Biochemistry

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Q. Which type of gel is commonly used for DNA electrophoresis?
  • A. Agarose gel
  • B. Polyacrylamide gel
  • C. Cellulose acetate
  • D. Starch gel
Q. Which type of immune response is characterized by the rapid response to a previously encountered pathogen?
  • A. Primary response
  • B. Secondary response
  • C. Innate response
  • D. Adaptive response
Q. Which type of lipid is most commonly found in cell membranes?
  • A. Triglycerides
  • B. Phospholipids
  • C. Sterols
  • D. Fatty acids
Q. Which type of molecules can easily pass through the lipid bilayer of the cell membrane?
  • A. Ions
  • B. Large polar molecules
  • C. Small nonpolar molecules
  • D. Glucose
Q. Which type of nuclei is most commonly analyzed using NMR spectroscopy?
  • A. Carbon-12
  • B. Hydrogen-1
  • C. Oxygen-16
  • D. Nitrogen-14
Q. Which type of nucleic acid is primarily involved in protein synthesis?
  • A. DNA
  • B. mRNA
  • C. tRNA
  • D. rRNA
Q. Which type of RNA is involved in the splicing of pre-mRNA?
  • A. mRNA
  • B. tRNA
  • C. rRNA
  • D. snRNA
Q. Which type of RNA is primarily involved in carrying the genetic code from DNA to the ribosome?
  • A. rRNA
  • B. tRNA
  • C. mRNA
  • D. snRNA
Q. Which type of RNA is responsible for carrying genetic information from DNA to the ribosome?
  • A. Transfer RNA (tRNA)
  • B. Ribosomal RNA (rRNA)
  • C. Messenger RNA (mRNA)
  • D. Small nuclear RNA (snRNA)
Q. Which type of sample can be analyzed using FTIR spectroscopy?
  • A. Only solids
  • B. Only liquids
  • C. Only gases
  • D. Solids, liquids, and gases
Q. Which type of spectroscopy is commonly used to determine the concentration of a substance in solution?
  • A. Nuclear Magnetic Resonance (NMR)
  • B. Mass Spectrometry (MS)
  • C. Ultraviolet-Visible (UV-Vis)
  • D. Fluorescence Spectroscopy
Q. Which type of spectroscopy is particularly useful for studying protein structures?
  • A. Infrared Spectroscopy
  • B. Raman Spectroscopy
  • C. Nuclear Magnetic Resonance (NMR)
  • D. Ultraviolet-Visible (UV-Vis)
Q. Which type of transport requires energy to move substances across the cell membrane?
  • A. Passive transport
  • B. Facilitated diffusion
  • C. Active transport
  • D. Osmosis
Q. Which type of white blood cell is primarily responsible for producing antibodies?
  • A. T cells
  • B. B cells
  • C. Natural killer cells
  • D. Neutrophils
Q. Which vitamin acts as a coenzyme in the metabolism of amino acids?
  • A. Vitamin B6
  • B. Vitamin B12
  • C. Vitamin C
  • D. Vitamin D
Q. Which vitamin deficiency is associated with night blindness?
  • A. Vitamin A
  • B. Vitamin B2
  • C. Vitamin C
  • D. Vitamin E
Q. Which vitamin is a coenzyme for the conversion of pyruvate to acetyl-CoA?
  • A. Vitamin B1
  • B. Vitamin B2
  • C. Vitamin B3
  • D. Vitamin B5
Q. Which vitamin is a precursor for the coenzyme involved in the TCA cycle?
  • A. Vitamin C
  • B. Vitamin B1
  • C. Vitamin B2
  • D. Vitamin B3
Q. Which vitamin is essential for the proper functioning of the enzyme that converts homocysteine to methionine?
  • A. Vitamin B6
  • B. Vitamin B12
  • C. Vitamin C
  • D. Folate
Q. Which vitamin is known for its role in calcium absorption?
  • A. Vitamin A
  • B. Vitamin C
  • C. Vitamin D
  • D. Vitamin K
Q. Which vitamin is primarily involved in the synthesis of collagen?
  • A. Vitamin A
  • B. Vitamin B12
  • C. Vitamin C
  • D. Vitamin D
Q. Which wavelength range is typically used in UV luminance spectroscopy?
  • A. 200-300 nm
  • B. 300-400 nm
  • C. 400-500 nm
  • D. 500-600 nm
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