12.1 The Characteristics of Plants Flashcards
1
Q
What do plants need?
A
- Energy
- Nutrients
- Water
- Gas exchange
- Protection from herbivores and diseases
- To reproduce
2
Q
Energy is produced from…
A
- Photosynthesis
- Conversion of incoming solar radiation to chemical
energy
- Conversion of incoming solar radiation to chemical
- Glucose is a carb
- Carbon/hydrogen/oxygen come in 1:2:1
- Carbs are needed for plant growth, maintenance and
development
3
Q
Nutrients
A
- Need specific nutrients: N, P, and K
- Used to synthesize proteins, lipids, and other compounds
4
Q
Why do plants need water
A
- Photosynthesis: one reactant in order to begin
photosynthesis - Growth and repair of cells
5
Q
Level of H2O
A
- Too little can cause plant to dehydrate, wilt, and die
- Too much can cause the plant to flood and die
6
Q
Gas Exchange Formula
A
CO2 + H2O w/ solar energy –> C6H12O6 (glucose) + O2
- The plant breathes through gas exchange
7
Q
The Vascular Plant Body
A
- Have three main non-reproductive organs
- The leaf, stem and root
8
Q
Difference between plant and animal cells
A
Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall.
9
Q
Types of Tissue
A
- Vascular plants are composed of 3 types of tissue: dermal, vascular, and ground tissue
10
Q
Meristematic Tissue
A
- Specialized tissue
- AKA meristem
-Undifferentiated cells (don’t have an initial specialized role, but will develop into a cell with a specific role)
11
Q
Phylogeny of plants
A
- Plants can be distinguished into 3 diff. types
- Lycophytes, pteridophytes, and gymnosperms and angiosperms
12
Q
Angiosperms
A
- Seeds from angiosperms can have one or two cotyledons
- These are diff structures in seeds or flowering plants that stores and supplies nutrients to the embryo
- If they have one cotyledon, they are monocots
- If they have two cotyledon, they are dicots
