Question

49. Which of the following type of cell is NOT a part of X? A. Tracheids B. Sieve cells C. Sieve tubes D. Companion cells​

Answer 1

Answer: A. Tracheids

Answer 2

A. Tracheid is not a part of X.

Explanation:

• The vascular system of plant has two types of tissues namely Xylem and Phloem.
• The former conducts water from root to other parts of the plants whereas the latter conducts food prepared through photosynthesis from leaves to other parts of the plant.
• The components of Xylem are:  Xylem vessels, Fiber and Tracheids.
• The components of Phloem are: Phloem fibers, sieve tubes, sieve cells, phloem parenchyma and companion cells.
• In the given options parts such as sieve tubes, sieve cells, and companion cells are located in Phloem.
• Tracheids is located only in the Xylem.
• Thus it is inferred that, Tracheids is not a part of X (Phloem).