Sample exam 4 (final exam) on plant diversity:

1. ALL members of which of the following pairs of phyla are heterosporous:

a. Hepatophyta and Bryophyta

b. Cycadophyta and Anthocerophyta

c. Lycopodiophyta and Pteridophyta

d. Coniferophyta and Anthophyta

e. Coniferophyta and Pteridophyta

2. Protosteles, microphylls and exarch (outside-in) maturation of xylem in stems are all characteristic of which phylum?

a. Rhyniophyta

b. Lycopodiophyta

c. Pteridophyta

d. Cycadophyta

e. Coniferophyta

3. Only one of the following structures or life cycle stages is haploid. Identify which one it is.

a. Microspore mother cell

b. Nucellus cell

c. Indusiuim cell

d. Sporangium cell

e. Megaspore

4. Which of the following extinct plants is found in the YOUNGEST fossilferous strata:

a. Archaefructus

b. Archaeopteris

c. Cooksonia

d. A seed fern

e. A trimerophyte

5. Which of the following structures does NOT contain xylem or phloem:

a. Rhizome of a fern

b. Microphyll of Lycopodium

c. Rhizoid of fern gametophyte

d. Root of Selaginella

e. Megaphyll of a fern

6. Flagellated sperm cells are produced by all of the following plants EXCEPT:

a. ferns

b. cycads

c. Ginkgo

d. pines

e. mosses

7. Which of the following statements is NOT true about the difference between monoecious and dioecious angiosperms:

a. Monoecious plants produce imperfect flowers

b. Dioecious plants produce imperfect flowers

c. Monoecious plants produce both perfect and imperfect flowers

d. Dioecious plants produce either staminate or pistillate flowers

e. All of the above are true

8. In the moss life cycle, which of the following is diploid:

a. protonema

b. spores

c. antheridium

d. eggs

e. embryo

9. An important difference between the lycophytes and the ferns is:

a. Only ferns produce exosporic gametophytes

b. Only ferns produce rhizomes

c. Only lycophytes exhibit exarch (outside-in) xylem maturation in stems

d. Only ferns produce ovules

e. Only lycophytes produce flagellated sperm

10. Which of the following plants does NOT produce strobili (cones)?

a. Equisetum

b. Psilotum

c. Pinus

d. Lycopodium

e. Selaginella

11. All of the following statements apply to Equisetum and Psilotum species EXCEPT:

a. They are both homosporous

b. They are members of the same phylum

c. Sporophytes of both produce roots, stems and leaves

d. They have exosporic gametophytyes

e. They both have photosynthetic stems

12. Hornworts differ from all other bryophytes in which way:

a. Their cells contain a large central chloroplast with a pyrenoid

b. They produce vascular tissue

c. They are heterosporous

d. They have a dominant gametophyte phase

e. They produce elaters

13. A living, present day phylum that best represents the characteristics of the original common ancestor of the land plants is:

a. Anthophyta

b. Cycadophyta

c. Coniferophyta

d. Hepatophyta

e. Pteridophyta

14. Which of the following plants is monoecious:

a. Ginkgo

b. Cycads

c. Gnetum

d. Pinus

e. Welwitschia

15. Which of the following plants is homosporous:

a. Ginkgo

b. Cycads

c. Lycopodium

d. Selaginella

e. Pinus

a. no antheridia or archegonia