1. Why CAN’T we live forever????

2. GERMS!!!

3. GERMS aka HARMFUL MICROBES!!!

4. GERMS aka HARMFUL MICROBES aka HARMFUL MICRO-ORGANISMS!!!

5. MICRO-ORGANISMS = MICROBES
BACTERIA
VIRUSES
PROTOZOA (protists)
some FUNGI
some PARASITES

6. MICRO-ORGANISMS = MICROBES
BACTERIA
VIRUSES
PROTOZOA (protists)
some FUNGI
some PARASITES
SOME CAN BE GOOD, SOME CAN BE BAD

7. PATHOGENS = CONTAGIONS = GERMS = BAD MICROBES = BAD MICROORGANISMS
bad BACTERIA
bad VIRUSES
bad PROTOZOA (protists)
some bad FUNGI
some bad PARASITES
HARMFUL
HARMFUL
HARMFUL
HARMFUL
HARMFUL

8. What is the smallest of ALL living things?
BACTERIA
VIRUSES
PROTOZOA (protists)
some FUNGI
some PARASITES

9. What is the smallest of all living things?
BACTERIA
VIRUSES
PROTOZOA (protists)
some FUNGI
some PARASITES

10. the smallest living thing
Bacterium
the smallest living thing

11. Bacterium (1) Bacteria (many)
the smallest living thing
the smallest CELL

12. Bacterium (1) Bacteria (many)
So what does the smallest living thing do that ALL living things do??? (including you and me)

13. CELL THEORY YOU SHOULD ALREADY HAVE THIS.
ALL LIVING THINGS are made of CELLS.
ALL CELLS arise from (come from) other CELLS.
CELLS are the smallest STRUCTURE of life.
CELLS can carry out ALL FUNCTIONS of life.
YOU SHOULD ALREADY HAVE THIS.
Even 1- celled little microbes…

14. ALL CELLS must:
ABSORB & USE ENERGY… chemical energy of course

15. ALL CELLS must:
absorb & use energy to GROW…

16. ALL CELLS must: absorb & use energy to GROW & REPRODUCE…
stentor budding…weird reproduction
cCvhYmjaXE

17. Bacterium (1) Bacteria (many)
WHAT MUST BACTERIA DO
IN ORDER TO BE ALIVE?
Like US they GROW
REPRODUCE!
ABSORB & USE CHEMICAL ENERGY!

18. Do you remember YOUR cell processes?
CELL FUNCTIONS
ORGANELLES INVOLVED
(cell part)
WHAT’S the PROCESS CALLED?
WHAT RESULTS?
ABSORB ENERGY 1. 2.
macronutrients enter cell
USE CARBOHYDRATE ENERGY
GROW
doubles-up the organelles
REPRODUCE
nucleus & then cell split

20. Simple BACTERIA work similar.
BACTERIA CELL FUNCTIONS
ORGANELLES INVOLVED
(cell part)
WHAT’S the PROCESS CALLED?
WHAT RESULTS?
ABSORB ENERGY
 MEMBRANE
1. OSMOSIS
2. DIFFUSION
macronutrients enter cell
USE CARBOHYDRATE ENERGY
GROW (proteins)
RIBOSOMES
PROTEIN SYNTHESIS
doubles-up the organelles
REPRODUCE

21. Simple BACTERIA work similar.
BACTERIA CELL FUNCTIONS
ORGANELLES INVOLVED
(cell part)
WHAT’S the PROCESS CALLED?
WHAT RESULTS?
ABSORB ENERGY
 MEMBRANE
1. OSMOSIS
2. DIFFUSION
macronutrients enter cell
USE CARBOHYDRATE ENERGY
 CYTOPLASM
 ANAEROBIC RESPIRATION (no oxygen needed)
Other CHEMICAL ENERGY
GROW (proteins)
RIBOSOMES
loose DNA
PROTEIN SYNTHESIS
doubles-up the organelles
REPRODUCE
 NO NUCLEUS
BINARY FISSION
CELL SPLITS FAST!

22. Bacteria are SINGLE-CELLED organisms that are SMALLER THAN OUR BODY’S CELLS.
How much smaller?
Check out an e.coli bacterium versus our red blood cell.

23. EACH ONE a CELL… EACH ONE ALIVE (but still communicating)
UNICELLULAR
Bacteria are SINGLE-CELLED organisms that are smaller than our body’s cells.
How much smaller?
Check out an e.coli bacterium versus our red blood cell.
EACH ONE a CELL… EACH ONE ALIVE
(but still communicating)

24. Earth has MILLIONS OF SPECIES of BACTERIA,
That slippery film
on the inside of an old
glass is mostly good
bacteria!
Earth has MILLIONS OF SPECIES of BACTERIA,
ONE GLASS of CLEAN, DRINKING WATER contains TEN MILLION HELPFUL BACTERIA!
These 10 million represent at least a COUPLE THOUSAND different SPECIES of bacteria. )

25. freaky fact of the day!

