Study Questions Exam II BOT 311 Spring 2000
This may be a Partial List - I will finish it ASAP
What important reproductive cells are produced by the Sporophyte?
What is the chromosome number of the Sporophyte (N or 2N)?
What is a Sporangium? What happens in a Sporangium and what is the final product of Sporogenesis?
What is the chromosome number of Spores (N or 2N)?
What general type of entity do the Spores produce?
What are Gametangia?
What are two Gametangia that are found with most land plants?
What special Gametangia are found in the Coniferophyta & Anthophyta?
What is Homospory? Give one example of a plant group that is Homosporous.
What is Heterospory? Give one plant group that is Heterosporous.
Most land plants produce Motile Sperm. What are the disadvantages associated with this?
How do Conifers & Angiosperms solve many of these problems?
The archegonia secrete Chemotactic agents. What is the function of these chemicals.
What is the Pollination Drop and how does it aid sexual reproduction?
What is the Axial Row of an Archegonium and what cells are found there?
Draw and label the key parts of an Archegonium & Antheridium.
Explain the following terms (Exosporic, Endosporic, Exoscopic, Endoscopic)
Which two are beneficial in terms of sexual reproduction? Why is this so?
Explain Epibasal vs Hypobasal.
What are the three parts of a Sporophyte in the Hepatophyta (Liverworts) and Bryophyta (Moss)?
What are the functions of each?
What is a Thallus? What is a thallose Liverwort? How do tahllose liverworts differ from Leafy Liverworts?
What two critical Epidermal adaptations do Thallose liverworts like Marchantia have? What is a third Epidermal adaptation seen with this group?
Do these organisms attain the tissue level of organization? Do they have distinct Tissues? Do they reach the organ (leaf/stem/root) level of organization?
Do Moss have Vascular tissues? What are they called?
Which Division (Phylum) of plants closely resembles the first fossil land plants? Do these plants reach the Organ level of organization? If so which Organ(s)?
Do Lycopods (Lycophyta) reach the organ level of organization? If so what Organs do the possess?
What is a sporophyll? What is a cone or Strobilus?
What is a Microsporophyll or a Megasporophyll?
What is a Microphyll? What is a Megaphyll? Cite 2 Divisions (Phyla) that produce Megaphylls.
What is a Leaf Trace? .........Leaf
gap? What Steles are associated with plants that have leaf gaps?
(Protostele - Siphonostele - Dictyostele - Eustele)
What is an Elater? What is its function? What secondary wall trait is associated with Elaters and their function?
In simple terms how does an Elater work.
What is the difference(s) between Primary & Secondary Growth? To which dimension does secondary growth affect (Length vs Breadth)?
What are the two Meristems that produce Secondary Growth? What Tissues(s) is/are produced by each? What are the function(s) of each?
What is Suberin & what are its qualities with regard to its functions in plant cell walls?
What is the Interfascicular Region?
What is Circinate Vernation?
What does the word Ovule mean?
What is an Ovule from a compositional viewpoint?
What reproductive benefits do Megagametophytes gain from being part of an Ovule?
What does the term Angiosperm mean? Why is this a step forward in terms of sexual reproduction compared to Gymnosperms which only produce Ovules? Be sure to consider all aspects of this from the production of Gametophytes, Gametes, fertilization, Embryo development, longevity & germination.
What are the Major Flower Parts & What are their Functions?
What is a Carpel and what are its distinctive Functions?
What is the Egg Apparatus?
What is the Central Cell & what does it produce following fertilization?
What is the Micropyle?
What is Transmitting Tissue? & its Function?
What is a Syncarpous Gynoecium ....... Apocarpous?
What is a Fruit? What are the important features of Fruit in terms of Reproductive success? ......Seeds?