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9th Class Guess papers 2020|Biology guess paper 2020|Punjab board|Notes

 ■ 9th class biology important short
    questions



Chapter-1

Definitions of: botany, zoology
microbiology, morphology,
anatomy, cell biology, genetics, cell
biology, biogeography
Contribution of Muslims
Scientists

Chapter-2

Definitions of: biological method,
scientific method, biological
problem, control group, law and
theory, ratio, bioinformatics,
deductions
Characteristics of a good
hypothesis
observation and its types

Chapter-3

Definitions of: biodiversity,
species, biosphere, endangered
species, binomial nomenclature
basis of classification
aims of classifications

Chapter-4

Definitions of: magnification,
resolution, resolving power, turger
pressure, Fluid mosaic model,
diffusion, osmosis, facilitated
diffusion, active transport
composition of cell wal
mitochondria as powerhouse of
the cell
light and dark reactions
role of nucleus

Chapter-5

Definitions of: Meiosis, mitosis,
crossing over, chromatid,
apoptosis, necrosis, chiasmata
differentiate between somatic
cells and sperms
What happens in G0 phase?
differentiate between malignant
and benign tumors

Chapter-6

Definitions of: Enzymes, catalyst,
co-enzyme, cofactor, prosthetic
groups, optimum temperature,
lock, and key model, induced fit
model
what is meant by denaturation of
an enzyme?
name the factors affecting
enzyme activity

Chapter-Z

Definitions of: bioenergetics,
oxidation and reduction, aerobic
and anaerobic respiration, light
reactions/dark reaction, limiting
factor, ATP
Differentiate between alcoholic
and lactic acid fermentation

Chapter-8

Definitions of: Nutrition,
fertilizers, digestion, balanced diet,
bolus, chyme, micronutrients
functions of the oral cavity
significance of water
Sources of Vitmain A, C and D

Chapter-9

Definitions of: Transpiration,
cohesion-tension theory,
pulmonary circulation,
transpirational pull
functions of xylem and phloem in
plants
transpiration is a necessary evil.
explain.
composition of blood
Universal donor and universal
recipients

   ■ 9th class Biology important Long
       questions

1. Careers in bioloay
2. Contributions of Muslim Scientists
3. Write a note on cellular Organization
4.steps of solving biological problem
5. What are biodiversity and which factor
affect biodiversity
6. Characteristics of the five-kingdom system
7. Fluid mosaic model of the cell membrane
8. Structure and Functions of Nucleus
9. Types of plastids, structure and functions
10. Differences between eukaryotic and
prokaryotic cells
11. Endocytosis and exocytosis with diagram
12. Cell cycle and its phases
13. Light and dark reactions
14. Cell cycle and its phases
15. Mitosis and its types
16. Metabolism, functions and types.
17. factors affecting the rate of enzyme action
18. Importance of fertilizers
19. Role of the liver and its importance
20. role of the small intestine in digestion
21. Write a note on the ABO blood system
22. Effects of Malnutrition
23. Structure and functions of human heart
24. Causes, symptoms and treatment of
myocardial infarction

Best of Luck!

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