WHAT IS A PLANT

Plants characteristics

• They are eukaryotes
• The are autotrophs
• And they have cell walls

Plants adaptions

• Retaining water
• Transporting materials
• Support
• Reproduction

NON-VASCULAR PLANTS

MOSSES

LIVEWORTS

• There is more than 8,000 species of liverworts.
• They are a thick crust found on moist rocks.
• They are beside streams and rivers.

HORNWORTS

• There are fewer than 100 species of hornworts
• They usually live in moist soils

SEEDLESS-VASCULAR PLANTS

• This group includes ferns, horsetails, and club mosses
• They do not produce seeds, instead they have vascular tissue
• Instead of seeds, these plants reproduce by releasing spores

FERNS

• There are more than 12,000 species of ferns alive today.
• The stems of most ferns are underground.
• The roots anchor the fern to the ground.

HORSETAILS

• There are very few species of horsetails on Earth today.
• Small leaves grow flat against the stem just above each joint.
• The stems contain silica, a gritty substance also found in sand.

CLUB MOSSES

• Club mosses have true stems, roots, and leaves.

SEED PLANTS

• They have vascular tissue.
• They use pollen and seed to reproduce.

VASCULAR TISSUE: PHOLEM/XYLEM

• Phloem is the vascular tissue through which food moves.
• Water and minerals, on the other hand travel through xylem.

POLLEN AND SEEDS

• Pollen is tiny structures that contain the cells sperm.
• Seed is a structure that contains a young plant.

SEED STRUCTURE

• It contains 3 main parts.
• First one is embryo.
• The second one is stored food.
• The third one is seed coat.

SEED DISPERSAL

GERMINTION

ROOTS

STEMS

• Carries substances between the plants roots and leaves.
• It also provides supports for plant and holds up the leaves.
• They are also exposed to the sun.

LEAVES

GYMNOSPERMS

• Is a seed plant that produces naked seeds.
• They also have a deep root growing system.

EXAMPLES OF GYMNOSPERMS

• Here are four types of gymnosperms
• Cycads
• Confeirs
• Ginkgoes
• Gnetophytes

ANGIOSPERMS

• They produce flowers.
• Also the seeds are enclosed in fruits.

EXAMPLES OF ANGIOSPERMS

• Here are four examples of angiosperms
• Sepals and petals
• Stamens
• Pistils
• Pollinators

MONOCOTS VS. DICOTS

• Grasses, including corn, wheat, and rice, and plants such as lilies and tulips are monocot.
• Dicots include plants such as roses and violets, as well as dandelions.

PLANT TROPISMS LIGHT,TOUCH,GRAVITY

• bladderwort, show a response to touch called thigmotropism.
• All plants exhibit a response to light called phototsythesis
• Roots show posi tive gravitropism they grow downward.

THAT IS ALL FOR NOW