Kingdom PlantaeLand Plants
Mr. SkirbstLife Science
Topic 14
Land Plants
RequirementsLand plants need to …
RequirementsLand plants need to …1. Provide support (so they
don’t collapse)
RequirementsLand plants need to …1. Provide support2. Obtain water + minerals
RequirementsLand plants need to …1. Provide support2. Obtain water + minerals3. Transport materials (food,
water + minerals)
RequirementsLand plants need to …1. Provide support2. Obtain water + minerals3. Transport materials4. Prevent water loss
RequirementsLand plants need to …1. Provide support2. Obtain water + minerals3. Transport materials4. Prevent water loss5. Get sperm & egg together!
Kinds of Land Plants1. Non-vascular (primitive)
Kinds of Land PlantsNon-vascular (primitive)- Simple structures
Kinds of Land PlantsNon-vascular (primitive)- Simple structures- Must live in moist areas
Kinds of Land PlantsNon-vascular (primitive)- Simple structures- Must live in moist areas- Absorb water through all
body parts
Kinds of Land PlantsNon-vascular (primitive)Ex. Mosses, liverworts,
hornworts
Kinds of Land PlantsNon-vascular (primitive)Ex. Mosses, liverworts,
hornwortsHuman uses: used for fuel
(burning) & diapers (primitive cultures)
Kinds of Land Plants2. Vascular
Kinds of Land Plants2. Vascular- land plant with vascular tissue
Kinds of Land Plants2. Vascular- land plant with vascular tissue
Vascular tissue – a system of tiny tubes
2 Kinds of Vascular TissuePhloem -
2 Kinds of Vascular TissuePhloem – transports food
- movement is up & down
2 Kinds of Vascular TissueXylem -
2 Kinds of Vascular TissueXylem – transports water &
minerals
2 Kinds of Vascular TissueXylem – transports water &
minerals- Movement only upwards
2 Kinds of Vascular TissueXylem – transports water &
minerals- Movement only upwards- Thick cell walls
Vascular Plants
Vascular PlantsVascular Plants have roots,
stems, and leaves
Roots- Anchor plant in ground
Roots- Anchor plant in ground- Absorb water & minerals
from soil
Roots- Anchor plant in ground- Absorb water & minerals
from soil- Store materials (food) for
plant for later use
Roots2 Types of roots:
Roots2 Types of roots:1. Fibrous (tangled mass)(ex. grass)
Roots2 Types of roots:2. Tap (deep & penetrating)(ex. carrots)
Stems- Provide support
Stems- Provide support- Transport materials
(between roots & leaves)
Stems2 Kinds of stems:1. Herbaceous (green & soft)
(Ex. dandelions)
Stems2 Kinds of stems:2. Woody (hard & rigid)
- made of layers of xylem(ex. trees & shrubs)
StemsTypical structure: Outer bark
(hard & protective)
Phloem
Vascular cambium(new growth area)
Layers of xylem(growth rings)
Pith(soft core)
Leaves- Produce food through
photosynthesis
LeavesTypical Structure:
LeavesPhotosynthesis:
Types of leaves1. Needle-shaped
(ex. Pine, spruce, hemlock, larch)
Types of leaves2. Simple (one main stem; blade in one
piece)(ex. Oak, maple, apple, cherry)
Types of leaves3. Compound (leaf blade contains many
stems; blade in several pieces)(ex. Locust, hickory, ash, walnut)
Vascular Tissue Dissection