Q. What is the term for the movement of water across a semi-permeable membrane?
A.
Diffusion
B.
Osmosis
C.
Active transport
D.
Facilitated diffusion
Solution
Osmosis is the movement of water across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
Q. What is the term for the movement of water through a plant against gravity?
A.
Translocation
B.
Transpiration
C.
Capillarity
D.
Hydrolysis
Solution
Transpiration refers to the process of water movement through a plant and its evaporation from aerial parts, which helps in moving water against gravity.
Q. Which of the following is a method of water transport in plants?
A.
Cohesion
B.
Adhesion
C.
Both cohesion and adhesion
D.
None of the above
Solution
Both cohesion (water molecules sticking to each other) and adhesion (water molecules sticking to other surfaces) are important for water transport in plants.
Plant Physiology - Transport in Plants MCQ & Objective Questions
Understanding "Plant Physiology - Transport in Plants" is crucial for students preparing for school and competitive exams in India. This topic not only forms a significant part of the syllabus but also features prominently in various objective questions and MCQs. Practicing these questions helps students solidify their concepts and enhances their exam performance, making it easier to tackle important questions effectively.
What You Will Practise Here
Key concepts of water transport in plants, including osmosis and transpiration.
Mechanisms of nutrient transport through xylem and phloem.
Definitions and explanations of important terms like turgor pressure and root pressure.
Diagrams illustrating the structure of xylem and phloem.
Formulas related to water potential and its significance in plant physiology.
Factors affecting the rate of transpiration and their implications.
Comparative analysis of active and passive transport mechanisms in plants.
Exam Relevance
The topic of "Plant Physiology - Transport in Plants" is frequently tested in CBSE, State Boards, NEET, and JEE exams. Students can expect questions that assess their understanding of transport mechanisms, the role of different plant tissues, and the physiological processes involved. Common question patterns include multiple-choice questions that require students to apply their knowledge to real-life scenarios or diagrams, making it essential to grasp these concepts thoroughly.
Common Mistakes Students Make
Confusing the roles of xylem and phloem in transport processes.
Misunderstanding the concept of osmosis and its application in plants.
Overlooking the significance of environmental factors on transpiration rates.
Failing to relate theoretical concepts to practical examples in plant physiology.
FAQs
Question: What is the main function of xylem in plants? Answer: Xylem primarily transports water and dissolved minerals from the roots to the rest of the plant.
Question: How does transpiration affect nutrient transport? Answer: Transpiration creates a negative pressure that helps pull water and nutrients upward through the xylem.
Now is the time to enhance your understanding of "Plant Physiology - Transport in Plants"! Dive into our practice MCQs and test your knowledge to ensure you are well-prepared for your exams. Remember, consistent practice is key to mastering this essential topic!
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