What enzyme adds base pairs in order to create the new strands in DNA replication?
In plants, sucrose is the major transport form for photoassimilated carbon and is both a source of carbon skeletons and energy for plant organs unable to perform photosynthesis (sink organs).As a molecule translocated over distance, sucrose has to pass through a number of membranes.n plants, sucrose is the major transport form for photoassimilated carbon and is both a source of carbon skeletons and energy for plant organs unable to perform photosynthesis (sink organs).
The xylem also provides a secondary function of structural support for the plant. The xylem acts like a spine that helps keep the plant upright. The texture of a stem often varies based on the amount of xylem tissue found in the plant. For example, woody tree stems have a large amount of hard xylem tissue. While, herbaceous stems, like flowers, have a small amount of xylem tissue.