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Biology Chapter 23 Test

Terms in this set (22)

In angiosperms, xylem consists of tracheids and...
Vessel Elements
Vascular tissue in plants consists of...
xylem and phloem
To ovserve mitosis, which of the following should a student examine under a compound microscope?
tip of a shoot
The layer of cells that encloses the vascular tissue in the central region of a root is the...
endodermis
The vascular cylinder of a root consists of...
phloem and xylem
Many cacti, such as saguaros and barrel cacti, have large stems and no leaves. What function of leaves is taken on by the stems of such cacti?
They produce food by photosynthesis
Oxygen and carbon dioxide move in and out of a leaf through the...
stomata
The attraction of water molecules to other kinds of molecules is called ...
Adhesion
According to the pressure-flow hypothesis, which of the following statements is NOT true?
The movement of water into a nutrient-rich region of the phloem decreases the pressure in that region.
Ground tissue is found in a plant's
roots, stems, and leaves
In plants, the opening and closing of stomata balance water loss with the need for carbon dioxide
T
...at the tips of stems and roots produce rapid growth in plants
Meristems
In xylem and phloem, the cells that keep their nuclei and organelles are the...
companion cells
If some of the xylem of a young oak tree were destroyed, it would most likely interfere with the tree's ability to...
conduct water to the leaves
Damage to which are of the root will prevent the root from growing longer...
epidermis
The layer of cells that encloses the vascular tissue in the central region of a root is the...
endodermis
Unlike roots, stems
may play a part in photosynthesis
The area of a root through which water cannot pass is the epidermis
False (endodermis; Casparian Strip)
In roots,........increase the surface area through which water and minerals can diffuse
root hairs
The..... on a stem contain apical meristems that can produce new stems and leaves
buds
During.......... cells in the apical meristems become longer, adding to the length of roots and stems
Primary Growth
........Control the opening and closing of stomata
Guard Cells
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