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3S - Biochem Lec > Quiz on Biosynthetic Pathways > Flashcards

Quiz on Biosynthetic Pathways Flashcards

1
Q

Gluconeogenesis Steps (After Pyruvate)

What is the 1st step?

a. Conversion to oxaloacetate
b. Conversion to phosphoenolpyruvate
c. Conversion to fructose 1,6-bisphosphate
d. Conversion to fructose 6-phosphate
e. Conversion to glucose 6-phosphate
f. Conversion to glucose

A

a

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2
Q

Gluconeogenesis Steps (After Pyruvate)

What is the 2nd step?

a. Conversion to oxaloacetate
b. Conversion to phosphoenolpyruvate
c. Conversion to fructose 1,6-bisphosphate
d. Conversion to fructose 6-phosphate
e. Conversion to glucose 6-phosphate
f. Conversion to glucose

A

Conversion to phosphoenolpyruvate

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3
Q

Gluconeogenesis Steps (After Pyruvate)

What is the 3rd step?

a. Conversion to oxaloacetate
b. Conversion to phosphoenolpyruvate
c. Conversion to fructose 1,6-bisphosphate
d. Conversion to fructose 6-phosphate
e. Conversion to glucose 6-phosphate
f. Conversion to glucose

A

Conversion to fructose 1,6-bisphosphate

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4
Q

Gluconeogenesis Steps (After Pyruvate)

What is the 4th step?

a. Conversion to oxaloacetate
b. Conversion to phosphoenolpyruvate
c. Conversion to fructose 1,6-bisphosphate
d. Conversion to fructose 6-phosphate
e. Conversion to glucose 6-phosphate
f. Conversion to glucose

A

Conversion to fructose 6-phosphate

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5
Q

Gluconeogenesis Steps (After Pyruvate)

What is the 5th step?

a. Conversion to oxaloacetate
b. Conversion to phosphoenolpyruvate
c. Conversion to fructose 1,6-bisphosphate
d. Conversion to fructose 6-phosphate
e. Conversion to glucose 6-phosphate
f. Conversion to glucose

A

Conversion to glucose 6-phosphate

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6
Q

Gluconeogenesis Steps (After Pyruvate)

What is the 6th step?

a. Conversion to oxaloacetate
b. Conversion to phosphoenolpyruvate
c. Conversion to fructose 1,6-bisphosphate
d. Conversion to fructose 6-phosphate
e. Conversion to glucose 6-phosphate
f. Conversion to glucose

A

Conversion to glucose

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7
Q

Steps in Fatty Acid Biosynthesis (after putting acetyl-CoA and acyl carrier protein together):

What is the 1st step?

a. Conversion to acetyl-ACP
b. Conversion to acetyl-synthase intermediate
c. Conversion to acetoacetyl-ACP
d. Conversion to butyryl-ACP
e. Conversion to hexanoyl-ACP
f. Conversion to palmitic acid
g. Conversion to stearic acid (for additional carbon fragment)

A

Conversion to acetyl-ACP

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8
Q

Steps in Fatty Acid Biosynthesis (after putting acetyl-CoA and acyl carrier protein together):

What is the 2nd step?

a. Conversion to acetyl-ACP
b. Conversion to acetyl-synthase intermediate
c. Conversion to acetoacetyl-ACP
d. Conversion to butyryl-ACP
e. Conversion to hexanoyl-ACP
f. Conversion to palmitic acid
g. Conversion to stearic acid (for additional carbon fragment)

A

b

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9
Q

Steps in Fatty Acid Biosynthesis (after putting acetyl-CoA and acyl carrier protein together):

What is the 3rd step?

a. Conversion to acetyl-ACP
b. Conversion to acetyl-synthase intermediate
c. Conversion to acetoacetyl-ACP
d. Conversion to butyryl-ACP
e. Conversion to hexanoyl-ACP
f. Conversion to palmitic acid
g. Conversion to stearic acid (for additional carbon fragment)

A

c

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10
Q

Steps in Fatty Acid Biosynthesis (after putting acetyl-CoA and acyl carrier protein together):

What is the 4th step?

a. Conversion to acetyl-ACP
b. Conversion to acetyl-synthase intermediate
c. Conversion to acetoacetyl-ACP
d. Conversion to butyryl-ACP
e. Conversion to hexanoyl-ACP
f. Conversion to palmitic acid
g. Conversion to stearic acid (for additional carbon fragment)

A

d

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11
Q

Steps in Fatty Acid Biosynthesis (after putting acetyl-CoA and acyl carrier protein together):

