BMSC 230 FINAL REVIEW QUESTIONS
FULL 2026 QUESTIONS WITH ANSWERS
GRADED A
>> Definition of Biochem
Answer: Study of life at a molecular level and the application of the
principles of chemistry to explain biology
>> What are the 4 Major classes of biomolecules?
2. Nucleic Acids
3. Lipids
4. Carbohydrates
Answer: 1. Proteins
>> Does the considerable difference in all living life mean they are different
molecularly?
Answer: All organisms are remarkably uniform at a molecular level
>> What do all organisms use?
Answer: Common building blocks to create common biomolecules (nucleic
acids, proteins, polysaccharides, and lipids)
>> 4 Different Foundations of Life
2. Energy
3. Genetic
4. Evolutionary
Answer: 1. Chemical
,>> What are the four main elements that compose around 98% of most
organisms?
Oxygen
Hydrogen
Nitrogen
Answer: Carbon
>> What are all known life forms based from?
Answer: Carbon
>> How many people could naturally occuring nitrogen in the world feed?
Answer: 4 Billion
>> Who was able to get "bread from air" using nitrogen from the air as fertilizer
Answer: Fritz Haber
>> How much is a human worth?
-Looking at the chemical components like tissues, organs, and biomolecules have
an estimated value of $45 000 000
Answer: -Chemically only less than a dollar
>> What is the next best candidate as the chemical foundation of life?
Answer: Silicon
>> Why does Carbon work better than Silicon?
-C-C bonds release more energy on combustion than S-S bonds
-Combustion of C-C bonds are soluble and remain active in biosphere
Answer: -C-C bonds are stronger than S-S bonds
>> What do functional groups determine?
, Answer: The collective properties of functional groups determine the
structure, function, and propeties of the biomolecule
>> What does understanding the structure-function relationship of biomolecules
help predict?
Answer: Molecular function, complex biology, and rational development of
treatments
>> Conformation
Answer: Flexible spatial arrangment of atoms within a molecule
(changeable without breaking bonds)
>> Configuration
-Conferredby either double bonds or chiral centers
Answer: Fixed spatial arrangement of atoms with a molecule (Not
changeable unless covalent bond is broken)
>> Geometric Isomers
Answer: (Cis-trans) Same chemical formula but different configuration of
groups attached to a non-rotating double bond
>> Cis
Answer: Same side of double bond
>> Trans
Answer: Opposite side of double bond
>> Chiral Carbon
Answer: 4 different substituents attach to a single carbon that can be
arranged differently in space creating 2 stereoisomers
FULL 2026 QUESTIONS WITH ANSWERS
GRADED A
>> Definition of Biochem
Answer: Study of life at a molecular level and the application of the
principles of chemistry to explain biology
>> What are the 4 Major classes of biomolecules?
2. Nucleic Acids
3. Lipids
4. Carbohydrates
Answer: 1. Proteins
>> Does the considerable difference in all living life mean they are different
molecularly?
Answer: All organisms are remarkably uniform at a molecular level
>> What do all organisms use?
Answer: Common building blocks to create common biomolecules (nucleic
acids, proteins, polysaccharides, and lipids)
>> 4 Different Foundations of Life
2. Energy
3. Genetic
4. Evolutionary
Answer: 1. Chemical
,>> What are the four main elements that compose around 98% of most
organisms?
Oxygen
Hydrogen
Nitrogen
Answer: Carbon
>> What are all known life forms based from?
Answer: Carbon
>> How many people could naturally occuring nitrogen in the world feed?
Answer: 4 Billion
>> Who was able to get "bread from air" using nitrogen from the air as fertilizer
Answer: Fritz Haber
>> How much is a human worth?
-Looking at the chemical components like tissues, organs, and biomolecules have
an estimated value of $45 000 000
Answer: -Chemically only less than a dollar
>> What is the next best candidate as the chemical foundation of life?
Answer: Silicon
>> Why does Carbon work better than Silicon?
-C-C bonds release more energy on combustion than S-S bonds
-Combustion of C-C bonds are soluble and remain active in biosphere
Answer: -C-C bonds are stronger than S-S bonds
>> What do functional groups determine?
, Answer: The collective properties of functional groups determine the
structure, function, and propeties of the biomolecule
>> What does understanding the structure-function relationship of biomolecules
help predict?
Answer: Molecular function, complex biology, and rational development of
treatments
>> Conformation
Answer: Flexible spatial arrangment of atoms within a molecule
(changeable without breaking bonds)
>> Configuration
-Conferredby either double bonds or chiral centers
Answer: Fixed spatial arrangement of atoms with a molecule (Not
changeable unless covalent bond is broken)
>> Geometric Isomers
Answer: (Cis-trans) Same chemical formula but different configuration of
groups attached to a non-rotating double bond
>> Cis
Answer: Same side of double bond
>> Trans
Answer: Opposite side of double bond
>> Chiral Carbon
Answer: 4 different substituents attach to a single carbon that can be
arranged differently in space creating 2 stereoisomers
