Bio 1404 exam 2
Plants possibly evolved from - Answer-Green algal ancestors
What are the five similarities between algae and land plants? - Answer--Both contain chlorophyll
-Have chloroplasts with thylakoid stack
-Store starch in plastids
-Cellulose in cell walls
-Go through alterations o...
Bio 1404 exam 2
Plants possibly evolved from - Answer-Green algal ancestors
What are the five similarities between algae and land plants? - Answer--Both contain
chlorophyll
-Have chloroplasts with thylakoid stack
-Store starch in plastids
-Cellulose in cell walls
-Go through alterations of Generations Life Cycle
When evolving to life on land, how did plants overcome: Need of minerals - Answer-
Roots absorb H2O and minerals
When evolving to life on land, how did plants overcome: gravity - Answer-Lignin and
cellulose in cell walls
When evolving to life on land, how did plants overcome: Increase height for light -
Answer-Vascular Transport System
When evolving to life on land, how did plants overcome: Drier environment - Answer-
Waxy cuticle and stomata with guard cells
When evolving to life on land, how did plants overcome: Reproduction without water
- Answer-Pollen containing sperm
How are seeds formed: Gymnosperm - Answer-have naked seeds in cones
How are seeds formed: Angiosperms - Answer-seeds are formed when an egg or
ovule is fertilized by pollen in the ovary
Monocot: leaf Ventilation - Answer-Parallel
Monocot: Flower parts - Answer-multiples of 3
Monocot: Vascular tissues in stem - Answer-scattered
Monocot: # of Cotyledon - Answer-one
Dicot: Leaf venation - Answer-Net ventilation
Dicot: Flower parts - Answer-Found in 4's or 5's
Dicot: Vascular tissue in stem - Answer-In rings in cross section of stem
Dicot: # of Cotyledon - Answer-two
, What was the origin of land plants essential for? - Answer--development of
substantial soils
-evolution of modern plants
-animals colonizing the land
Hepatophyta: - Answer-Liverworts
Bryophyta: - Answer-Mosses
Anthocerophyta: - Answer-Hornworts
Lycophyta: - Answer-Club moss
Pteridophyta: - Answer-Ferns
Cycadophyta: - Answer-Cycads
Ginkgophyta: - Answer-Ginkgos
Coniferophyta: - Answer-Conifers
When did vascular plants first appear on earth? What is this are called? - Answer--
420-429 mya
-Coal Age
What impact did the drop in CO2 of the atmosphere have on Earth's climate? -
Answer--Allowed plants to covert huge amounts of CO2 into decay-resistant organic
material*
-Removal of large amounts of CO2 form the atmosphere by plants had a cooling
effect on
the climate
Why do we find vascular plant fossils more often than bryophyte fossils? - Answer-
Due to their abundant lignin and cutin
Homospory: - Answer-one type of gametophyte that most lycophytes and
pteriophytes release
Heterospory: - Answer-microspores and megaspores that are produced by others
(not lycophytes and
pteridophtes)
Endosporic gametophytes: - Answer-protected gametophytes that grow inside
microscope and
megaspore walls
Dermal tissue: Function - Answer-Outermost layer, like the skin of animals
Dermal tissue: epidermis - Answer-the outermost layer of cells
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