Friday, May 14, 2010

All cells of the leaf have chlorophyll except...?

1. All cells of the leaf have chlorophyll except...?


A. palisade layer


B. spongy layer


C. Guard cells


D. Epidermal cells





2. Which of the folowign plants could be expected to have all of its stomates on the upper surface?


A. cactus


B. oak


C. rose


D. water lily





3. When leaves are viewed under a microscope, generally there is a gap above eac pair of guard cels. What purpose does this chamber serve?


A. helps the guard cells to open and close


B. regulates the size of the stomates


C. prevents water from evaporating


E. provides a place for gas molecules to diffuse into or out of mesophyll cells





4. Which of the following would have little if any effect on guard cells opeining or closing the pores known as stomates?


A. oxygen content in the cell


B. water content in the cells


C. the accumulation of potassium ions


D. wilting

All cells of the leaf have chlorophyll except...?
dO YOUR OWN HOMEWORK, Lazy twonk!





If you don't understand something ask your teacher. Don't take advantage of people on here.
Reply:1.D
Reply:1. I think all of the choices can have though generally stomates have no chlorophyll at all but in my college experiment i saw a stomata with chlorophyll.


2. Water lily since it can take in and out O2 and CO2 underwater.


3. That regulates the size of the stomates via turgor pressure.


4. All have great effects.


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