Q. What type of bond links nucleotides in an RNA strand?
-
A.
Hydrogen bonds
-
B.
Ionic bonds
-
C.
Peptide bonds
-
D.
Phosphodiester bonds
Solution
Nucleotides in an RNA strand are linked by phosphodiester bonds.
Correct Answer:
D
— Phosphodiester bonds
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Q. What type of carbohydrate is fiber classified as?
-
A.
Simple carbohydrate
-
B.
Complex carbohydrate
-
C.
Sugars
-
D.
Starch
Solution
Fiber is classified as a complex carbohydrate.
Correct Answer:
B
— Complex carbohydrate
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Q. What type of chromatography is commonly used for separating proteins?
-
A.
Gas chromatography
-
B.
Affinity chromatography
-
C.
Paper chromatography
-
D.
Column chromatography
Solution
Affinity chromatography is commonly used for separating proteins based on specific interactions.
Correct Answer:
B
— Affinity chromatography
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Q. What type of chromatography is HPLC classified as?
-
A.
Gas chromatography
-
B.
Liquid chromatography
-
C.
Thin-layer chromatography
-
D.
Paper chromatography
Solution
HPLC is classified as liquid chromatography, as it uses a liquid mobile phase to separate components.
Correct Answer:
B
— Liquid chromatography
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Q. What type of connective tissue provides flexible support and is found in the ear?
-
A.
Hyaline cartilage
-
B.
Elastic cartilage
-
C.
Fibrocartilage
-
D.
Dense irregular connective tissue
Solution
Elastic cartilage provides flexible support and is found in structures such as the external ear.
Correct Answer:
B
— Elastic cartilage
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Q. What type of detector is commonly used in gas chromatography for detecting organic compounds?
-
A.
Flame ionization detector
-
B.
Mass spectrometer
-
C.
Ultraviolet detector
-
D.
Electrochemical detector
Solution
The flame ionization detector is commonly used for detecting organic compounds in gas chromatography.
Correct Answer:
A
— Flame ionization detector
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Q. What type of diarrhea is commonly associated with Vibrio cholerae?
-
A.
Bloody diarrhea
-
B.
Watery diarrhea
-
C.
Mucus diarrhea
-
D.
Fatty diarrhea
Solution
Vibrio cholerae typically causes profuse, watery diarrhea, often described as 'rice-water' stools.
Correct Answer:
B
— Watery diarrhea
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Q. What type of environment do non-sporing anaerobes typically thrive in?
-
A.
High oxygen environments
-
B.
Low pH environments
-
C.
Anaerobic environments
-
D.
Saline environments
Solution
Non-sporing anaerobes thrive in anaerobic environments where oxygen is absent.
Correct Answer:
C
— Anaerobic environments
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Q. What type of epithelium is found in the urinary bladder, allowing for stretching?
-
A.
Simple squamous epithelium
-
B.
Stratified cuboidal epithelium
-
C.
Transitional epithelium
-
D.
Simple columnar epithelium
Solution
Transitional epithelium is specialized to allow stretching and is found in the urinary bladder.
Correct Answer:
C
— Transitional epithelium
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Q. What type of epithelium lines the alveoli of the lungs?
-
A.
Simple cuboidal epithelium
-
B.
Stratified squamous epithelium
-
C.
Simple squamous epithelium
-
D.
Pseudostratified columnar epithelium
Solution
Simple squamous epithelium is found in the alveoli, allowing for efficient gas exchange due to its thin structure.
Correct Answer:
C
— Simple squamous epithelium
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Q. What type of fermentation is primarily anaerobic?
-
A.
Lactic acid fermentation
-
B.
Alcoholic fermentation
-
C.
Acetic acid fermentation
-
D.
All of the above
Solution
All of the listed fermentation types (lactic acid, alcoholic, and acetic acid) are primarily anaerobic processes.
Correct Answer:
D
— All of the above
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Q. What type of fermentation is used to make sauerkraut?
-
A.
Alcoholic fermentation
-
B.
Lactic acid fermentation
-
C.
Acetic acid fermentation
-
D.
Aerobic fermentation
Solution
Sauerkraut is made through lactic acid fermentation, which preserves the cabbage.
Correct Answer:
B
— Lactic acid fermentation
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Q. What type of food is most commonly associated with Vibrio parahaemolyticus infections?
-
A.
Undercooked beef
-
B.
Raw shellfish
-
C.
Unpasteurized juice
-
D.
Dairy products
Solution
Raw shellfish, particularly oysters, are commonly associated with Vibrio parahaemolyticus infections.
Correct Answer:
B
— Raw shellfish
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Q. What type of genetic material can viruses contain?
-
A.
Only DNA
-
B.
Only RNA
-
C.
Both DNA and RNA
-
D.
Neither DNA nor RNA
Solution
Some viruses contain DNA, while others contain RNA; some can even have both.
Correct Answer:
C
— Both DNA and RNA
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Q. What type of genetic material do bacteriophages inject into bacterial cells?
-
A.
RNA
-
B.
DNA
-
C.
Protein
-
D.
Lipids
Solution
Bacteriophages typically inject DNA into bacterial cells, which can then integrate into the host genome.
Correct Answer:
B
— DNA
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Q. What type of genetic material do Retroviridae viruses contain?
-
A.