What is the 5th step?

a. Conversion to acetyl-ACP
b. Conversion to acetyl-synthase intermediate
c. Conversion to acetoacetyl-ACP
d. Conversion to butyryl-ACP
e. Conversion to hexanoyl-ACP
f. Conversion to palmitic acid
g. Conversion to stearic acid (for additional carbon fragment)

A

e

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12
Q

Steps in Fatty Acid Biosynthesis (after putting acetyl-CoA and acyl carrier protein together):

What is the 6t step?

a. Conversion to acetyl-ACP
b. Conversion to acetyl-synthase intermediate
c. Conversion to acetoacetyl-ACP
d. Conversion to butyryl-ACP
e. Conversion to hexanoyl-ACP
f. Conversion to palmitic acid
g. Conversion to stearic acid (for additional carbon fragment)

A

f

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13
Q

Steps in Fatty Acid Biosynthesis (after putting acetyl-CoA and acyl carrier protein together):

What is the 7th step?

a. Conversion to acetyl-ACP
b. Conversion to acetyl-synthase intermediate
c. Conversion to acetoacetyl-ACP
d. Conversion to butyryl-ACP
e. Conversion to hexanoyl-ACP
f. Conversion to palmitic acid
g. Conversion to stearic acid (for additional carbon fragment)

A

g

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14
Q

Cholesterol Synthesis (after 3 moles of acetyl-CoA)

What is the 1st step?

a. Conversion to 3-hydroxy-3-methylglutaryl-CoA
b. Conversion to mevalonate
c. Conversion to isopentenyl pyrophosphate
d. Conversion to geranyl pyrophosphate
e. Conversion to farnesyl pyrophosphate

A

a

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15
Q

Cholesterol Synthesis (after 3 moles of acetyl-CoA)

What is the 2nd step?

a. Conversion to 3-hydroxy-3-methylglutaryl-CoA
b. Conversion to mevalonate
c. Conversion to isopentenyl pyrophosphate
d. Conversion to geranyl pyrophosphate
e. Conversion to farnesyl pyrophosphate

A

b

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16
Q

Cholesterol Synthesis (after 3 moles of acetyl-CoA)

What is the 3rd step?

a. Conversion to 3-hydroxy-3-methylglutaryl-CoA
b. Conversion to mevalonate
c. Conversion to isopentenyl pyrophosphate
d. Conversion to geranyl pyrophosphate
e. Conversion to farnesyl pyrophosphate

17
Q

Cholesterol Synthesis (after 3 moles of acetyl-CoA)

What is the 4th step?

a. Conversion to 3-hydroxy-3-methylglutaryl-CoA
b. Conversion to mevalonate
c. Conversion to isopentenyl pyrophosphate
d. Conversion to geranyl pyrophosphate
e. Conversion to farnesyl pyrophosphate

18
Q

Cholesterol Synthesis (after 3 moles of acetyl-CoA)

What is the 5t step?

a. Conversion to 3-hydroxy-3-methylglutaryl-CoA
b. Conversion to mevalonate
c. Conversion to isopentenyl pyrophosphate
d. Conversion to geranyl pyrophosphate
e. Conversion to farnesyl pyrophosphate

19
Q

Choose the precursor / starting material for the synthesis of the following amino acids:

Trypthophan

a. Phosphoenolpyruvate
b. Aspartate
c. Acetyl-CoA
d. Pyruvate
e. Glutamate

20
Q

Choose the precursor / starting material for the synthesis of the following amino acids:

Threonine

a. Phosphoenolpyruvate
b. Aspartate
c. Acetyl-CoA
d. Pyruvate
e. Glutamate

21
Q

Choose the precursor / starting material for the synthesis of the following amino acids:

Leucine

a. Phosphoenolpyruvate
b. Aspartate
c. Acetyl-CoA
d. Pyruvate
e. Glutamate

22
Q

Choose the precursor / starting material for the synthesis of the following amino acids:

Valine

a. Phosphoenolpyruvate
b. Aspartate
c. Acetyl-CoA
d. Pyruvate
e. Glutamate

23
Q

Choose the precursor / starting material for the synthesis of the following amino acids:

Proline

a. Phosphoenolpyruvate
b. Aspartate
c. Acetyl-CoA
d. Pyruvate
e. Glutamate

24
Q

Identify 2 starting materials that are required for membrane lipid synthesis.

Glycerol-1-phosphate
Glucose-6-phosphate
Acyl-CoA
Cholesterol

A

Glycerol-1-phosphate
Acyl-CoA

3S - Biochem Lec (7 decks)

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