plant parts & their jobs
DESCRIPTION
Plant Parts & Their Jobs. Plant Jobs. Write these down… Primary source of food for people and animals Produce oxygen Absorb carbon dioxide Continued…. Plant Jobs. Slow wind speed Provide homes for wildlife Prevent erosion Beautify surroundings - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/1.jpg)
Plant Parts & Their Jobs
![Page 2: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/2.jpg)
Plant JobsWrite these down…
Primary source of food for people and animalsProduce oxygen
Absorb carbon dioxide
Continued…
![Page 3: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/3.jpg)
Plant JobsSlow wind speed Provide homes for wildlifePrevent erosionBeautify surroundingsFurnish building materials and
fuel
![Page 4: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/4.jpg)
Parts of a plantFour basic parts
LEAVESSTEMSROOTSFLOWERS
Draw this on your notes
![Page 5: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/5.jpg)
LEAVES
![Page 6: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/6.jpg)
The greenest part of the plant
Act as solar collectors
Large leaves= areas of little sunlight
Tiny leaves = bright sunlight
Needles = no water loss
LEAVES
![Page 7: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/7.jpg)
LEAVES - structure Epidermis - top and bottom tough layer
Pallisade Layer - most cells with chloroplasts are found here
Spongy Layer - gas exchange through stomata
![Page 8: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/8.jpg)
LEAVES - 2 functions Make Food
(sugar) in the chloroplasts
Gas Exchange
take in carbon dioxide andrelease oxygen and watervapor
Stomata on the bottom of the leaves have guard cells that open and close as they fill up with water.
![Page 9: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/9.jpg)
LEAVES - photosynthesis
Plants make sugar using CO2 (from air)
and H2O (from roots)as ingredients.
![Page 10: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/10.jpg)
STEMS
![Page 11: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/11.jpg)
STEMS - two main functions
Liquid transport
xylem cells carry water
& minerals up phloem cells carry
food down Support
![Page 12: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/12.jpg)
STEMS – example Dicot plants such as a bean (xylem & phloem in a ring under the bark)
Xylem PhloemCambium
![Page 13: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/13.jpg)
STEMS – example Monocot plants such as a corn stalk (vascular bundles scattered throughout the setm)
Xylem tube
Phloem Cells
![Page 14: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/14.jpg)
What Good Are Stems to humans?
FOOD-rhubarb, celery, white potato
WOOD – building and fuel
PAPER
![Page 15: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/15.jpg)
Types of Modified Stems Bulbs: (onion) Tubers: (potato) Stolons: above ground runner (strawberry) Rhizomes: below ground runners (field bindweed or creeping jenny)
![Page 16: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/16.jpg)
ROOTS
![Page 17: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/17.jpg)
ROOTS - functions Anchor plant Suck up water and
minerals Store Sugar (radish,
carrot, beets) Reproduction (eyes on potatoes)
![Page 18: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/18.jpg)
ROOTS - structure root cap-protects tender cell division
area as the root pushes through soil
![Page 19: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/19.jpg)
ROOTS – root hairs
Water and minerals move into root by osmosis / diffusion
![Page 20: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/20.jpg)
What is Diffusion? Diffusion is when
particles move from areas of high concentration to low concentration. (Doesn’t have to be water)
Examples: Lighting a match, spraying perfume or cologne
![Page 21: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/21.jpg)
What is Osmosis? Osmosis is a special
type of diffusion that involves water.
Water moves from areas of high concentration to areas of low concentration.
Diffusion is when particles move from areas of high concentration to low concentration.
![Page 22: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/22.jpg)
FLOWERS, FRUITS, SEEDS
![Page 23: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/23.jpg)
FLOWERS, FRUITS, SEEDS Main jobs involve
reproduction
Attract pollinators Disperse pollen Fertilization Disperse seeds
![Page 24: Plant Parts & Their Jobs](https://reader035.vdocuments.site/reader035/viewer/2022062305/56816648550346895dd9c15f/html5/thumbnails/24.jpg)
FLOWERS, FRUITS, SEEDS POLLEN normally carried by
insects or wind
FRUITS & SEEDS normally carried by wind, animals, water or shot away from parent plants (projectiles)