CHEM 210 Biochemistry Final Exam ()
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Explain the common similarity between prokaryotic and eukaryotic cells in at least 2 sentences. - correct
answer The fundamental similarity between prokaryotic and eukaryotic cells is the presence of a
plasma membrane. This structure separates life from non-life. It acts as a barrier to the surrounding
environment, but contains proteins that permit select molecules to enter and exit the cell.
Would a scientist be more likely to find an element such as O in a biomolecule or W? Explain which they
would more likely find and give specific physical/chemical properties. - correct answer A scientists
would be more likely to find an element such as O in a biomolecule. Larger elements such as W tend to
form ionic bonds, while smaller elements like O tend to form more stable covalent bonds. Therefore,
elements such as O are more favored by biomolecules because they tend to form stronger bonds by
sharing electrons and forming significant overlap with other elements. As a result, these stronger bonds
require a substantial amount of energy to break them and allows the bonds to withstand insults, such as
thermal and mechanical stress.
Describe at least 3 properties of carbon the permit it to be the basis of life. - correct answer 1. Carbon
can form strong covalent bonds with a variety of different elements.
2. Carbon can also form double and triple bonds with other carbons atoms as well as with other
elements, such as nitrogen and oxygen.
3. Carbon can form long chains through bonding with other carbons to create long polymers.
4. Carbon can also form cyclic structures, also referred to as ring compounds.
What is the definition of inorganic chemistry? How does it different from organic chemistry - correct
answer Inorganic chemistry is the study of minerals, metals, and other non-carbon compounds.
Organic chemistry is the study of the chemical and physical properties of carbon.
, Biochemists study the communication within and around organisms. According to the module, what are
2 other aspects of living organisms that biochemists study? - correct answer 1. The relationship
between structure and function of biomolecules
2. Chemical reactions of organisms (metabolism)
3. Communication within and among organisms
T/F: Hydrogen is called the superglue of the chemical world. - correct answer false
carbon = superglue of the world
T/F: Small elements, such as nitrogen, are common in biomolecules. - correct answer true
Small elements that are common in biomolecules: - correct answer 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. - correct
answer true
T/F: Proteins, carbohydrates, and fats all get broken down into NADH and FADH2 in energy production. -
correct answer true
T/F: A fat is a lipid molecules that is a liquid at room temperature. - correct answer false
In RNA, guanine always pairs with: - correct answer cytosine
Portage Learning Questions and Verified Answers, 100%
Guarantee Pass
Explain the common similarity between prokaryotic and eukaryotic cells in at least 2 sentences. - correct
answer The fundamental similarity between prokaryotic and eukaryotic cells is the presence of a
plasma membrane. This structure separates life from non-life. It acts as a barrier to the surrounding
environment, but contains proteins that permit select molecules to enter and exit the cell.
Would a scientist be more likely to find an element such as O in a biomolecule or W? Explain which they
would more likely find and give specific physical/chemical properties. - correct answer A scientists
would be more likely to find an element such as O in a biomolecule. Larger elements such as W tend to
form ionic bonds, while smaller elements like O tend to form more stable covalent bonds. Therefore,
elements such as O are more favored by biomolecules because they tend to form stronger bonds by
sharing electrons and forming significant overlap with other elements. As a result, these stronger bonds
require a substantial amount of energy to break them and allows the bonds to withstand insults, such as
thermal and mechanical stress.
Describe at least 3 properties of carbon the permit it to be the basis of life. - correct answer 1. Carbon
can form strong covalent bonds with a variety of different elements.
2. Carbon can also form double and triple bonds with other carbons atoms as well as with other
elements, such as nitrogen and oxygen.
3. Carbon can form long chains through bonding with other carbons to create long polymers.
4. Carbon can also form cyclic structures, also referred to as ring compounds.
What is the definition of inorganic chemistry? How does it different from organic chemistry - correct
answer Inorganic chemistry is the study of minerals, metals, and other non-carbon compounds.
Organic chemistry is the study of the chemical and physical properties of carbon.
, Biochemists study the communication within and around organisms. According to the module, what are
2 other aspects of living organisms that biochemists study? - correct answer 1. The relationship
between structure and function of biomolecules
2. Chemical reactions of organisms (metabolism)
3. Communication within and among organisms
T/F: Hydrogen is called the superglue of the chemical world. - correct answer false
carbon = superglue of the world
T/F: Small elements, such as nitrogen, are common in biomolecules. - correct answer true
Small elements that are common in biomolecules: - correct answer 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. - correct
answer true
T/F: Proteins, carbohydrates, and fats all get broken down into NADH and FADH2 in energy production. -
correct answer true
T/F: A fat is a lipid molecules that is a liquid at room temperature. - correct answer false
In RNA, guanine always pairs with: - correct answer cytosine