26. freaky fact of the day!

27. Of course, these bacteria can be pathogenic contagions too…
THIS IS JUST A SHORT LIST OF DIFFERENT BACTERIA THAT CAN BE FOUND JUST IN THE HUMAN BOWEL SYSTEM THAT CAN BE HARMFUL.

28. Earth has MILLIONS OF SPECIES of bacteria,
BUT ONLY A HANDFUL of SHAPES: )

29. How long have we had BACTERIA on EARTH???

30. How long have we had BACTERIA on EARTH???
How long have we had BACTERIA on EARTH???
Scientists at the University College London say they have discovered the remains of microorganisms in Quebec, Canada that are at least 3.77 billion years old. If they are proven to have a biological origin, they would be the oldest microfossils ever found.
The discovery comprises tiny filaments and tubes formed by bacteria that lived on iron, They were found in quartz layers in the Nuvvuagittuq Supracrustal Belt in Quebec, Canada, which contains some of the Earth's oldest known sedimentary rocks, it said.
"Our discovery supports the idea that life emerged from hot, seafloor vents shortly after planet Earth formed.“ --3/1/17

31. 3.7 out of 4.5 billion years our Earth has had BACTERIA!
ABSOLUTE, RADIOACTIVE DATING SHOW BACTERIA have been on Earth over 3.7 BILLION YEARS!! .
3.7 out of 4.5 billion years our Earth has had BACTERIA!

32. Bacteria are our most primitive life on our planet….
Bacteria are our most primitive life on our planet…
They’ve been on Earth for BILLIONS of years!
In contrast, HUMANS have been here only out of 4.5 billion years on Earth
wimpy, wimpy, wimpy

33. BACTERIA: (3.7 / 4.5) x 100 = HUMANS: (0.0001 / 4.5) x 100 =
calcs out
If we EVER find life on other planets, it’s no wonder why scientists think it will be BACTERIAL.
BACTERIA: (3.7 / 4.5) x 100 =
HUMANS: ( / 4.5) x 100 =

34. If we EVER find life on other planets, it’s no wonder why scientists think it will be BACTERIAL.
BACTERIA: (3.7 / 4.5) x 100 = 82% of EARTH HISTORY
HUMANS: ( / 4.5) x 100 = 0.002% of EARTH HISTORY

35. Bacteria BY FAR are the most SUCCESSFUL LIFE on our planet….
No WAY we can stop them all!!
They’ve been on Earth for BILLIONS of years!
Why?

36. Bacteria BY FAR are the most SUCCESSFUL LIFE on our planet….
No WAY we can stop them all!!
They’ve been on Earth for BILLIONS of years!
Why?
IF WE TRY
TO STOP THEM,
WE LOSE!

37. Why are bacteria MOST SUCCESSFUL?

38. Under IDEAL conditions, bacteria can divide & split every 20 minutes!
It takes us til we are teenagers before we can get pregnant (please don’t).
And even then it takes 9 months for a baby to be born.

39. If you started with just 10 teeny microbe bacteria, and they split every 20 minutes, how many will you have in just 5 hours?
Time passed
# of bacteria
BEGIN 10
:20 20
:40 40
1 HOUR
1:20
1:40
2 HRS
2:20
2:40
3 HRS
3:20
3:40
4 HRS
4:20
4:40
5 HRS
5:20
5:40

40. If you started with just 10 teeny microbe bacteria, and they split every 20 minutes, how many will you have in just 5 hours?
Time passed
# of bacteria
BEGIN 10
:20 20
:40 40
1 HOUR 80
1:20
160
1:40
320
2 HRS
2:20
2:40
3 HRS
3:20
3:40
4 HRS
4:20
4:40
5 HRS
5:20
5:40

41. If you started with just 10 teeny microbe bacteria, and they split every 20 minutes, how many will you have in just 5 hours?
Time passed
# of bacteria
BEGIN 10
:20 20
:40 40
1 HOUR 80
1:20
160
1:40
320
2 HRS
640
2:20
1,280
2:40
2,560
3 HRS
3:20
3:40
4 HRS
4:20
4:40
5 HRS
5:20
5:40

42. If you started with just 10 teeny microbe bacteria, and they split every 20 minutes, how many will you have in just 5 hours?
Time passed
# of bacteria
BEGIN 10
:20 20
:40 40
1 HOUR 80
1:20
160
1:40
320
2 HRS
640
2:20
1,280
2:40
2,560
3 HRS
5,120
3:20
10,240
3:40
20,480
4 HRS
4:20
4:40
5 HRS
5:20
5:40

