Overall Things I Keep Getting Wrong Flashcards

1
Q

Mnemonic for heme sythesis

A

Ala pros hyd meth under corporations power houses

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2
Q

Where does lead poisoning act

A

It inhibits
Ala dehydratase enzyme so you’ll have a build up of ala

And
Ferrochelatase

Competes with ca2+

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3
Q

What does glycogen phosphorylase need

A

PLP

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4
Q

Which end of glycogen does glycogen phosphorylase attack

A

Non reducing end

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5
Q

Glycogen phosphorylase when its phosphorylated

A

ACTIVE
FAST state

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6
Q

Glycogen synthase when its NOT phosphorylated

A

ACTIVE
FED state

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7
Q

Symptoms of acute intermittent porphyria

A

5 P’s
Painful abdomen
Port wine urin
Polyneuropathy
Psychological disturbances
Precipitated by drugs alcohol and starvation

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8
Q

How do you treat AIP

A

Glucose and heme

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9
Q

Most common porphyria inhibits what enzyme

A

Uroporphyrinogen decarboxylase

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10
Q

What path is G6P dehydrogenase apart of

A

PPP

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11
Q

Malate to OAA makes and conversely

A

NADH

OAA to malate uses NADH

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12
Q

What pathway is pyruvate dehydrogenase in/ what does it do

A

Pyruvate——>Acetyl CoA

TCA

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13
Q

What pathway is pyruvate carboxylase apart of what does it do

A

Pyruvate —>OAA
TCA
GNG

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14
Q

What does pyruvate carboxylase need with it

A

CO2
ATP
Biotin

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15
Q

Alanine aminotransferase does what and where

A

Pyruvate<—>alanine
Cytoplasm

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16
Q

Acetyl can go to make

A

FA
Cholesterol
TCA cycle

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17
Q

Pyruvate<-?->lactate
Where

A

Lactate dehydrogenase
Cytoplasm
RBC
During strenous muscle activity

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18
Q

What does pyruvate<—>lactate make

A

regenerates NAD+

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19
Q

what can inhibit pyruvate dehydrogenase

A

NADH from FA

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20
Q

First barrier to cross in GNG all the enzyme names

A

Pyruvate —pyruvate carboxylase—> OAA

OAA —PEP carboxykinase—>PEP

If it goes

pyruvate > OAA —malate dehydrogenase—> malate

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21
Q

Fructose 1,6 bisphosphate -?-> fructose 6 phosphate

And vice versa

A

Fructose 1,6 bisphosphatase

PFK1

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22
Q

Glucose 6 phosphate -?-> glucose

And vice versa

A

Glucose 6 phosphatase

Hexokinase/glucokinase

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23
Q

Glucose 6 phosphatase and fructose 1,6 bisphosphatase are both

A

Inducible by glucagon

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24
Q

Glucose 6 phosphatase is used where

A

GNG and glycogen pathway

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25
Tyrosine effects with def in dihydrobiopterin reductase or dihydrobiopterin synthetase
Decreased catecholamines
26
Tyrptophan effects with def in dihydrobiopterin reductase or dihydrobiopterin synthetase
Decreased serotonin
27
Trigger for all alcohol problems
Excess NADH
28
How does NADH inhibit TCA cycle
Inhibits is citrate dehydrogenase And Inhibits α-ΚG dehydrogenase And It favors the production of Malate NOT OAA
29
When NADH is high from drinking which does it favor OAA or Malate What does this result in
Malate Results in decreased GNG = hypoglycemia
30
Why do alcoholics have lactic acidosis
Bc their body has way too much NADH so it needs to regenerate more NAD+. IT does this by utilizing pyruvate>lactate path bc this takes NADH and makes NAD+. The result is a ton of lactate
31
What is an activator of acetyl CoA carboxylase and what does it do
Citrate is an activator Acetyl-CoA —-acetyl CoA Carboxylase—> malonyl CoA—— β oxidation
32
What does insulin do in the adipose tissue
Dephosphorylation of pyruvate dehydrogenase and lipase in adipose tissue
33
What does insulin do in muscle
Dephosphorylates glycogen synthase and glycogen phosphorylase
34
Glycolysis RLE
PFK1
35
GNG RLE
Fructose 1,6 bisphosphatase
36
TCA RLE
Isocitrate dehydrogenase
37
Glycogen synthesis RLE
Glycogen synthase
38
glycogenolysis RLE
Glycogen phosphorylase
39
HMP shunt RLE
Glucose 6 phosphate dehydrogenase (G6PD)
40
De novo pyrimidine sythesis RLE
Carbamoyl phosphate synthetase II
41
De novo purine sythesis RLE
Glutamine PRPP amidotransferase Aka AMIDOPHOSPHORIBOSYL transferase
42
Urea cycle RLE
Carbamoyl phosphate synthetase I
43
Fatty acid sythesis RLE
Acetyl CoA carboxylase (ACC)
44
Fatty acid oxidation RLE
Carnitine acyltransferase I
45
Ketogenesis RLE
HMG CoA synthetase During ketogenesis you can have a lot of KiSs chocolate
46
Cholesterol sythesis RLE
HMG CoA reductase She you make a lot of cholesterol you’re fat and angry and you “see (C) Red”
47
β cells release what vs α cells
β = insulin α = glucagon Glucagon has an a so glucagon is alpha
48
When you’re fasting what is increasing
Glucagon Triglyceride hydrolysis Glycogen degration GNG KB production Release of AA
49
When you are fed what is being synthesized
Triglycerides Glycogen FA VLDL Protein - replenish any protein degraded during previous post absorptive period
50
When you see insulin think
DEPHOSPHORYLATION by activating phosphatase
51
Which enzymes does insulin work INdirectly on what do they do
PFK2 and fructose 2,6bisphosphatase Increases level of fructose 2,6 bisphosphate which activates PFK1 and continues glycolysis
52
When you see glucagon think
PHOSPHORYLATION by PKA (protein kinase)
53
What are they key enzymes glucagon phosphorylates
Pyruvate kinase Glycogen sythase Glycogen phosphorylase Acetly CoA carboxylase
54
What + activates PEP>Pyruvate
Fructose 1,6 bisphosphate
55
What do insulin and glucagon act on in β oxidation
Hormone sensitive lipase
56
glucagon receptor is what and what does it do
G protein coupled receptor Increases adenylate cyclase Which turns ATP to cAMP Which activates kinase a Which PHOSPHORYLATES
57
Insulin receptor is what and what does it do
Tyrosine kinase receptor It triggers protein phosphatases Which will DEPHOSPHORYLATE
58
What are all the enzymes in FA synthesis insulin induces and which are the ones that have a special function
Malic enzyme - NADPH G6PDH - increase NADPH FA sythase Acetly CoA carboxylase Citrate lyase
59
LPL in response to insulin and glucagon and why
Insulin increases it in adipose BC we want to break down triglycerides into FA for storage Glucagon decreases it in adipose BC we don’t want that
60
Fight of flight in the liver vs skeletal muscle
Liver will have phosphorylation of PFK2 and F2,6bisphosphatase. The result is to decrease glycolysis here and increase GNG. Muscle will have phosphorylation of PFK2 and F2,6 bisphosphatase. This will result in an increase of glycolysis here.