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1444112
Microbiology part 1
Descrição
Mapa Mental sobre Microbiology part 1, criado por Lavinia Hayde em 10-10-2014.
Sem etiquetas
microbiology
science
academics
study
guide
Mapa Mental por
Lavinia Hayde
, atualizado more than 1 year ago
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Criado por
Lavinia Hayde
quase 10 anos atrás
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Resumo de Recurso
Microbiology part 1
Describe the structure of bacteria, fungi and viruses
Generalised Bacteria
Nuclear Material carries bacterium genetic code
Flagellum helps bacteria to move
Cell Wall mantains the bacterium cell shape
Cell membrane controls entry and exit of materials
Generalised fungi
Reproduction hyphae: digest and absorb surrounding material/mode of vegatative growth
Spores: Unit of asexual reproduction
sporagium: In which spores are formed
food source
Generalised virus
protein coat
Shields the DNA from immune system
nuclear material
contains DNA and used to reproduce
attachment sile
Describe the feeding of bacteria, fungi and viruses
bacteria
they can eat:
sugar
starch
sunlight
sulfur
iron
some are photosynthetic
make their own food from sunlight
Extra Cellular Digestion
1. Bacterium lands on the food
2. Bacterium releases Digestive Enzymes
Enzymes break the food into small molecules
fungi
via extra cellular digestion
1. Digestive Enzymes released onto food
2. Enzymes break apart food into smaller components
protein
fats
carbohydrates
3. Small nutrients molecules are absorbed back into fungi
4. provide energy via respiration
viruses
Viruses do not feed
Describe the reproduction of bacteria, fungi and viruses
Bacteria
Binary Fission
1. Bacteria replicates it's DNA via Mitosis
Parent cell copies it's DNA and creates another copy
Cell splits and two daughter cells are formed
2. The Cell Membrane pushes inwards to make two cells
3. Two Identical Bacteria are formed
Fungi
Yeast- Simple Budding
Asexual Reproduction
1. outgrowth due to repeated cell division
2. Buds grow in tiny particles
3. Once Mature splits from parent and becomes an individual body
1. Sporangium full of spores
2. Spores burst out of sporangium
3. Carried by Wind
4. Hyphae sprouts from spores
5. Sporangium begins to grow out of hyphae
6. Spores develop in sporangium- cycle repeats
Viruses
Lytic
1. The virus attaches to bacteria (host)
2. The virus inserts it DNA into the bacteria
3.The virus takes over cell machinery
4. The virus reproduces itself and self assembles The host cell is destroyed
copied from biology.kenyon.edu
Lysogenic
absence of pathology
within particular circumstances lifestyle capable of swapping to lytic
virus- this stage harsh conditions
prophage
1. The virus binds to bacteria (host)
2. The virus inserts its bacteria into the bacteria
3. The viral DNA gets incorporated into the cell's chromosomes
4. Viral DNA is replicate along with Chromosome material
copied from biology,kenyon,edu
Describe microbes that are helpful and harmful
Fungi
Helpful
Antibiotics e.g Pencillin
Food e.g mushrooms, truffles
Bread Production - Yeast
Alcohol Production- fermentation
Used in cheese- moulds
Decomposer- help break down rubbish
Harmful
infections e.g athletes foot, ring worm, thrush
Damage food crops e.g potato blight
Turn food bag e.g mould
Can be poisonous to eat e.g moulds
Bacteria
harmful
feed on our food - expires
feed on dead plant and animal- saprophytes
parasites- reside on living organisms
some release toxins
toxins makes them pathogens
bacteria that can cause diseases
SARS
Syphilis
Typhoid Fever
Cholera
helpful
Recycling of nutrients
treatment of sewage
digestion of cellulose
production of cheese and yoghurt
Viruses
helpful
cowpox
immune to small pox
vaccinia Virus- 1796
Dr Edward Jenners invents vaccination
List some diseases caused be microbes
Bacteria
Sars
Tuberculosis
Syphilis
Typhoid Fever
Cholera
Scarlet Fever
Anthrax
Plague
Tetanus
138 Bacterial Diseases
Virus
Leprosy
cold sore
HIV
Influenza
Chickenpox
small pox
Ebola
Measles
Rabies
Fungi
Aspergellosis
Blastomycosis
Candidiasis
Histoplasmosis
Ringworm
Murcomycosis
Anexos de mídia
New-Image (image/jpg)
prokaryoticcell.gif (image/gif)
Structure_of_fungus (image/jpg)
lytic.gif (image/gif)
lysogenic.gif (image/gif)
500px-Fungi_Reproduction (image/png)
binary_fission.JPG (image/JPG)
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