Study Guides (248,609)
United States (123,460)
BIOL 1002 (57)
All (40)
Final

BioExam#3 Study Guide W/pics (got 96%)

19 Pages
62 Views

Department
Biological Sciences
Course Code
BIOL 1002
Professor
All

This preview shows pages 1,2,3,4. Sign up to view the full 19 pages of the document.
Description
Biology Exam 3Chapter 43Plant Anatomy and Nutrient TransportThe basic design of land plants has two partsRoot SystemShoot SystemFor the Angiosperms the two variation of this basic design are seen in the two Classes Monocots versus Dicots MONOCOTSDICOTSFlower structurearranged in group of threearranged in groups of four or fiveLeavesnarrow with parallel veinsWider with branching netlike veinsVascular tissueScattereddistributed Ring of vascular bundlesvascular bundlesRootsMany smallershallow rootsOne main taprootSeedOne cotyledonTwo cotyledonsPlant growth and developmentPlants grow only in special regionsThe cells in these regions are meristem cellsMeristem cells Undifferentiated totipotent total potential embryonic cells This means the cells have not become specialized They can be anything like radialindeterminate cleavage in animalsOnce plant cells mature they become differentiated cells and usually dont divide again Plant growth is mainly twodimensional up and down and as a result plants grow longer not widerThis is the result of the location of the meristem cellsMeristem cells are found at both ends of the plantThese cells at the root and shoot tips are the apical meristems Apexpinnacleextreme ends The growth that occurs at the apical meristem is called primary growthPrimary growth continues throughout the life of a plant and is responsible for the increase in height of a plant The other location of meristem cells is the lateral meristemLateral meristem Found in ring like structures one called the vascular cambium in dicots and conifers The ring of cells separates the xylem and phloem and is responsible for secondary growth Secondary growth occurs later in the life of a plant and is responsible for the thickening of branches and trunks Plants have three main tissue systemsDermal Tissue SystemFrom the protodermOutside covering Ground Tissue SystemFrom the ground meristemthe inbetween stuffSimple tissue system Doesnt change over the age of the plant Vascular Tissue SystemFrom the procambiumThe pipes There are two types of complex tissue systemsDermal tissue systemVascular tissue systemTwo tissue types make up the dermal tissue systemEpidermal tissuePeriderm The epidermal tissue forms the epidermis skin that covers the outside of the plant Made up of thinwalled cell with a waxy cuticleSome epidermal cells produce fine hairlike structures called root hairs or leaf hairsRoot hairFuzzy stuff coming off of the roots Puts more of the plants root surface in contact with the soil for uptake Leaf hairsCreates a zone above where the leaf is so theres not as much evaporation to keep more water inside the leaf Also keeps predators from getting to the surface of the leaf
More Less
Unlock Document

Only pages 1,2,3,4 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit