NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM PLANTAE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements are true about plants in the Phylum Coniferophyta? I Xylem tissue lacks xylem vessels II Phloem tissue lacks companion cell III Heterosporous IV Shows alternation of generation
A
I, II, and III
B
I, II and IV
C
II, III and IV
D
I, II, III and IV
Explanation: 

Detailed explanation-1: -Detailed Solution. The correct answer is Phloem transports photosynthetic products. Phloem is a living tissue in vascular plants that conducts the soluble organic compounds synthesized downwards from the leaves during photosynthesis. Hence option 2 is correct.

Detailed explanation-2: -Xylem does not help in the transport of photo sent its or sugars. Instead, it helps only in the transport of water and minerals. Therefore, the first statement is not true.

Detailed explanation-3: -Vascular tissue in plants comprises of xylem and phloem. Both are conducting tissues. Xylem transports water and minerals from root to other parts of the plant. They have a unidirectional flow.

Detailed explanation-4: -Xylem tissue consists of tracheids, vessels, xylem parenchyma and fibres. The xylem in gymnosperms consists of only tracheids and xylem parenchyma, vessels are absent (exception-Gnetales).

There is 1 question to complete.