277955
When triglycerides are solid at ordinary room temperature, they are called
1 oils
2 gases
3 fats
4 none of these
Explanation:
(c) Fats is a group of natural esters of glycerol along with various fatty acids. They are generally solid at ordinary room temperature. Fats occur naturally in food and play an important role in human nutrition. Fats store energy in the body, protect body tissues by insulating
them, cushion internal organs, and transport fat-soluble vitamins in the blood. Fats are soft, low-melting solids, with a density less than that of water.
NCERT Page-144/ N-106
BIOMOLECULES(NCERT)
277956
The given diagrammatic representation shows one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and one blank component marked as " $X$ " in it.
(d) A combination of a nitrogen base with a pentose sugar is known as nucleoside. The nitrogen base combines with the sugar molecule at its carbon atom ${1}'$ in a glycosidic bond ( $\text{C}-\text{N}-\text{C}$ ) by one of its nitrogen atoms (usually 1 in pyrimidines and 9 in purines). Depending upon the type of pentose sugar, nucleosides are differentiated into ribonucleosides and deoxyribonucleosides.
NCERT Page-145 / N-107
BIOMOLECULES(NCERT)
277957
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
1 base-sugar-phosphate.
2 base-sugar-OH.
3 (base-sugar-phosphate)
4 sugar-phosphate.
Explanation:
(a) Nucleotides are the building blocks of nucleic acid. Each nucleotide consists of three parts: a sugar (ribose for RNA and deoxyribose for DNA), a phosphate, and a nitrogenous base.
NCERT Page-149/ N-111
BIOMOLECULES(NCERT)
277958
A nucleoside differs from nucleotide is not having
1 sugar
2 phosphate
3 nitrogen
4 phosphate and sugar
Explanation:
(c) A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group. A nucleotide consists of a nitrogenous base, a sugar (ribose or deoxyribose) and one to three phosphate groups.
Nucleoside $=$ Sugar + Base
Nucleotide $=$ Sugar + Base + Phosphate
277955
When triglycerides are solid at ordinary room temperature, they are called
1 oils
2 gases
3 fats
4 none of these
Explanation:
(c) Fats is a group of natural esters of glycerol along with various fatty acids. They are generally solid at ordinary room temperature. Fats occur naturally in food and play an important role in human nutrition. Fats store energy in the body, protect body tissues by insulating
them, cushion internal organs, and transport fat-soluble vitamins in the blood. Fats are soft, low-melting solids, with a density less than that of water.
NCERT Page-144/ N-106
BIOMOLECULES(NCERT)
277956
The given diagrammatic representation shows one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and one blank component marked as " $X$ " in it.
(d) A combination of a nitrogen base with a pentose sugar is known as nucleoside. The nitrogen base combines with the sugar molecule at its carbon atom ${1}'$ in a glycosidic bond ( $\text{C}-\text{N}-\text{C}$ ) by one of its nitrogen atoms (usually 1 in pyrimidines and 9 in purines). Depending upon the type of pentose sugar, nucleosides are differentiated into ribonucleosides and deoxyribonucleosides.
NCERT Page-145 / N-107
BIOMOLECULES(NCERT)
277957
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
1 base-sugar-phosphate.
2 base-sugar-OH.
3 (base-sugar-phosphate)
4 sugar-phosphate.
Explanation:
(a) Nucleotides are the building blocks of nucleic acid. Each nucleotide consists of three parts: a sugar (ribose for RNA and deoxyribose for DNA), a phosphate, and a nitrogenous base.
NCERT Page-149/ N-111
BIOMOLECULES(NCERT)
277958
A nucleoside differs from nucleotide is not having
1 sugar
2 phosphate
3 nitrogen
4 phosphate and sugar
Explanation:
(c) A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group. A nucleotide consists of a nitrogenous base, a sugar (ribose or deoxyribose) and one to three phosphate groups.
