Understanding Stomata and Experimental Methods

What is the primary function of stomata in plants?

• To absorb nutrients from the soil

• To support the plant structure

• To facilitate gaseous exchange

• To store water

What happens to guard cells when they become turgid?

• They open the stoma

• They close the stoma

• They fall off the leaf

• They change color

Which factor does NOT influence stomatal opening and closing?

• Temperature

• Leaf color

• Wind

• pH levels

What is the first step in the leaf peel method for studying stomata?

• Observing the leaf under a microscope

• Staining the leaf with safranin

• Breaking the leaf to expose the epidermis

• Applying nail varnish to the leaf

In the varnish method, what is used to create a peel of the leaf surface?

• A pair of tweezers

• Super glue or nail varnish

• A compound light microscope

• A staining solution