Leaf Structure and Function Photosynthesis

The Leaf

Today we will identify the structures that make up a leaf and explain how they are used to conduct the process of photosynthesis

Dropdown

The xylem transports​

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from the roots to the shoots.

The phloem transports​

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from the leaf to other tissues in the plants.

Hotspot

Select all plant organs that belong to the shoot system.

Hotspot

Where would you expect the Xylem to begin?

Hotspot

Where does photosynthesis take place?

Fill in the Blanks

1. Waxy Cuticle helps prevent water loss.

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​Leaf Structure

Multiple Choice

Most leaves have a waxy coating on them to help prevent water loss. Which biomolecule makes up this protective wax layer?

• Carbohydrates

• Lipids

• Proteins

• Nucleis Acids

Think of the wax cuticle as if it were Chapstick!

It is used to lock the moisture inside and BOTH are made of LIPIDS!

​Return of Lipids!

Multiple Choice

Which modern day product do chloroplast act like?

• Battery Charger

• Electric Cords

• Solar Panels

• Wind Turbines

2. Palisade Mesophyll cells have many chloroplast - found in upper part of the leaf

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​Leaf Structure

Chloroplast is the membrane-bound organelle that conducts the process of photosynthesis.

Chlorophyll is a green pigment - this is why plant cells are green!

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Chloroplast

3. Vascular Bundle
Xylem & Phloem

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​Leaf Structure

Fill in the Blanks

4. Stoma & Guard Cell
Opens and Closes for gas exchange

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​Leaf Structure

Guard Cells close the stoma at night to prevent water vapor from escaping!

Found on the underside of leaf!

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Stoma & Guard Cells

Open Ended

What structure of the leaf conducts the process of gas exchange?