Biology Class 9 Chapter 8: Plant Physiology

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• Class 9
• Biology
• Chapter 8
• FBISE SSC-I

Chapter summary

Chapter 8 of Biology for Class 9 is called "Plant Physiology". It covers 14 learning outcomes of the Federal Board syllabus. You will learn to: define mineral nutrition in plants; categorize minerals nutrients of plants into. Parhayi.com has 394 MCQs, 83 short questions and 18 long questions for this chapter.

Topics in this chapter

• Define mineral nutrition in plants
• Categorize minerals nutrients of plants into…
• State that nitrogen is important in protein synthesis and…
• Conceptualize transport and its needs
• Explain the internal structure of root and root hair
• Describe how roots take up water and mineral salts by…
• Describe transpiration and relate this process with cell…
• Describe temperature, wind and humidity as the factors…
• Describe the mechanism of transport of water and salt in…
• Explain the mechanism of food translocation by, the…
• Describe the process of gaseous exchange in plants
• Define homeostasis and describe its importance
• Describe the mechanism and adaptations in plants for the…
• Explain osmotic adjustments in plants

Sample questions

Try these questions from the chapter. The answers are for Premium students.

1. Complete the following table:

   Substance	Obtained from	Used in plant for
   1. Carbon dioxide	Atmosphere, through stomata	Making food
   2. Nitrogen	?	?
   3. Magnesium	?	?
   4. Water	?	?

   (3 marks)
2. Write the difference between gas exchange in leaves and gas exchange in roots. (3 marks)
3. Define translocation. Name the tissue and the main sugar involved. (3 marks)

What Premium gives you in this chapter

• 394 MCQs with answers and explanations
• 83 short questions with full answers
• 18 long questions with answers
• 14 Learn cards
• 69 Activities and games
• chapter tests that show your weak topics

Biology is the study of living things. Learn the diagrams with their labels, keep the key terms in your own words, and revise each chapter with short questions.