What are hydrogen bonds Study guides, Class notes & Summaries
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BPK 110 Final Review Questions and Answers 2024 with complete solution
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BPK 110 Final Review Questions and 
Answers 2024 with complete solution 
Differentiate between complete and incomplete proteins and provide typical sources of each. - 
Answer ️️ -Complete proteins: Have all nine essential amino acids. 
Ex. Animal sources of protein (milk, meat) 
Incomplete proteins: Lack one or more of the essential amino acids. 
Ex. Plant sources of proteins (legumes) 
Describe the molecular structure of proteins and the four levels of protein structure. Which bonds 
are es...
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OCR AS LEVEL CHEMISTRY A H032/01 BREADTH IN CHEMISTRY ORIGINAL 2024 EXAM 100 % COMPLETE QUESTIONS AND ANSWERS A+ SCORE GUARANTEED.CHECK THE LAST PAGE FOR ANSWERS.
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OCR AS LEVEL CHEMISTRY A H032/01 BREADTH IN CHEMISTRY 
 ORIGINAL 2024 EXAM 100 % COMPLETE QUESTIONS AND ANSWERS 
A+ SCORE GUARANTEED.CHECK THE LAST PAGE FOR ANSWERS. 
1	Which substance contains polar molecules? 
 
A	C2H4 
B	CO2 
C	NCl 3 
D	SF6 
Your answer	 	[1] 
 
 
2	What is the formula of silver carbonate? 
 
A	AgCO3 
B	Ag(CO3)2 
C	Ag2CO3 
D	Ag3CO3 
Your answer	 	[1] 
 
 
3	Which statement explains why ice is less dense than water? 
 
A	Hydrogen bonds are stronger in ice than in water. 
 
B	H...
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Test Bank Chapter 4, Intro to Molecular Cell Biology – A+ Questions and Answers 100%
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True or false: 
Generally, the total number of nonpolar amino acids has a greater affect on protein structure than the exact order of amino acids in a polypeptide chain. - CORRECT ANSWER-False. The order in which amino acids are linked is unique for each protein and is the most important factor in determining the overall protein factor. 
 
True or False: 
The "polypeptide backbone" refers to all atoms in a polypeptide chain, except for those that form the peptide bonds. - CORRECT ANSWER-False...
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AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN227404201* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1
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AQA 
AS 
CHEMISTRY 
7404/2 
Paper 2 Organic and Physical Chemistry 
Question Paper + Mark scheme [MERGED] 
June 2022 
*JUN* 
IB/M/Jun22/E7 7404/2 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
Section B 
TOTAL 
Time allowed: 1 hour 30 minutes 
Materials 
For this paper you must have: 
• the Periodic Table/Data Sheet, provided as an insert (enclosed) 
• a ruler with millimetre measurements 
• a scientific calculator, which you are expected to use where appropriate. 
Instructions...
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PORTAGE LEARNING CHEM 210 exams 1-8 and final exam
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Portage Learning CHEM 210 exams 1-8 and final exam 
 
Question 1 
3 / 3 pts 
 
True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. 
 
 
 
True Correct! 
False Question 2 
3 / 3 pts 
True or False: Biomolecules can have only two functional groups. 
 
True Correct! 
False Question 3 
3 / 3 pts 
 
True or False: The following functional group is an alcohol. 
 
 
 
 
 
True Correct! 
False Question 4 
3 / 3 pts 
 
True or False: In ...
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Test Bank For Organic Chemistry 9th Edition by John E. McMurry
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Chapter 01 - Structure and Bonding 
1. Give the ground-state electron configuration for carbon (atomic number 6). 
1s22s22px12py1 or 1s22s22p2 
2. Give the ground-state electron configuration for fluorine (atomic number 9). 
ANSWER: 
POINTS: 1 
1s22s22px2 2py2 2pz1 or 1s22s22p5 
3. Give the ground-state electron configuration for magnesium (atomic number 12). 
1s22s22p63s2 
4. How many electrons does silicon have in its valence shell? 
ANSWER: four POINTS: 1 
Exhibit 1-1 
Write valid Lewis (elec...
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Final Exam BIO 150 (Ch. 16,17,18,20)Correct 100%
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Uncorrected mistake during meiosis will lead to: - ANSWER production of gametes with mutated genes 
 
What molecule holds instructions for the synthesis of protein and copies itself for the next generation of cells: - ANSWER DNA 
 
DNA's sugar-phosphate backbones are joined with - ANSWER covalent bonds 
 
Strands of DNA are joined by - ANSWER hydrogen bonds 
 
If you were watching a cell undergoing a doubling of the dna in its nucleus, you would be observing - ANSWER replication
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PA Cosmetology Exam
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Under-processing is caused by - Answer- insufficient processing time 
 
Which of the following guidelines is true if your client has a round facial shape? - Answer- add height at the crown 
 
A client as a level 7 red-orange brassy looking hair. What is the best choice for neutralizing this color? - Answer- level 6 blue-green 
 
Do NOT give a permanent wave if what exists? - Answer- scalp abrasions 
 
The chemical often required in addition to the chemical relaxer is - Answer- stabilizer 
 
.6) ...
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Dental Materials Clinical Applications for Dental Assistants and Dental Hygienists 3rd Edition By W. Stephan Eakle -Test Bank
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Chapter 01: Introduction to Dental Materials 
 
MULTIPLE CHOICE 
 
	1.	Until 1970, which of the following groups of dental auxiliaries were allowed to perform intraoral functions in all states? 
1. Dental hygienists 
2. Registered dental assistants 
3. Certified dental assistants 
4. On-the-job trained dental assistants 
a.	1, 2, 3, 4 
b.	1, 2, 3 
c.	1, 2 
d.	1 
 
 
ANS:	D 
Until 1970, only the dental hygienist was allowed to perform intraoral functions in all states. Although laws vary ...
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Portage Learning: Microbiology Final Exam Set Already Passed
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Portage Learning: Microbiology Final Exam Set Already Passed Microbiology is the study of what? Microbiology is the study of microbes (microorganisms and viruses) and their biological processes. 
What is the smallest biological unit of life? A cell 
What is a macromolecule? A macromolecule is classified as a complex molecule that is composed from smaller subunits. 
What are the four main types of macromolecules? Proteins, nucleic acids, lipids and carbohydrates 
What various functions do protein...
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