Lecture Exam #3 ch 25 Flashcards
the grand total of all chemical reactions in the body
metabolism
a reaction that combines smaller molecules into larger ones (ex. making an antibody)
anabolic
breaking large molecules into smaller ones (ex: hydrolysis)
catabolic
what are the big 3 of cell metabolism/respiration? (3)
1) glycosis
2) krebs
3) ETS
type of phosphate adding that we see in glycosis and kreb cycle. (phosphate hand off)
substrate level phosphorylation
where do we see substrate level phosphorylation?
in glycosis and krebs cycle
what does the substrate level phosphorylation need to happen and what does it not need?
it needs enzymes to happen but not O2 (aneorobic)
phosphate adding that happens in ETS. (bigger pay off energy wise)
oxidative phosphorylation
where do we see oxidative phosphorylation?
in ETS
what do we need for oxidative phosphorylation?
O2
where does glycosis take place?
in cytoplasm
what comes out during ATP synthesis?
2 ATP, 2 NADH and 2 pyruvic acids
is Acetyic-CoA part of the kreb cycle?
no it’s a separate step
how many ATPs do we get from ATP synthesis?
2 out glycosis and 2 out of the Krebs cycle= 4
is 4 ATP a big pay off?
no
where do all NADH and FADH2 go into?
ETS
what isthe final result of ATP in ATP synthesis?
36 ATP from one molecule of glucose (big payoff)
can we use lipids to generate ATP?
yes but there’s a price to pay
why is there a price to pay if we use lipids to generate ATP?
we need to do some conversions first and ketones are acidic and can alter pH
can we use amino acids to generate ATP?
yes but will also produce ketones acanhs garbage
can we convert amino acids or fatty acids into glucose?
yes with gluconegenesis
what organ can do gluconeogenesis?
the liver
changing one biomolecular group into another
nutrient molecule interconversions
organic molecules that exist in very small quantities in food
vitamins