43. If you started with just 10 teeny microbe bacteria, and they split every 20 minutes, how many will you have in just 5 hours?
Time passed
# of bacteria
BEGIN 10
:20 20
:40 40
1 HOUR 80
1:20
160
1:40
320
2 HRS
640
2:20
1,280
2:40
2,560
3 HRS
5,120
3:20
10,240
3:40
20,480
4 HRS
40,960
4:20
81,920
4:40
163,840
5 HRS
327,680
5:20
5:40

44. In just 5 hours, 10 bacteria turned into over 300,000 micro-organisms
What did we get?
In just 5 hours, 10 bacteria turned into over 300,000 micro-organisms

45. How many bacteria can there be in 8 hours?
Time passed
# of bacteria
5 HOURS
327,680
5:20
5:40
6 HRS
6:20
6:40
7 HRS
7:20
7:40
8 HRS

46. How many bacteria can there be in 8 hours? OVER 167 MILLION!
Time passed
# of bacteria
5 HOURS
327,680
5:20
5:40
6 HRS
2,621,440
6:20
6:40
7 HRS
7:20
7:40
8 HRS
>167 MILLION

47. Why are bacteria MOST SUCCESSFUL?
They reproduce VERY quickly.

48. Why are bacteria MOST SUCCESSFUL?
They reproduce VERY quickly.
What does this look like on a graph?

49. Bacteria can split (through _________ _______) in 2 as fast as every 20 minutes!!!
Numb e r of b a c t i
1.1M
900K
700K
500K
300K
100K
1hr
2hrs
3hrs
4hrs
5 hrs
Time: every 20 minutes

50. Bacteria can split (through _________ _______) as fast as every 20 minutes!!!
DIVIDE in 2
Numb e r of b a c t i
1.1M
900K
700K
500K
300K
100K
1hr
2hrs
3hrs
4hrs
5 hrs
Time: every 20 minutes

51. DOUBLE
Bacteria can split (through _________ _______) as fast as every 20 minutes!!!
Numb e r of b a c t i
1.1M
900K
700K
500K
300K
100K
1hr
2hrs
3hrs
4hrs
5 hrs
Time: every 20 minutes

52. It’s hard to make a graph BIG enough to show that much growth!!!
yikes
Numb e r of b a c t i
1.1M
900K
700K
500K
300K
100K
1hr
2hrs
3hrs
4hrs
5 hrs
Time: every 20 minutes

53. oh man, that’s crazy growth.

54. Why are bacteria MOST SUCCESSFUL?
They reproduce VERY quickly!
hey can survive almost anything!
HOW?

55. Why are bacteria MOST SUCCESSFUL?
They reproduce VERY quickly!
BINARY FISSION
ey can survive almost anything!

56. NUCLEAR FISSION like when at ATOM splits in two!
They reproduce qui
BINARY FISSION
They can survive almost anything!

57. Bacteria split SIMPLY in two through BINARY fission.
y can survive almost anything!

58. Bacteria split SIMPLY in two through BINARY fission.
y can survive almost anything!
Not SEXUAL, nooo

59. Why are bacteria MOST SUCCESSFUL?
They reproduce VERY quickly.
BINARY FISSION-SUPERFAST Asexual divide & split & DOUBLE
They can survive almost anything!

60. WHY is BACTERIA BINARY FISSION so much FASTER than MITOSIS?
They reproduce quickly.
BINARY FISSION-superfast asexual reproduction
They can survive almost anything!
They have lots of species, each genetically different.
Some work with us!

61. WHY is BACTERIA BINARY FISSION so much FASTER than MITOSIS?
WHAT ARE BACTERIA MISSING?
They reproduce quickly.
BINARY FISSION-superfast asexual reproduction
They can survive almost anything!

62. WHY is BACTERIA BINARY FISSION so much FASTER than MITOSIS?
LOOK MA! NO NUCLEUS!
They reproduce quickly.
BINARY FISSION-superfast asexual reproduction
They can survive almost anything!

63. WHY is BACTERIA BINARY FISSION so much FASTER than MITOSIS?
They reproduce quickly.
BINARY FISSION-superfast asexual reproduction
They can survive almost anything!
NO NUCLEUS!

64. REMEMBER: WHAT RHYMES WITH “NO”???

65. PROkaryote cells have NO nucleus!
BACTERIA are PROkaryotic NO nucleus creatures!

66. or cilia
on some

67. PROKARYOTE
or cilia
on some

68. Why are bacteria MOST SUCCESSFUL?
They reproduce VERY quickly.
BINARY FISSION-superfast Asexual divide & split & DOUBLE
PROKARYOTE cell means NO NUCLEUS so NO MITOSIS.
They can survive almost anything!

69. bacteria growth worksheet…