Exam (elaborations)
Bio 219 Exam 1 Questions And Answers Latest Update
- Course
- BIO 219
- Institution
- Purdue University
Bio 219 Exam 1 Questions And Answers Latest Update
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Bio 219 Exam 1 Questions AndAnswers Latest Update
Match the energy carrier to its mechanism.
Gains / loses an electron in the form of hydrogen
NAD+/NADH
Addition / removal of phosphates
ADP/ATP
created via reduction of carbon dioxide
Glucose
addition / removal of carbons
Acetyl-CoA
Which of these provides energy to ATP synthase?
H+ ion gradient
,ATP Synthase uses a hydrogen ion gradient to _________
induce allostery.
ATP Synthase rotates through allosteric conformations to generate ______
ATP
Light energy is used to remove an electron (in the form of hydrogen) from water.
This occurs in which process?
Chloroplast ETC
Why do plants make ATP via the light reactions?
They are co-evolved with animals that need glucose
They need to power their own ability to make glucose
They use ATP in their own reactions
All of these are true.
All of these are true.
In the chloroplast, photosynthesis yields __________
O2, ATP, and NADPH.
,Which of these statements is NOT TRUE of enzymes?
All enzymes are couplers
Enzymes can be regulated allosterically.
Enzymes stabilize the transition state
Enzymes can have more than one binding site for substrates or regulators.
All enzymes are couplers
How are these steps regulated? How does this cell keep a proper ratio of
glucose:ATP:NADPH ?
allosteric activators: CO2, ATP
allosteric inhibitors: O2, G3P
Allosteric regulation for substrates/reactant
allosteric activators
Allosteric regulation for products
allosteric inhibitors
Which of these is mostly likely to be the units for Vmax?
uMol/minute
, True or False
Km = 1/2VMax
false
Which of these represents the point on a Michaelis-Menten curve where all
enzymes can quickly find a substrate?
Vmax
What is the relationship between Km and binding affinity?
///
Cells regulate reaction rates by:
Changing the concentration of substrates or products available.
Allosterically regulating the enzyme.
Using the same enzyme in competing reactions.
True or False, Cellular reactions are inherently fast.
false
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