2. Bactérias são organismos
unicelulares constituídos por
células procarióticas, que se
caracterizam por não ter
núcleo nem organelas
membranosas
citoplasmáticas.
3.
4. Estrutura:
Possui a parede celular formada de
peptidioglicano (proteína + açúcar),
responsável pela forma e proteção.
DNA circular que fica concentrado em
uma região central denominada de
nucleoide.
Podem possuir plasmídeos (fragmentos
de DNA não essenciais que ajudam as
bactérias a adquirir novas
características). Estão associados a
resistência a antibióticos.
5. Podem possuir flagelos,
responsáveis pela locomoção
por meio de um movimento
rotacional.
Possuem ribossomos 70s,
que são menores que o dos
organismos eucariotos
(excelente alvo de
antibióticos).
6. Metabolismo
As bactérias autotróficas obtêm
átomos de carbono — a matéria-
prima básica para a produção de
moléculas orgânicas — a partir de
moléculas de gás carbônico (C02).
Essas bactérias podem ser
fotossintetizantes, quando a
fonte de energia para a síntese de
moléculas orgânicas é a luz, ou
quimiossintetizantes, quando
utilizam energia liberada em
reações químicas inorgânicas.
7. Metabolismo
As bactérias heterotróficas obtêm
átomos de carbono a partir de
moléculas orgânicas e podem, de
acordo com a origem do alimento, ser
classificadas em saprofágicas ou
parasitas.
8. Respiração celular
Quanto ao uso de oxigênio para a produção de energia, as
bactérias são classificadas em:
- Aeróbias obrigatórias: utilizam o O².
- Anaeróbias obrigatórias: não utilizam O², morrem na sua
presença.
- Anaeróbias facultativas: fazem fermentação, podem ou não
utilizar o O².
9. Reprodução
A reprodução das bactérias é assexuada por divisão binária, porém
existem os meios para ter variabilidade genética:
- Transformação: quando uma bactéria consegue incorporar um material
genético solto no ambiente.
- Conjugação: troca de plasmídeos entre bactérias, por meio de uma
estrutura denominada pili.
- Transdução: bacteriófagos (vírus que infectam bactérias) carregam
genes de uma bactéria para outra
15. Coloração de Gram
Técnica que permite classificar as bactérias em dois grupos, por meio da
análise das diferenças existentes na composição da parede celular. Quando
submetida à coloração de Gram, a parede celular das bactérias pode
adquirir coloração violeta ou vermelha.
16. As bactérias gram positivas
possuem a parede celular mais
simples e consequentemente
absorvem mais o corante
roxo, por conta do contato
direto com o mesmo. Este tipo
de bactéria é mais sensível a
penicilina, visto que este
medicamente que atinge os
peptideoglicanos.
17. As gram negativas por
possuírem uma dupla membrana
não permitem que o corante
atravesse facilmente a membrana
e alcance a parede celular de
peptideoglicano, ficando com uma
coloração mais clara.
18. Determinar se uma bactéria é gram-positiva ou
gram-negativa é importante para indicar, por
exemplo, que tratamento deve ser adotado em
caso de infecções. As bactérias gram-negativas,
por exemplo, são, em geral, mais resistentes aos
antibióticos que as gram-positivas.
23. OBJECTIVES
01 You can describe the topic of
the section here
METHODOLOGY
02 You can describe the topic of
the section here
RESULTS ANALYSIS
03 You can describe the topic of
the section here
CONCLUSIONS
04 You can describe the topic of
the section here
TABLE OF CONTENTS
24. INTRODUCTION
You can give a brief description of the topic you
want to talk about here. For example, if you
want to talk about Mercury, you can say that it’s
the smallest planet in the entire Solar System
26. BACKGROUND
JUPITER
Jupiter is the biggest
planet of them all
SATURN
Mars is actually a very
cold place
NEPTUNE
MERCURY
It’s the closest planet to
the Sun
VENUS
Venus is the second
planet from the Sun
MARS
It’s composed of
hydrogen and helium
It’s the farthest planet
from the Sun
29. MERCURY
It’s the closest planet to
the Sun and the smallest
one in the Solar System
VENUS
Venus has a beautiful
name and is the second
planet from the Sun
GOALS
MARS
Despite being red, Mars
is actually a cold place.
It’s full of iron oxide dust
30. —SOMEONE FAMOUS
“This is a quote, words full of wisdom
that someone important said and can
make the reader get inspired.”
31. METHODS
HYPOTHESIS
Jupiter is the biggest
planet of them all
OBSERVATION
Mars is actually a very
cold place
DATA
SAMPLING
Mercury is the closest
planet to the Sun
EXPERIMENTS
Venus is the second
planet from the Sun
STUDY
Saturn is a gas giant
with several rings
Neptune is far away
from Earth
32. RESEARCH AND PUBLICATIONS
BY MERCURY
It’s the closest planet to
the Sun and the smallest
one in the Solar System
BY VENUS
Venus has a beautiful
name and is the second
planet from the Sun
33. RESEARCH RESOURCES
● You can list you reference website or publications here
● You can list you reference website or publications here
● You can list you reference website or publications here
● You can list you reference website or publications here
● You can list you reference website or publications here
● You can list you reference website or publications here
34. FACTORS TO
CONSIDER
SATURN
It’s composed of
hydrogen and helium
JUPITER
Jupiter is the biggest
planet of them all
MERCURY
It’s the closest planet to
the Sun
MARS
Despite being red, Mars
is a cold place
36. TRIAL TIMELINE
PRECLINICAL
Mercury is the closest
planet to the Sun
Mars is actually a very
cold place
RESULT
RESEARCH
Jupiter is the biggest
planet of them all
EXPERIMENTS
Neptune is the farthest
planet from the Sun
CONCLUSIONS
Saturn is composed of
hydrogen and helium
37. ANTIBIOTIC RESISTANCE
STEP 01
You can describe the topic of
the section here
STEP 02
You can describe the topic of
the section here
Non resistant bacteria Resistant bacteria Antibiotic
38. PHASE 1
50%
MERCURY
It’s the closest planet to
the Sun
RESULTS
Jupiter is the biggest
planet of them all
GOAL
Neptune is the farthest
planet from the Sun
EFFECTS
Saturn is composed of
hydrogen and helium
1 YEAR
Venus is the second
planet from the Sun
Earth is the third planet
from the Sun
60%
39. TREND
Follow the link in the graph to modify its data and then paste the new one here. For more
info, click here
2020
Jupiter is the biggest
planet of them all
2015
Mercury is the closest
planet to the Sun
2010
Saturn is composed of
hydrogen and helium
41. RESULTS
EXPERIMENT A
TREATMENT TEST 1 TEST 2 TEST 3
GROUP 1 254 368 356
GROUP 2 127 456 587
GROUP 3 112 453 125
EXPERIMENT B
TREATMENT TEST 1 TEST 2 TEST 3
GROUP 1 135 376 786
GROUP 2 564 238 536
GROUP 3 542 764 786
43. RESULTS ANALYSIS
MERCURY
It’s the closest planet to
the Sun
SATURN
It’s composed of
hydrogen and helium
50%
Venus is the second
planet from the Sun
50%
Earth is the third planet
from the Sun
46. CONCLUSIONS
Venus has a beautiful name
and is the second planet
from the Sun. It’s terribly
hot, even hotter than
Mercury, and its
atmosphere is extremely
poisonous. It’s the second-
brightest natural object in
the night sky after the Moon
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