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XII Biology Zoology New Chapter-9 Biomolecules [True or False Statement Questions]
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XII Biology Zoology New Chapter-9 Biomolecules [True or False Statement Questions]
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XII Biology_Zoology_New Chapter-9_Biomolecules [True or False Statement Questions]Sl # Statement (Intro & 9.1 Chemical Composition Analysis) True/False
1 A chemical analysis of living tissues can identify numerous organic compounds. TRUE
2 A chemical analysis of living tissues can identify organic compounds. TRUE
3 A chemical analysis of living tissues cannot identify any organic compounds. FALSE
4 A chemical analysis of living tissues identifies numerous organic compounds. TRUE
A destructive experiment involving burning and ash formation is used to determine the
5 TRUE
inorganic constituents in living tissues.
6 Acid-soluble pool in living tissues contains inorganic compounds. FALSE
7 Adenine and guanine are nitrogen bases found in DNA and RNA. TRUE
8 Adenine is a nitrogen base found in proteins. FALSE
9 Adenosine is a nucleoside that serves as genetic material. FALSE
10 Adenosine is not a nucleoside and does not serve as genetic material. FALSE
11 Adenylic acid is a nucleotide found in living organisms. TRUE
12 Adenylic acid is a nucleotide found in the acid-insoluble fraction of living tissues. FALSE
13 Adenylic acid is not a nucleotide found in living organisms. FALSE
14 Alanine is an example of an amino acid with a basic functional group. FALSE
15 All amino acids have the same four substituent groups attached to their a-carbon. FALSE
16 All living organisms are made of the same chemicals, i.e., elements and compounds. FALSE
17 FALSE
All living organisms are made of the same elements and compounds as non-living matter.
18 All proteins contain the same 20 amino acids. TRUE
19 All proteins contain the same 21 amino acids. FALSE
20 Amino acids are substituted methanes with three substituent groups. FALSE
21 Amino acids can only be neutral in nature. FALSE
22 Amino acids contain a hydroxyl group and an acidic group on the same carbon. FALSE
23 Amino acids contain an amino group and an acidic group on the same carbon. TRUE
24 Amino acids do not change structure with varying pH. FALSE
25 Amino acids do not contain an amino group on the same carbon. FALSE
26 Amino acids do not have acidic, basic, or neutral properties based on functional groups. FALSE
27 Amino acids have acidic, basic, or neutral nature based on their functional groups. TRUE
28 Amino acids have acidic, basic, or neutral properties based on functional groups. TRUE
29 Amino acids have amino and carboxyl groups. TRUE
30 Amino acids have no amino and carboxyl groups. FALSE
31 Amino acids have three substituent groups on their a-carbon. FALSE
32 Amino acids have variable groups occupying the four valency positions. FALSE
33 Amino acids in proteins are limited to only ten types. FALSE
34 Amino acids in proteins are limited to only twenty types. TRUE
35 Amino acids in proteins are referred to as a-carbon substituted methanes. TRUE
36 Analytical techniques are not used to identify compounds in a living tissue sample. FALSE
37 Analytical techniques can't determine the molecular formula of a compound. FALSE
38 Analytical techniques do not help in separating compounds from other substances. FALSE
39 TRUE
Analytical techniques help identify compounds by separating them from other substances.
40 TRUE
Analytical techniques help in isolating and purifying organic compounds from living tissues.
41 Aromatic amino acids have ionizable -NH2 and -COOH groups in their structures. TRUE
42 Aromatic amino acids have ionizable -NH2 and -COOH groups. FALSE
43 Aromatic amino acids have R groups designated as aromatic compounds. TRUE
44 Aromatic amino acids have R groups designated as hydrophobic compounds. FALSE
45 Basic amino acids have a carboxyl group on their a-carbon. FALSE
46 Basic amino acids have an ionizable -COOH group. FALSE
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, XII Biology_Zoology_New Chapter-9_Biomolecules [True or False Statement Questions]
Sl # Statement (Intro & 9.1 Chemical Composition Analysis) True/False
47 Basic amino acids have an ionizable -NH2 and an ionizable -COOH group. TRUE
48 Basic amino acids have an ionizable -NH2 group. TRUE
49 Burning a tissue leads to the formation of 'ash' containing inorganic elements. TRUE
50 Carbohydrates and lipids consist mainly of nitrogen bases. FALSE
51 Carbohydrates consist mainly of phosphorus and organic compounds. FALSE
52 Carbohydrates do not contain phosphorus and phosphorylated organic compounds. FALSE
53 Carbohydrates, also known as sugars, are generally hydrophobic compounds. FALSE
54 Carbon and hydrogen are more abundant in living organisms than in the earth's crust. TRUE
55 TRUE
Carbon and hydrogen are relatively more abundant in living organisms than in earth's crust.
