PLANT STRUCTURE AND FUNCTIONS LEAF Flashcards
1
Q
chlorophyll
A
green pigments present in plants
2
Q
Blade
A
- the broad, flat part of a leaf.
3
Q
Petiole
A
– the part of a leaf that attaches the blade to the stem.
4
Q
Stipules
A
-are leaf like outgrowths usua ly present in pairs at the base of the petiole.
5
Q
Epidermis
A
covers upper and lower surface of the leaf blade
6
Q
Mesophyll
A
– the photosynthetic tissue in the interior of a leaf
7
Q
Major Tissues of the Leaf
A
epidermis
mesophyll
xylem
phloem
8
Q
Stoma
A
a smal pore flanked by guard cells in the epidermis
9
Q
Guard Cell
A
a cell in the epidermis of a stem or leaf; two guard cells form a pore, called a stoma,for gas exchange.
10
Q
Monocot Leaves
A
*usually narrow
*have parallel venation
11
Q
Dicot Leaves
A
*usually have a broad, flattened blade
*have netted venation
