Bacteria Chapter Flashcards
(18 cards)
How do antibiotics work?
Attack bacteria by slowing down growth which means they can not metabolise
What is gram staining used for?
finding if the bacteria is gram-negative or positive, so we can give the specific antibiotics to the form of bacteria
What are some examples of viruses?
covid, chicken pox, flu, MERS, hantavirus, cold, ebola, HPV
How does a virus reproduce?
Lictic-bacteria attach themselves to another bacteria sticks its pila into it and get the information
Lysogenetic-active, cut open
What are the 4 types of archea and where do they live?
Thermophile-in extreme temperatures, deep sea vents
Methanogens- in toxic environments, meth gas areas
Halophile-salt environments, dead sea
Acidophile- acid environments like your stomach
What is a pathogen?
any organism that can cause a disease
T/F
All bacteria are heterotrophs
True
T/F Viruses are sometimes used as medicines
True
Are viruses alive?
No because they can’t maintain homeostasis, no cells, don’t have organelles, require a host to reproduce
What is the most common form of reproduction?
Binary fission
What is archaea lacking that bacteria have?
molecule peptidoglycan in their cell walls
What is a nucleoid?
Free-floating DNA
What is opportunistic bacteria?
bacteria that is already in your system and takes advantage of your cells when they are outside of homeostasis
How are bacteria helpful?
food in stomach-help digest food, produce vitamins, produce foods, decomposers
What are the 3 types of bacteria shape?
cocci-circle shaped, bacilli-rod shaped, spiralian-spiral shape
What keeps bacteria from drying out?
capsule
What is conjugation?
When one bacterium pokes pila and shares plasmids
What are the characteristics of archaea?
live in extreme enviroment, lack peptidoglycan layer in cell walls, lay dormant until you maintains homeostasis.
