Final Exam All Versions Latest Update/ Verified
Institution: Portage Learning
Course Code: BIOD 101/BIOL 101
Course Title: Essential Biology I
Exam: Final Exam
Assessment Type: Examination
Edition: Updated Version
Student Name: _______________________________
Student Id: _________________________________
Instructor: _________________________________
Instructions:
Answer All Questions.
Choose The Correct Answer
QUESTIONS TYPE:
➢ Multiple Choice:
➢ True Or False:
➢ Explain Or Describe
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,Final Exam All Versions
Name The Three Parts Of A Nucleic Acid Nucleotide.
Sugar, Phosphate Group, Nitrogenous Base
What Are The Particular Types Of Each Of These That Are Found In DNA And What
Are The Corresponding Types That Are Found In RNA?
DNA- Deoxyribose- Phosphate Group- Adenine, Guanine, Cytosine, Thymine
RNA- Ribose -Phosphate Group- Adenine, Guanine, Cytosine, Uracil
What Are The Four Major Differences Btw DNA And RNA?
DNA Contains Deoxyribose - RNA Is Ribose
DNA: Thymine - RNA: Uracil
DNA: Double Stranded Helix - RNA: Single Strand
DNA Is Often Described As A Coiled Ladder. In This Description, What Two Parts Of A
DNA Nucleotide Form The Uprights? What Part Forms The Rungs?
The Uprights Are The Sugar Phosphate Backbone, And The Rungs Are The Bases.
Explain The 2 Differences Btw Hydrolysis And Dehydration Condensation.
During Dehydration Condensation Biomacromolecules Are Synthesized By Joining
Building Block Monomers. A Water Molecule Is Lost And Energy Is Used.
Biomacromolecules Are Broken Down Into Monomers During Hydrolysis When A
Water Molecule Is Added And Energy Is Released.
Tell Whether Each Of The Following Is Carbohydrate, Lipid, Protein, Or Nucleic Acid.
Then Explain The Use Of Each.
,A. GLUCOSE
Carbohydrate; Used As Fuel, Is Referred To As Blood Sugar In Humans And Animals
B. Starch
Carbohydrate; The Form In Which Plants Store Glucose
C. Cellulose
Carbohydrate; Woody Tissue In Plants And Trees, Indigestible Fiber
D. Triglyceride
Lipid; The Major Form Of Fuel Storage That When Broken Down Produces Twice As
Much Energy Per Gram Than Carbohydrates
E. Phospholipid
Lipid; The Major Constituent Of Cell Membranes
F. Hemoglobin
Protein; Carries Oxygen In The Blood
G. DNA
Nucleic Acid; Contains Genetic Material Of Cells
H. RNA
Nucleic Acid; Part Of The Protein-Synthesizing Operation Of The Cell
I. Cholesterol
Lipid; Component Of Animal Cell Membranes That, When In Excess, Can Form Plaque
On Artery Walls
J. ATP
, Nucleic Acid; Releases Energy Through The Breaking Of High-Energy Phosphate Bond
K. Glycogen
Carbohydrate; The Form In Which Animals And Humans Store Glucose
L. Insulin
Protein; A Hormone
Why Are Proteins So Often Used To Build Structures?
Because They Are "Structurally Sophisticated". They Are Strong, Yet Flexible And
Incredibly Diverse.
Explain The Following Terms In Regard To Proteins:
A. Primary Structure
Amino Acid Monomers In A Linear Chain
B. Secondary Structure
2 Repeating Patterns Are Possible; A Spring Like Coil Of Fibrous Proteins Within The
Linear Chain Forms (Alpha-Helix) And/Or In The Linear Chain The Pattern Snakes Back
And Forth; Strong And Flexible But Not Elastic. Both Conformations Held Together
With Hydrogen Bonds. It's Possible That One Chain Can Have Both Patterns
C. Tertiary Structure
Folding Of The Secondary Structure; 3D Shape Determined By R-Group Interactions
And Hydrogen Bonds
D. Quaternary Structure
Interactions Between Two Or More Polypeptide Chains. Each Chain Has Its Own
Primary, Secondary, And Tertiary Structure. Need 2 Or More Polypeptide Chains For
This Structure