9th class biology guess paper 2020 pdf
You may download the guess paper in pdf but, this time, here it is given in text form too. It means you can copy the text and share it through WhatsApp or as a text message. Now this is upto you how you use this guess paper.9th class biology important short questions
Here are chapterwise important short questions of biology for class 9th.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 -7
- 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 biology
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
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