Casparian strips occur in - DASH

Your AI-Powered Personal Tutor

Question

Casparian strips occur in

pericycle

epidermis

endodermis.

cortex

Solution

Please login to view the detailed solution steps...

Go to DASH

© All Rights reserved @ LearnWithDash

Step-by-Step Explanation 1. Understanding the Concept of Casparian Strips The Casparian strips are bands of a waterproof substance (primarily suberin) found in the cell walls of certain cells in plant roots. These strips ensure that water and dissolved substances entering the plant root must pass through the cells rather than around them. 2. Location of Casparian Strips Casparian strips are located in the endodermis of roots. The endodermis is the innermost layer of the cortex, lying between the cortex and the vascular tissues (xylem and phloem). 3. Structural Significance The strips are typically found on the radial and tangential walls of the endodermal cells. Their suberin-rich composition forms a barrier that forces water and minerals to travel through the protoplasts of the endodermal cells, thereby regulating the entry of nutrients and preventing harmful substances from reaching the vascular system. 4. Importance in Plant Physiology By controlling the flow of substances into the vascular tissue, the Casparian strip maintains the plant’s selectivity for nutrient uptake, ensuring only necessary and beneficial materials enter the xylem for transport throughout the plant. Hence, they are best observed in the endodermis.

Subject Backlinks

Biology Subject Chemistry Subject Mathematics Subject Physics Subject Subjects Subject

Quiz Backlink

Parent Quiz 794278

Related Question Backlinks

Question 794344 Question 794349 Question 794342 Question 794352 Question 794337 Question 794354 Question 794336 Question 794356 Question 794331 Question 794358 Question 794330 Question 794362 Question 794326 Question 794364 Question 794324 Question 794368 Question 794321 Question 794370 Question 794320 Question 794372