Biology NC EOC Review Exam
Questions and Answers 100% Pass
Cell Wall - ✔✔A rigid structure that surrounds the cells of plants, fungi, many protists,
and most bacteria
Chloroplast - ✔✔A plastid containing chlorophyll; the site of photosynthesis
Chromatin - ✔✔The DNA and proteins in a non-dividing cell
Chromosome - ✔✔DNA and protein in a coiled, rod-shaped form that occurs during
cell division
Cilium (cilia) - ✔✔A short, hairlike organelle that extends from a cell and functions in
locomotion
Cytoplasm - ✔✔The region of a cell between the cell membrane and the nucleus
Cytoskeleton - ✔✔A network of long protein strands in the cytosolthat helps maintain
the size and shape of the eukaryotic cell
Cytosol (cytoplasm) - ✔✔The gelatin like aqueous fluid that bathes the organelles on
the inside of the cell membrane
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,Endoplasmic Reticulum - ✔✔A system of membranous tubes and sacs in eukaroyotic
cells that functions as a path along which molecules move from one part of the cell to
the other
Flagellum (flagella) - ✔✔A hair-like structure made up of microtubles that function in
locomotion
Fluid Mosaic Model - ✔✔A model of cell membranes structure representing the
dynamic nature of membrane lipids and proteins
Golgi Apparatus - ✔✔A system of membranes in eukaryotic cells that modifies protiens
for export by the cell
Lysosome - ✔✔A organelle containing digestive enzymes, existing primarily in animal
cells
Microtubule - ✔✔A hollow tube of protein that constitutes the largest strand in the
cytoskelton
Mitochondria - ✔✔The organelle that is the site of aerobic respiration in eukaryotic cells
Nuclear Envelope - ✔✔A double membrane that surrounds the nucleus of eukaryotic
cells
Nuclear Pore - ✔✔A small hole in the nuclear envelope through which substances pass
between the nucleus and the cytoplasm
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, Ribosome - ✔✔An organelle that funtions in the synthesis of proteins
Rough Endoplasmic Reticulum - ✔✔The portion of the endoplasmic reticulum that
contains attached ribosomes
Selectively Permeable Membrane - ✔✔A membrane that keeps some molecules out but
allows others to pass through
Smooth Endoplasmic Reticulum - ✔✔The portion of the endoplasmic reticulum that
lacks attached ribosomes
Spindle Fiber - ✔✔One of the microtubles that extend across a dividing eukaryotic cell;
assists in the movement of chromosomes
Vacuole - ✔✔A fluid filled organelle that store enzymes of metabolic waste material
Concentration Gradient - ✔✔the difference of a concentration of substance across a
space
Contractile Vacuole - ✔✔an organelle in protists that expels water
Diffusion - ✔✔the process, by which, molecules move from an area of greater
concentration to an area of lesser concentration
Equilibrium - ✔✔a state that exists when the concentration of a substance is equal
throughout a space
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Questions and Answers 100% Pass
Cell Wall - ✔✔A rigid structure that surrounds the cells of plants, fungi, many protists,
and most bacteria
Chloroplast - ✔✔A plastid containing chlorophyll; the site of photosynthesis
Chromatin - ✔✔The DNA and proteins in a non-dividing cell
Chromosome - ✔✔DNA and protein in a coiled, rod-shaped form that occurs during
cell division
Cilium (cilia) - ✔✔A short, hairlike organelle that extends from a cell and functions in
locomotion
Cytoplasm - ✔✔The region of a cell between the cell membrane and the nucleus
Cytoskeleton - ✔✔A network of long protein strands in the cytosolthat helps maintain
the size and shape of the eukaryotic cell
Cytosol (cytoplasm) - ✔✔The gelatin like aqueous fluid that bathes the organelles on
the inside of the cell membrane
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,Endoplasmic Reticulum - ✔✔A system of membranous tubes and sacs in eukaroyotic
cells that functions as a path along which molecules move from one part of the cell to
the other
Flagellum (flagella) - ✔✔A hair-like structure made up of microtubles that function in
locomotion
Fluid Mosaic Model - ✔✔A model of cell membranes structure representing the
dynamic nature of membrane lipids and proteins
Golgi Apparatus - ✔✔A system of membranes in eukaryotic cells that modifies protiens
for export by the cell
Lysosome - ✔✔A organelle containing digestive enzymes, existing primarily in animal
cells
Microtubule - ✔✔A hollow tube of protein that constitutes the largest strand in the
cytoskelton
Mitochondria - ✔✔The organelle that is the site of aerobic respiration in eukaryotic cells
Nuclear Envelope - ✔✔A double membrane that surrounds the nucleus of eukaryotic
cells
Nuclear Pore - ✔✔A small hole in the nuclear envelope through which substances pass
between the nucleus and the cytoplasm
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, