1. They’re what's for dinner!
Plants
They’re what's for dinner!

2. Major Plant Parts Vegetative Parts: Reproductive Parts: Roots Stems
Leaves
Reproductive Parts:
Flowers

3. Non – Vascular Plants

4. Non – Vascular Plants Called Bryophytes First plants to evolve.
Three types:
liverworts, hornworts, and mosses
First plants to evolve.
No stems, leaves, water, and vascular tissues – absorb food and water.
They are:
Low Growing
Need water
Reproduce with spores

5. Vascular Plants
Xylem – Carry water and minerals up and act as supports.
Phloem - Carry food up and down the plant.

6. Stems Internal Structures:
Xylem: Tissue responsible for carrying water and nutrients from roots to leaves; located near center of stem
Xylem Up!!
Phloem: Tissue responsible for carrying food produced in leaf to rest of plant; usually located near outside of stem
Phloem Down!!

7. Xylem & Phloem

8. Vascular bundles Inside the stems are vascular bundles.
The vascular bundles carry water and nutrients through the xylem & phloem
Which human organ system are vascular bundles equivalent to?
Blood vessels in the circulatory system

9. Stems Stems support the plant and give it structure.
So what human system are stems equivalent to?
Skeletal

10. Leaves Produce food for the plants
Functions
Produce food for the plants
Efficiently collect light and use that light to make energy

11. Leaf Anatomy

12. Photosynthesis
Photosynthesis: A chemical process by which a plant turns light energy from the sun into chemical energy in the form of sugar.
Water + Carbon dioxide Sugar and Oxygen

13. Respiration
Cellular Respiration: The opposite of photosynthesis. This process breaks sugars down so plants can use them.
Similar to digestion in animals.
Takes place in a place in the cell called the mitochondria.

14. Respiration
How are photosynthesis and respiration important to us as human beings?

15. Transpiration Loss of water from a plant Lost mostly by the leaves
Water goes out of leaves through stomata
Too much water loss damages plants
Every plant is different

16. What stomata wit you?
On the bottom of plant leaves you can find pores surrounded by what look like a pair of lips.
These pores are called stomata and are where gas exchange takes place in plants (but remember plants are taking in CO2 and releasing oxygen).
Which human organ system are the stomata equivalent to?
Respiratory system

17. Roots Roots absorb water and nutrients.
Which human organ system would roots be equivalent to?
Digestive

19. Flowers!
Flowers are used by plants in order to make baby plants (There is no baby plant stork).
Which human organ system are flowers equivalent to?
Reproductive system

20. Plant Classification
Non Flowering
Ferns
Cone-Producers (Conifers)

21. Plant Classification
Flowering
Monocots
Dicots

22. Monocots Leaves have parallel Veins Fibrous Roots Flower parts in 3’s
Seed has one part (cotyledon)
Vascular bundles are scattered

23. Dicots Leaves have branched Veins Tap Roots Flower parts in 4’s & 5’s
Seed has two parts (cotyledons)
Vascular bundles are in a ring

24. Plant Reproduction Flowers have ovaries just like women do!!!
Pistil
The anther is the male part of the flower.
Stamen

25. Sexual Reproduction in Plants:
Two parents (meiosis)
The stamen releases pollen.
Pollen is carried by wind, gravity, animals, or insects to the stigma of another flower. (This is when pollination occurs)
Pollen moves from stigma down pollen tube in the style depositing sperm in ovary

26. Sexual Reproduction in Plants:
When sperm has been deposited in ovary, fertilization has occurred.
When eggs have been fertilized, ovary and surrounding tissue start to enlarge to become fruit and fertilized eggs become seeds.

28. Plant Life Cycle
Annual
Biennial
Perennial

29. Annuals Completes a life cycle in 1 year
Grow, mature, bloom, produce seeds & die
Summer Annuals – complete cycle during spring & summer
Winter Annuals – complete cycle during fall & winter

30. Annual Example: Zinnia

31. Biennial 2 years to complete its life cycle
1st year – vegetative structure & food storage
Over winter it goes dormant
2nd year produces flowers, fruit & seed

32. Biennial Example: Carrots

33. Perennial Live 2 or more years Herbaceous perennials Woody Perennials
soft, non-woody stems
die back to the ground each winter
New stems grow from the plant's crown each spring.
Woody Perennials
Trees & shrubs
Withstand cold winter temperatures

34. Perennial Example: Trees & Shrubs