56 Carbon compounds from living tissues are known as 'biomolecules'. TRUE
57 Carbon compounds with heterocyclic rings are not present in living organisms. FALSE
58 Cholesterol is an example of a phospholipid found in cell membranes. FALSE
59 DNA and RNA are both nucleic acids. TRUE
60 DNA and RNA consist only of nucleotides. TRUE
61 DNA and RNA do not function as genetic material in living organisms. FALSE
62 DNA and RNA do not function as genetic material. FALSE
63 DNA and RNA function as genetic material in living organisms. TRUE
64 DNA and RNA function as structural components in living organisms. FALSE
65 DNA and RNA have the same composition and function in living organisms. FALSE
66 DNA functions as genetic material in living organisms. TRUE
67 DNA functions primarily as an energy storage molecule in living organisms. FALSE
68 Earth's crust contains a higher percentage of hydrogen compared to the human body. FALSE
Elemental analysis gives information about the types of organic compounds present in living
69 FALSE
tissues.
Elemental analysis of a living tissue and a piece of earth's crust reveals absolute differences in
70 FALSE
their element composition.
71 Elemental analysis of living tissues is not performed in chemistry. FALSE
72 Elemental analysis of living tissues reveals differences compared to non-living matter. FALSE
Elemental analysis of living tissues shows no absolute differences compared to non-living
73 FALSE
matter.
74 Elemental analysis provides the kind of organic compounds present in living tissues. FALSE
75 Elemental analysis reveals differences between living tissue and earth's crust. FALSE
Elemental analysis reveals the absolute differences between living tissues and non-living
76 FALSE
matter.
77 Elemental analysis reveals the elemental composition of living tissues. TRUE
78 Elemental analysis reveals the type of inorganic compounds present in living tissues. FALSE
79 Elemental analysis reveals the type of organic compounds present in living tissues. FALSE
80 Fats and oils are based on melting point. TRUE
81 Fats and oils are not based on melting point. FALSE
82 Fats and oils have the same chemical composition. FALSE
83 Fats and oils have the same melting point. FALSE
84 Fatty acids can be both saturated and unsaturated. TRUE
85 Fatty acids can be either saturated or unsaturated depending on double bond presence. TRUE
86 TRUE
Fatty acids can be saturated or unsaturated depending on the presence of C=C double bonds.
87 TRUE
Fatty acids can be saturated or unsaturated, depending on the presence of C=C double bonds.
88 Fatty acids can be saturated or unsaturated. TRUE
89 Fatty acids can only be saturated and have no double bonds. FALSE
2 OF 36 RI_Best Wishes
, XII Biology_Zoology_New Chapter-9_Biomolecules [True or False Statement Questions]
Sl # Statement (Intro & 9.1 Chemical Composition Analysis) True/False
90 Fatty acids can only be unsaturated and have no double bonds. FALSE
91 Fatty acids consist of a hydroxyl group attached to an R group. FALSE
92 Fatty acids contain ester groups attached to an R group. FALSE
93 Fatty acids do not contain a carboxyl group. FALSE
94 Fatty acids do not have an R group. FALSE
95 Glucose and ribose are examples of carbohydrates. TRUE
96 Glucose is an example of a carbohydrate found in living organisms. TRUE
97 Glucose is an example of a carbohydrate. TRUE
98 Glucose is not an example of a carbohydrate found in living organisms. FALSE
99 Glycerol and fatty acids can be found in monoglycerides, diglycerides, and triglycerides. TRUE
100 Glycerol can be esterified with fatty acids to form lipids. TRUE
101 Glycerol is a fatty acid with one carbon. FALSE
102 Glycerol is a simple lipid with a carboxyl group attached to an R group. FALSE
103 Glycerol is an example of a simple fatty acid. FALSE
104 Glycine is an example of an amino acid with a neutral functional group. TRUE
105 Glycine is an example of an amino acid with an amino group as an R group. FALSE
106 Glycine is not an example of an amino acid with an amino group as an R group. FALSE
107 Grinding living tissue in trichloroacetic acid does not yield any acid-soluble pool. FALSE
108 TRUE
Grinding living tissue in trichloroacetic acid yields acid-soluble and acid-insoluble fractions.
109 Inorganic elements like calcium and magnesium are present in living tissues. TRUE
110 Lecithin is an example of a phospholipid. TRUE
111 Lipids are commonly known as fats, regardless of their melting points. FALSE
112 TRUE
Lipids are esterified with glycerol, forming monoglycerides, diglycerides, and triglycerides.
113 Lipids are generally found in the cell membrane. FALSE
114 Lipids are generally not found in cell membranes. FALSE
115 Lipids are organic compounds containing an amino group and an acidic group. FALSE
116 Lipids contain a methyl group as an R group. TRUE
117 FALSE
Living organisms contain nitrogen bases like adenine and guanine, which are nucleotides.
118 FALSE
Living organisms contain only carbon compounds and no inorganic elements or compounds.
