Ampholytes Study guides, Class notes & Summaries
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Biochemistry - Exam 1 Practice Questions & Answers 2023/2024 A+
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Biochemistry - Exam 1 Practice Questions & Answers 2023/2024 A+ 
 
In a bacterial cell, the DNA is in the: 
A) cell envelope. 
B) cell membrane. 
C) nucleoid. 
D) nucleus. 
E) ribosomes. 
nucleoid 
A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: 
A) DNA. 
B) photosynthetic capability. 
C) plasma membranes. 
D) ribosomes. 
E) the nucleus 
the nucleus 
In eukaryotes, the nucleus is enclosed by a double membrane called the: 
A) cell membrane. 
B) nuc...
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Test Bank for Lehninger Principles of Biochemistry 7th Edition by Nelson (complete, questions/answers/rationales)
- Exam (elaborations) • 42 pages • 2023
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The chirality of an amino acid results from the fact that its α carbon: 
A) has no net charge. 
B) is a carboxylic acid. 
C) is bonded to four different chemical groups. 
D) is in the L absolute configuration in naturally occurring proteins. 
E) is symmetric. 
C) is bonded to four different chemical groups. 
 
 
 
Of the 20 standard amino acids, only ___________ is not optically active. The reason is that its side chain ___________. 
A) alanine; is a simple methyl group 
B) glycine; is a hydrog...
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Barber Practice Test: State Board Shaving 100% Correct
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Permanent haircolor creates a: 
a. chemical change 
b. physical change 
c. elemental change 
d. compound change - ANSWER a. chemical change 
 
Hard water can be softened by distillation or by the use of: 
a. sodium carbonate 
b. sodium chloride 
c. magnesium salts 
d. calcium salts - ANSWER a. sodium carbonate 
 
Only aqueous (water) solutions have: 
a. hydrogen 
b. pH 
c. oxygen 
d. surfactants - ANSWER b. pH 
 
Compared to skin and hair, water is: 
a. the same pH 
b. 10 times more acidic 
c. ...
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Clinical Chemistry I ASCP review 2023 Questions and Answers
- Exam (elaborations) • 87 pages • 2023
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Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR, and near UV regions of the spectrum? 
A. Tungsten-filament 
B. Hydrogen 
C. Deuterium 
D. Mercury vapor - ANSWER-A most common light source for photometry in the visible region. continuous spectrum (360-800 nm). near IR and UV. 
 
Hydrogen and Deuterium (200-375 nm) 
Mercury vapor- not a continuous spectrum, emitting radiation at specific wavelengths 
 
Which of the following isolates light 
...
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Biochemistry Test 1 Questions and Answers Graded A+
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Biochemistry Test 1 Questions and Answers Graded A+ biochemistry a discipline in biochemistry; is the description of molecules in biology/chemistry of proteins 
molecular biology a discipline in biochemistry; the manipulation of DNA, genetics 
cell biology a discipline in biochemistry; larger scale, functions and mechanisms within a cell/cell energetics 
cellulose a natural polymer; found in plants for storage 
glycogen a natural polymer; found in animals for storage 
protein a natural polymer; ...
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Biochemistry Test 1 questions and answers
- Exam (elaborations) • 12 pages • 2023
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Biochemistry Test 1 questions and answers 
biochemistry 
a discipline in biochemistry; is the description of molecules in biology/chemistry of proteins 
 
 
 
molecular biology 
a discipline in biochemistry; the manipulation of DNA, genetics 
 
 
 
cell biology 
a discipline in biochemistry; larger scale, functions and mechanisms within a cell/cell energetics 
 
 
 
cellulose 
a natural polymer; found in plants for storage 
 
 
 
glycogen 
a natural polymer; found in animals for storage 
 
 
 
p...
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Gr11 Acid-Base Reactions & Redox Reactions
- Interview • 16 pages • 2022
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Detailed notes on Acid-Base Reactions and Redox Reactions 
Based on IEB syllabus 
-Acids 
-Bases 
-Conjugate Acid-base Pairs 
-Ampholytes 
-Acid-Base Reactions 
-Acid-Base Indicators 
-Acid-Base Titrations 
-Redox Reactions 
-Oxidation Number 
-Balancing Redox Reactions
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TestBank Lehninger Principles of Biochemistry 7e Nelson TB
- Exam (elaborations) • 560 pages • 2022
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TestBank Lehninger Principles of Biochemistry 7e Nelson TB 
 
TestBank 
Lehninger 
Principles of 
Biochemistry 
7e Nelson TBPage 1 
1. In a bacterial cell, the DNA is in the: 
A) cell envelope. 
B) cell membrane. 
C) nucleoid. 
D) nucleus. 
E) ribosomes. 
2. A major change occurring in the evolution of eukaryotes from prokaryotes was the 
development of: 
A) DNA. 
B) photosynthetic capability. 
C) plasma membranes. 
D) ribosomes. 
E) the nucleus. 
3. In eukaryotes, the nucleus is enclosed by a d...
-
Biochemistry - Exam 1 Practice Questions and Answers 2022
- Exam (elaborations) • 10 pages • 2022
-
Available in package deal
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- $13.99
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In a bacterial cell, the DNA is in the: 
A) cell envelope. 
B) cell membrane. 
C) nucleoid. 
D) nucleus. 
E) ribosomes. 
nucleoid 
 
 
A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: 
A) DNA. 
B) photosynthetic capability. 
C) plasma membranes. 
D) ribosomes. 
E) the nucleus 
the nucleus 
 
 
 
 
 
 
00:34 
01:10 
In eukaryotes, the nucleus is enclosed by a double membrane called the: 
A) cell membrane. 
B) nuclear envelope. 
C) nucleolus. 
D) nuc...
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Biochemistry - Exam 1 Practice Questions and answers A+ content
- Exam (elaborations) • 10 pages • 2023
-
Available in package deal
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- $18.49
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In a bacterial cell, the DNA is in the: 
A) cell envelope. 
B) cell membrane. 
C) nucleoid. 
D) nucleus. 
E) ribosomes. 
nucleoid 
 
 
 
A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: 
A) DNA. 
B) photosynthetic capability. 
C) plasma membranes. 
D) ribosomes. 
E) the nucleus 
the nucleus 
 
 
 
In eukaryotes, the nucleus is enclosed by a double membrane called the: 
A) cell membrane. 
B) nuclear envelope. 
C) nucleolus. 
D) nucleoplasm. 
E) nucl...
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