Sep_2022_Shift_1_CSIR_NET_LS_Question_Paper_With_Answer_Key.pdf
1.8 MB
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#Q5 Which of the following bonds will be most difficult to break ?
Anonymous Quiz
40%
C – O
15%
C – P
33%
C – N
11%
C – S
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#Q6 The solubility of NaCl is greater in water than ethanol. What physical property of the solvent governs this difference ?
Anonymous Quiz
12%
Surface tension
19%
Viscosity
63%
Dielectric constant
6%
Boiling point
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Dear friends today quiz will be held in our telegram group @ifasemotionbatch6 at 12:30 PM. Total 30 questions - from cell signalling, cancer and Immunoogy. Thanks
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#Q7 The -COOH group of cellular amino acids can form which of the following bonds inside the cell ?
Anonymous Quiz
14%
Ether and ester bonds
32%
Ester and amide bonds
21%
Amide and ether bonds
33%
Amide and carboxylic anhydride bonds
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#Q8 Which one of the following small molecule neurotransmitters is NOT synthesized from tyrosine ?
Anonymous Quiz
7%
Epinephrine
29%
Dopamine
52%
Serotonin
13%
Norepinephrine
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Sep_2022_Shift_2_CSIR_NET_LS_Question_Paper_With_Answer_Key.pdf
1.6 MB
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#Q9 Which one of the following statements is correct ?
Anonymous Quiz
15%
In all L-amino acids, only the Cα carbon atom is chiral
12%
Deoxyribose is optically inactive
52%
The specific rotation of sucrose will be the sum of the specific rotations of D- glucose and fructos
21%
Phosphatidyl choline isolated from biological membranes is optically active
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Feb_2022_Shift_1_CSIR_NET_LS_Question_Paper_With_Answer_Key.pdf
1.7 MB
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#Q10 Which statement best describes the pKa of amino groups in proteins ?
Anonymous Quiz
24%
pKa of α-amino group is higher than the pKa of ε-amino. group.
38%
pKa of α-amino group is lower than the pKa of ε-amino group.
13%
pKa of α-amino group is same as the pKa of ε -amino group.
24%
pKa of α-amino group is higher than the pKa of guanidine side chain of arginine.
#Q11 Which one of the following options represent a series of the amino acids with the decreasing pka values of their side chain ?
Anonymous Quiz
33%
Arg Lys Cys His
33%
Lys Arg Cys His
25%
Lys Arg His Cys
9%
Arg Cys Lys His
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#Q12 What is the net charge of the peptide Tyr-Val-Arg at pH 5.0? The pKas of alpha amino and carboxyl groups are 9.6 and 2.3, respectively. The pKas of Tyr and Arg side chains are 10.46 and 12.48, respectively
Anonymous Quiz
24%
1.0
27%
5
41%
2.5
9%
11
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Feb_2022_Shift_2_CSIR_NET_LS_Question_Paper_With_Answer_Key.pdf
1.3 MB
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#Q13 Which one of the following pair of amino acids are glucogenic and ketogenic in nature ?
Anonymous Quiz
13%
Alanine and Lysine
28%
Lysine and Leucine
51%
Isoleucine and Phenylalanine
8%
Aspartate and Lysine
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Dear friends! 👋
Today’s Mega Quiz will be held at 11:00 🕐 Now
Telegram Quiz Group: @ifasemotionbatch6
Total 30 questions from Methods in Biology 🧬🔬
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Thanks ❤️
Today’s Mega Quiz will be held at 11:00 🕐 Now
Telegram Quiz Group: @ifasemotionbatch6
Total 30 questions from Methods in Biology 🧬🔬
Get ready and see you there! 🚀
Thanks ❤️
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Nov_2020_Shift_1_CSIR_NET_LS_Question_Paper_With_Answer_Key.pdf
1.5 MB
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#Q15 Several proteins are modified by phosphorylation at specific amino acid residues to alter their activities. Which one of the following amino acids is NOT typically a site of phosphorylation in proteins ?
Anonymous Quiz
37%
Lysine
18%
Serine
29%
Threonine
16%
Tyrosine
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#Q16 Which among the following is the simplest method to estimate the concentration of glycerol in an aqueous solution of glycerol ?
Anonymous Quiz
28%
UV absorption spectroscopy
19%
Gas chromatography
13%
pH measurement
41%
Viscosity measurement
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#Q17 Chirality of DNA is due to
Anonymous Quiz
9%
the bases
22%
base stacking
43%
hydrogen bonds between bases
27%
deoxyribose
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