BIO 103 FINAL EXAM 2026/2027 WITH
ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|CURRENTLY TESTING QUESTIONS AND
SOLUTIONS|ALREADY GRADED
A+|NEWEST |JUST
RELEASED!!|GUARANTEED PASS
Carbon-18 Is a radioactive isotope of the stable carbon-12. Fluorine-18 is the stable atom of the
element fluorine. What is the key difference between fluorine-18 and carbon-18?
a) fluorine-18 has more protons than carbon-18
b) carbon-18 has more protons than fluorine-18
c) fluorine-18 has more neutrons than carbon-18
d) carbon-18 has more electrons than fluorine-18
e) none of the above
fluorine-18 has more protons than carbon-18
beta decay refers to the loss of neutrons from elemental isotopes during a defined period of
time. Element B-7 is a radioactive isotope with 3 extra neutrons whose beta decay is 5 years. In
15 years Element B-7 become what?
Ion B-4
Isotop A-4
Proton A-4
Element B-4
None of the above
1|Page
,element b-4
a polar covalent bond between element a (high electronegative) and element B (less
electronegative) will likely have the shared electrons found where?
exactly in between element A and B
closer to element A
closer to element B
The question does not have enough information to answer this
none of the above
closer to element a
water is a polar covalent molecule. what bond formation resulting directly from polarity of
water, is a key contributor of the many unique properties of water
oxygen bond
phosphate bond
nitrogen bond
hydrogen bond
sulfur bond
hydrogen bond
this is the organelle where protein are synthesized, it is characterized by the presence of
ribosomes on its surface:
smooth ER
rough ER
Smooth transport vesicles
rough transport vesicles
none of the above
2|Page
,rough ER
the chemical groups found on an organic molecule that gives each molecule unique and specific
properties are referred to as what
special groups
side chains
functional groups
activity group
functional groups
in terms of biological molecules, what is the key difference in the composition of RNA that
differentiates it from DNA?
a) RNA contains cellulose and DNA contains starch
b) RNA contains sugar and DNA contains amino acids
c) RNA contains ribose and DNA contains deoxyribose
d) RNA contains rubisco and DNA contains deoxyrubisco
FNA contains Ribose and DNA deoxyribose
Which of the following traits is NOT found in all cells?
plasma membrane
DNA
nuclear membrane
ribosomes
nuclear membrane
The thickest of the three components of the cytoskeleton is
actin
3|Page
, intermediate filaments
microtubules
collagen
microtubules
building block of the microtubules is
actin
intermediate filaments
microtubules
collagen
actin
water moving across a plasma membrane freely but salt requiring the help of a transport
protein is an example fo what property of the plasma membrane
porosity
unsaturated permeability
selective permeability
mosaicity
selective permeability
the primary purpose of microfilaments is
be the "Roads" of the cell
provide shape for the cell
provide support for the nucleus
traffic organelles within the cell
provide shape for the cell
4|Page
ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|CURRENTLY TESTING QUESTIONS AND
SOLUTIONS|ALREADY GRADED
A+|NEWEST |JUST
RELEASED!!|GUARANTEED PASS
Carbon-18 Is a radioactive isotope of the stable carbon-12. Fluorine-18 is the stable atom of the
element fluorine. What is the key difference between fluorine-18 and carbon-18?
a) fluorine-18 has more protons than carbon-18
b) carbon-18 has more protons than fluorine-18
c) fluorine-18 has more neutrons than carbon-18
d) carbon-18 has more electrons than fluorine-18
e) none of the above
fluorine-18 has more protons than carbon-18
beta decay refers to the loss of neutrons from elemental isotopes during a defined period of
time. Element B-7 is a radioactive isotope with 3 extra neutrons whose beta decay is 5 years. In
15 years Element B-7 become what?
Ion B-4
Isotop A-4
Proton A-4
Element B-4
None of the above
1|Page
,element b-4
a polar covalent bond between element a (high electronegative) and element B (less
electronegative) will likely have the shared electrons found where?
exactly in between element A and B
closer to element A
closer to element B
The question does not have enough information to answer this
none of the above
closer to element a
water is a polar covalent molecule. what bond formation resulting directly from polarity of
water, is a key contributor of the many unique properties of water
oxygen bond
phosphate bond
nitrogen bond
hydrogen bond
sulfur bond
hydrogen bond
this is the organelle where protein are synthesized, it is characterized by the presence of
ribosomes on its surface:
smooth ER
rough ER
Smooth transport vesicles
rough transport vesicles
none of the above
2|Page
,rough ER
the chemical groups found on an organic molecule that gives each molecule unique and specific
properties are referred to as what
special groups
side chains
functional groups
activity group
functional groups
in terms of biological molecules, what is the key difference in the composition of RNA that
differentiates it from DNA?
a) RNA contains cellulose and DNA contains starch
b) RNA contains sugar and DNA contains amino acids
c) RNA contains ribose and DNA contains deoxyribose
d) RNA contains rubisco and DNA contains deoxyrubisco
FNA contains Ribose and DNA deoxyribose
Which of the following traits is NOT found in all cells?
plasma membrane
DNA
nuclear membrane
ribosomes
nuclear membrane
The thickest of the three components of the cytoskeleton is
actin
3|Page
, intermediate filaments
microtubules
collagen
microtubules
building block of the microtubules is
actin
intermediate filaments
microtubules
collagen
actin
water moving across a plasma membrane freely but salt requiring the help of a transport
protein is an example fo what property of the plasma membrane
porosity
unsaturated permeability
selective permeability
mosaicity
selective permeability
the primary purpose of microfilaments is
be the "Roads" of the cell
provide shape for the cell
provide support for the nucleus
traffic organelles within the cell
provide shape for the cell
4|Page
