Podcast
Questions and Answers
What is the most common practice for disinfecting the skin before giving an injection?
What is the most common practice for disinfecting the skin before giving an injection?
- Using a 70% alcohol solution (correct)
- Using a detergent solution
- Using pure isopropyl alcohol
- Using a povidone-iodine antiseptic
Why is a 70% alcohol solution more effective than pure alcohol for disinfecting the skin?
Why is a 70% alcohol solution more effective than pure alcohol for disinfecting the skin?
- The 70% solution is less likely to cause skin irritation
- The 70% solution is more effective at forming a barrier to further alcohol penetration
- The 70% solution is less effective at denaturing and coagulating bacterial surface proteins
- The 70% solution denatures bacterial proteins more slowly, allowing for complete penetration before coagulation (correct)
How do reducing agents disrupt disulfide bonds?
How do reducing agents disrupt disulfide bonds?
- Reducing agents cause the formation of disulfide bonds
- Reducing agents coagulate bacterial surface proteins
- Reducing agents add hydrogen atoms to form thiol groups (correct)
- Reducing agents disrupt hydrogen bonds in proteins
How does microwave radiation disrupt hydrogen bonds in molecules?
How does microwave radiation disrupt hydrogen bonds in molecules?
What is the effect of ultraviolet (UV) radiation from the sun on the skin?
What is the effect of ultraviolet (UV) radiation from the sun on the skin?
How does detergent affect protein structure?
How does detergent affect protein structure?
What causes molecules in globular shapes to extend to longer lengths and entangle?
What causes molecules in globular shapes to extend to longer lengths and entangle?
What does denaturation of a protein refer to?
What does denaturation of a protein refer to?
What happens when a protein is denatured?
What happens when a protein is denatured?
Under what conditions can reversible denaturation occur?
Under what conditions can reversible denaturation occur?
What is the result of irreversible denaturation?
What is the result of irreversible denaturation?
Which of the following can cause protein denaturation by disrupting electrostatic attractions and disulfide bonds?
Which of the following can cause protein denaturation by disrupting electrostatic attractions and disulfide bonds?
What is the unique group found in each amino acid?
What is the unique group found in each amino acid?
How many amino acids are essential to bodily functions?
How many amino acids are essential to bodily functions?
What type of bond is formed when two amino acids come together?
What type of bond is formed when two amino acids come together?
Why are proteins considered important to a person's diet?
Why are proteins considered important to a person's diet?
What structure do many amino acids link together to form?
What structure do many amino acids link together to form?
What makes amino acids the 'building blocks of life'?
What makes amino acids the 'building blocks of life'?
According to the information provided, what is the result when alkaloidal reagents disrupt electrostatic attraction?
According to the information provided, what is the result when alkaloidal reagents disrupt electrostatic attraction?
What is the result when strong acids disrupt electrostatic attraction and hydrogen bonds?
What is the result when strong acids disrupt electrostatic attraction and hydrogen bonds?
Which of the following is NOT a role of alcohol mentioned in the text?
Which of the following is NOT a role of alcohol mentioned in the text?
What is the most preferable concentration of isopropyl alcohol for use as an antiseptic in hospitals?
What is the most preferable concentration of isopropyl alcohol for use as an antiseptic in hospitals?
Which of the following alcohols is mentioned as the most preferable for use as a disinfectant on surfaces?
Which of the following alcohols is mentioned as the most preferable for use as a disinfectant on surfaces?
What do proteins contain that determines the identity of the amino acid?
What do proteins contain that determines the identity of the amino acid?
Which type of proteins are composed of long linear polypeptide chains and are insoluble in water?
Which type of proteins are composed of long linear polypeptide chains and are insoluble in water?
What property describes the compact, water-soluble, and active function proteins like myoglobin and hemoglobin?
What property describes the compact, water-soluble, and active function proteins like myoglobin and hemoglobin?
What is the general formula for an amino acid's structure in zwitterion form?
What is the general formula for an amino acid's structure in zwitterion form?
Which type of proteins are colorless, tasteless, and exhibit many colloidal properties due to their giant size?
Which type of proteins are colorless, tasteless, and exhibit many colloidal properties due to their giant size?
What role do fibrous proteins serve in biological systems?
What role do fibrous proteins serve in biological systems?
