Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food...

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Bacteria Energy & Respiration

Transcript of Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food...

Page 1: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Bacteria

Energy & Respiration

Page 2: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

How Bacteria Obtain Energy

Some bacteria can make their own food These are called AUTOTROPHS

Some bacteria require that food be made for them These are called HETEROTROPHS

Page 3: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

AUTOTROPHS

There are two types of AUTOTROPHS

1. Phototrophic

2. Chemotrophic

Page 4: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Phototrophic Autotrophs

They use the sun’s energy to make their own food (sugar)

Eg’s : Cyanobacteria and photsynthetic Eubacteria

Page 5: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Chemotrophic Autotrophs

They are able to use inorganic molecules (ie: hydrogen sulfides, nitrides, sulphur & iron) as food

They tend to live in harsh environments

Eg: Nitrosomonas uses ammonia as a food source

Page 6: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

HETEROTROPHS

There are three types of heterotrophs 1. Phototrophic

2. Chemotrophic

3. Saprotrophic

Page 7: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Phototrophic Heterotrophs

These bacteria are able to use sunlight to produce food molecules but ALSO require organic compounds for nutrition

Very rare

Page 8: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Chemotrophic Heterotrophs

These bacteria take in organic food molecules from their environment to use for energy

Humans are chemotrophic heterotrophs and therefore we often compete with bacteria for the same food source

Eg: Salmonella gets food from raw meat, poultry and eggs. When it grows where food is available it releases poisons which, if the food is not cooked properly, cause food poisoning

Page 9: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Saprotrophic Heterotrophs

These bacteria digest organic matter (food) externally and absorb the resulting nutrients across their cell membranes

Some are involved in recycling matter in ecosystems, these are saprophytic decomposers and are necessary for the functioning of all ecosystems

Page 10: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

How bacteria use food energy

There are two processes by which bacteria convert “food” energy into energy that they can use

1. Respiration

2. Fermentation

Page 11: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Respiration

This process requires oxygen to break down food molecules

Therefore it is an AEROBIC process oxygen + sugar carbon dioxide + water 38 ATP produced (ATP = energy molecule)

Page 12: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Fermentation

This process does NOT require oxygen to break down food molecules to produce energy

Therefore this is an ANAEROBIC process 2 ATP produced

Page 13: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Classification based on respiration

There are three classifications of bacteria based on their mode of respiration 1. Obligate aerobes 2. Obligate anaerobes 3. Facultative anaerobes

Page 14: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Obligate Aerobes

These bacteria carry out aerobic respiration

They MUST live in oxygen rich environments to survive

Page 15: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Obligate Anaerobes

These bacteria carry out fermentation to produce energy from food

They must live in environments where there is NO oxygen

If oxygen is present they will die

Page 16: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Facultative Anaerobes

These bacteria usually carry out aerobic respiration

If deprived of oxygen they can switch to anaerobic fermentation for a short time

Page 17: Bacteria Energy & Respiration. How Bacteria Obtain Energy Some bacteria can make their own food These are called AUTOTROPHS Some bacteria require.

Summary-Complete the tablesEnergy Source

Autotrophs Heterotrophs

Phototrophic

Chemotrophic

Saprotrophic

Respiration

Aerobes Anaerobes

Obligate

Falcultative


ENERGY IN A CELL. AUTOTROPHS – USE ENERGY TO MAKE THEIR OWN FOOD – EXAMPLES INCLUDE… PLANTS, GREEN ALGAE, AND SOME BACTERIA AUTOTROPHS – USE ENERGY TO.

ENERGY IN A CELL. AUTOTROPHS – USE ENERGY TO MAKE THEIR OWN FOOD – EXAMPLES INCLUDE… PLANTS, GREEN ALGAE, AND SOME BACTERIA AUTOTROPHS – USE ENERGY TO.

Primary Producers (Autotrophs)

Primary Producers (Autotrophs)

Photosynthesis Biology 1114. Autotrophs “Self Feeders” Photosynthesize PlantsAlgae / Protists Some Bacteria.

Photosynthesis Biology 1114. Autotrophs “Self Feeders” Photosynthesize PlantsAlgae / Protists Some Bacteria.

