Biochemistry - General Biology - Biotechnology Previous Year Questions

1

2013 · Biotechnology · General Biology · Biochemistry

Biotechnology (BT) 2013

Which one of the following aminoacids in proteins does NOT undergo phosphorylation?

A

Ser

B

Thr

C

Pro

D

Tyr

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2

2013 · Biotechnology · General Biology · Biochemistry

Biotechnology (BT) 2013

Match the entries in Group I with the enzymes in Group II.

Group I	Group II
P. NAD+	1. Glutathione peroxidase
Q. Selenium	2. Nitrogenase
R. Pyridoxal phosphate	3. Lactate dehydrogenase
S. Molybdenum	4. Glycogen phosphorylase

A

P-3, Q-2, R-4, S-1

B

P-4, Q-1, R-3, S-2

C

P-3, Q-1, R-4, S-2

D

P-3, Q-4, R-2, S-1

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3

2013 · Biotechnology · General Biology · Biochemistry

Biotechnology (BT) 2013

The number of molecules present in this solution is

A

\(40.15 \times 10^{19}\)

B

\(6.023 \times 10^{19}\)

C

\(4.015 \times 10^{19}\)

D

\(0.08 \times 10^{19}\)

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4

2013 · Biotechnology · General Biology · Biochemistry

Biotechnology (BT) 2013

Mahatma Gandhi was known for his humility as

A

he played an important role in humiliating exit of British from India.

B

he worked for humanitarian causes.

C

he displayed modesty in his interactions.

D

he was a fine human being.

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5

2014 · Biotechnology · General Biology · Biochemistry

Biotechnology (BT) 2014

The percentage SIMILARITIES and IDENTITIES, respectively, between the two peptide sequences given below will be _____% and _____%.
Peptide I : Ala-Ala-Arg-Arg-Gln-Trp-Leu-Thr-Phe-Thr-Lys-Ile-Met-Ser-Glu
Peptide II: Ala-Ala-Arg-Glu-Gln-Tyr-Ile-Ser-Phe-Thr-Lys-Ile-Met-Arg-Asp

A

80, 80

B

80, 60

C

60, 60

D

90, 60

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6

2012 · Biotechnology · General Biology · Biochemistry

Biotechnology (BT) 2012

During photorespiration under low CO₂ and high O₂ levels, O₂ reacts with ribulose 1,5- bisphosphate to yield

A

one molecule each of 3-phosphoglycerate and 2-phosphoglycolate

B

two molecules of 3-phosphoglycerate

C

two molecules of 2-phosphoglycolate

D

one molecule each of 3-phosphoglycerate and glyoxylate

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7

2012 · Biotechnology · General Biology · Biochemistry

Biotechnology (BT) 2012

Match the vitamins in Group I with the processes/reactions in Group II.

Group I	Group II
P. Pantothenic acid	1. Electron transport
Q. Vitamin B2	2. Transfer of 1-C units
R. Vitamin B6	3. Decarboxylation
S. Folic acid	4. Fatty acid metabolism
	5. Hydrolysis

A

P-5, Q-2, R-4, S-1

B

P-4, Q-1, R-3, S-2

C

P-4, Q-2, R-1, S-3

D

P-2, Q-1, R-3, S-5

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