STRUCTURE AND FUNCTION OF CELLS MEMBRANE
FINAL EXAM GUIDE 2025
|MOST COMMON QUESTIONS WITH CORRECTLY
VERIFIED ANSWERS|ALREADY A+
GRADED|GUARANTEED PASS
Cell - Simplest collection of matter that can be alive.
Microscopy - Technique to visualize cells using microscopes.
Light Microscope (LM) - Uses visible light to magnify specimens.
Magnification - Ratio of image size to real size.
Resolution - Clarity of image; minimum distance of distinguishable points.
Contrast - Visible differences in brightness between sample parts.
Electron Microscope (EM) - Uses electron beams to study subcellular structures.
Scanning Electron Microscope (SEM) - Provides 3-D images by focusing electrons on
surfaces.
Transmission Electron Microscope (TEM) - Studies internal structures by passing
electrons through specimens.
Super-resolution Microscopy - Distinguishes structures as small as 10-20 nm.
Fluorescence Microscopy - Uses fluorescent markers to enhance detail visibility.
Confocal Microscopy - Provides sharper images of 3D tissues and cells.
Deconvolution Microscopy - Improves image clarity of 3D structures.
Standard Light Microscopy - Resolution too low for studying organelles.
Cell Components Staining - Enhances contrast for better visualization of cells.
Common Cell Size - Most plant and animal cells are about 10 μm.
, Human Egg Size - Human egg measures approximately 100 μm.
Bacterial Size - Most bacteria range from 1 μm to 10 μm.
Virus Size - Viruses typically range around 100 nm.
Ribosome Size - Ribosomes measure about 10 nm.
Small Molecule Size - Small molecules are approximately 1 nm.
Cell Fractionation - Process separating organelles from cells.
Centrifugation - Technique using centrifugal force to separate components.
Homogenization - Breaking down cells to create a homogenate.
Supernatant - Liquid above the pellet after centrifugation.
Pellet - Solid residue formed at the bottom after centrifugation.
Differential Centrifugation - Sequential centrifugation at increasing speeds.
Eukaryotic Cells - Cells with membrane-bound organelles and nucleus.
Prokaryotic Cells - Cells without a nucleus or membrane-bound organelles.
Plasma Membrane - Selective barrier regulating cell's internal environment.
Cytosol - Semifluid substance within the plasma membrane.
Ribosomes - Molecular machines synthesizing proteins in cells.
Nucleoid - Region in prokaryotic cells containing DNA.
Surface Area to Volume Ratio - Critical metric affecting cell size and function.
Metabolic Requirements - Limitations on cell size based on metabolic needs.
Organelles - Specialized structures within eukaryotic cells.
Chromosomes - Structures carrying genetic information.
Cytoplasm - Region between plasma membrane and nucleus.
Membrane-bound Organelles - Organelles enclosed by lipid membranes in eukaryotes.
Fimbriae - Hair-like structures aiding bacterial attachment.
FINAL EXAM GUIDE 2025
|MOST COMMON QUESTIONS WITH CORRECTLY
VERIFIED ANSWERS|ALREADY A+
GRADED|GUARANTEED PASS
Cell - Simplest collection of matter that can be alive.
Microscopy - Technique to visualize cells using microscopes.
Light Microscope (LM) - Uses visible light to magnify specimens.
Magnification - Ratio of image size to real size.
Resolution - Clarity of image; minimum distance of distinguishable points.
Contrast - Visible differences in brightness between sample parts.
Electron Microscope (EM) - Uses electron beams to study subcellular structures.
Scanning Electron Microscope (SEM) - Provides 3-D images by focusing electrons on
surfaces.
Transmission Electron Microscope (TEM) - Studies internal structures by passing
electrons through specimens.
Super-resolution Microscopy - Distinguishes structures as small as 10-20 nm.
Fluorescence Microscopy - Uses fluorescent markers to enhance detail visibility.
Confocal Microscopy - Provides sharper images of 3D tissues and cells.
Deconvolution Microscopy - Improves image clarity of 3D structures.
Standard Light Microscopy - Resolution too low for studying organelles.
Cell Components Staining - Enhances contrast for better visualization of cells.
Common Cell Size - Most plant and animal cells are about 10 μm.
, Human Egg Size - Human egg measures approximately 100 μm.
Bacterial Size - Most bacteria range from 1 μm to 10 μm.
Virus Size - Viruses typically range around 100 nm.
Ribosome Size - Ribosomes measure about 10 nm.
Small Molecule Size - Small molecules are approximately 1 nm.
Cell Fractionation - Process separating organelles from cells.
Centrifugation - Technique using centrifugal force to separate components.
Homogenization - Breaking down cells to create a homogenate.
Supernatant - Liquid above the pellet after centrifugation.
Pellet - Solid residue formed at the bottom after centrifugation.
Differential Centrifugation - Sequential centrifugation at increasing speeds.
Eukaryotic Cells - Cells with membrane-bound organelles and nucleus.
Prokaryotic Cells - Cells without a nucleus or membrane-bound organelles.
Plasma Membrane - Selective barrier regulating cell's internal environment.
Cytosol - Semifluid substance within the plasma membrane.
Ribosomes - Molecular machines synthesizing proteins in cells.
Nucleoid - Region in prokaryotic cells containing DNA.
Surface Area to Volume Ratio - Critical metric affecting cell size and function.
Metabolic Requirements - Limitations on cell size based on metabolic needs.
Organelles - Specialized structures within eukaryotic cells.
Chromosomes - Structures carrying genetic information.
Cytoplasm - Region between plasma membrane and nucleus.
Membrane-bound Organelles - Organelles enclosed by lipid membranes in eukaryotes.
Fimbriae - Hair-like structures aiding bacterial attachment.
