chemistry 121/chem 121 exam 8 practice exam questions and answers

chemistry 121/chem 121 exam 8 practice exam questions and answers



1) List the four main classes of biochemicals.
Carbohydrates


Proteins


Lipids


Nucleic acids


2) Proteins which are also called polypeptides are formed from amino acid monomer molecules.




Answer Key
NOTE: Answer both questions


1) List the four main classes of biochemicals.



carbohydrates




lipids




proteins




nucleic acids


2)


Proteins

which are also called polypeptides are formed from
amino acid



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, monomer molecules.




Exam Page 2
NOTE: Answer both questions


1) The oxygen transport protein in blood is hemoglobin (name).


2) Globular proteins are soluble in water.




Answer Key
NOTE: Answer both questions


1) The oxygen transport protein in blood is


hemoglobin

(name).
2) Globular proteins are


soluble

in water.



Exam Page 3
NOTE: Answer each question


What type of biomolecule has the highest molecular weights? Nucleic acids


What are the two types of this biomolecule? DNA and RNA


What is the purpose or location in the cell of each type?
DNA is the material that make up cellular chromosomes and RNA is the material that governs the
synthesis of all cellular proteins. Both of them are polymers that are formed by condensation




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