BIOCHEM 210 FINAL EXAM PORTAGE LEARNING
LATEST UPDATED 2026/2027 A COMPLETE
SOLUTION ALL ANSWERS GET IT 100% CORRECT
VERIFIED BEST GRADED A+ FOR SUCCESS
What element is the basis for life? Describe at least 2 properties of this
element that permit it to serve as the basis for life.
Carbon is described as the element that is the basis for life due its ability
to form:
- covalent bonds with different elements as well as form double and
triple bonds with other carbon atoms and elements, such as N and O
- structures known as polymers, which are long chains of carbon-carbon
bonds.
- cyclic structures called cyclic compounds
Which types of molecules are most likely to be present in membranes?
Phospholipids, sphingolipids, cholesterol, and proteins are all most likely
to be present in membranes. According to the fluid mosaic model, these
molecule work together to form a bilayer membrane through association
with each other.
A group of molecules form a clathrate. What is a clathrate and why does
it form?
A clathrate is a cage structure that forms around a substance that has
been placed in water as a result of the hydrophobic effect. Water orders
itself around the hydrophobic portion of non-polar regions of a substance
to maximize hydrogen bonds. The formation of this structure occurs due
to the spontaneous drive of water to bind to itself through hydrogen
bonds.
What is the fluid mosaic model and what features of the cell does it help
us understand?
,The fluid mosaic model is used to described membrane composition. The
membrane bilayer contains a mixture of proteins and lipid that interact
to maintain life within the cell. Individual membrane molecules are free-
moving, which allows the membrane to move and flow while maintaining
its shape.
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
T/F: Biomolecules can have two or more different functional groups.
true
T/F: The following group is an amine.
C2H5NH2
true
T/F: In a eukaryotic cell, the organelles called peroxisomes serve the
purpose of digesting macromolecules.
false
peroxisomes degrade dangerous/hazardous molecules, lysosomes degrade
macromolecules
T/F: Hydrogen is called the superglue of the chemical world.
, false
carbon = superglue of the world
T/F: Small elements, such as nitrogen, are common in biomolecules.
true
Small elements that are common in biomolecules:
CHOPS N:
- carbon
- hydrogen
- oxygen
- phosphorous
- sulfur
- nitrogen
T/F: The time it takes for a compound to flow through a metabolic
pathway is called the flux.
true
T/F: Proteins, carbohydrates, and fats all get broken down into NADH and
FADH2 in energy production.
true
T/F: A fat is a lipid molecules that is a liquid at room temperature.
false
In RNA, guanine always pairs with:
cytosine
In RNA, adenine always pairs with:
uracil
In DNA, adenine always pairs with:
thymine
LATEST UPDATED 2026/2027 A COMPLETE
SOLUTION ALL ANSWERS GET IT 100% CORRECT
VERIFIED BEST GRADED A+ FOR SUCCESS
What element is the basis for life? Describe at least 2 properties of this
element that permit it to serve as the basis for life.
Carbon is described as the element that is the basis for life due its ability
to form:
- covalent bonds with different elements as well as form double and
triple bonds with other carbon atoms and elements, such as N and O
- structures known as polymers, which are long chains of carbon-carbon
bonds.
- cyclic structures called cyclic compounds
Which types of molecules are most likely to be present in membranes?
Phospholipids, sphingolipids, cholesterol, and proteins are all most likely
to be present in membranes. According to the fluid mosaic model, these
molecule work together to form a bilayer membrane through association
with each other.
A group of molecules form a clathrate. What is a clathrate and why does
it form?
A clathrate is a cage structure that forms around a substance that has
been placed in water as a result of the hydrophobic effect. Water orders
itself around the hydrophobic portion of non-polar regions of a substance
to maximize hydrogen bonds. The formation of this structure occurs due
to the spontaneous drive of water to bind to itself through hydrogen
bonds.
What is the fluid mosaic model and what features of the cell does it help
us understand?
,The fluid mosaic model is used to described membrane composition. The
membrane bilayer contains a mixture of proteins and lipid that interact
to maintain life within the cell. Individual membrane molecules are free-
moving, which allows the membrane to move and flow while maintaining
its shape.
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
T/F: Biomolecules can have two or more different functional groups.
true
T/F: The following group is an amine.
C2H5NH2
true
T/F: In a eukaryotic cell, the organelles called peroxisomes serve the
purpose of digesting macromolecules.
false
peroxisomes degrade dangerous/hazardous molecules, lysosomes degrade
macromolecules
T/F: Hydrogen is called the superglue of the chemical world.
, false
carbon = superglue of the world
T/F: Small elements, such as nitrogen, are common in biomolecules.
true
Small elements that are common in biomolecules:
CHOPS N:
- carbon
- hydrogen
- oxygen
- phosphorous
- sulfur
- nitrogen
T/F: The time it takes for a compound to flow through a metabolic
pathway is called the flux.
true
T/F: Proteins, carbohydrates, and fats all get broken down into NADH and
FADH2 in energy production.
true
T/F: A fat is a lipid molecules that is a liquid at room temperature.
false
In RNA, guanine always pairs with:
cytosine
In RNA, adenine always pairs with:
uracil
In DNA, adenine always pairs with:
thymine
