Presentation is loading. Please wait.

Presentation is loading. Please wait.

Leaf Structure Mr. Hefti – Pulaski Biology. Identification: 1.Cuticle 2.Upper epidermis 3.Mesophyll Transport tissues Xylem Phloem Palisade layer Spongy.

Similar presentations


Presentation on theme: "Leaf Structure Mr. Hefti – Pulaski Biology. Identification: 1.Cuticle 2.Upper epidermis 3.Mesophyll Transport tissues Xylem Phloem Palisade layer Spongy."— Presentation transcript:

1 Leaf Structure Mr. Hefti – Pulaski Biology

2 Identification: 1.Cuticle 2.Upper epidermis 3.Mesophyll Transport tissues Xylem Phloem Palisade layer Spongy layer Air spaces 4. Lower epidermis Guard cell Stoma ~ Leaf Cross Section ~

3 Cuticle Waxy outer coating that protects leaf

4 Upper epidermis Top layer of cells

5 Mesophyll Middle layer – packed with chloroplasts –Transport tissues / veins Xylem: transports water Phloem: transports food –Palisade layer: tightly packed columnar cells –Spongy layer: loosely packed with many air spaces Air spaces: openings for moving gases

6 Lower epidermis Guard cell: opens and closes stoma Stoma: pores in leaves that connect to air spaces

7 Now take a look at some lilac leaf specimens!


Download ppt "Leaf Structure Mr. Hefti – Pulaski Biology. Identification: 1.Cuticle 2.Upper epidermis 3.Mesophyll Transport tissues Xylem Phloem Palisade layer Spongy."

Similar presentations


Ads by Google