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

Excav

ata

Animal

ia

Rhizaria

FungiChro

m-

alve

olata

Planta

e

eukaryotic cells(nucleus, etc.)

Amoeb

ozoa

most protozoans, brown algae, & water “molds”

starch,cellulose

glycogen

chitin

Animal Life Cycle

The ONLYhaploid stage(single celled)

Alternation of Generations

multicellularhaploid (1n) stage

multicellulardiploid (2n) stage

mitosismitosis

mitosis

zygote

Alt. of Gen. (Seed Plants)

mitosis

mitosis

mitosis

zygote

mitosis

embryo(in seed)

femalemale

multicellularhaploid (1n) stages

multicellulardiploid (2n) stage

in ovule

= pollen grain

Plant Phylogeny

Rhodophyta

Chloro

phyta

Bryophyt

a

Ginkg

ophyta

Ptero

phyta

liver

worts

club “m

osses

”

Conifero

phyta

Anthophyt

a

chlorophyll b, starch

cuticle with air pores, gametangia, embryos,

thick spore walls

flo

rid

ea

n s

tarc

h

xylem, phloem,sporophyte dom.

seeds, pollen,heterospory

flowers, dbl. fert

resincan.

Moss Life Cycle

multicellularhaploid (1n) stage

multicellulardiploid (2n) stage

mitosismitosis

mitosis

zygote

attached &dependent

Fern Life Cycle

multicellularhaploid (1n) stage

multicellulardiploid (2n) stage

mitosis

mitosis

mitosis

zygote

attached &dependent

mitosis

nowindependent

mitosis

nowindependent

embryo sporo.dependent on

♀ gametophyteIn seed

Flowering Plant Life Cycle

multicellularhaploid (1n) stage

multicellular diploid (2n) stage

mitosis

mitosis zygote

embryo(in seed)

embryo sporo. NOT dependent on ♀ gametophyte in seed, dependent on TRIPLOID ENDOSPERM

Flowers

Few Fused Carpels

Many Separate 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)