Bot 201 Study Questions - 2002

Hornworts-(Anthocerophyta), Liverworts (Hepatophyta), Moss (Bryophyta)

What type of life cycle (history) is common for these and all land plants? (zygotic, sporic, gametic)

Which phase of the Life History for Hornworts-(Anthocerophyta), Liverworts (Hepatophyta), Moss (Bryophyta) is the dominant photosynthetic organism that is readily visible with the human eye? Spoprophyte or (Gametophyte)?

The Sporophytes of the taxa above are very similar. Make an outline sketch of a representative Sporophyte & Label the three principal parts PLUS briefely state the main function of each.

What are elaters (you can draw a sketch) & what are their 2 functions.

What is a Thallus? Which of the following taxa are thalli common?
Hornworts-(Anthocerophyta), Liverworts (Hepatophyta), Moss (Bryophyta)

In which of the above can we find leaf-stem organization? Hornworts-(Anthocerophyta), Liverworts (Hepatophyta), Moss (Bryophyta)

Fill in the blanks: Gametophytes produce ____________________a. These are ___________________a & __________________a.

___________________a produce sperm and _________________a produce eggs.

Sporophytes produce __________________a which produce spores.

Where does Meiosis occur in these organisms?

How many flagella are present on sperm from these organisms?

What is the Calyptra & what is its function?

Explain the meaning of Endosporic & Exosporic; Endoscopic & Exoscopic.

What is chemotaxis?

Which of the above produce Sterids, Hydroids & Leptoids?

Briefely state the principal function of each and relate them to the phloem, xylem and sclerenchyma of flowering plants.

Which of the above has a Marginal meristem?

Which of the above have Apical meristems?

What kind of Apical meristem do they have (Apical Cell or Multicellular)?

Do any of these taxa produce stomata or similar structures?

Do any of these produce a prominent Cuticle?

What is a Protonema?

What are Gemmae?

Explan the meaning of Acrocarpous and Pleurocarpous.