Gymnosperm Diversity And Biology
- 1.Where is seed plants produced?
- A.
Within a fruit
- B.
Sporophylls
- C.
Sporangia
- 2.Sporophyll is a leaf producing spore which is a highly modified leaf
- A.
True
- B.
False
- 3.Strobili (pine cone, cone) are sporophylls arrangened in a cross
- A.
True
- B.
False
- 4.Produce ovules surrounded by a fleshy cup like covering called aril. Bright red and open at one end
- A.
Junipers
- B.
Yew (Taxus)
- C.
Pinus Longaeva
- 5.Fleshy at maturity (cones look like berries). Pollen lacks air sacs and used to make gin
- A.
Yew (Taxus)
- B.
Junipers
- C.
Methuselan
- 6.Worlds oldedst organism is the Pinus Longavea (bristlecone pine)
- A.
True
- B.
False
- 7.Resin canals are developed in the _______ throughout the plant
- A.
Sporangia
- B.
Xylem
- C.
Mesophyll
- 8.Tubes lined with cells that secrete a resin because
- 9.Gymnosperm wood consists of..
- A.
Tracheids
- B.
Xylem
- C.
Phloem
- D.
Stomata
- E.
Soft wood
- 10.Fungi associted with the roots...
- A.
Ginkgophyta
- B.
Biloba
- C.
Mycorrhizal
- 11.Phylum Ginkgophyta leaf veins brach monotomously
- A.
True
- B.
False
- 12.Ginkgophyta...
- A.
Has holdfasts
- B.
Vomit odor
- C.
Keystone species
- 13.Tropical trees, look simular to a tree fern crossed with a palm
- A.
Hepaticophyta
- B.
Bryophyta
- C.
Streptophytes
- D.
Polypodiophyta
- E.
Cycadophyta
- 14.Cycadophyta has a life cycle similar to pines...
- A.
Large pollen
- B.
Ovulate cones
- C.
Double fertilization
- D.
Contain vessel elements
- E.
Flagellated sperm
- 15.2nd largest group of gymnosperms
- A.
Gnetophyta
- B.
Ginkgophyta
- C.
Antocerophyta
- D.
Cycadophyta
- E.
Alveolates
- 16.Phylum Gnetophyta is closely related to bryophytes
- A.
True
- B.
False
- 17.Gnetophyta contain _______ _______ in their xylem
- 18.Gnetophyta have which 3 genus
- A.
Ephedra
- B.
Pinus strobus
- C.
Euglenoids
- D.
Gnetum
- E.
Taxodium distichum
- F.
Welwitschia
- 19.Genus Ephedra is found in
- 20.Genus Ephedra...
- A.
Leaves in whorls of 2 n 3's
- B.
Flagalleted sperm
- C.
Frond like leaves
- D.
Double fertilization
- E.
Aferdrin (sudafed)
- 21.Genus Gnetum occurs in the tropics of south america, africa and south east asia
- A.
True
- B.
False
- 22.How do Genus Gnetum look similar to angiosperms?
- 23.Genus Welwitschia
- A.
CAM PSN
- B.
Lack roots and leaves
- C.
Short stem, 2 leaves whole life
- D.
Alternation of generations
- E.
100+ years, some 1,000 yrs old
- 24.Pinus Strobles....(confiners)
- A.
Vine like leaves
- B.
Masts for english ships
- C.
Has flagella
- D.
Less resin
- E.
Very resistant to decay
- F.
Overharvested, lacks genetic diversity
- 25.Conifer resin is composed of...
- A.
Tannins
- B.
Turpentine(liquid)
- C.
Vessel elements
- D.
Rosin(waxy)
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