Campbell Biology In Focus Chapter 4 Test Review
Questions and Answers Rated 100% Correct
Light Microscope - Answer An optical instrument with lenses that refact visible light to magnify images
of specimens
Light Microscope - Answer An optical instrument with lenses that refract (bend) visible light to magnify
images of specimens.
Organelles - Answer A membrane-enclosed structure with a specialized function within a cell.
Electron Microscope - Answer Microscope that forms an image by focusing beams of electrons onto a
specimen.
Transmission Electron Microscope - Answer An electron microscope used to study the internal structure
of thin sections of cells
Scanning Electron Microscope - Answer An electron microscope used to study the fine details of cell
surfaces
Scanning Electron Microscope - Answer SEM
Transmission Electron Microscope - Answer TEM
Cell Fractionation - Answer Technique in which cells are broken into pieces and the different cell parts
are separated
Prokaryotic Cell - Answer A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed
organelles; found only in the domains Bacteria and Archaea. "Before Neculeus"
, Eukaryotic Cell - Answer A type of cell with a membrane-enclosed nucleus and membrane-enclosed
organelles. Examples of organisms with these cells are protists, plants, fungi, and animals. "True
Nucleous"
Cytoplasm - Answer A jellylike fluid inside the cell in which the organelles are suspended
Plasma Membrane - Answer A selectively-permeable phospholipid bilayer forming the boundary of the
cells
Nucleus - Answer Control center of the cell. Contains DNA.
Nuclear Envelope - Answer A double membrane that surrounds the nucleus in the cell
Nuclear Lamina - Answer A netlike array of protein filaments lining the inner surface of the nuclear
envelope; it helps maintain the shape of the nucleus.
Chromosomes - Answer DNA Structures that carry genetic information
Chromatin - Answer DNA and protein that makes up chromosomes
Nucleolus - Answer A specialized structure in the nucleus, formed from various chromosomes and active
in the synthesis of ribosomes
Ribosomes - Answer A cell organelle composed of RNA and protein; the site of protein synthesis.
Endomembrane System - Answer A network of membranes that includes the nuclear envelope, ER, golgi
apparatus, lysosomes, various vesicles and vacuoles, and the plasma membrane.
Vesicles - Answer A sac made of membrane inside of cells
Questions and Answers Rated 100% Correct
Light Microscope - Answer An optical instrument with lenses that refact visible light to magnify images
of specimens
Light Microscope - Answer An optical instrument with lenses that refract (bend) visible light to magnify
images of specimens.
Organelles - Answer A membrane-enclosed structure with a specialized function within a cell.
Electron Microscope - Answer Microscope that forms an image by focusing beams of electrons onto a
specimen.
Transmission Electron Microscope - Answer An electron microscope used to study the internal structure
of thin sections of cells
Scanning Electron Microscope - Answer An electron microscope used to study the fine details of cell
surfaces
Scanning Electron Microscope - Answer SEM
Transmission Electron Microscope - Answer TEM
Cell Fractionation - Answer Technique in which cells are broken into pieces and the different cell parts
are separated
Prokaryotic Cell - Answer A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed
organelles; found only in the domains Bacteria and Archaea. "Before Neculeus"
, Eukaryotic Cell - Answer A type of cell with a membrane-enclosed nucleus and membrane-enclosed
organelles. Examples of organisms with these cells are protists, plants, fungi, and animals. "True
Nucleous"
Cytoplasm - Answer A jellylike fluid inside the cell in which the organelles are suspended
Plasma Membrane - Answer A selectively-permeable phospholipid bilayer forming the boundary of the
cells
Nucleus - Answer Control center of the cell. Contains DNA.
Nuclear Envelope - Answer A double membrane that surrounds the nucleus in the cell
Nuclear Lamina - Answer A netlike array of protein filaments lining the inner surface of the nuclear
envelope; it helps maintain the shape of the nucleus.
Chromosomes - Answer DNA Structures that carry genetic information
Chromatin - Answer DNA and protein that makes up chromosomes
Nucleolus - Answer A specialized structure in the nucleus, formed from various chromosomes and active
in the synthesis of ribosomes
Ribosomes - Answer A cell organelle composed of RNA and protein; the site of protein synthesis.
Endomembrane System - Answer A network of membranes that includes the nuclear envelope, ER, golgi
apparatus, lysosomes, various vesicles and vacuoles, and the plasma membrane.
Vesicles - Answer A sac made of membrane inside of cells
