At neutral pH Alanine has the following structure: (A) − − 2 3 H H N C COOH CH (B) + 3 − − 3 H H N C COO CH (C) 2 − − 3 H H N C COO CH (D) + 2 − − 3 H H N C COO CH

At neutral pH Alanine has the following structure: (A) − − 2 3 H H N C COOH CH (B) + 3 − − 3 H H N C COO CH (C) 2 − − 3 H H N C COO CH (D) + 2 − − 3 H H N C COO CH
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Answer : B
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In the following reaction, Alanine acts as a 3 3 3 3 + + → H H | | H N – – COO —— H N – – COOH C C | | CH CH (A) Acid (B) Base (C) Zwitter ion (D) None of these

Description : In the following reaction, Alanine acts as a 3 3 3 3 + + → H H | | H N – – COO —— H N – – COOH C C | | CH CH (A) Acid (B) Base (C) Zwitter ion (D) None of these

Last Answer : Answer : C

How many geometrical isomers are possible for the given compound? Ph-CH=CH-CH=CH-COOH

Description : How many geometrical isomers are possible for the given compound? Ph-CH=CH-CH=CH-COOH

Last Answer : How many geometrical isomers are possible for the given compound? Ph-CH=CH-CH=CH-COOH A. 2 B. 4 C. 6 D. 8

The racemic mixture of Alanine `(CH_(3)-underset(NH_(2))underset(|)(C )H-COOH)` can be resolved by using, (1) (+) -2-Butanol (2) (l)-2-Chlorobutanoic

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Last Answer : The racemic mixture of Alanine `(CH_(3)-underset(NH_(2))underset(|)(C )H-COOH)` can be resolved by using, (1) ... 3 only C. 2 & 4 only D. 3 & 4 only

The figure shows a hypothetical tetrapeptide portion of a protein with parts labelled A-D. Which one of the following options is correct? – HN – CH – CO – NH – CH – CO – NH – CH – CO – HN – CH – CO – CH2 OH CH2 SH CH2 OH CH2 CH2 CH2– COOH A B C D (a) D is the acidic amino acid-glutamic acid. (b) C is an aromatic amino acid-tryptophan. (c) A is the C-terminal amino acid and D is N-terminal amino acid. (d) A is a sulphur containing amino acid methionine.

Description : The figure shows a hypothetical tetrapeptide portion of a protein with parts labelled A-D. Which one of the following options is correct? - HN - CH - CO - NH - CH - CO - NH - CH - CO - ... -terminal amino acid and D is N-terminal amino acid. (d) A is a sulphur containing amino acid methionine.

Last Answer : (a) D is the acidic amino acid-glutamic acid.

An amino acid not containing the usual— COOH group is (A) Alanine (B) Tryptophan (C) Methionine (D) Taurine

Description : An amino acid not containing the usual— COOH group is (A) Alanine (B) Tryptophan (C) Methionine (D) Taurine

Last Answer : Answer : D

The compound having the formula H2N—CO—NH—CH2—CH2—CH2—CH— COOH is | NH2 (A) Lysine (B) Glutamine (C) Serine (D) Citrulline

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Last Answer : Answer : D

Cysteine has the formula: (A) CH3SH (B) H2N—CH2—COOH (C) HS—CH2—CH(NH2)—COOH (D) S—CH2—CH(NH2)—COOH | S—CH2—CH(NH2)—COOH

Description : Cysteine has the formula: (A) CH3SH (B) H2N—CH2—COOH (C) HS—CH2—CH(NH2)—COOH (D) S—CH2—CH(NH2)—COOH | S—CH2—CH(NH2)—COOH

Last Answer : Answer : C

`CH_(3)CH_(2)-CH_(2)-COOH overset("Red + P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH` This reaction is called

Description : `CH_(3)CH_(2)-CH_(2)-COOH overset("Red + P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH` This reaction is called

Last Answer : `CH_(3)CH_(2)-CH_(2)-COOH overset("Red + P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH` This reaction is called

`CH_(3)CH_(2)-CH_(2)-COOH overset("Red + P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH` This reaction is called

Description : `CH_(3)CH_(2)-CH_(2)-COOH overset("Red + P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH` This reaction is called