Almost all plants are photosynthetic autotrophs, as are some bacteria and protists

Almost all plants are photosynthetic autotrophs, as are some bacteria and protists

Cellular Respiration (Chapter 9). Energy source Autotrophs: Producers Plants, algae and some bacteria Make own organic molecules Heterotrophs: Consumers.

Cellular Respiration (Chapter 9). Energy source Autotrophs: Producers Plants, algae and some bacteria Make own organic molecules Heterotrophs: Consumers.

Almost all plants are photosynthetic autotrophs, as are some bacteria and protists –Autotrophs generate their own organic matter through photosynthesis.

Almost all plants are photosynthetic autotrophs, as are some bacteria and protists –Autotrophs generate their own organic matter through photosynthesis.

- energy flows through - matter recycles Producers = Autotrophs - organisms which can make their food - plants, algae, some bacteria - most use photosynthesis.

- energy flows through - matter recycles Producers = Autotrophs - organisms which can make their food - plants, algae, some bacteria - most use photosynthesis.

Bacteria B 1.1 Bacteria. Bacteria Some types of bacteria live in extreme environments where few other organisms can survive. Bacteria normally have three.

Bacteria B 1.1 Bacteria. Bacteria Some types of bacteria live in extreme environments where few other organisms can survive. Bacteria normally have three.

Energy in Ecosystems Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs: Bacteria which use.

Energy in Ecosystems Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs: Bacteria which use.

Movement of Energy Through an Ecosystem: Producers and Consumers PRODUCERS (autotrophs) –plants, bacteria and algae are the first to capture the energy.

Movement of Energy Through an Ecosystem: Producers and Consumers PRODUCERS (autotrophs) –plants, bacteria and algae are the first to capture the energy.

Photosynthesis and Cellular Respiration Almost all plants are photosynthetic autotrophs, as are some bacteria and protists –Autotrophs generate their.

Photosynthesis and Cellular Respiration Almost all plants are photosynthetic autotrophs, as are some bacteria and protists –Autotrophs generate their.

Modes of Nutrition Autotrophs have the ability to make their own food by the process of photosynthesis (write the word equation) Some bacteria use chemosynthesis.

Modes of Nutrition Autotrophs have the ability to make their own food by the process of photosynthesis (write the word equation) Some bacteria use chemosynthesis.

Cell Structure and Function Fungi Autotrophs Autotrophs are producers. Autotrophs _____ and are not dependent on outside sources for their food. can make their own food Examples include:

Cell Structure and Function Fungi Autotrophs Autotrophs are producers. Autotrophs _____ and are not dependent on outside sources for their food. can make their own food Examples include:

Bacteria.: Support bacteria - they're the only culture some people have :.

Bacteria.: Support bacteria - they're the only culture some people have :.

Autotrophs & Photosynthesis

Autotrophs & Photosynthesis

Photosynthesis Cellular Energy Unit Part I. Autotrophs Producers Photosynthesizing plants, bacteria, and some eukaryotic single celled organisms.

Photosynthesis Cellular Energy Unit Part I. Autotrophs Producers Photosynthesizing plants, bacteria, and some eukaryotic single celled organisms.

Nutrition Autotrophs –plants, some protists & bacteria –producers.

Nutrition Autotrophs –plants, some protists & bacteria –producers.

Photosynthesis Chapter 8. Autotrophs vs. Heterotrophs Autotrophs: Plants and some other types of organisms that use light energy from SUNLIGHT to.

Photosynthesis Chapter 8. Autotrophs vs. Heterotrophs Autotrophs: Plants and some other types of organisms that use light energy from SUNLIGHT to.

Cellular Respiration Chapter 7. Obtaining Food Autotrophs – producers – photosynthesis Autotrophs – producers – photosynthesis Heterotrophs – consumers.

Cellular Respiration Chapter 7. Obtaining Food Autotrophs – producers – photosynthesis Autotrophs – producers – photosynthesis Heterotrophs – consumers.

Chapter 8 Photosynthesis. I./2. Some organisms are producers and others are consumers. a)Autotrophs a)Autotrophs make their own energy from inorganic.

Chapter 8 Photosynthesis. I./2. Some organisms are producers and others are consumers. a)Autotrophs a)Autotrophs make their own energy from inorganic.