Tag: biochemical polymers

Questions Related to biochemical polymers

A nucleotide is made up of:

biochemical polymers polymerisation chemistry

  1. a base and sugar

  2. a base and phosphate unit

  3. a sugar and phosphate unit

  4. a sugar, a base and a phosphate unit

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Correct Option: D
Explanation:

Sugar + Base + a phosphate unit constitute one nucleotide.
This is the definition of a nucleotide.

The sequence between nucleotide triplets and the amino acids is called

biochemical polymers polymerisation chemistry

  1. transcription

  2. duplication

  3. genetic code

  4. gene

Show answer
Correct Option: C
Explanation:

Genetic code is the sequence between nucleotide triplets and the amino acids. The whole phenomenon is called as Central Dogma. It's a really important phenomenon and a lot of cell organelles are involved : DNA, mRNA, Ribosomes, etc.

The genetic language of nucleotides translates into language of:

biochemical polymers polymerisation chemistry

  1. carboxylic acids

  2. amino acids

  3. ketones

  4. aldehydes

Show answer
Correct Option: B
Explanation:

During protein synthesis, the following process occurs:
The information stored in DNA is coded in the form of RNA in a process called transcription.
Next, the RNA code is processed in ribosomes and ultimately proteins (made of amino acids) are made. So, B is correct.

The sugar unit present in the nucleotides of RNA is :

biochemical polymers polymerisation chemistry

  1. D - ribulose.

  2. L - ribose.

  3. D - ribose.

  4. L - ribulose.

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Correct Option: C

Which of the following is not present in nucleotide?

biochemical polymers polymerisation chemistry

  1. guanine

  2. cytosine

  3. adenine

  4. tyroxine

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Correct Option: D
Explanation:

Tyroxine is not present in nucleotide. Nucleotide consists of adenine, guanine, cytosine, thymine, uracil, molecule of sugar and one of phosphoric acid.

The relationship between the nucleotide triplets and the amino acids is called:

biochemical polymers polymerisation chemistry

  1. translation

  2. transcription

  3. replication

  4. a genetic code

Show answer
Correct Option: D
Explanation:

The relationship between the nucleotide triplets and the amino acids is called a genetic code.
This determines the sequence of amino acids in the proteins that are synthesized.

Match the column I with column II and mark the appropriate choice

Column I Column II
(A) Peptide linkage (i) Inversion
(B) Nucleic acid (ii) Polysaccharide
(C) Hydrolysis of cane sugar (iii) Proteins
(D) Starch (iv) Nucleotides
biochemical polymers polymerisation chemistry

  1. (A) $\rightarrow$ (i); (B) $\rightarrow$ (i); (C) $\rightarrow$ (iii); (D) $\rightarrow$ (iv)

  2. (A) $\rightarrow$ (iv); (B) $\rightarrow$ (i); (C) $\rightarrow$ (ii); (D) $\rightarrow$ (iii)

  3. (A) $\rightarrow$ (iii); (B) $\rightarrow$ (iv); (C) $\rightarrow$ (i); (D) $\rightarrow$ (ii)

  4. (A) $\rightarrow$ (i); (B) $\rightarrow$ (iii); (C) $\rightarrow$ (iv); (D) $\rightarrow$ (ii)

Show answer
Correct Option: C
Explanation:

$A.$ Proteins have peptide linkage

$B.$ Neucleic acid has Neucleotides
$C.$ Hydrolysis of cone sugar is inversion
$D.$ Starch is a polysaccharide.

RNA molecules are of three types which are based on their different functions. These are:

biochemical polymers polymerisation chemistry

  1. messenger RNA, translational RNA, structural RNA

  2. cytosine RNA, nucleoside RNA, nucleotide RNA

  3. messenger RNA, ribosomal RNA, transfer RNA

  4. primary RNA, secondary RNA, tertiary RNA

Show answer
Correct Option: C
Explanation:
There are 3 types of RNA, each encoded by its own type of gene:
mRNA - Messenger RNA $\rightarrow$ Encodes the amino acid sequence of a polypeptide.
tRNA - Transfer RNA $\rightarrow$ Brings amino acids to ribosomes during translation.
rRNA - Ribosomal RNA $\rightarrow$ With ribosomal proteins, makes up the ribosomes, the organelles that translate the mRNA.

Maximum amount of RNA is found in:

biochemical polymers polymerisation chemistry

  1. nucleolus.

  2. chloroplast.

  3. ribosomes.

  4. cytoplasm.

Show answer
Correct Option: C
Explanation:

Maximum amount of RNA is present in Nucleolus.

Nucleolus is present in Nucleus.

When adenine is attached to ribose sugar, it is called adenosine. To make a nucleotide from it, it would require?

biochemical polymers polymerisation chemistry

  1. Oxygenation

  2. Addition of a base

  3. Addition of phosphate

  4. Hydrogenation

Show answer
Correct Option: C
Explanation:

Answer:- (C) addition of phosphate

Adenine forms adenosine, a nucleoside, when attached to ribose. It forms adenosine triphosphate (ATP), a nucleotide, when three phosphate groups are added to adenosine.