7Question 3 AnswerXylem transports water and nutrients from the roots up to the other parts of the plant. Phloem transports sugar from the leaves to all of the other parts of the plant.
8Question 4How are the trunk of a tree and a stem of a flowering plant the same?
9Question 4 AnswerThe trunk of the tree and a stem of a flowering plant are both made up of vascular bundles that transport water, nutrients, and sugar to different parts of the plant.
10Question 5How do the rings in a tree trunk form?
11Question 5 AnswerAs the tree grows, it produces new vascular tissue. The oldest tissue is in the center of the stem, and the newest living tissue is in the outer part of the trunk.
12Question 6When you look at a cross section of a tree trunk, why are some trunk rings narrow and others wide? What does that tell you about the tree?
13Question 6 AnswerWide rings of a tree trunk are laid down during very wet years when the tree produces lots of xylem cells to transport the water from the roots to the rest of the plant and then transpire through the stomata.During a dry year, the tree doesn’t grow many xylem cells, so the ring is narrow.
14Question 7How is the vascular system of plants like the circulatory system of humans?
15Question 7 Answer Vascular Plants Human Both plants and people have specialized structures fortransport nutrients to cells.One-way transportation system for water & minerals (up) and a second one-way system for sugar (down.)Have a Circulatory System with blood that goes around the human body.Plants have a xylem and a phloem.Arteries, capillaries, and veins for transportation of nutrients