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Introduction to Cellular Biochemistry Exam
Questions And Answers (Guaranteed A+)
How do environmental factors affect cells? - answer✔they affect the structure and function of
biological macromolecules
What are 6 environmental factors that affect the cell? - answer✔1. pH
2. Temperature
3. light (energy)
4. salinity
5.solutes (ions, gases, sugars)
6. denaturing agents and detergents
How does pH affect the cell? - answer✔pH differences can cause unfolding of proteins due to
amount of hydrogen ions present that can interact with bonds and disrupt the structure of the
molecule
Which bonds are most affected by pH? - answer✔hydrogen and ionic bonds are the most
sensitive due to the charge nature of pH
How does temperature affect the cell? - answer✔it denatures proteins by breaking noncovalent
bonds, as well as causing slow movement at low temperatures
Which bonds are most affected by temperature? - answer✔noncovalent ( hydrogen bonds) and
ionic bonds at extremely high temperatures
how does light energy affect the cell? - answer✔UV light breaks covalent bonds
how does salinity affect the cell? - answer✔can cause water to leave DNA and other important
parts of the cell via osmosis as well as interacting with intermolecular interactions and affecting
intramolecular forces that allow molecules to fold properly
1|Page
ALL RIGHTS RESERVED.
Introduction to Cellular Biochemistry Exam
Questions And Answers (Guaranteed A+)
How do environmental factors affect cells? - answer✔they affect the structure and function of
biological macromolecules
What are 6 environmental factors that affect the cell? - answer✔1. pH
2. Temperature
3. light (energy)
4. salinity
5.solutes (ions, gases, sugars)
6. denaturing agents and detergents
How does pH affect the cell? - answer✔pH differences can cause unfolding of proteins due to
amount of hydrogen ions present that can interact with bonds and disrupt the structure of the
molecule
Which bonds are most affected by pH? - answer✔hydrogen and ionic bonds are the most
sensitive due to the charge nature of pH
How does temperature affect the cell? - answer✔it denatures proteins by breaking noncovalent
bonds, as well as causing slow movement at low temperatures
Which bonds are most affected by temperature? - answer✔noncovalent ( hydrogen bonds) and
ionic bonds at extremely high temperatures
how does light energy affect the cell? - answer✔UV light breaks covalent bonds
how does salinity affect the cell? - answer✔can cause water to leave DNA and other important
parts of the cell via osmosis as well as interacting with intermolecular interactions and affecting
intramolecular forces that allow molecules to fold properly
1|Page
