opensuny d84838,1 course id-246671Bcontent.id-1833661 18step nul MCc D PaperCut

ID: 186773 • Letter: O

Question

opensuny d84838,1 course id-246671Bcontent.id-1833661 18step nul MCc D PaperCut L] Imported From estion Completion Staus QUESTION 1 Malch the polysaccharide to its shape Glycogen Starch Cellulose A straight, never branched B iegularly shaped C unually helical D accordian-foided sheebs E highly branched QUESTION 2 Complete the following table Nucdeic Acld Deoxy bonuclelc acid Ribonucleic acid 12 points Sugar type Number of strands Function rarafer of information during protein synthesi QUESTION There are four levels of protein structure carbaryl upan. together by of mutipl 1.4 points sucdansists of the linear chain of amino acids and is held togethe by Pimary k" ructure free nsional shape is created by inderactons bonds to dreate apa hekes and beta pleated sheets dadeova-)bed, and hydophic esn Lamb-prim bar -mer andis held together by many types of bonds rcldg hydopen bonds.letic brda d associate to form a coplex with greater function 0.1 points QUESTION 4 Lipids are polymers of fatty acids k @ S p

Explanation / Answer

QUESTION 1

Glycogen – highly branched

Starch – Usually helical

Cellulose – Straight, never branched

QUESTION 2

SUGAR TYPE

NUMBER OF STRANDS

FUNCTION

Deoxyribonucleic acid

Deoxyribose

Two

Storage of genetic information

Ribonucleic acid

Ribose

One

(Mostly except double stranded RNA)

Transfer of information

QUESTION 3

There are four levels of protein structure PRIMARY structure consists of linear chain of amino acids and is held together by peptide bonds. In secondary structure amino and carboxyl groups are held together by hydrogen bonds to create alpha helices and beta pleated sheets. In tertiary structure a three dimensional shape is created by interactions of multiple amino acid side chains and is held together by many types of bonds including hydrogen bond, ionic bond, disulphide bond and hydrophobic interactions. Lastly, some proteins have quaternary structure where multiple protein subunits (amino acid chains) associate to form a complex with greater function. Denaturation of a protein occurs when the three dimensional shape and folding is disrupted.

QUESTION 4 – False

Polymers are larger molecules that are formed by the joining of many smaller and similar units called monomers. For eg- Proteins are polymers formed by joining many smaller amino acids. On the other hand, lipids are not polymers because the fatty acids are not directly bonded together. They are formed by a glycerol combining with fatty acids.