3 Domains of Life
What are the 3 domains identified by Woese and Fox?
Eukarya, Bacteria and Archaea
Scientists look at a microorganism’s shape, size, and appearance under a microscope. What types of characteristics are they examining?
Physical characteristics
Do Catabolic pathways break down or build up molecules?
Break Down
How do anabolic pathways use ATP?
Breaks one phosphate bond of ATP, so it changes back to ADP
What is the molecule that an enzyme acts on called?
Substrate
Which domains include all prokaryotic cells?
Bacteria and Archaea
This procedure uses different stains to help tell microorganisms apart. What is it?
Differential staining
Is an electron acceptor reduced or oxidized?
Reduced
What is used in photophosphorylation to phosphorylate ADP with inorganic phosphate?
Light energy
What is the combination of an apoenzyme and its cofactors called?
Holoenzyme
Carl Woese and George Fox proposed this new, most inclusive taxonomic category after sequencing ribosomal RNA from methanogens.
Domain
A scientist tests whether a microorganism can use citrate as its only carbon source. What type of identification test is being used?
Biochemical test
What are the 3 important electron carrier molecules?
NAD+, NADP+, FAD
What are the 3 types of phosphorylation?
Substrate-level, oxidative, and photophosphorylation.
What blocks active sites and therefore blocks enzyme activity?
Competitive inhibitors