//M1//QN1//SUB//DL0//EQ

Intermediate End product

compound

What substances are Z and Y respectively?
81. Haworth projection belongs to which of the following?(a) Maltose, Glucose(b) Sucrose, Glucose(c) Lactose, Fructose(d) Maltose, Fructose

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(A) a-D-(+)-glucose (B) b-D-(+)-galactose
(C) a-D-(+)-galactose (D) b-D-(+)-glucose

//M1//QN2//MCQ//DL0

Egg yolk 2. Tomato 3. Sunlight182. Connect vitamins with diseases caused by its deficiency: 183. Nucleic acid is a polymer of whom?184. In DNA, two hydrogen bonds are found between which bases?185. If the sequence of bases in one chain of nucleotides in DNA is CAGCTG, then what will be the sequence of bases in the corresponding chain of nucleotides?186. Which base is a derivative of purine?187. In DNA the base units are joined to each other by_________. 188. Which of the given pairs is correct for H-bonding in nucleotide? 189. RNA differs from DNA, because RNA has:190. Which nitrogen base is absent in DNA? 191. Purine base is _________.192. _________ base is present in RNA.193. Which base is bicyclic?194. Which is purine base?195. Which of the following base is absent in DNA?196. Which base is join with adenine in DNA?197. Which nitrogen base is absent in RNA?198. Which biomolecule is responsible for heredity?199. Which sugar is present in RNA?200. What is formed by the hydrolysis of DNA and RNA?201. Which base is absent in DNA?202. Which base is absent in RNA?203. How the structure of DNA suggested?204. How many bonds are possible between C and G in the structure of DNA?205. Which pyrimidine base is present in DNA?206. Which component is present in nucleotide?207. Which base is present in RNA instead of thymine?208. Two nucleotides join each other by which linkage?209. What is the function of DNA in any living organisms?210. Which statement is incorrect about ribose sugar?211. Match Column I and Column II correctly. 212. Among the following statements select the correct option using T for true statement and F for false statement : (i) Chromosomes at the center of a living cell are responsible for heredity. (ii) Nucleotide chains in DNA are linked to each other by diester bonds. (iii) A unit formed by base joining to 5th carbon of pentose sugar is called nucleoside. (iv) RNA has a uracil pyridine base.213. Which hormone plays an important role in the metabolism of carbohydrates in the body? 214. Which of the following is amine containing hormone?215. Which of the following is steroid hormone?216. Which hormone controls the amount of water and salts excreted by the kidneys? 217. Addison's disease is caused by whose mal function?218. What is the main sex hormone produced in men?219. Assertion : Proteins lose their biological activity when they undergo denaturation. Reason : Denaturation involves the disruption of hydrogen bonds and changes in the secondary and tertiary structures of the protein.220. Assertion : The primary structure of a protein is intact during denaturation. Reason : Denaturation breaks down the peptide bonds that hold amino acids together in a protein chain.221. Assertion : Glucose can exist in both α and β-anomeric forms due to the formation of a cyclic structure. Reason : The anomeric carbon is the carbon that forms the glycosidic bond in carbohydrates.222. Assertion : The anomeric carbon in glucose is also called the glycosidic carbon. Reason : The anomeric carbon is involved in the formation of the cyclic structure of glucose.223. Assertion : Reducing sugars can reduce Tollen’s reagent. Reason : Reducing sugars have a free aldehyde or ketone group that can donate electrons to reduce Tollen’s reagent.224. Assertion : The furanose form of glucose is more common in nature than the pyranose form. Reason : The pyranose form of glucose is a six-membered ring, which is more stable than the furanose form.225. Assertion : Denaturation of proteins can be reversed under certain conditions. Reason : Denaturation disrupts hydrogen bonds, but these bonds can reform under specific conditions, allowing the protein to regain its original structure.226. Assertion : All vitamins are synthesized in the body and do not need to be obtained from the diet. Reason : Vitamins are essential nutrients that the body requires in small amounts for various metabolic processes.227. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) Proteins can sometimes regain their original structure and function if denaturation conditions are removed.
(ii) The primary structure of a protein is changed during denaturation.
(iii) Glucose in its cyclic form can exist as either a furanose or pyranose structure.
(iv) All vitamins are water-soluble and cannot be stored in the body.
228. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) The anomeric carbon in a glucose molecule is located at carbon atom C-5.
(ii) Carbohydrates are classified based on the number of sugar units they contain.
(iii) Denaturation of a protein affects only the primary structure.
(iv) α-D-glucose and β-D-glucose are anomers due to the difference in the configuration at C-1.
229. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) Vitamin-C can be synthesized by the human body.
(ii) Enzymes are proteins that act as catalysts in biochemical reactions.
(iii) Pentose sugars are always five-membered ring structures.
(iv) The glycosidic bond forms between the anomeric carbon of one sugar and the hydroxyl group of another.
230. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) The term reducing sugar refers to sugars that can reduce certain metal ions.
(ii) The secondary structure of proteins involves the folding of the polypeptide chain into alpha helices or beta sheets.
(iii) Proteins are made up of α-amino acids, which contain an amine group and a carboxyl group.
(iv) A furanose structure in carbohydrates has a six-membered ring.
231. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) Proteins can have more than one polypeptide chain, forming a quaternary structure.
(ii) In the cyclic form of glucose, the anomeric carbon is C-2.
(iii) Vitamins are not essential for metabolic processes.
(iv) Denaturation of proteins is a reversible process in some cases.
232. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) α-D-glucose and β-D-glucose have the same configuration at the C-1 carbon atom.
(ii) All carbohydrates reduce Fehling’s solution.
(iii) The pyranose form of glucose is a six-membered ring structure.
(iv) The structure of a protein’s primary structure is determined by the sequence of nucleotides in its DNA.
233. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) Proteins are polymers of α-amino acids.
(ii) Vitamin-A is water-soluble and can be stored in the body.
(iii) All pentoses exist in the pyranose form in their free state.
(iv) Glycosidic bonds are formed between the anomeric carbon of one sugar and a hydroxyl group of another.
234. Select the correct option using T (True) or

F (False) symbol for the following statements.

(i) The denaturation of proteins only affects the primary structure.
(ii) The Haworth projection represents the cyclic structure of carbohydrates.
(iii) The β-D-glucose anomer has the hydroxyl group on C-1 pointing up in the cyclic form.
(iv) Furanose structures are six-membered rings.
Class 12 Chemistry (Part 2) 022

Section X

Section Y

(i)

Vitamin – A

(A)

Pernicious Anemia

(ii)

Vitamin – B1

(B)

Bleeding

(iii)

Vitamin – E

(C)

Beriberi

(iv)

Vitamin – K

(D)

Impotence

(E)

Night blindness

I

II

(i)

Glycosidic linkage

(P)

Linkage between two nucleotides

(ii)

Peptide bond

(Q)

Insulin

(iii)

Disulphide linkage

(R)

Linkage between two amino acids

(iv)

Phosphodiester linkage

(S)

Linkage
between two monosaccharides

(A) FTTF    (B) TFFT    (C) TTTF    (D) FTFT

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