Biomolecule & types of molecules, cell and organelle, tissue
and organ, community and its types , population and species , habitat and biosphere, scientific name of
frog and mustard, advantage of brassica plant, vegetative and reproductive parts, What is volvox? Why
organ system of animals more complex than plants? SHORT QUESTIONS EXERCISE: 1 , 2
Biology CH # 2
Biological method and steps, biological problem, type of observations with two examples, hypothesis
and its characteristics, deduction, how we summarize and reporting the results, control group and
experimental group, contribution of Levran, AFA King observations, incubation period, why do welts
appear after mosquito bites? Why Ronald ross use sparrow? Why and how data is organized? Ratio
and proportion, bioinformatics. How does scientist ensure the quality of data for public use? H.M
Biology SHORT QUESTIONS EXERCISE: 1,2
Biology CH # 3
Flora and fauna, [Biodiversity and its importance (S. Q + L.Q )] vvv.imp, Why biodiversity not evenly
distributed on earth? aims of classification, Taxon, Species the basic unit of classification? (S. Q + L.Q
) Linnaeus kingdoms, [Classification of human and pea(S. Q + L.Q )], Basis of five kingdom system,
write two characteristics of kingdom Monera, plantae and fungi, how many types of protests and
write their names, decomposers with example, prion and viroid, [binomial nomenclature and its rules
(S. Q + L.Q )],scientific name of onion, house crow and common sea star, Eucalyptus plant , two causes
and effects of deforestation, How do forests keep balance in biosphere? [Indus dolphin , Morcopolo
sheep, Houbara bustard(S. Q + L.Q)]vvvvv.imp, Why viruses are not included in five kingdoms /
status of virus (V . V. V. IMP)
SHORT QUESTIONS EXERCISE: 1,3,5
Biology CH # 4
Primary and secondary wall, cell membrane and plasma membrane, fluid mosaic model, Ribosomes
and cytoplasm with function of cytoplasm and ribosomes(S. Q + L.Q )], cisternae and cristae, [RER
and SER (S. Q + L.Q )] vvv.imp, [lysosomes(S. Q + L.Q )],Centriole with its function(S. Q + L.Q) ,
Vacuole(S. Q + L.Q) cytoskeleton, active and passive transport, osmosis, reverse osmosis, ,turgor
pressure and plasmolysis, [endocytosis and exocytosis (S. Q + L.Q ]), phagocytosis and pinocytosis,
filtration, skeletal and smooth muscles, sclerenchyma and collenchyma , Xylem and phloem, primary
and secondary growth, intercalary meristems, Types of solution, sieve tube and companion cells,
cuboidal and columnar epithelium H. M
SHORT QUESTIONS EXERCISE : 2, 3, 4
Biology CH # 5
Cell cycle and its phases, interphase and its phases, S ,G1, G2 and G0 phase, mitosis and meiosis,
somatic and germ cells, karyokinesis and cytokinesis, mitotic spindle, How cytokinesis occurs in
plants and animals? chromatin and chromosome, metaphase plate? role of telophase, development and
growth, , regeneration, types of tumors and metastasis , diploid and haploid cells, ,chiasmata,
synapses and crossing over, disjunction and non-disjunction, Alternation of generation, blebs and
apoptotic bodies, apoptosis and necrosis with its causes, advantages of apoptosis, why meiosis not
occur in prokaryotes? Plants not make gametes by meiosis why? Why meiosis called reduction
division? How spindle fibers formed? How cell replacement occurs in living organisms?
