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Biochemistry
Biochemistry Assessment
Quiz 1
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Q.1
Protein that contains a nucleic acid derivative of riboflavin is called _________
a) Nucleic acid
b) Amino acid
c) Flavoprotein
d) None
Q.2
NADP-linked dehydrogenase catalyzes _________
a) Glucose 6-phosphate+NADP+ ↔ 6-phosphogluconate + NADPH + H+
b) Lactate + NAD+ ↔ pyruvate + NADH + H+
c) Pyruvate + CoA + NAD+ ↔ acetyl-CoA + CO2 + NADH + H+
d) L-Malate + NAD+ ↔ oxaloacetate + NADH + H+
Q.3
A lipid-soluble benzoquinone with a long isoprenoid side chain is?
a) Ubiquinone
b) Cytochrome b
c) Cytochrome c
d) Cytochrome a
Q.4
The only membrane bound enzyme in the citric acid cycle is _________
a) Succinate dehydrogenase
b) NADH dehydrogenase
c) ATP synthase
d) Acyl co-A dehydrogenase
Q.5
The first step in the β oxidation of fatty acyl co-A is catalyzed by _________
a) Succinate dehydrogenase
b) NADH dehydrogenase
c) ATP synthase
d) Acyl co-A dehydrogenase
Q.6
Complex 1 is also called _________
a) NADH dehydrogenase
b) Succinate dehydrogenase
c) Cytochrome bc1 complex
d) Cytochrome oxidase
Q.7
Complex 2 is also called _________
a) NADH dehydrogenase
b) Succinate dehydrogenase
c) Cytochrome bc1 complex
d) Cytochrome oxidase
Q.8
Complex 3 is also called _________
a) NADH dehydrogenase
b) Succinate dehydrogenase
c) Cytochrome bc1 complex
d) Cytochrome oxidase
Q.9
Complex 4 is also called _________
a) NADH dehydrogenase
b) Succinate dehydrogenase
c) Cytochrome bc1 complex
d) Cytochrome oxidase
Q.10
In mitochondria, hydride ions are removed from substrates by _________
a) NAD-linked dehydrogenases
b) NADP-linked dehydrogenases
c) ATP synthase
d) Succinate dehydrogenases
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