S.I. Final Review

Question 1

Eukaryotic cells
Eukaryotes

Answer 1

Eukaryotic cell - contain a nucleus and organelles bound by plasma membranes
Eukaryotes - often multicellular

Question 2

Prokaryotic cells
Prokaryotes

Answer 2

Prokaryotic cells - do not have a membrane-bound nucleus or organelles
Prokaryotes - mostly single celled organisms, (flagella, fimbriae, pilli), cells walls (chemically complex), plasmids

Question 3

What microbes eat -> why they need carbons

Answer 3

• why they need carbons -> helps with metabolism (creating carbs, proteins, lipids, and nucleic acids)
  • heterotroph -> obtain carbon rom organic (or natural) forms
    - sources like fungi and parasites
    - make their own CO2
  • autotroph -> obtain carbon from an inorganic form
    - sources like plants and algae
    - cannot make their own CO2, have to get it from another source

Question 4

What microbes eat -> where they get their energy

Answer 4

• energy comes from carbs, proteins, lipids, and nucleic acids
  
  • phototroph -> use light to make sugars/energy
    - photosynthesis is the process
    - phototroph is the type of organism
  • chemotroph -> gets its energy from chemical compounds