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Examen
MCB 3020 Chapter 16 Questions & Answers | Complete Microbiology Review Guide | Exam Preparation Study Material
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---8julio 20262025/2026A+
- MCB 3020 Microbiology Chapter 16 study guide provides comprehensive review material, practice questions, and verified answers covering important microbiology concepts. This resource helps students master key topics, improve understanding, and prepare effectively for quizzes, exams, and coursework assessments with organized, exam-focused content and clear explanations.
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MCB 150L Unit 1 Microbiology Lab Study Guide with Practice Questions & Verified Answers | Latest Exam Prep 2026–2027
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---21julio 20262025/2026A+
- MCB 150L Unit 1 Microbiology Lab study guide provides comprehensive review material, practice questions, and verified answers covering essential laboratory concepts. This resource helps students understand microbiology techniques, lab procedures, and key concepts while preparing effectively for quizzes, exams, and course assessments with organized, exam-focused content.
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Examen
MCB 354 Exam 1 QUESTIONS AND 
CORRECT ANSWERS
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---37julio 20262025/2026A+
- MCB 354 Exam 1 QUESTIONS AND 
CORRECT ANSWERS 
What did scientists find in the samples from the osirex sample? - CORRECT ANSWER 
nucleotide bases and 14/20 amino acids 
What could the osirex samples tell us? - CORRECT ANSWER 
all five - the first amino acids were 
brought to earth by asteroids - life outside of earth is based on dna/amino acid biology 
How many acids are chiral molecules? - CORRECT ANSWER 
19/20 
What are the two enantiomers of amino acids? - CORRECT ANSWER ...
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Examen
MCB 354 Exam 4 Structures UPDATED 
QUESTIONS AND CORRECT ANSWERS
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---2julio 20262025/2026A+
- MCB 354 Exam 4 Structures UPDATED 
QUESTIONS AND CORRECT ANSWERS 
Biotin - CORRECT ANSWER 
PLP (pyridoxal phosphate) - CORRECT ANSWER 
NADH - CORRECT ANSWER 
FAD - CORRECT ANSWER 
DMAP (dimethylallyl pyrophosphate) - CORRECT ANSWER 
IPP - CORRECT ANSWER 
ATP - CORRECT ANSWER 
SAM (S-adenosylmethionine) - CORRECT ANSWER 
Tetrahydrofolate - CORRECT ANSWER 
Prostaglandins - CORRECT ANSWER 
Riboflavin - CORRECT ANSWER 
Carnitine - C...
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Examen
MCB 354 Exam UPDATED QUESTIONS 
AND CORRECT ANSWERS
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---9julio 20262025/2026A+
- MCB 354 Exam UPDATED QUESTIONS 
AND CORRECT ANSWERS 
Enantiomers - CORRECT ANSWER 
two stereoisomers that are mirror images of one another 
Properties of carbons - CORRECT ANSWER 
single or double bonds, sp3 hybridized or sp2 
complex chains, form four bonds, can form 
Which type of chiral amino acids are found in nature? - CORRECT ANSWER 
have an @ configuration for chiral carbon except glycine and cysteine 
Diasteromers - CORRECT ANSWER 
L-amino acids, 
not mirror im...
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Examen
UIUC MCB 354 Exam QUESTIONS AND 
CORRECT ANSWERS
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---8julio 20262025/2026A+
- UIUC MCB 354 Exam QUESTIONS AND 
CORRECT ANSWERS 
What is the starting point for carbon atom labeling in organic chemistry? - CORRECT ANSWER 
Start from the carboxyl carbon (C=O) and label as α, β, γ, etc. 
Which amino acid is the only non-chiral amino acid? - CORRECT ANSWER 
Glycine 
What system is used to denote chirality in organic chemistry? - CORRECT ANSWER 
system 
What system is used for chirality in biochemistry? - CORRECT ANSWER 
R/S 
D/L system, based 
on glyc...
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Examen
MCB 250 Exam 3 ACTUAL QUESTIONS 
AND CORRECT ANSWERS
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---12julio 20262025/2026A+
- MCB 250 Exam 3 ACTUAL QUESTIONS 
AND CORRECT ANSWERS 
Homologous recombination involves all of the following except ______. 
A. a double stranded break in the DNA 
B. formation of a heteroduplex sequence 
C. two nearly identical DNA sequences 
D. alignment of DNA on different chromosomes 
E. addition of Uracil into the DNA - CORRECT ANSWER 
E. addition of Uracil into the DNA 
In homologous recombination, the term "patch product" refers to _____. 
A. a localized change in DNA ...
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Examen
MCB 250 Exam 3 UPDATED ACTUAL 
QUESTIONS AND CORRECT ANSWERS
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---10julio 20262025/2026A+
- MCB 250 Exam 3 UPDATED ACTUAL 
QUESTIONS AND CORRECT ANSWERS 
The primary mechanism used to repair double-stranded DNA breaks is? -nucleotide excision repair -mismatch excision repair -homologous recombination -crossover during meiosis -arm-linking - CORRECT ANSWER 
homologous recombination 
During homologous recombination, strand invasion involves all of the following except? -a double stranded break in the DNA -two nearly identical DNA sequences -alignment of DNA on different chromosom...
