Chapter Exam

Chapter 11: Transport in Plants — Online MCQ Test

Q: The movement of molecules from a region of higher concentration to a region of lower concentration is called:

Answer: A. Diffusion — Diffusion is the net movement of particles from a region of higher concentration to lower concentration until equilibrium is reached.

Q: Which of the following is responsible for the transport of water in plants?

Answer: B. Xylem — Xylem tissue consists of tracheids and vessels which are specialized for the upward conduction of water and minerals.

Q: Water potential of pure water at standard temperature and pressure is:

Answer: C. Zero — By convention, the water potential of pure water is taken as zero.

Q: Analyze the Cohesion-Tension theory: Which property of water allows the water column to remain unbroken during ascent?

Answer: D. All of the above — The column stays intact due to mutual attraction (cohesion), attraction to xylem walls (adhesion), and surface tension properties.

Q: A cell is placed in a solution and remains unchanged in size. This solution is described as:

Answer: C. Isotonic — In an isotonic solution, the water potential outside and inside the cell is equal, resulting in no net movement of water.

BOTANY · CLASS 11th · Tamil Nadu State Board

Practice Chapter 11: Transport in Plants with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 11th BOTANY. This chapter covers: This chapter covers water movement mechanics diffusion osmosis plasmolysis and water potential concepts. Students study xylem ascent of sap phloem translocation mechanisms and tran.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 11: Transport in Plants — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 11th BOTANY — Chapter 11: Transport in Plants, with answers and explanations. These are sample questions; the exam has its own separate question set.

The movement of molecules from a region of higher concentration to a region of lower concentration is called:

A. Diffusion ✓
B. Osmosis
C. Active transport
D. Facilitated diffusion

Answer: A. Diffusion
Diffusion is the net movement of particles from a region of higher concentration to lower concentration until equilibrium is reached.

Which of the following is responsible for the transport of water in plants?

A. Phloem
B. Xylem ✓
C. Cortex
D. Pith

Answer: B. Xylem
Xylem tissue consists of tracheids and vessels which are specialized for the upward conduction of water and minerals.

Water potential of pure water at standard temperature and pressure is:

A. 1
B. Negative
C. Zero ✓
D. Infinity

Answer: C. Zero
By convention, the water potential of pure water is taken as zero.

Analyze the Cohesion-Tension theory: Which property of water allows the water column to remain unbroken during ascent?

A. Adhesion and cohesion
B. High specific heat
C. Surface tension
D. All of the above ✓

Answer: D. All of the above
The column stays intact due to mutual attraction (cohesion), attraction to xylem walls (adhesion), and surface tension properties.

A cell is placed in a solution and remains unchanged in size. This solution is described as: