Download Previous questions for exam 3

Name: _________________________________________
FES 100 Exam 3 page 1
FES 100 - Introduction to Forest Biology
Practice for Exam 3
For short answer questions, be brief; full sentences are not necessary. Point value for each question is in
parentheses. If a question is not clear to you, please ask for clarification.
1.
(pt=1)
What do all land plants share in common with green algae but not with other
photosynthetic organisms? (2 charachteristics)
______________________________________________________________________________
______________________________________________________________________________
2.
(pt=4)
Make a sketch of a moss plant and label the sprorophyte and gametophyte:
3.
(pt=3)
Why did the apical meristem evolve? (2 reasons)
a)______________________________________________________________________________
______________________________________________________________________________
b)______________________________________________________________________________
______________________________________________________________________________
Page 2 FES 100 Exam 3
4.
(pt=10) Diagram the alternation of generations for a fern.
5.
(pt=3)
What is a major adaptation that conifers have that ferns don't have?
______________________________________________________________________________
Why did this change make conifers better adapted? (1 major reason)
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
6.
(pt=3)
What is a major adaptation that flowering plans have that conifers don't have?
______________________________________________________________________________
Why did this change make flowering plants better adapted? (1 major reason)
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
FES 100 Exam 3: Page 3
7.
(pt=5)
Make a sketch of a cross section of a 2 year old tree stem with all of the necessary tissues.
Label at least 4 of the tissues.
8.
(pt=4)
What role does the root cortex and endodermis have in plant nutrition?
Cortex:________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Endodermis:____________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
9.
(pt=3)
Give an example of a macronutrient: _____________
How is this used in the plant?______________________________________________________
______________________________________________________________________________
______________________________________________________________________________
10. (pt=3)
Give an example of a second macronutrient: _____________
How is this used in the plant?______________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Page 4 FES 100 Exam 3
11. (pt=2)
When water leaves the xylem and enters the mesophyll, what are two different energy
forces that can pull it out of the mesophyll cell?
a)______________________________________________________________________________
b)______________________________________________________________________________
12. (pt=4)
What are two strong advantages that xylem tissue gives trees in their ability to utilize
energy?
a)______________________________________________________________________________
______________________________________________________________________________
b)______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
13. (pt=1)
Which hormone will help initiate flowering? ______________________________
14. (pt=4)
Draw a sketches of male and female gametophytes in a flowering plant
15. (pt=4)
What survival benefit does photoperiodism give flowering plants in Maine? (2 reasons)
a)______________________________________________________________________________
______________________________________________________________________________
b)______________________________________________________________________________
______________________________________________________________________________
FES 100 Exam 3: Page 5
16. (pt=12)
Diagram and explain the processes involved in the germination of a seed from when it is
dormant to when the first tissues begin to photosynthesize. Be sure to indicate key structures and plant
hormones.
17. (pt=2)
What is one major difference between nitrogen fixing nodules on plants and
ectomycorrhizae?
______________________________________________________________________________
______________________________________________________________________________
Page 6 FES 100 Exam 3
18. (pt=2)
What is one major similarity between nitrogen fixing nodules on plants and
ectomycorrhizae?
______________________________________________________________________________
______________________________________________________________________________
19. (pt=3)
What is one characteristic of a good soil for plant growth (can't use "having enough
nutrients"):_____________________________________________________________________
Why is this true?_________________________________________________________________
______________________________________________________________________________
20.
(pt=3)
What is a second characteristic of a good soil for plant growth (can't use "having enough
nutrients"):_____________________________________________________________________
Why is this true?_________________________________________________________________
______________________________________________________________________________
21. (pt=1)
Which process begins the haploid generation? ___________________________
22. (pt=1)
Which process begins the diploid generation? ____________________________
23. (pt=2)
How are the processes in the previous two questions similar in helping species evolve?
______________________________________________________________________________
______________________________________________________________________________
FES 100 Exam 3: Page 7
24. (pt=3)
Explain how levels of phytochrome help a plant quantify the length of night time:
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
25. (pt=15)
Use sketches and text to describe how water potential increases throughout the tree
resulting in the closing of stomata. Be sure to include the energy forces involved and the plant hormone
involved. (extra credit possible depending on detail)
26. (pt=2)
How do fungi get their energy that makes them different from animals?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
27. (pt=1)
How can fungi spread rapidly from one place to another?
______________________________________________________________________________
______________________________________________________________________________
28. (pt=4)
How do basidomycota differ from ascomycota? (explain or sketch)
Page 8 FES 100 Exam 3
29. (pt=3)
What is an example of a:
Ascomycota: __________________________________________________________________________
Basidiomycota: ________________________________________________________________________
Imperfect fungus ______________________________________________________________________