Last Answer : `CH_(3)CH_(2)-CH_(2)-COOH overset("Red + P" +Br_(2))toCH_(3)-CH_(2)-underset(Br)underset(|)(CH)-COOH` This reaction is called

`Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Description : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Last Answer : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) ... -underset(O)underset(||)(C)-CH=CH-CH_(2)-CH_(3)`

`Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Description : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Last Answer : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) ... -underset(O)underset(||)(C)-CH=CH-CH_(2)-CH_(3)`

Name the given reaction and enzyme involved in it `underset("Amino donor")(R_(1)-underset(NH_(3)^(+))underset(|)overset(H)overset(|)(C)-COO^(-)+unders

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Last Answer : Name the given reaction and enzyme involved in it `underset("Amino donor")(R_(1)-underset(NH_(3)^(+)) ... underset(|)overset(H)overset(|)(C)-COO^(-)`

The amino acid which has a pK near 4 and thus is negatively charged at pH 7 is (A) Alanine (B) Glutamic acid (C) Glutamine (D) Aspargine

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Last Answer : Answer : B

pH (isoelectric pH) of alanine is (A) 6.02 (B) 6.6 (C) 6.8 (D) 7.2

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Last Answer : Answer : A

pH (isoelectric pH) of alanine is (A) 6.02 (B) 6.6 (C) 6.8 (D) 7.2

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Last Answer : (A) 6.02

Consider a hash table of size m=100 and the hash function h(k) = floor(m(kA mod 1)) for A = (√5 − 1)/2 = 0.618033. Compute the location to which the key k = 123456 is placed in hash table. (A) 77 (B) 82 (C) 88 (D) 89

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The logistic population growth is expressed by the equation (a) dt / dN = Nr K N K  −      (b) dN / dt = rN K N K  −      (c) dN / dt = rN (d) dN / dt = rN N K N  −    

Description : The logistic population growth is expressed by the equation (a) dt / dN = Nr K N K  −      (b) dN / dt = rN K N K  −      (c) dN / dt = rN (d) dN / dt = rN N K N  −    

Last Answer : (b) dN / dt = rN K N K  −   

What is the trade name of H-COOH ?

Description : What is the trade name of H-COOH ?

Last Answer : H-COOH 's trade name is formic acid.

Mercaptans is represented as (where R and R' are alkyl groups) (A) R-COOH (B) R-S-H (C) R-S-R (D) R-S-R'

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Last Answer : (B) R-S-H

In purine biosynthesis carbon atoms at 4 and 5 position and N at 7 position are contributed by (A) Glycine (B) Glutamine (C) Alanine (D) Threonine

Description : In purine biosynthesis carbon atoms at 4 and 5 position and N at 7 position are contributed by (A) Glycine (B) Glutamine (C) Alanine (D) Threonine

Last Answer : Answer : A

The first amino acid incorporated in a polypeptide in a ribosome of a human is (A) N formyl methionine (B) Methionine (C) Phenyl alanine (D) Hydroxy lysine

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Last Answer : Answer : B

Which of the following is a palindromic sequence (A) (B) ′ ′ − − ′ ′ − − 5 ATGCAG 3 3 TACGTC 5 (C) (D) ′ ′ − − ′ ′ − − 5 CGAAGC 3 3 GCTTCG 5

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Last Answer : Answer : C

An alcohol on oxidation is found to given `CH_(3)COOH` and `CH_(3)CH_(2)COOH`. The structure of the alcohol is

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Maximum enzyme activity is observed at (A) Acidic pH (B) Neutral pH (C) Basic pH (D) Optimum pH

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Last Answer : Answer : D

Isoelectric pH is that pH at which protein is electrically: (A) Neutral (B) Anionic (C) Cationic (D) None of these

Description : Isoelectric pH is that pH at which protein is electrically: (A) Neutral (B) Anionic (C) Cationic (D) None of these

Last Answer : Answer : A

This technique takes the advantage of the fact that each protein has different pH at which it is electrically neutral i.e., its isoelectric pH: (A) Isoelectric focussing (B) Immunoel Ectro Phoresis (C) Chromatography (D) HPLC

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Last Answer : Answer : A

A hexa peptide with 5 aspartic acid would have a net charge at pH 7: (A) Neutral (B) Positive (C) Negative (D) Not predictable

