Palisade cell

Leaf morphology and anatomy are crucial for understanding medicinal plants for the treatment of a range of microbial infections. The most commonly used part of the plant is the leaf especially in the study of antimicrobial activity. However our understanding of botanical identification in relation to pharmaceutical use is not fully understood. Interestingly, palisade parenchyma is one of the most important criteria in plant biology for understanding leaf organization. It is the tissue specialized in the photosynthesis is the mesophyll. The mesophylls are often described as the palisade (pole shaped).

Cross-section of a leaf

What are palisade cells?

Palisade cells are cells that are found in the mesophyll layer of the dicotyledonous plants especially within the leaves. The mesophyll layer is called the middle layer as it is present between the upper and lower layers of epidermis. Palisade cells have chloroplasts, the organelles present in plant cells capable of converting light into energy in the form of Adenosine-5'-triphosphate (ATP).

Structurally, palisade cells are cylindrical and elongated in shape in order for light to be captured and absorbed by chloroplasts. That is the reason why palisade cells are placed at upper layer of the leaf to allow maximum conversion of light into energy. In addition, this is the reason why the upper layers of the leaf are greener than the lower regions. Additionally, these cells contain more carbohydrates than compared to other cells that are then utilized by other cells for metabolic activities.

Bifacial leaf cross section of a lead

Sections of a leaf

Cuticle: the thin superficial skin of a leaf
Upper epidermis: the outer layer of the leaf
Spongy mesophyll: the ball-shaped cells responsible for forming the central layer of the leaf
Guard cell: part of the stoma responsible for controlling gas exchange and loss of water
Lower epidermis: lower layer of the leaf
Stoma: the pore present in the leaf and stem epidermis for gas exchange
Phloem: conductive tissue that carries organic nutrients
Xylem: responsible for the conduct of water and nutrients

Vein: transports food and water throughout the leaf in addition to providing support


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Comments 28 comments

girdie 7 years ago

very thorough and in depth. could you post the origin of the name and history and stuff next time? overall good

secreT..!! :P 7 years ago


secreT..!! :P 7 years ago


ac 7 years ago

very good

k,dhscku 6 years ago

very good i think

aw 6 years ago

r watev is it onna bout

me 98 6 years ago

wats with the video!!!

me!!!!!! 6 years ago

im bored

Lord Denelder 6 years ago

Lolz the Video is retarded hehehehehehehehe the guy needs a life

Booyah2000 6 years ago

I'm so bored of this I need the function!

the nevster 5 years ago

Hi. Can you possibly tell me how big a palisade leaf cell is? Thx.

me 5 years ago

what is its job and very goodx

NO 5 years ago

completely useless and rubbish.

Yo..>> 5 years ago

good stuff....really long though..

Meeee 5 years ago


caitlin 5 years ago

i love science :)

meeee 5 years ago

could some one help me find a website tht can describe for me the structure of a palisade cell

omg 5 years ago

can u help me find a website for palisade cell

zulu 5 years ago


Someone 4 years ago

Palisade Cell? Any good websites?

Someone 4 years ago

Cool song!!!

mr awesome 4 years ago

not anouf info

SeCRt AgeNT 4 years ago

vrrryyy...,, gud!! it was alotttt..,,,, hlpful!!!

Homework hater 4 years ago

I cant be bothered to read but i have to read it! Homework sucks!

colmeawsm 4 years ago

no were need what i needed

retard 4 years ago

im am capable of saying this is poo poo face with unicorns licking it and its done by a average field mouse

Ggygyu 4 years ago

Great but the video does not go

me ._. 4 years ago

hi. okay. what is this. i don't.

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