Slide 1

Slide 2

The Science of Life I. Organization of Life A. Domains of Life B. Viruses C. DNA D. Evolution

Slide 3

A. Domains of Life Three Domains Prokaryotes 1. Archaea 2. Bacteria 3. Eukarya Protista Fungi Plants Animals nucleus Prokaryotes and eukaryotes Eukaryotes Bonobos

Slide 4

A. Domains of Life Extremophiles 1. Archaea (-um) Prokaryotes autotrophs

Slide 5

Escherichia coli (E.coli) pathogen Resistance and Natural Selection Staphylococcus aureus 2. Bacteria (-um)

Slide 6

Inside bacteria cells (cell membrane) loopy ubiquitous autotrophs heterotrophs Cell reproduction

Slide 7

In which of the following environments would you most likely find an archaeum? a. on the leaf of a tree b. on a table top c. inside of a volcano d. in a dog s mouth

Slide 8

3. Eukarya Protista Fungi Animalia Plantae

Slide 9

a. Protista Chagas Malaria Sleeping sickness Intracellular parasites Single celled; nucleus Autotrophs and heterotrophs

Slide 10

b. Fungi Filamentous growth Extracellular digestion Hypha(e) Spores Cell wall

Slide 11

Human Pathogens Candida albicans Yeast infection Cradle cap Thrush Athletes foot Ringworm PenicilliumPneumonia Heterotrophs

Slide 12

c. Plants PS:6CO 2 +6H 2 OC 6 H 12 O 6 +6O 2 Autotrophs Light Energy

Slide 13

d. Animals Heterotrophs Invertebrates Vertebrates No cell walls

Slide 14

Which of the following contains no autotrophs? a. fungi b. plants c. protista d. bacteria e. more than one of these Which is a difference between prokaryotes and eukaryotes? a. prokaryotes don t have DNA; eukaryotes do b. prokaryotes don t grow or reproduce; eukaryotes do c. prokaryotes have a nucleus; eukaryotes don t d. eukaryotes have a nucleus; prokaryotes don t

Slide 15

What can autotrophs do that heterotrophs cannot do? a. maintain homeostasis b. move from one place to another without any aid c. produce carbon dioxide d. make their own carbohydrates

Slide 16

B. Viruses HIV Flu Cold Ebola ERVs H1N1

Slide 17

Infect more cells B. Viruses: Infection protein coat viral DNA or RNA Living or non-living?

Slide 18

Which of the following is a reason for why viruses are considered non-living? a. they can t be killed b. they don t have a nucleus c. they don t have DNA d. they don t metabolize Of the following, which is the best treatment for a viral infection? a. antibiotics b. get rest and drink liquids c. run a marathon d. eat lots of chocolate and watch Oprah

Slide 19

C. DNA: Unity and Diversity of Life Double helix

Slide 20

C. DNA: Unity and Diversity of Life A, C, T, G Two roles of DNA: Self replication Genetic code Genetic code

Slide 21

DNA is like a cookbook Genes are like recipes for proteins Codons are like the words in the recipes ATCG are like the letters of the words DNA Analogy Amino Acids are like the ingredients Ribosomes are like the ovens RNA is like the cook

Slide 22

In the DNA analogy, what are codons? a. the recipes b. the cooks c. the letters d. the words

Slide 23

D. Evolution: the Organizing Principle of Biology Natural selection- the main theory of evolution Theory- a well documented, explanatory principle Evolution explains why organisms are similar (common ancestry) and why they are different (adaptation). Antibiotic resistance

Slide 24

D. Evolution: the Organizing Principle of Biology Genetic variation is the raw material for evolution Natural selection

Slide 25

Misconceptions About Evolution 1. Many scientists reject evolution. 2. There are no transitional forms (missing links) in the fossil record. 3. Evolution is just a theory. Theory a well-documented, explanatory principle 4. If humans evolved from monkeys, why are there still monkeys around? More myths of evolution 5. Only atheists believe in evolution.

Slide 26

What is the raw material for evolution? a. natural selection b. reproduction c. genetic variation d. environmental change A theory is a well documented, _____ principle. a. expository b. explanatory c. entertaining d. expeditious

Slide 27

Cell Biology in the News

Slide 28

What is the controversy over PGD? a. it can be used to detect lethal genetic disorders b. it can be used to detect non-lethal genetic disorders c. it can be used to detect the sex of an embryo d. more than one of these is controversial

Slide 29

The Founding Fathers of Biology Aristotle (384 322 BCE)

Slide 30

The Founding Fathers of Biology Gregor Mendel (1823-1884)Charles Darwin (1809-1882)

Slide 31

Concept map

Slide 32

The End

Slide 33

Slide 34

Scientific Support for Evolution NABT AAAS NAS The rest of the world?

Slide 35

Slide 36

Slide 37

The Clergy Letter Project