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