TISSUE

is

Cell of the same type or different types group together to carry special

function.

aerenchyma  

PLANT TISSUES

dermal tissue, ground tissue, vascular tissue,

meristematic tissue

Vascular tissue

http://www.google.com.my/imgres?q=cross+section+of+stem&hl=en&biw=754&bih=331&gbv=2&tbm=isch&tbnid=lGLFX__DWA738M:&imgrefurl=http://sci.waikato.ac.nz/farm/content/plantstructure.html&docid=-jcLYUTHhrUyJM&imgurl=http://sci.waikato.ac.nz/farm/images/dicot%20stem_labelled_web.png&w=400&h=239&ei=tS4zT5-nJY2PiAfxm7SCAg&zoom=1

http://www.google.com.my/imgres?q=xylem+and+phloem&um=1&hl=en&sa=X&gbv=2&biw=1049&bih=475&tbm=isch&tbnid=5yxpLwwGGxKYFM:&imgrefurl=http://withfriendship.com/user/mithunss/phloem.php&docid=FygXE2iEdYscNM&imgurl=http://withfriendship.com/images/g/31145/Phloem-picture.gif&w=393&h=357&ei=_boiT8_EJ4HprAeukMiZCA&zoom=1

Meristematic tissue

Character and function

• Small cell• Big nucleous• Dense cytoplasm

Cell division- form new xylem and floem and others tissue as (for) plant grows up taller and higher.

type

Lateral meristem

• Vascular cambium• Cork cambium

Apical meristem

• Shoot tip• Root tip

Dermal tissue

Epidermis of a leaf and stem

function

• Protection ( wax covered.)

Flat cell and large vacuole

http://www.google.com.my/imgres?q=epidermal+cells&hl=en&rlz=1T4ADSA_enMY429MY431&biw=983&bih=350&tbm=isch&tbnid=oZPZMtNpr3kFsM:&imgrefurl=http://www.sciencephoto.com/media/30125/enlarge&docid=j8cavpGwv0S6jM&imgurl=http://www.sciencephoto.com/image/30125/large/B7450272-LM_of_epidermis_cells_of_Tradescantia-SPL.jpg&w=530&h=362&ei=TioVT-q3JNDirAeNkumZAg&zoom=1

http://www.google.com.my/imgres?q=leaf+structure&um=1&hl=en&gbv=2&biw=1049&bih=475&tbm=isch&tbnid=povcqlDfzejmFM:&imgrefurl=http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookps.html&docid=nKHO1E-NiriWQM&imgurl=http://www.emc.maricopa.edu/faculty/farabee/biobk/C3leaf.gif&w=475&h=368&ei=rLEiT7_sOcKzrAfd2tzKCA&zoom=1

Ground tissues

ParenchymaCollenchymasclerenchyma

function

parenchyma• Store glucose and starch• Turgidity of this tissue

support plant( young leaf, herbaceous plant and aquatic plant)

• Large vacuole• Thin cell wall• Air spaces between cells

collenchyma• Support young plant and

herbaceous plant

• Cell wall thickened with cellulose(pectin) esp. at angle (UNEVENLY THICKENED)

• No air spaecs

Supportive cellStem, midribs of leaves

sclerenchyma

Characteristic and function• Cell wall is thickened with lignin• Thickened evenly• Absence of cytoplasm• Dead tissue• Fibres and sclerid

• Supportice cell/Support plant tissue (terresterial) and organ

(seed coat, fruit, vascular bundle, midribs of leaf)

Support petiole, young stem, herbaceous plant.

organ

A group of tissue work together to carry specific function

State the functions of the organs.

State all the tissues made up stem and a leaf.

State the function of the tissue.

ORGAN SYSTEMS

An organ system is a group of different organs operating together carrying out a definite task. Plants have shoot system and root system.

system

Shoot system• organs

Root system• organs