3.2+3.3 - The Leaf Tissues & Gas Exchange Flashcards
1
Q
The ______ is a collection of tissues whose main purpose is to carry out or support the process of ______
A
Leaf
Photosynthesis
2
Q
Dermal, ground, and vascular tissue all have a ______ purpose and function
A
Particular
3
Q
The ______ has specialized cells to maximize its ability to exchange ______
A
Leaf
Gases
4
Q
Leaf dermal tissue
- the ______ is on both the top and underside of the leaf and is clear and very thin
- specialized cells called ______ cells form tiny openings or pores, mostly on the underside of the leaf called ______
- ______ allows gas exchange to happen easily
- they open to air hammers that connect with cells of the ______ tissue
- CO2 and oxygen can enter and exit the cell by ______ (dependent on the gradient)
A
Epidermis Guard Stomata Stomata Ground Diffusion
5
Q
______ cells
- control whether the ______ is open or closed
- stimulated by ______ (active transport—needs energy)
- protect the leaves from losing too much ______
- the process of water leaving the leaf through the ______ is called ______
A
Guard Stomata Light Water Stoma Transpiration
6
Q
Leaf ground tissue
- between the upper and lower ______ of the leaf we specialized ground tissues called ______
A
Epidermis
Mesophyll
7
Q
Mesophyll tissues
- there are two kinds: ______ and ______
A
Palisade mesophyll tissue cells
Spongy mesophyll tissue cells
8
Q
______ mesophyll tissue cells
- below the epidermis
- responsible for ______
A
Palisade
Photosynthesis
9
Q
______ mesophyll tissue cells
- loosely packed, irregularly shaped cells
- allows for ______ by diffusion throughout the leaf
A
Spongy
Gas exchange
10
Q
Leaf vascular tissue
- leaf ______
- provides the leaf with water needed for ______ and ______ (xylem)
- removed ______ (phloem) formed from ______
- the xylem and phloem are bunched together in ______ bundles
A
Veins Transpiration Photosynthesis Sugars Photosynthesis Vascular
11
Q
Gas exchange in plants
- the leaf is not the only place where ______ occurs
- ______ are pores which occur along woody stems and mature roots
- look like slashes or blisters
A
Gas exchange
Lenticels
