NEET BIOLOGY

STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS

ANATOMY OF FLOWERING PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Xylem is a conducting tissue for water and minerals from roots to the upper parts of the plant. Which of the following statement about Xylem is correct?
A
In flowering plants sieve tube and tracheids are the main water transporting elements
B
Xylem is composed of tracheids, vessels, sieve tube and xylem fibres
C
Vessels are present in Gymnosperms and not in Angiosperms
D
Tracheids are dead, tube like cells with thick lignified tapering ends
Explanation: 

Detailed explanation-1: -Tracheids are dead tubular cells with tapering ends, vessels with thin elongated structures that have a tubular appearance, and no cytoplasm.

Detailed explanation-2: -Xylem is a complex permanent tissue. It is responsible for the upward conduction of water and minerals in plants. Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres. Xylem fibres are mainly supportive in function.

Detailed explanation-3: -xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as tracheary elements.

Detailed explanation-4: -The main function of the xylem is water transport from roots to the other parts of the plant. Xylem also provides mechanical strength. Tracheids and vessels are the main elements for conducting water.

There is 1 question to complete.