Daily Practice Problems Transport In Plants

Question 1:

Choose the correct options:

1. The movement of a molecule across the membrane irrespective of the other molecules is known as:

(a) Diffusion

(b) Uniport

(d) Symport

2. The water potential of pure water at standard temperatures is taken as:

(a) Zero

(b) Positive

(d) None of the above

3. A cell kept in a hypotonic solution undergoes:

(a) endosmosis

(b) exosmosis

(d) flaccidity

4. Endodermis of a root is impervious to water due to deposition of:

(a) Lignin

(b) Cutin

(d) Resin

Question 2:

Name the following:

1. Movement of molecules from their region of higher concentration to lower concentration kept in direct contact.

2. The bulk movement of substances through the conducting tissues of the plant.

3. The cytoplasmic strands through which neighbouring cells are connected.

4. A symbiotic association of a fungus with a root system.

5. The pressure responsible for guttation.

Question 3:

Fill in the blanks with appropriate words:

1. The pressure experienced on the cell wall due to increased pressure of the cell content is called ___________.

2. Water potential of solution is always __________ than the pure solvent.

3. The movement of water through xylem is ____________.

4. The sugar is transported to the plant parts in form of a disaccharide called __________.

5. In a _________, two molecules cross the membrane in the same direction but in _________, they move in opposite direction.

Question 4:

Complete the given analogies by observing the relation between the first two words and then filling an appropriate word at the fourth place:

1. No net movement : Isotonic :: Exosmosis : __________

2. Pure solvent : Zero :: Solution : __________

3. Symplast : Interconnected protoplasts :: Apoplast : __________

4. Diffusion : Direct contact :: Osmosis : __________

5. Unlike molecules : Adhesion:: Like molecules : ___________

Question 5:

What would happen to a living plant cell when placed in a:

(i) Hypotonic solution

(ii) Hypertonic solution

(iii) Isotonic solution

Question 6:

Define the following terms:

1. Osmosis

2. Water potential

3. Imbibition

4. Cohesion

5. Plasmolysis

Question 7:

State whether the following statements are true or false.

1. Numerically the osmotic pressure is equivalent to osmotic potential but osmotic pressure has a negative value but osmotic potential has a positive value.

2. Movement of molecules from lower concentration region to higher concentration region requires energy.

3. Movement of water takes place from lower water potential to higher water potential.

4. A cell placed in a hypertonic solution undergoes exosmosis.

5. Most minerals enter the roots by active absorption.

Question 8:

Match the columns A and B.

Column A	Column B
1. Transport proteins	a. Guttation
2. Semipermeable membrane	b. Transpiration pull
3. Root pressure	c. Facilitated diffusion
4. Endosmosis	d. Osmosis
5. Water transport	e. Turgidity

Question 9:

Suppose there are two cells A and B kept in contact. Cell A has the water potential = -10 bar. Cell B has water potential = -8 bar. What will be the direction of movement of water?

Question 10:

What are the two main components that determine the water potential? Briefly explain them.

Question 11:

How is active transport different from simple diffusion?

Question 12:

What is meant by guttation? Under what atmospheric conditions, could guttation occur?

Question 13:

Comment on the statement, “Movement of substances through xylem is unidirectional while through phloem is bidirectional.”

Question 14:

Explain the “cohesion-tension-transpiration pull model” of water transport.

Question 15:

List down the various factors that affect rate of transpiration in plants.

Question 16:

Justify the statement, “Transpiration is the price paid by a plant for performing photosynthesis.”

Question 17:

What is the role of casparian strip in water movement?

Question 18:

What is the role of mycorrhizal associations in absorption of water and minerals in plants?

Question 19:

Explain the mechanism of translocation of food in plants.

Question 20:

A complete ring of bark was removed from a tree in spring. The tree thrived through the summers but a swelling was seen on the bark above the ring while the bark below shrivelled up. Account for the swelling in the bark above the ring and the shrinking of the bark below the ring.

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Application of Knowledge: Problem-solving allows you to apply the theoretical concepts of the topic Class 11 Biology Transport In Plants you have learned to real-life situations. It helps you bridge the gap between abstract knowledge and practical scenarios, making the learning more relevant and meaningful.
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In summary, problem-solving after learning a theoretical concept on CBSE Transport In Plants Class 11 Biology is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.

You must have heard of the phrase “Practice makes a man perfect”. Well, not just a man, practice indeed enhances perfection of every individual.

Practicing questions plays a pivotal role in achieving excellence in exams. Just as the adage goes, "Practice makes perfect," dedicating time to solve a diverse range of exam-related questions yields manifold benefits. Firstly, practicing questions allows students to familiarize themselves with the exam format and types of problems they might encounter. This familiarity instills confidence, reducing anxiety and improving performance on the actual exam day. Secondly, continuous practice sharpens problem-solving skills and enhances critical thinking, enabling students to approach complex problems with clarity and efficiency. Thirdly, it aids in identifying weak areas, allowing students to focus their efforts on improving specific topics. Moreover, practice aids in memory retention, as active engagement with the material reinforces learning. Regular practice also hones time management skills, ensuring that students can allocate appropriate time to each question during the exam. Overall, practicing questions not only boosts exam performance but also instills a deeper understanding of the subject matter, fostering a holistic and effective learning experience.

All About Daily Practice Problems on Class 11 Biology Transport In Plants NCERT Chapter 11

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on Class 11 Biology Transport In Plants NCERT Chapter 11 useful.

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