Lecture 24-28 Flashcards
Protists are _____ and are very diverse
Eukaryotes
Eukaryotic cells have _____ and are ____ complex than prokaryotic cells
organelles, more
The SAR clade is a _____ diverse group of protists which are defined by ___ similarities
highly, DNA
____ are unicellular algae with a unique two-part wall of silicon dioxide
Diatoms
Between brown and golden algae, which is the more complex structure
Brown algae is a more large and complex structure
Of the water plants, what group are the closest relatives of land plants?
Archaeplastida
Cell structure of the algae includes…
Cell wall, vacuole, pyrenoids
What do vacuole do?
Regulate water content of the cell
What are pyrenoids?
The site of starch synthesis
Lichens are a symbiotic relationship, what is that?
Symbiotic relationship is where two organisms have a close living relationship with mutual benefits.
Non-vascular plants are commonly called what?
Bryophytes
Some mosses might help retain _____ in soil
Nitrogen
The gametophyte produces _________ in plants
haploid gametes
Sporophytes are _____________ form of the plant body
Multicellular diploid
Sporophytes are made up of what?
Foot (receives nutrients), Seta, sporangium
____ tissue allows for plants to grow tall
Vascular
What type of vascular plants have flagellated sperm and are restricted to moist environment?
Seedless vascular plants
What is the most diverse seedless vascular plants?
Ferns
What are the main tissue systems?
Vascular, ground, dermal
What does xylem do?
Xylem conducts most of the water and minerals
What is phloem?
Living cells that are arranged into tubes
______ are modified leaves with sporangia
Sporophylls
Gymno = _____, sperms = _____
Naked, seed
Angio means
enclosed
Seed plants are ____sporous
hetero
Male gametophytes are ____
Pollen
An ovule consists of what three things
Megasporangium, megaspore, integuments
What do microspores develop into?
Pollen grain
Angiosperms were divided into two main groups, which are
Monocot (one cotyledon) and dicots (two cotyledon)
What are the two key adaptations of angioperms
Flowers and fruits
____ enclose the flower
Sepals
What part of the flower attracts pollen and what part produces?
petals, stamens
A fruit is formed when the ____ thickens and matures
ovary wall
Fruits are useful to seeds because
They protect the seeds
