DENDROLOGY

DENDROLOGY AND SOCIETY

FAMILIES OF ANGIOSPERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why Gnetum sp. have an advanced features compared to other Gymnosperm plants?
A
Xylem consist of tracheid only
B
Phloem consists of sieve tube and companion cell
C
Produce spores
D
Gametophyte is dominant
Explanation: 

Detailed explanation-1: -Companion cells are the cells found in angiosperms with abundant plasma and nucleus. Complete answer: In Gymnosperms, the phloem lacks both the sieve tube and the corresponding cells. Instead they contain sieve cells for food material conduction.

Detailed explanation-2: -Gymnosperms aren’t equipped with sieve tubes or companion cells.

There is 1 question to complete.