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Chapter 25 Test

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1.
1 point
The main function of root hairs is to _____.
2.
1 point
Component of bark; waterproofs, insulates, and protects the surfaces of woody stems and roots.
3.
1 point
Typically, vascular tissue is organized as _____ in stems and as _____ in roots.
4.
1 point
Hairlike, absorptive extensions of a young cell of root epidermis.
5.
1 point
Of vascular plant roots, sheathed, cylindrical array of primary xylem and phloem. Outer boundary is called endodermis, separating it from cortex.
6.
1 point
Vascular cambium or cork cambium; also sheetlike cylinder of meristem that gives rise to plant secondary growth. In roots, arise from pericycle; in shoots, arise from meristem between xylem and phloem in vascular bundles.
7.
1 point
Outermost tissue layer of a plant or an animal. Secrete waxy substances to conserve water and repel pathogens, form stomata for exchange of gasses.
8.
1 point
Zone of undifferentiated plant cells that can divide rapidly and becomes specialized tissue.
9.
1 point
The activity of lateral meristems _____ older roots and stems
10.
1 point
Complex plant vascular tissue that distributes sugars through living sieve elements like sieve tubes.
11.
1 point
A vascular bundle in a leaf is called _____.
12.
1 point
Secondary phloem and periderm of woody plants. Informal term for periderm and all living and dead tissue outside ring of vascular cambium.
13.
1 point
Ground tissue consists mainly of _____.
14.
1 point
In phloem, parenchyma cell that loads sugars into sieve tubes.
15.
1 point
Roots and shoots lengthen through activity at _____.
16.
1 point
In plants, a lateral meristem that gives rise to periderm--cork, cambium and every other tissue between the two.
17.
1 point
All of the vascular bundles inside a typical _____ are arranged in a ring.
18.
1 point
Of vascular plants, a ring of meristematic vascular tissue that produces secondary xylem on inner surface (called wood) and secondary phloem on outer surface.
19.
1 point
Epidermis and periderm are _____ tissues.
20.
1 point
In a(n) _____, the primary root is typically the largest.
21.
1 point
True or false? Lateral roots form at nodes on roots.
22.
1 point
In plant roots, layer of endodermal cells that separates vascular cylinder from cortex.
23.
1 point
An onion is a _____ (choose all that apply).
24.
1 point
Tree rings occur because _____.
25.
1 point
Complex vascular tissue of plants; its dead tracheids and vessel members distribute water and mineral ions.
26.
1 point
Cell that forms water-conducting tubes in xylem of vascular plants.
27.
1 point
Conducting tube of phloem.
28.
1 point
In plants, fibers are a type of _____ cell.
29.
1 point
Which of the following cell types stay alive when they mature? Choose all that apply.
30.
1 point
Thickening of older stems and roots; originates at lateral meristems in eudicot and gymosperm species.
31.
1 point
Tapered cell that forms water-conducting tubes in xylem of vascular plants.
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