Exam 9/6/18 Flashcards
(250 cards)
Open or close stomata
Guard cells
Protect or absorb
Trichomes
Protect against disease and retard water loss
Cork cells
Found on nettles and sting
Trichomes
Where on the plant are the apical meristems found?
Tips of roots and shoots
Which type of wood is found in the center of old tree trunks and roots?
Heartwood
Which type of wood is found near the surface of old tree trunks and roots?
Sapwood
Give an example of a tree with pinnate leaf venation (veins)?
Magnolia
Vascular tissue closest to the stem surface.
Phloem
Why do climbing stems curl?
The contacted area of the stem causes the cell growth to become inhibited while the other surface continues to grow = contact inhibition.
These specialized stems decrease surface area and offer protection.
Spines
Vascular tissue closest to the stem center.
Xylem
Tissue around vascular bundles.
Ground tissue
Give examples of leaves that store water or food.
Cactus, onions
Scales that protect a young bud.
Bud scales
scattered in monocots and in a ring in dicots
Vascular bundles
Conducts water.
Xylem
Vascular bundles are call these in leaves.
Leaf veins
Provide the “skeleton” of the leaf
Leaf veins
Conducts food.
Phloem
List some plant roots that contain spices.
Sassafras, Angelica, licorice
Rotenone is an insecticide that comes from a root. True or false?
True
Dyes and drugs have been taken from roots. True or false?
True
List some tap roots and fibrous roots that serve as food storage?
Carrots, sweet potatoes, radishes, beets