BOTANY 105 Lecture Examination 2, Spring 1998 Name______________________

Check or Circle your laboratory instructor and your laboratory day and time.

 

D. Largent

Cheri Sanville

Birgit Semsrott

Brian Crain

Jennifer Chambers

Tu, Th 11-2

Tu, Th 2-5

W, F 8-11

W, F 11-2

W, F 2-5

 

I. Vocabulary: in the space provided, place the word or phrase that best fits the definition.

 

_________________________ a slimy polysaccharide that surrounds the cell wall of certain red algae (Gelidium robustum).

_________________________ for algae, an extensive and conspicuous mass of algae resulting from rapid population growth.

_________________________ a portion of a macroalga that firmly attaches the thallus (body) to the substrate.

_________________________ the area occurring between high and low tide levels, that is exposed to low tide.

_________________________ Part of sporophyte embedded in old archegonia; diploid (2N).

_________________________ Root like structures which anchor plant but absorbs only small amounts of water and minerals; hair-like extensions of epidermal cells.

_________________________ a specialized container in which megaspores are produced.

_________________________ Underground stem that grows near the soil surface. This stores food for renewing growth of the shoot after periods of stress.

_________________________ Irregular growth pattern common in fern fronds in which cells on the lower surface of a developing leaf grow faster than those on the upper surface; a "fiddle head" shape results.

_________________________ Clusters of sporangia; found especilly among the algae and lower vascular plants.

  1. Vocabulary: In the space provided, define the terms
    2.

    Androecium:

    		  

    Antipodal cell

    		 

    Double fertilization

    		 

    Endocarp

    		  

    Head

    		  

    Meiocytes

    		  

    Mycorrhizae

    		 

    Oospore

    		  

    Ovuliferous scale

    		 

    Zygomorphic

    		 
  3. Short-answer questions: In the space provided, answer the questions in short, terse sentences.

 

  1. Why do leaves of Coast Redwoods not fall singly?

    2.  

     

  2. Where does the pollen droplet accumulate and what is it's primary function?

    3.  

     

  3. What are the differences in the photosynthetic pigments between the red and green algae?

    4.  

     

  4. How does chunky, blue cheese differ from soft, brie cheese as related to the ripening process aided by fungi?

    5.  

     

  5. What structures aid in spore dispersal in the division Bryophyta? What structures aid in spore dispersal in ferns?

    6.  

     

     

  6. What are the differences in the gametophyte between a pleurocarpus moss and a leafy liverwort?

    7.  

     

     

  7. What are the differences between the sporophyte of a hornwort and the sporophyte of a liverwort?

    8.  

     

     

  8. In ferns, identify the structure that provides protection for sori. From what is it produced? What is its ploidy number?

    9.  

     

  9. Name the fleshy white part of the apple which we eat

    10.  

  10. What is the outer part of the peanut called?

    11.  

  11. The package states, "Sunflower Seeds." This is incorrect. What are they?

    12.  

  12. What are the four whorls of a flower?

    13.  

     

     

     

  13. A flower that is missing any floral whorl is known as an _________ flower.

    14.  

  14. How does a peduncle differ from a pedicel?

    15.  

  15. List at least six differences between monocots and dicots?
  1. In the following chart, place a check in the correct spaces. All= all organisms in this group or division has the character; some= only some organisms in the group or Division has the feature.

Fungi

Algae

Bryophyta

Lycopodophyta

Pteridophyta

Pinophyta

Anthophyta

Unicellular gametangia

Zoospores (some)

Motile sperm (all)

True starch (all)

Chlorophyll a (all)

Heterotrophic (all)

Gametic meiosis (some)

Sporic meiosis (all)

Embryophytes (all)

Tracheids (all)

Vessel elements (all)

Microphylls (all)

Megaphylls (all)

True roots (all)

Exosporic gametophyte (all)

Heterospory (all)

Ovules (all)

__________________________________________________________________________________________________________________

 

IV: In the Diagram of the pine life cycle: provide labels for the numbers that are circled and are indicated by a star.

 

Female portion of life cycle (Diagrams A, B, C, J, K, and M)

 

A 1: _______________________

B 8: _______________________

J 1: _______________________

K1: _______________________

K,L,M6: _______________________

L,M2: _______________________

 

Male portion of life cycle (Diagrams D, E, F, G, H)

 

D1: _______________________

D,E2: _______________________

F,G3: _______________________ (be careful, there is only one nucleus; to answer this correctly ignore the wings)

I2: _______________________

I3: _______________________