Prokaryotes

Question 1

Prokaryotes

Answer 1

Archea and bacteria and prokaryotic cells
lack nuclei and membrane-bound ells
smalled living organism
live in extreme environments
more prokaryote cells than eukaryote

Question 2

Diversity of Prokaryotes

Answer 2

lots of prokaryote cells but not dicoered cuz scientists can not go to extreme locations

Question 3

Why are Prokaryotes Important

Answer 3

Hvae positive impact such as gut digestion, nutrient cycling, produce vitamins and use in food as probiotics (yogurt)

however it can be harmful due to pathogens= infection bacteria

Question 4

Bacteria: General Characteristics

Answer 4

Has cell wall, membrane and cytoplasms
Has one chromsome called nulceoid
has ribosomes, pili and flagella
have plasmids and sticky capsule

Question 5

characteristics explained

Answer 5

pili allows bacteria to move
flagella propells bacteria to move
sticky capsid prevents water loss, resists temperature changes and keep out antibiotic and virus
bacteria can trade plasmids with other bacterua
plasid dna can be resilt to antibodics (share this to other cells an dmutations)

Question 6

Bacteria: Shapes

Answer 6

round (coccus), rod shaped (bacillues), spiralete (spiral)

can be diploccoi (pair), strepoccoi (chain), staphilloccous (clusters)

Question 7

Ecoli

Answer 7

Escherichia Coli
some strands of ecoli are harmless
some are harmfull and can cause food posining

Question 8

Somach ache

Answer 8

Shigella dysenteriae
causes cramps, fevers, dihera

Question 9

Archea unqiuiess

Answer 9

cell walls and membrane are unquily chemically made up
have unqiue gentic code
live in extreme enviorment

Question 10

Archea groups

Answer 10

Methanogens: make energy using using chemicals to gas, like low oxygen
Halophiles: like salt
Extreme thermophiles: like hot lcimate
Psychrophiles: like cold climates

Question 11

Bacteria groups

Answer 11

green bacteria: :in salt or hot springs, photosthis diff from plants

cyanobacteria: symbiotic relationship with fungi, producer and nitrogen fixer is h20 and photosynthesis diff from plants

gram postive bacteria: probotcis in yogurts, step throat

spirochetes: spiral shaped flugeum in cytoplasm

chlamdiyas: cause clamida and are partstic sthat live with cells

proteobacteria:photosytheis differnet from plants, nirtogen fixing, uclers