Download Laboratory 11

Lab 11. Overview
 Instructor checks pre-labs. in lab
notebook and collects papers (2 copies).
 Diversity and Plant Life Cycle Overview.
 Examine prepared slides, models, live
organisms, and preserved specimens
 Distribution of papers for peer review
and discussion of peer reviews.
 Instructor overview of diversity.
 Complete in-class exercise as quiz over
diversity and life cycle.
Eukaryote Phylogeny
chitin
most protozoans,
brown algae, &
water “molds”
glycogen
starch,
cellulose
eukaryotic cells
(nucleus, etc.)
Animal Life Cycle
The ONLY
haploid stage
(single celled)
Alternation of Generations
mitosis
zygote
mitosis
multicellular
diploid (2n) stage
multicellular
haploid (1n) stage
mitosis
Alt. of Gen. (Seed Plants)
mitosis
embryo
(in seed)
mitosis
multicellular
diploid (2n) stage
zygote
mitosis
mitosis
in ovule
female
male
multicellular
haploid (1n) stages
= pollen grain
Plant Phylogeny
floridean starch
resin
can.
flowers,
dbl. fert
seeds, pollen,
heterospory
xylem, phloem,
sporophyte dom.
chlorophyll b, starch
cuticle with air pores,
gametangia, embryos,
thick spore walls
Moss Life Cycle
mitosis
attached &
dependent
zygote
mitosis
multicellular
haploid (1n) stage
multicellular
diploid (2n) stage
mitosis
Fern Life Cycle
multicellular
diploid (2n) stage
now
independent
mitosis
attached &
dependent
mitosis
mitosis
mitosis
zygote
multicellular
haploid (1n) stage
now
independent
mitosis
embryo sporo.
dependent on
♀ gametophyte
In seed
Flowering Plant Life Cycle
multicellular
haploid (1n) stage
mitosis
mitosis
multicellular diploid (2n) stage
zygote
embryo
(in seed)
embryo sporo. NOT dependent on ♀ gametophyte in
seed, dependent on TRIPLOID ENDOSPERM
Flowers
Many Separate Carpels
Few Fused Carpels
Kingdom Fungi
yeast
 NOT PLANTS!
 Cell walls with chitin and heterotrophic
 Energy stored as glycogen
 Chitin in cell walls
 Hyphae = fungal filaments one cell thick
(singular = hypha)