What are the four characteristics specific to prokaryotes that we talked about?
DNA not organized into a nucleus
DNA is circular
Lack membrane bound organelles
Most cells walls contain peptidoglycan
What are the for characteristics of cyanobacteria that we talked about?
Unicellular, generally colonial
Have chlorophyll but no plastids
Reproduce by binary fission
Autotrophic
What are the two different types of cells (besides anabaena) found within an anabaena colony and what are their functions?
Heterocysts- nitrogen fixation
Akinetes- house spores
Obligate anaerobes
Can survive and function only in the absence of free 02
Facultative anaerobes
can survive in an 02 free environment but do better with 02
List the three sexual life cycles iwthing the domain Eukarya
zygotic, gametic, sporic
zygotic sexual life cycle (fungus and most algae)
haploid cells fuse to fertilize and form gametes, it divides as 4 haploid cells (spores)
gametic sexual life cycle (some algae)
diploid cells, divide through meiosis
sporic (plants)
alternation of generations, alternates between diploid and haploid cells
list the five characteristics of the kingdom fungi we discussed
all are heterotrophic
chitin cell walls
absorptive nutrition
important decomposers
most use spores to reproduce
two types of heterotrophy in the kingdom fungi
parasites, feed on living matter
saprobes, feed on non-living matter
lichens are a symbiotic relationship between
cyanobacterium/chlorophyta and a fungus (often ascomycote)
List two types of vascular tissue what each transports, and which direction it moves its contents.
zylem, moves water and minerals upwards
phloem, moves nutrients and hormones downwards
Is plant development determinate or indeterminate? Explain.
indeterminate, plants will continue to grow new limbs throughout their entire lifespan
what type of growth is the apical meristem responsible for
responsible for length
what type of growth is the lateral meristem responsible for
responsible for girth/width
two functions of the root
absorption of water and minerals
food storage
two functions of the leaf
gas exchange
absorbs sunlight
shoot
houses zylem and phloem
produces axillary buds
What is transpiration?
the way water leaves a plant