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BISC207 Lecture Notes - Lecture 4: Condensation Reaction, Carboxylic Acid, Amine

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redcoyote43
9 Sep 2018
School
University of Delaware
Department
Biological Sciences
Course
BISC207
Professor
Olabisi Oyenike

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BISC207 Full Course Notes
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BISC207 Full Course Notes
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Document Summary

Amino acids are the monomers that make up proteins. Results in the loss of a water molecule. Breaks polymers apart by adding a water molecule. Amino acids polymerize when a bond forms between a carboxyl group of one amino acid and an amino group of another. The resulting c-n bond is called a peptide bond. Unusually stable because a pair of valence electrons on nitrogen are partially shared in the c-n bond. Causes peptide bonds to have characteristics of double bonds. A chain of fewer than 50 amino acids is an oligopeptide ( few-peptides ) or a. A chain of more than 50 amino acids is a polypeptide ( many-peptides) Proteins are the complete, functional form of the molecule. Sometimes used to describe any chain of amino acid residues. Proteins have unparalleled diversity of size, shape, and chemical properties! Proteins serve diverse functions in cells because structure gives rise to function. Proteins are crucial to most tasks required by cells.

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Related Questions

Thinking about macromolecules and how their monomers come together to form the polymer match the following. A. glycosidic bonds B. phosphodiester C. ester bonds D. peptide bonds E. monosaccharaides F. amino acids G. nucleotides

1. Monomeric units of protein

2. Monomeric units of DNA

3. Monomeric units of carbohydrates

4. Monomeric units of a lipid

5. Proteins are held together by

6. The bond type that joins adjacent monomers in DNA and RNA

7. Carbohydrates like glycogen are formed by the bonding glucose molecules together via

8. The glycerol backbone of a lipid is bonded to the fatty acid tails by

9. These monomers have a amino group on one end and a carboxylic acid on the other.

10. α1-4 and β1-4 are two different types of this bond.

1. Polypeptide strands is the active form of a digestive enzyme in the stomach that breaks polypeptide chains into smaller polypeptides.

2. Cleavage of proteins by pepsin in the stomach results in formation of pepsinogen which get broken down further in the small intestine.

3. An amino acid chain made up of three amino acids joined together is called a tripeptide.

4. Dipeptide describes an amino acid chain made up of two amino acids joined together.

5. The 20 different amino acids are the building blocks used for protein synthesis.

6. Amino acid pools are stockpiles found in the blood and other cells of the body that can be used to build new proteins.

7. The continual process of degrading and synthesizing protein is called protein turnover.

8. The stomach produces pepsin, which denatures protein.

9. Denaturation occurs when a protein is exposed to heat, acid, bases, or mechanical agitation resulting in unfolding of the protein, though the peptide bonds remain intact.

10. The part of an amino acid that contains nitrogen is called the amine group.

11. The acid group is also known as the carboxyl group.

12. Single amino acids that are absorbed in the small intestine travel to the liver via the portal vein.

Please correct these sentences AS SOON AS POSSIBLE.. Some of them are not correct and I didn't figure out what are they!

1.An ionic bond is created by ? a)a positive and negative ion attracting eachother b)two or more positive ions combining c)two or more negative ions combining d)none of the above

2.A transfer of electrons from one atom to another occurs? a)in all chemical reactions b)in the formation of all chemical bonds c)in the formation of covalent bonds d)none of the above

3.When cucrose is mixed with water and the proper enzyme , the sucrose molecule splits into glucose and fructose the reaction is an example of? a)hydrolysis b)dehydration c)synthesis d)anabolism

4.Which of the following compounds is an organic acid ? a)H2CO3 b)NaOH c)HCl d)KCL

5.Which of the following is a protein ? a )sucrose b)cholesterol c)Raffinose d)Mannose

6.In the formation of polymer dehydration synthesis occurs between ? a)the amino groups of 2 different amino acids b)the acid groups of two different amino acids c) the amono group of one amino acid and the acid group of the other d)none of the above

7.Which of the following is protein? a)surcase b)cholesterol c )raffinose d)mannose

8.The combination of glucose and galactose forms ? a)fructose b)maltose c)lactose d)Surose