• Huxman home

• interests

• projects

• people

• CV

• selected publications

• courses taught

ECOL 182 (Spring) Intoductory Biology - Sample Fill-in-the-Blank Questions for Exam Two

Here are some questions - they highlight how I write and how you should look at the material I presented in lecture. I will post some information about content in a separate page - the answer to the question is in parentheses following the question.

1. The group of bacteria (Halobacteria) from extreme saline environments utilize a different photosyntehtic apparatus that consists of a ___________ protein rather than the more typical photosystems.

(retinal)

2. The existance of such an apparatus in the Halobacteria (from above) suggest that photosynthesis evolved at least _____________ times.

(two)

3. The universal design of the photosynthetic structure includes

___________, and ____________

(antenna complex and reaction center)

4. Plasmodesmata are:

(open channels in cell walls that connect two cells. they are lined with plasma membrane)

5. Which type of cells are responsible for the development of primary growth and secondary growth?

(apical meristems, lateral meristems)

6. What are the elements that allow for water movement from the soil into the plant?

(transpiration, tension, cohesion)

 

 

7. Refer to the preceding figure. Why is leaf water potential more negative than root or soil water potential?

 

8. Cavitation is:

(the breakage of the continuous column of water in the vascular tissue)