Which listed plant nutrient is a macronutrient?
- Boron
- Zinc
- Iron
- Potassium
Answer / جواب
Potassium
Class 9 Biology Chapter 9 MCQs — Plant Physiology
Class 9 Biology · Chapter 9 · Retained syllabus for Annual 2027
Practise this chapter online, check each answer and review your result. The current bank contains 8 objective questions for this chapter and medium.
Sample practice questions
What is the main absorption advantage of root hairs?
- Storage of pollen
- Production of flowers
- Protein synthesis in soil
- Greater surface area
Answer / جواب
Greater surface area
How does water enter root-hair cells from the soil?
- Phloem translocation
- Osmosis
- Active transport of water
- Protein synthesis
Answer / جواب
Osmosis
Which cells regulate most stomatal transpiration?
- Root hairs
- Phloem sieve tubes
- Xylem vessels
- Guard cells
Answer / جواب
Guard cells
Printable practice
Use custom mode for a chapter paper. Board Annual mode uses the complete prescribed syllabus and published question distribution for supported subjects.