SHORT QUESTIONS EXERCISE : 2, 3, 4
Biology CH # 6
Metabolism catabolism and anabolism, substrate and product, activation energy and how enzymes
lower the activation energy(S. Q + L.Q ] Most Imp, two characteristics of enzymes, enzymes and its
types, prosthetic group, active site and its function, uses of enzymes (S. Q + L.Q ]), optimum temp and
pH, denaturation of enzyme, saturation of active site, effects of Ph on enzyme activity, Mechanism of
enzyme action (lock and key model, induced fit model) (S. Q + L.Q ])
specificity of enzymes (S. Q + L.Q]), Function of co enzymes and its names
SHORT QUESTIONS EXERCISE: 1 ,2
Biology CH # 7
Bioenergetics, Oxidation and reduction, redox reaction, When and who discovered ATP write its
functions, fermentation, Subunits of ATP, anaerobes, how soy sauce is made? limiting factor with
example, pigments with is types, light reaction and dark reaction, photosynthesis with equation and
cellular respiration, Difference between aerobic and anaerobic respiration,[alcoholic and lactic acid
fermentation (S. Q + L.Q )], photolysis of water and Z scheme, [glycolysis and krebs cycle(S. Q +
L.Q) ][ETC (S. Q + L.Q ],[Energy Budget(S. Q + L.Q) ] vvvv.imp
SHORT QUESTIONS EXERCISE: 1, 3, 4
Biology CH # 08
Nutrition and nutrient, autotroph and heterotroph, macro and micro nutrients, fertilizer and it
types, role of nitrogen and magnesium, Lipids and its types, sources and role of lipids and protein,
minerals and its types, role of iron and calcium, sources of vitamin A and C, scurvy symptoms,
insoluble and soluble dietary fiber, balance diet, assimilation ingestion and digestion,[marasmus and
kwashiorkor (S.Q +L.Q) ] mastication , churning, peristalsis, functions of large intestine, appendix,
gastric juice and its composition , pepsin and pepsinogen , drawbacks of caffeine
SHORT QUESTIONS EXERCISE : 1,2 ,3 (Most Imp)
Biology CH # 09
(Symptoms, causes, mosquito name and prevention of Dengue fever must be prepared)
Transpiration pull, pressure flow mechanism, source and sink, blood and blood plasma, name type
of blood cells and its functions, pericardium and pericardial fluid, heartbeat, why human heart work
as double pump, universal donor and recipient, pulmonary and systematic circulation, arteries and
veins, factors of transpiration pull, heartbeat pulse and myocardial infarction, angina pectoris,
angioplasty and bypass surgery, vascular surgery, cohesion tension theory, How blood is separated
from blood? What is pulse and pus? How lub dub sound is produced? H.M
SHORT QUESTIONS EXERCISE: 1, 2, 3,5,6, 7,8 (Most Imp)
IMP NOTE FOR WEAK STUDENTS TO GET MAXIMUM MARKS:
FOR SHORT QUESTIONS FOCUS ON: • CH # 1 & 2 (5 Questions) FOR 1ST SECTION • CH # 5 & 6 (6 Questions) FOR 2nd SECTION • CH # 3 & 7 (5 Questions) FOR 3RD SECTION.
SOME CONCEPTUAL QUESTIONS (FOR BRILLIANT STUDENTS)
How can statistical methods be applied to biological data analysis? What are the major causes of
species extinction? Why is overhunting a significant threat to certain animal species? Give example.
Compare skeleton and smooth muscles regarding location and control. Explain plant epidermis and give
one example of a specialized epidermal structure. Why meiosis is necessary for sexual reproduction?
Why crossing over in meiosis is essential for genetic diversity? Describe key events occur during
prophase of mitosis. How enzymes lower activation energy? How substrate concentration affects the
rate of enzymes action? Write concept of bioenergetics and its significance in living organisms. How do
limiting factors such as light intensity and temperature affects the rate of photosynthesis? Describe the
symptoms and effects of vitamin A deficiency. How does malnutrition relate over nutrition? What is
the main function of dietary fiber in human diet? Discus the major causes of famine and their impact on
food availability. How do iodine deficiency lead to the development of goiter? Why RBC, s are important
in human circulatory system? Why human heart work as double pump?
LONG QUESTIONS
Q.5 (CH # 1 & 3) Q.6 (CH # 4 & 6) Q.7 (CH # 7 & 8)