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Question
Distinguish between Nitrogen base and a base found in inorganic chemistry.
Solution 1
| Nitrogen base | Base in inorganic chemistry |
| An organic molecule containing Nitrogen and has some chemical properties of a base. | Inorganic base is a substance they are metal oxides or hydroxides. Base is also a substance that can donate pair of electrons to other elements to form new molecule. |
| Nitrogen is an odourless, colourless & tasteless gas so reacts easily with other elements. | Characters of a base- Base is soapy or slimpy substance bitter in taste. |
| This reactivity makes it an important part in compounds necessary for life | React with acid-precipitate to form salts |
2 Types-
|
Turn red litmus to blue. |
| Chemistry of nitrogenuous bases is key in the functioning of DNA (allows complementary base pairing) |
Solution 2
- Nitrogenous Base:
- Nitrogenous bases are organic molecules containing the element nitrogen & act as a base in the chemical reaction.
- e.g. Adenine, Thymine
- Base:
- Bases are the substance that release hydroxide (OH– ) ions in an aqueous solution.
- e.g. NaOH and Ca(OH)2
RELATED QUESTIONS
Give scientific reasons:
On complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide is double stranded. (_______)
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains D-ribose. (_______)
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains guanine. (_______)
Sugar present in DNA is ___________
Write the characteristic feature of DNA.
Watson and Crick are known for their discovery of ______.
DNA differs from RNA in ______.
____________ bonds are absent in DNA.
Which of the following is not present in DNA?
What is the number of \[\begin{array}{cc}\\\backslash\phantom{.......}\\\phantom{}\ce{C = O}\\/\phantom{........}\end{array}\] groups present in nitrogen bases of nucleic acids, thymine and uracil respectively?
The pyrimidine bases present in DNA are ____________.
What type of linkages holds together monomers of DNA?
Write a note on the formation of α-helix.
Which of the following are substituted purines?
Draw a neat diagram for the following:
AMP
Which carbon atom of deoxy Ribose sugar in DNA does not contain \[\begin{array}{cc}|\phantom{...}\\\ce{- C - OH}\\|\phantom{....}\\ \end{array}\] bond?
Which of the following statements are correct?
- In animals, the causative agent of foot and mouth disease in single stranded RNA Aphthovirus.
-
In animals foot and mouth disease spreads by direct or indirect contact.
-
Anthrax is a disease of domestic animals caused by Bacillus anthracis.
-
Rinderpest is a contagious bacterial disease of cattle.
