Finding Stomata

Mr. Andersen demonstrates how to find and observe stomata in dicot and monocot leaves using a microscope. He explains the role of stomata and guard cells in regulating water and gas exchange. The process involves using clear fingernail polish to create an impression of the leaf's epidermal cells, which is then observed under a microscope. The video covers the materials needed, preparation steps, and differences in stomata arrangement between dicots and monocots.

What is the primary function of guard cells surrounding the stomata?

• To store nutrients

• To produce chlorophyll

• To regulate gas exchange

• To absorb sunlight

Which material is used to create an impression of the leaf surface?

• Colored fingernail polish

• Clear fingernail polish

• Paint

• Glue

What is the purpose of letting the fingernail polish dry on the leaf?

• To make the leaf shiny

• To adhere to the epidermis for easy removal

• To change the leaf color

• To protect the leaf from damage

How are stomata arranged in monocot leaves compared to dicot leaves?

• Clustered in both

• Lined up in dicots, random in monocots

• Lined up in monocots, random in dicots

• Randomly in both

What is observed under the microscope after creating an impression of the leaf?

• Veins of the leaf

• Root cells

• Epidermal cells and stomata

• Chloroplasts