119 Living organisms have a diverse range of elements and compounds in their composition. TRUE
120 Neural tissues have lipids with more complex structures than other tissues. TRUE
121 Neural tissues have lipids with simpler structures compared to other tissues. FALSE
122 Nitrogen bases are found attached to a sugar. TRUE
123 Nitrogen bases like adenine and guanine are not found in living organisms. FALSE
124 Nitrogen bases, like adenine and guanine, are not essential for living organisms. FALSE
125 Nitrogen bases, like adenine and guanine, are not present in living organisms. FALSE
126 Nitrogen bases, like adenine and guanine, are present in living organisms. TRUE
127 Nucleic acids like DNA and RNA consist of nucleotides and amino acids. FALSE
128 Nucleic acids like DNA and RNA consist of nucleotides and lipids. FALSE
129 Nucleic acids like DNA and RNA consist of nucleotides and proteins. FALSE
130 Nucleic acids like DNA and RNA consist of nucleotides exclusively. TRUE
131 FALSE
Nucleosides are formed when nitrogen bases are attached to a sugar and a phosphate group.
132 Nucleosides are formed when nitrogen bases are attached to a sugar. TRUE
133 Nucleosides are not found attached to a sugar. FALSE
134 Nucleosides consist of nitrogen bases attached to sugars. TRUE
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, XII Biology_Zoology_New Chapter-9_Biomolecules [True or False Statement Questions]
Sl # Statement (Intro & 9.1 Chemical Composition Analysis) True/False
135 Nucleosides contain a phosphate group esterified to the sugar. FALSE
136 Nucleosides do not contain a phosphate group esterified to the sugar. FALSE
137 Nucleosides do not contain any phosphate group. TRUE
138 Nucleosides have a phosphate group attached to the sugar. FALSE
139 Nucleosides have a phosphate group esterified to the sugar. FALSE
140 Nucleotides are nitrogen bases with a phosphate group attached to the sugar. TRUE
141 Nucleotides are nitrogen bases with a phosphate group esterified to the sugar. TRUE
142 Nucleotides are not involved in genetic material transmission. FALSE
143 Nucleotides are the building blocks of nucleic acids like DNA and RNA. TRUE
144 Nucleotides consist of a sugar and a nitrogen base, but no phosphate group. FALSE
145 Nucleotides consist of a sugar, a nitrogen base, and a phosphate group. TRUE
146 Nucleotides consist of a sugar, a phosphate group, and a nitrogen base. TRUE
147 Nucleotides do not contain a phosphate group esterified to the sugar. FALSE
148 Nucleotides have a phosphate group esterified to the sugar. TRUE
149 Oils have a higher melting point compared to fats. FALSE
150 Oils have a higher melting point than fats. FALSE
151 Oils have a lower melting point compared to fats. TRUE
152 Organic compounds can be found in the acid-soluble pool of living tissues. TRUE
153 Palmitic acid has 14 carbon atoms in its structure. FALSE
154 Palmitic acid has 16 carbon atoms in its structure. TRUE
155 Phospholipids are found in cell membranes and do not contain any phosphate group. FALSE
156 Phospholipids are found in cell membranes and have no phosphate group. FALSE
157 Phospholipids are found in the acid-soluble pool of living tissues. FALSE
158 Phospholipids are found in the cell membrane and contain nitrogen. FALSE
159 Phospholipids are found in the cell membrane but do not contain phosphorus. FALSE
160 Phospholipids are not found in the cell wall. FALSE
161 Phospholipids are water-soluble compounds found in cell membranes. FALSE
162 Phospholipids are water-soluble compounds found in neural tissues. FALSE
Phospholipids contain a phosphate group and an organic compound with a phosphorylated
163 TRUE
group.
164 Phospholipids do not have complex structures in neural tissues. FALSE
165 Phospholipids with phosphorus and organic compounds are found in cell membranes. TRUE
166 Proteins are classified based on their number of carboxyl groups. FALSE
167 Proteins are exclusively composed of amino acids. TRUE
168 Proteins can contain acidic, basic, and neutral amino acids. TRUE
169 Proteins consist of more than twenty types of amino acids. FALSE
170 Proteins consist of only twenty types of amino acids. FALSE
171 Proteins function as genetic material in living organisms. FALSE
172 Saturated fatty acids contain one or more C=C double bonds. FALSE
173 Scientists have found no organic compounds in the acid-soluble pool. FALSE
174 Serine is an example of an amino acid with an aromatic R group. FALSE
The acid-insoluble fraction obtained in chemical analysis of living tissues contains organic
175 FALSE
compounds.
176 The acid-soluble fraction contains only organic compounds. TRUE
177 The acid-soluble pool of living tissues contains a few hundred organic compounds. FALSE
178 The acid-soluble pool of living tissues contains no organic compounds. FALSE
179 TRUE
The chemical properties of amino acids are primarily determined by their R functional groups.
180 The R group in amino acids is always a hydrogen. FALSE
181 The R group in amino acids is always a methyl group. FALSE
4 OF 36 RI_Best Wishes
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