Structure of disaccharide formed by glucose and fructose is given below. Identify anomeric carbon atoms in monosaccharide units.
'a' carbon of glucose and 'a' carbon of fructose
'a' carbon of glucose and 'e' carbon of fructose
'a' carbon of glucose and 'b' carbon of fructose
'f' carbon of glucose and 'f' carbon of fructose
Out of the 3 given structure, the correct statement regarding bond present between C1 and C4 and C1 and C6 is -
(i) is between C1 and C4, (ii) and (iii) are between C1 and C6
Sucrose is a : a. Monosaccharideb. Disaccharidec. Reducing sugard. Non-reducing sugarChoose the correct option :
Examples of globular proteins are :a. Insulinb. Keratinc. Albumind. MyosinChoose the correct option :
Assertion: β-Glycosidic linkage is present in maltose.
Reason: Maltose is composed of two glucose units in which C- 1 of one glucose unit is linked to C- 4 of another glucose unit.
Assertion and reason both are correct statements and reason explain the assertion.
Assertion and reason both are correct statements but reason does not explain assertion.
Assertion is the correct statement and reason is the wrong statement.
Assertion is the wrong statement and reason is the correct statement.
Carbohydrates are useful for plants-
To build cell membrane.
To support structure.
To serve as a storage molecule.
To help in the transport mechanism.
Consider the following compounds:
Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose
The number of disaccharide carbohydrates is -
3
1
4
2
The main component present in starch and glycogen is :
Amylose
Glacose
Amylopectin
Cellulose
D-Glucose →? Saccharic acid
The oxidizing reagent used for this conversion is -
HI
Bromine water
HNO3
H2SO4
The open structure of glucose cannot be established by -
HCN
Schiff’s test
Hydroxylamine test
Reaction with HI
The incorrect statement about nucleic acid is:
It is responsible for heredity.
It is responsible for protein synthesis in a cell.
It is a constituent of the chromosome.
It is responsible for the transmission of chemical signals.
The correct statement about RNA is-
The helical structure of RNA is mostly single-stranded .
It has deoxyribose sugar.
It is the chemical basis of heredity.
It contains thymine (T)
The essential amino acid is/are-
Valine
Alanine
Serine
All of the above.
The RBC deficiency is deficiency disease of:
Vitamin B1
Vitamin B12
Vitamin B6
C12H22O11 →H2O?2 mole of glucose
The enzyme used for the above conversion is :
Amylase
Lactase
Maltase
Peptidase
Denaturation of proteins involve -
The natural source of vitamin A among the following is -
Amla
Yeast
Fish liver oil
Exposure to sunlight
The reaction of concentrated sulphuric acid with carbohydrates (C12H22O11) is an example of
Dehydration
Oxidation
Reduction
Sulphonation
Deficiency of which vitamin causes osteomalacia ?
Vitamin A
Vitamin D
Vitamin K
Vitamin E
Which of the following statement is not true about glucose ?
It is an aldohexose.
It contains five hydroxyl groups.
It is a reducing sugar.
It is an aldopentose.
Fructose reduces Tollen's reagent due to -
Primary alcoholic group
Secondary alcoholic group
Enolisation of fructose followed by conversion to aldehyde by base
Asymmetric carbon
Which of the following is not a fat soluble vitamin ?
Vitamin B complex
Which of the statements about "Denaturation" given below are correct?
Statementsa. Denaturation of proteins causes loss of secondary and tertiary structures of theprotein.b. Denaturation leads to the conversion of double strand of DNA into a single strand.c. Denaturation affects primary structure which gets distorted.Options :
(a), (b) and (c)
During the process of digestion, the proteins present in food materials are hydrolyzed to amino acids. The two enzymes involved in the process amino acids
pepsin and trypsin
invertase and zymase
amylase and maltase
diastase and lipase
During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process
Proteins →Enzyme (A) Polypeptides →Enzyme (B) Amino acids,
are respectively
पाचन के प्रक्रम के दौरान, खाद्य पदार्थों में उपस्थित प्रोटीन को एमीनो अम्ल में जलअपघटित किया जाता है। प्रक्रम में शामिल दो एंजाइम
प्रोटीन →एंजाइम (A) पॉलीपेप्टाइड →एंजाइम (B) एमीनो अम्ल,
क्रमशः हैं
(a) एमाइलेज और माल्टेज़
(b) डायस्टेज़ और लाइपेज़
(c) पेप्सिन और ट्रिप्सिन
(d) इन्वर्टेज़ और ज़ाइमेज़
α-D-glucose and β-D-glucose are :
Epimers
Anomers
Functional isomers
Chain isomers
Glucose +x Phenyl hydrazine → Osazone 'x' will be :
The base found in DNA but not in RNA :
Please disable the adBlock and continue. Thank you.