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Last Answer : Answer : C

When amino acids are treated with neutral formaldehyde, the pH of the mixture (A) Is not altered (B) Increases (C) Decreases (D) First increases then decreases

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Last Answer : Answer : C

At neutral pH, a mixture of amino acids in solution would be predominantly: (A) Dipolar ions (B) Nonpolar molecules (C) Positive and monovalent (D) Hydrophobic

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Last Answer : Answer : A

At neutral pH, a mixture of amino acids in solution would be predominantly: (A) Dipolar ions (B) Nonpolar molecules (C) Positive and monovalent (D) Hydrophobic

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Last Answer : (A) Dipolar ions

How many of the following will give 2,4-DNP test. `1.CH_(3)CH=O " " (2) CH_(3)-overset(O)overset(||)(C)-CH_3 " " (3) Ph-CH=O " " (4) Ph-overset(O)over

Description : How many of the following will give 2,4-DNP test. `1.CH_(3)CH=O " " (2) CH_(3)-overset(O)overset(||)(C)-CH_3 " " (3) Ph-CH=O " " (4) Ph-overset(O)over

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The product P of the following reaction is `CH_(3)-COOH overset(LiAlH_(4))to overset(SOCl_(2))to overset(Koverset(14)(C)N)to overset(H_(3)O^(o+)) to P

Description : The product P of the following reaction is `CH_(3)-COOH overset(LiAlH_(4))to overset(SOCl_(2))to overset(Koverset(14)(C)N)to overset(H_(3)O^(o+)) to P

Last Answer : The product P of the following reaction is `CH_(3)-COOH overset(LiAlH_(4))to overset(SOCl_(2))to overset(Koverset ... )N)to overset(H_(3)O^(o+)) to P`

The product P of the following reaction is `CH_(3)-COOH overset(LiAlH_(4))to overset(SOCl_(2))to overset(Koverset(14)(C)N)to overset(H_(3)O^(o+)) to P

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What is the difference between a CEO, COO, and CFO?

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Last Answer : answer:Hi occ! I am guessing you want to know what it is they typically do. First, let's get the terms down. CEO is the Chief Executive Officer. Their responsibilities ... Exchange Commission). CTO is the Chief Technology Officer. Responsible for developing and implementing technology strategy.

how to clean coo-coo clock chains

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Last Answer : Remove the chains from the clock. Put them in a container with warm water and any grease cutting agent. Dish soap is good. Let them set to loosen the oils and dust. Use a soft toothbrush too clean stuck on spots of residue.

How does a chief executive office differ from a coo?

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What is the molar mass of : (a) lead acetate, Pb(CH3 COO)2?

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. Chemical formula of biuret is (A) NH2 .CO.NH2 (B) NH3 .COO.NH3 (C) NH2CONHCONH2 (D) NH4COONH2

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Last Answer : (C) NH2CONHCONH2

Which raw material is used to impart colour to the glass? a) Al2O3 b) CoO c) CaO d) MgO

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Malonyl-CoA reacts with the central (A) —SH group (B) —NH2 group (C) —COOH group (D) —CH2OH group

Description : Malonyl-CoA reacts with the central (A) —SH group (B) —NH2 group (C) —COOH group (D) —CH2OH group

Last Answer : Answer : A

One round of Edman degradation of the peptide: H2N— Gly—Arg—Lys—Phe— Asp— COOH would result in which of the following structures or their phenyl isothiocyanate derivatives? (A) H2N—Gly—Arg—COOH + H2N—Lys— Phe— Asp—COOH (B) H2N—Gly—Arg—Lys—Phe—COOH + Asp (C) H2N—Arg—Lys—Phe—Asp—COOH + Gly (D) H2N—Gly—Arg—Lys—COOH + H2N—Phe —Asp—COOH

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Last Answer : Answer : C

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How many sterioisomers does the following compound have ? `CH_(3)-CH_(2)-underset(overset(|)(Br))(C)H-CH_(2)-CH=CH-CH_(3)`

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Tartaric acid `[HO_(2)CCH(OH)CH(OH)CO_(2)H]` was an important compound in history of stereochemistry. Two naturally occuring forms of tartaric acid ar

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Tartaric acid `[HO_(2)CCH(OH)CH(OH)CO_(2)H]` was an important compound in history of stereochemistry. Two naturally occuring forms of tartaric acid ar

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