BIO CHEMISTRY FINAL EXAM 2026-2027
QUESTIONS AND CORRECT ANSWERS
GRADED A+
What is the function of lipids in cells?
1. energy source/storage
2. structural role in membranes (myelin sheaths)
3. vitamins
4. basis for dye molecules (carotenoids)
What is the function of carbohydrates in cells?
1. structural role in DNA and RNA
2. intermediate in metabolism
3. energy source for cells
In a particular cell, molecule X binds near the active site on an enzyme causing it
to slow catalyzing reactions. Molecules X is called what?
uncompetitive inhibitor
In a particular cell, molecule X binds to an enzyme at the active site causing it to
stop catalyzing reactions. Molecules X is called what?
competitive inhibitor
,A particular lipid is solid at room temperature, so it is called:
fat
A particular lipid is liquid at room temperature, so it is called:
oil
What is the difference between saturated and unsaturated fatty acids?
saturated fatty acid = no double bonds
unsaturated fatty acid = double bonds
PUFA
polyunsaturated fatty acid, 2 or more double bonds
What separates life from non-life?
lipid bilayer surrounding the cell
The secondary structure of a protein is shown with:
,alpha helices
beta sheets
beta turns
The primary sequence of proteins is written ___.
N to C-terminal
The primary sequence of DNA is written ___.
5' to 3'
What is a lipid?
an organic molecule that dissolves in a non-polar solvent
Proteins are catabolized by the ___ pathway.
urea cycle
Fatty acids are catabolized by the ___ pathway.
beta-oxidation
, Glucose is catabolized by the ___ pathway.
glycolysis
FADH2 provides energy by donating electrons and hydrogens to the ___.
ETC
The direct production of ATP occurs as H+ ions flow through ___ into the
mitochondrial matrix.
ATP synthase
The following processes result in either the "production of ATP" or in the
"consumption of ATP." Put each of the following into the appropriate category.
Fructose-6-phosphate form fructose-1,6-bisphophate
consumption of ATP
T/F: According to the module, a compound with a molecular mass of 1,000 g/mol
is considered a macromolecule.
false
macromolecule >5,000 g/mol
QUESTIONS AND CORRECT ANSWERS
GRADED A+
What is the function of lipids in cells?
1. energy source/storage
2. structural role in membranes (myelin sheaths)
3. vitamins
4. basis for dye molecules (carotenoids)
What is the function of carbohydrates in cells?
1. structural role in DNA and RNA
2. intermediate in metabolism
3. energy source for cells
In a particular cell, molecule X binds near the active site on an enzyme causing it
to slow catalyzing reactions. Molecules X is called what?
uncompetitive inhibitor
In a particular cell, molecule X binds to an enzyme at the active site causing it to
stop catalyzing reactions. Molecules X is called what?
competitive inhibitor
,A particular lipid is solid at room temperature, so it is called:
fat
A particular lipid is liquid at room temperature, so it is called:
oil
What is the difference between saturated and unsaturated fatty acids?
saturated fatty acid = no double bonds
unsaturated fatty acid = double bonds
PUFA
polyunsaturated fatty acid, 2 or more double bonds
What separates life from non-life?
lipid bilayer surrounding the cell
The secondary structure of a protein is shown with:
,alpha helices
beta sheets
beta turns
The primary sequence of proteins is written ___.
N to C-terminal
The primary sequence of DNA is written ___.
5' to 3'
What is a lipid?
an organic molecule that dissolves in a non-polar solvent
Proteins are catabolized by the ___ pathway.
urea cycle
Fatty acids are catabolized by the ___ pathway.
beta-oxidation
, Glucose is catabolized by the ___ pathway.
glycolysis
FADH2 provides energy by donating electrons and hydrogens to the ___.
ETC
The direct production of ATP occurs as H+ ions flow through ___ into the
mitochondrial matrix.
ATP synthase
The following processes result in either the "production of ATP" or in the
"consumption of ATP." Put each of the following into the appropriate category.
Fructose-6-phosphate form fructose-1,6-bisphophate
consumption of ATP
T/F: According to the module, a compound with a molecular mass of 1,000 g/mol
is considered a macromolecule.
false
macromolecule >5,000 g/mol