Double-stranded DNA
-
B.
Single-stranded RNA
-
C.
Double-stranded RNA
-
D.
Single-stranded DNA
Solution
Retroviridae viruses contain single-stranded RNA as their genetic material.
Correct Answer:
B
— Single-stranded RNA
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Q. What type of genome do Astroviruses possess?
-
A.
Single-stranded RNA
-
B.
Double-stranded RNA
-
C.
Single-stranded DNA
-
D.
Double-stranded DNA
Solution
Astroviruses have a single-stranded RNA genome.
Correct Answer:
A
— Single-stranded RNA
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Q. What type of hemolysis is exhibited by Streptococcus pyogenes on blood agar?
-
A.
Alpha hemolysis
-
B.
Beta hemolysis
-
C.
Gamma hemolysis
-
D.
Delta hemolysis
Solution
Streptococcus pyogenes exhibits beta hemolysis on blood agar.
Correct Answer:
B
— Beta hemolysis
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Q. What type of immune response do monoclonal antibodies primarily elicit?
-
A.
Innate immune response
-
B.
Adaptive immune response
-
C.
Inflammatory response
-
D.
Autoimmune response
Solution
Monoclonal antibodies primarily elicit an adaptive immune response by targeting specific antigens.
Correct Answer:
B
— Adaptive immune response
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Q. What type of immune response is primarily involved in fighting Mycobacterium infections?
-
A.
Humoral immunity
-
B.
Cell-mediated immunity
-
C.
Innate immunity
-
D.
Passive immunity
Solution
Cell-mediated immunity is crucial in controlling Mycobacterium infections, particularly tuberculosis.
Correct Answer:
B
— Cell-mediated immunity
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Q. What type of infections can Pseudomonas aeruginosa cause in immunocompromised patients?
-
A.
Only skin infections
-
B.
Only respiratory infections
-
C.
A wide range of infections including pneumonia and sepsis
-
D.
Only urinary tract infections
Solution
Pseudomonas aeruginosa can cause a wide range of infections, including pneumonia, urinary tract infections, and sepsis in immunocompromised patients.
Correct Answer:
C
— A wide range of infections including pneumonia and sepsis
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Q. What type of inflammation is characterized by the presence of pus?
-
A.
Serous inflammation
-
B.
Fibrinous inflammation
-
C.
Suppurative inflammation
-
D.
Chronic inflammation
Solution
Suppurative inflammation is characterized by the formation of pus, which consists of dead neutrophils, bacteria, and tissue debris.
Correct Answer:
C
— Suppurative inflammation
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Q. What type of information can be obtained from UV-Vis spectroscopy?
-
A.
Molecular weight
-
B.
Functional groups
-
C.
Concentration of analytes
-
D.
Crystal structure
Solution
UV-Vis spectroscopy provides information on the concentration of analytes based on their absorbance at specific wavelengths.
Correct Answer:
C
— Concentration of analytes
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Q. What type of information can FTIR spectroscopy provide about a sample?
-
A.
Molecular weight
-
B.
Chemical structure
-
C.
Color properties
-
D.
Electrical conductivity
Solution
FTIR spectroscopy provides information about the chemical structure of a sample by identifying functional groups and molecular bonds.
Correct Answer:
B
— Chemical structure
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Q. What type of interaction stabilizes the secondary structure of peptides?
-
A.
Hydrophobic interactions
-
B.
Ionic interactions
-
C.
Hydrogen bonds
-
D.
Van der Waals forces
Solution
Hydrogen bonds between the backbone amide and carbonyl groups stabilize the secondary structure, such as alpha helices and beta sheets.
Correct Answer:
C
— Hydrogen bonds
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Q. What type of joint is the knee classified as?
-
A.
Hinge joint
-
B.
Ball-and-socket joint
-
C.
Pivot joint
-
D.
Gliding joint
Solution
The knee is classified as a hinge joint, allowing for flexion and extension.
Correct Answer:
A
— Hinge joint
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Q. What type of joint is the shoulder joint classified as?
-
A.
Hinge joint
-
B.
Ball-and-socket joint
-
C.
Pivot joint
-
D.
Saddle joint
Solution
The shoulder joint is classified as a ball-and-socket joint, allowing for a wide range of motion in multiple directions.
Correct Answer:
B
— Ball-and-socket joint
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Q. What type of medium is used to grow bacteria that require specific nutrients?
-
A.
Selective medium
-
B.
Differential medium
-
C.
Enriched medium
-
D.
Agar medium
Solution
Enriched media are used to grow bacteria that require specific nutrients that are not present in standard media.
Correct Answer:
C
— Enriched medium
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Q. What type of metabolism do bacteria that can use sulfur compounds for energy exhibit?
-
A.
Fermentation
-
B.
Aerobic respiration
-
C.
Chemolithotrophy
-
D.
Photosynthesis
Solution
Chemolithotrophy is the metabolism used by bacteria that oxidize inorganic sulfur compounds for energy.
Correct Answer:
C
— Chemolithotrophy
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Q. What type of microorganism is Candida albicans?
-
A.
Bacterium
-
B.
Virus
-
C.
Fungus
-
D.
Protozoan
Solution
Candida albicans is a fungus that can cause infections in humans, particularly in immunocompromised individuals.
Correct Answer:
C
— Fungus
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