Bio 4 Flashcards
what is the process of converting DNA into mNRA
transcription
what is the purpose of converting DNA into polypeptides
translation
what is the difference between transcription and translation
DNA –> mNRA –> polypetide
–> 1 = transcription
–> 2 = translation
what does DNA need to be translated
because the body can’t read it in that system, so mNRA reads DNA from 3’ to 5’ and translates it from 5’ to 3’ in the opposite structure
what are proteins
folded amino acid chains
what do enzymes end in (but not all e.g. pepsin)
-ase
what do enzymes do
catalyse and decrease the activation energy
draw an energy profile diagram
what happens to an enzyme as temperature changes
lower = dormant
correct = small window where it can function
higher = denature (irreversible)
what happens to an enzyme as pH changes
has an optimum range
too low = acidic = denature
too high = alkaline/basic = denature
in a flow diagram, if we have a pathway with two negative values e.g. A decr B which decr F then what happens to F
F will actually increase because we are decr the decr of B
where does the krebs cycle happen
in the mitochondria
what produces the most energy & where does it occur
the electron transport chain (which also occurs in the mitochondria)
where do plants get energy & is it an additional step to ATP/mitochondria
yes they have human systems + photosynthesis via UV light
what do plants convert CO2 to
glucose (we use glucose to create energy but they create it)