Nucleoside $=$ Sugar + Base
Nucleotide $=$ Sugar + Base + Phosphate
277955
When triglycerides are solid at ordinary room temperature, they are called
1 oils
2 gases
3 fats
4 none of these
Explanation:
(c) Fats is a group of natural esters of glycerol along with various fatty acids. They are generally solid at ordinary room temperature. Fats occur naturally in food and play an important role in human nutrition. Fats store energy in the body, protect body tissues by insulating
them, cushion internal organs, and transport fat-soluble vitamins in the blood. Fats are soft, low-melting solids, with a density less than that of water.
NCERT Page-144/ N-106
BIOMOLECULES(NCERT)
277956
The given diagrammatic representation shows one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and one blank component marked as " $X$ " in it.
(d) A combination of a nitrogen base with a pentose sugar is known as nucleoside. The nitrogen base combines with the sugar molecule at its carbon atom ${1}'$ in a glycosidic bond ( $\text{C}-\text{N}-\text{C}$ ) by one of its nitrogen atoms (usually 1 in pyrimidines and 9 in purines). Depending upon the type of pentose sugar, nucleosides are differentiated into ribonucleosides and deoxyribonucleosides.
NCERT Page-145 / N-107
BIOMOLECULES(NCERT)
277957
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
1 base-sugar-phosphate.
2 base-sugar-OH.
3 (base-sugar-phosphate)
4 sugar-phosphate.
Explanation:
(a) Nucleotides are the building blocks of nucleic acid. Each nucleotide consists of three parts: a sugar (ribose for RNA and deoxyribose for DNA), a phosphate, and a nitrogenous base.
NCERT Page-149/ N-111
BIOMOLECULES(NCERT)
277958
A nucleoside differs from nucleotide is not having
1 sugar
2 phosphate
3 nitrogen
4 phosphate and sugar
Explanation:
(c) A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group. A nucleotide consists of a nitrogenous base, a sugar (ribose or deoxyribose) and one to three phosphate groups.
Nucleoside $=$ Sugar + Base
Nucleotide $=$ Sugar + Base + Phosphate
277955
When triglycerides are solid at ordinary room temperature, they are called
1 oils
2 gases
3 fats
4 none of these
Explanation:
(c) Fats is a group of natural esters of glycerol along with various fatty acids. They are generally solid at ordinary room temperature. Fats occur naturally in food and play an important role in human nutrition. Fats store energy in the body, protect body tissues by insulating
them, cushion internal organs, and transport fat-soluble vitamins in the blood. Fats are soft, low-melting solids, with a density less than that of water.
NCERT Page-144/ N-106
BIOMOLECULES(NCERT)
277956
The given diagrammatic representation shows one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and one blank component marked as " $X$ " in it.
(d) A combination of a nitrogen base with a pentose sugar is known as nucleoside. The nitrogen base combines with the sugar molecule at its carbon atom ${1}'$ in a glycosidic bond ( $\text{C}-\text{N}-\text{C}$ ) by one of its nitrogen atoms (usually 1 in pyrimidines and 9 in purines). Depending upon the type of pentose sugar, nucleosides are differentiated into ribonucleosides and deoxyribonucleosides.
NCERT Page-145 / N-107
BIOMOLECULES(NCERT)
277957
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
1 base-sugar-phosphate.
2 base-sugar-OH.
3 (base-sugar-phosphate)
4 sugar-phosphate.
Explanation:
(a) Nucleotides are the building blocks of nucleic acid. Each nucleotide consists of three parts: a sugar (ribose for RNA and deoxyribose for DNA), a phosphate, and a nitrogenous base.
NCERT Page-149/ N-111
BIOMOLECULES(NCERT)
277958
A nucleoside differs from nucleotide is not having
1 sugar
2 phosphate
3 nitrogen
4 phosphate and sugar
Explanation:
(c) A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group. A nucleotide consists of a nitrogenous base, a sugar (ribose or deoxyribose) and one to three phosphate groups.
Nucleoside $=$ Sugar + Base
Nucleotide $=$ Sugar + Base + Phosphate