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Examen
MCB 450 Exam 1 Learning Objectives 
UPDATED ACTUAL QUESTIONS AND 
CORRECT ANSWERS
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---7julio 20262025/2026A+
- MCB 450 Exam 1 Learning Objectives 
UPDATED ACTUAL QUESTIONS AND 
CORRECT ANSWERS 
Know the four types of biological molecules & their general roles in Cells. - CORRECT ANSWER 
Carbohydrates: Energy storage & structural support. 
Lipids: Energy storage, membrane structure & signaling. 
Proteins: Enzymatic activity, structural support, transport. 
Nucleic Acids: Genetic information storage & transmission. 
Know the properties of the four types of covalent bonds (formation, enzymes, biomol...
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Examen
MCB 450 Exam 1-3 UPDATED ACTUAL 
QUESTIONS AND CORRECT ANSWERS
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---200julio 20262025/2026A+
- MCB 450 Exam 1-3 UPDATED ACTUAL 
QUESTIONS AND CORRECT ANSWERS 
What are end products of oxidative catabolism? 
a) CO_2, NH_3, H_2O 
b) NADH and FADH_2 
c) ATP 
d) A and B 
e) A, B and C - CORRECT ANSWER 
e) A, B and C 
What occurs when a pyruvate is reduced in the presence of NADH + H^+ and lactic acid 
dehydrogenase? 
a) The carbon 1 (C1) carboxylate group will be cut off as a CO_2. 
b) The C2 carbonyl will be converted to a hydroxyl and gain a proton. 
c) The C2 carbonyl will...
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Examen
MCB 450 Exam 1 UPDATED QUESTIONS 
AND CORRECT ANSWERS
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---19julio 20262025/2026A+
- MCB 450 Exam 1 UPDATED QUESTIONS 
AND CORRECT ANSWERS 
4 major types of biomolecules - CORRECT ANSWER 
acids 
All living organisms can replicate their genetic material 
"replicated molecule" = - CORRECT ANSWER 
All living organisms convert information stored in DNA 
Into protein - CORRECT ANSWER 
carbohydrates, lipids, proteins, nucleic 
DNA (deoxyribonucleic acid) 
(via RNA = ribonucleic acid) 
Proteins allow cells to - CORRECT ANSWER 
biochemical reactions 
...
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Examen
MCB 450 Exam 1 UPDATED ACTUAL 
QUESTIONS AND CORRECT ANSWERS
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---22julio 20262025/2026A+
- MCB 450 Exam 1 UPDATED ACTUAL 
QUESTIONS AND CORRECT ANSWERS 
Four types of biological molecules - CORRECT ANSWER 
carbohydrates, lipids 
Proteins role in cells - CORRECT ANSWER 
proteins, nucleic acids, 
versatile biomolecules, carries most biological 
functions (monomer = L-AA) 
1. Hormones, growth factors 
2. Transporters: iron, amino acid, glucose 
3. Enzymes 
4. Actin, myosin, tubulin 
5. Collagen, elastin, keratin, fibroin 
6. Transcription factors 
Nucleic Acids role...
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Examen
UIUC MCB 450 Exam 1 UPDATED 
ACTUAL QUESTIONS AND CORRECT 
ANSWERS
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---13julio 20262025/2026A+
- UIUC MCB 450 Exam 1 UPDATED 
ACTUAL QUESTIONS AND CORRECT 
ANSWERS 
What does it mean that water has a high dielectric point? - CORRECT ANSWER 
can surround ions and diminish their attraction for oppositely-charged ions 
What is the hydrophobic effect? - CORRECT ANSWER 
its molecules 
Hydrophobic molecules will 
spontaneously aggregate because their aggregation causes an increase in the entropy of the water 
molecules as they are not stuck around the hydrophobic molecules 
What...
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Examen
Biochemistry Exam 1 UIUC MCB 450 
UPDATED ACTUAL QUESTIONS AND 
CORRECT ANSWERS
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---25julio 20262025/2026A+
- Biochemistry Exam 1 UIUC MCB 450 
UPDATED ACTUAL QUESTIONS AND 
CORRECT ANSWERS 
What enzyme forms peptide bonds between amino acids? 
What is the name of the reaction? - CORRECT ANSWER 
peptidyl transferase 
Condensation reaction (H2O is eliminated from amino acid and NH2 of the next) 
Which biomolecule is highly versatile? - CORRECT ANSWER 
proteins 
(hormones, transporters, actin/myosin, collagen and transcription factors) 
What are functions of carbohydrates> - CORRECT ...
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