I need help with this qustions please give me the correct answers and be clear w

Question

I need help with this qustions please give me the correct answers and be clear with it

Question 1

Starch is: (select all the correct answers)

Question 2

The monomers in starch are joined together by which type of linkage?

Question 3

Glycogen is: (select all that are correct)

Question 4

What type of reaction will break down glycogen and produce glucose molecules?

Question 5

Cellulose is: (select all that apply).

Question 6

In cellulose, covalent bonds link glucose monomers and hydrogen bonds hold the long glucose chains together.

Question 7

Chitin is: (select all that apply)

Question 8

Lipids are not true polymers?

Question 9

Steroids are lipids

Question 10

A fat is composed of

Question 11

Roles of fats include: (select all that apply)

Question 12

Lizards store fat in their ___________ and mammals store fat ______________.

Question 13

A phospholipid molecule has how many fatty acid chains? Write a single number as the answer as a number. Do not use letters.

Question 14

Which "side" of a phospholipid will face the aqueous environment inside and outside of the cell?

Question 15

Fatty acid tails are

Question 16

Steroids can be recognized because they have

Question 17

Which of the follow is NOT a major role of proteins?

Question 18

Hair is made of keratin and keratin is a protein.

Question 19

In the molecule shown below, the functional group to the left of the letter A is?

Question 20

The bond shown at C is called a?

Question 21

The primary structure of a protein can best be described as?

Question 22

Which bonds are important to the secondary level of protein structure:

A: peptide bonds
B: Hydrogen bonds
C: a variety including disulphide bridges, hydrogen bonds, ionic bonds, Van der Walls interactions

Explanation / Answer

starch is- a energy storage carbohydrate in plants and animals,and is a polymer of glucose. monomers in starch are polysaccharides i.e amylase joined by alpha 1,4 glycosidic linkage and amylopectin is joined by alpha 1,6 glycosidic linkage. glycogen is a polymer of glucose,long chained with few branches,has alpha 1,4 and1,6 linkagesand is a storage carbohydrate of animals. cellulose is an energy storage carbohydrate in plants ,and structural carbohydrate in cell wall of plants ,is a polymer of glucose,( it has only alpha 1,4 bonds). it's true that in cellulose covalent bonds link glucose monomer and hydrogen bonds to hold long chains together.(even though hydrogen bonds are weak linked in cellulose provide strength to the structure). chitin is used as stutures and is a polysaccharide present in exoskeleton of animals. true lipids are not true polymers because they do not have monomers.(polymers are made of monomers.). true steroids are lipids because they are hydrophobic.

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