Plant Physiology

Biology, SSC-Punjab Class 9. This chapter is split into 32 topics and has 791 practice questions. The topics covered are listed below, followed by 10 free sample questions from the chapter.

Topics in this chapter

1. Transport of water in plants: transpirational pull 23 questions
2. Transport in plants: xylem, phloem, and transport mechanisms 23 questions
3. Excretion of wastes in plants 25 questions
4. Osmotic adjustments in plants: mesophytes, hydrophytes, xerophytes, and halophytes 26 questions
5. Micronutrients and the roles of nitrogen and magnesium 25 questions
6. Gaseous exchange in plants 23 questions
7. Factors affecting the rate of transpiration 21 questions
8. Mineral nutrition in plants: macronutrients 30 questions
9. Root structure and the uptake of water and salts 27 questions
10. Transpiration: definition, types, and stomatal mechanism 26 questions
11. Translocation of food: the pressure flow mechanism 27 questions
12. Learning outcomes and key points of Plant Physiology 22 questions
13. End-of-chapter exercise items of Plant Physiology 24 questions
14. Nutrition in plants: terms, autotrophs and heterotrophs 22 questions
15. Macronutrients: finding the element from its role 30 questions
16. Micronutrients: finding the element from its role 30 questions
17. Nitrogen, magnesium and chlorosis scenarios 22 questions
18. Transport in plants: passive transport, active transport and osmosis scenarios 24 questions
19. Internal structure of the root: layers and pathways 24 questions
20. Uptake of water and salts by root hairs: reasoning and numbers 28 questions
21. Transpiration: types, pathway and leaf structure 25 questions
22. Guard cells and the opening and closing of stomata 25 questions
23. Factors affecting transpiration: scenarios and comparisons 26 questions
24. Transpirational pull and the continuous water column 22 questions
25. Translocation of food: source, sink and Figure 9.6 26 questions
26. Gaseous exchange in plants: day and night scenarios 21 questions
27. Excretion in plants: gases, water and other wastes 26 questions
28. Osmotic adjustments: mesophytes, hydrophytes, xerophytes, halophytes 24 questions
29. Glossary terms related to Plant Physiology 23 questions
30. Plant Physiology: chapter map, figures, learning outcomes and exercise structure 27 questions
31. Plant Physiology: comparisons and classification across sections 22 questions
32. Plant Physiology assertion-reason: mixed true and false statements 22 questions