Lab 7 Practice Quiz

What experimental condition was used to disrupt the boundary layer beneath leaves?

• Light

• Wind

• Mist

• Room

Which environmental condition(s) may result in an increase in transpiration?

• High light

• High humidity

• Low light

• High wind

What is the term to describe the water status of a plant?

(a)  

What is transpiration?

• The same thing as evaporation

• When plants lose water

• The loss of water vapor through leaves

• The loss of water vapor through stomata

Which is/are a component of the RWC formula?

• Dry weight

• Current weight

• Fully hydrated weight

• Soaked weight

Consider the potometer experiment that your lab section conducted last week. In theory, which environmental condition(s) would you expect to have resulted in the greatest increase in transpiration?

• Light

• Light + Wind

• Light + Mist

• Wind

(a)   is responsible for the outgrowth of axillary buds when apical dominance is lost.

Which pictured stem was more likely subjected to high light/wind treatment conditions?

• Neither stem

• The stem on the left

• The stem on the right

• How am I supposed to know that?

The (a)   is a layer of still, humid air on the underside of a leaf.

Which environmental factor(s) influence the regulation of stomata opening and closing?

• Water available to the plant

• Humidity

• Temperature of air around a leaf

• Size of the plant

• How much chlorophyll is in the plant.