Friday, September 23, 2011

Macromolecules in cells questions

1.  What is a macromolecule?
A macromolecule refers to a class of usually of large molecules that are important to biologically.  These are very important to cells and important to organisms.  There are four types of macromolecules; proteins, lipids, carbohydrates, and nucleic acids

2. What is a monomer?
A monomer is any or several small molecular structures that maybe chemically bonded together to form long multipart polymer molecules. For example amino acids are natural monomers.

3.  What is a polymer?
A polymer is a large molecule made up of similar or identical subunits called monomers.

4. List the four types of macromolecules.
Proteins, lipids, carbohydrates, and nucleic acids.

5. What are the types of reactions that macromolecules are shown to undergo?
The types of reactions that macromolecules are shown to undergo are condensation and hydrolysis reactions.

6.Describe how monomers are joined together.
Monomers are joined together by gaining other molecules and those molecules attach to each other and then the monomers are joined together. Condensation forms these monomers.

7.Describe how polymers are broken down.
Polymers are broken down by a process called hydrolysis.

8. What is the specific name for the bond between simple sugar monomers?
The name of the bond is glycosidic linkages.

9. Which kind of enzyme joins monomers together?
Protein is the enzyme that joins the monomers together.

10.Describe how you had to arrange the sugar monomers in order to build a polysaccharide.
You have to put the corners together so the oxygens match up and they build a polysaccharide.

11. Which building blocks of macromolecules are not used in building carbohydrates?
Fatty acids and Amino acids

12.Why is sugar stored as glycogen in the human body?
Its stored in the human body because if you ever need a boost of energy it will be there, its bad if its floating around in you that is called diabetes.

13. Why are plant food essential to animal life?
They are important because animals get energy from plants.

14. Describe how starch is digested by animals.
Animals digested starch by saliva in there mouth breaks in down, then it goes through many other digestive systems.

I got all this information from here.

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