NEET · BiologyMedium
The Casparian strips are found in the endodermis of roots. What is their primary chemical composition?
- A.Cellulose and pectin.
- B.Lignin and suberin.
- C.Cutin and wax.
- D.Chitin and protein.
Show correct answer & step-by-step solution
Correct answer: B — Lignin and suberin.
Solution
- The endodermis is the innermost layer of the cortex in roots.
- Casparian strips are water-impermeable bands.
- These bands are composed of hydrophobic substances, specifically suberin and lignin.
- They prevent the apoplastic movement of water into the vascular cylinder.
- Hence the answer is (B).
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Biology topics you need to revise.
Attempt & Track Free →More Plant Anatomy practice questions
- Which tissue is responsible for the transport of water and minerals in plants?
- Which of the following is a living mechanical tissue providing flexibility to young stems?
- Stomata are primarily responsible for which of the following processes?
- Which type of vascular bundle is found in dicot stems?
- The cells of the meristematic tissue are characterized by which of the following?
- In a dorsiventral leaf, the mesophyll tissue is differentiated into two distinct regions. What are these regions?
- Which of the following statements correctly describes the arrangement of vascular bundles in a typical dicot stem?
- The presence of bulliform cells in the epidermis of leaves is a characteristic feature of which plants?
- Which tissue is responsible for the secondary growth in the stelar region of a dicot stem?
- The presence of a 'conjunctive tissue' is a characteristic feature of which plant organ?
- In a dicot stem, the vascular cambium is initially formed from which of the following tissues during the process of seco
- Which of the following statements accurately describes the structural arrangement of the Casparian strip in the endoderm