Biology question, don't spam. Why is the phloem transport substances up the plant when there is no photosynthesis?

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant. it produces food. it absorbs nutrients. it supports the plan

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

Describe the two types of vascular tissue