LQB182
Kaplan University
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Exam (elaborations)
LQB182 EXAM| 302 QUESTIONS| WITH COMPLETE SOLUTION
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--128November 20222022/2023A+
- Proteins Correct Answer: Large molecules composed of one or more long chains of amino acids; structural components of body tissues such as muscle, hair, etc., and as enzymes and antibodies. 
 
Lipids Correct Answer: Any of a class of organic compounds that are fatty acids, or their derivatives, and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids. 
 
Carbohydrates Correct Answer: Biological molecules made of carbon, hydrogen, and oxyg...
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HIGHFLYER
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Exam (elaborations)
LQB182 EXAM QUESTIONS AND ANSWERS| VERIFIED
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---5November 20222022/2023A+
- The reactivity of an atom arises from Correct Answer: the existence of unpaired electrons in the valence shell. 
 
Covalent bonds differ from ionic and metallic bonds because in covalent bonding Correct Answer: pairs of electrons are shared 
 
Water contains 2 atoms of hydrogen and 1 atom of oxygen. What bond type holds these together Correct Answer: Covalent boding 
 
True or False? Polymerisation of monomers occurs due to covalent bonding between monomer units Correct Answer: True 
 
The s...
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HIGHFLYER
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Exam (elaborations)
LQB182 Exam 2022 QUESTIONS WITH COMPLETE SOLUTIONS
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---34November 20222022/2023A+
- Storage of DNA info Correct Answer: -in the sequence of bases 
-5' to 3' 
-chromosomes= 51 million to 245 million base pairs 
-information in DNA used for replication of chromosomes, production of proteins and regulation 
-average gene = 1400 bp 
 
The central dogma Correct Answer: replication DNA → RNA → protein (transcription and translation 
replication only occurs when the cell needs to divide, not when it needs to encode a message 
Nucleus: replication, transcription 
Cytosol: trans...
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HIGHFLYER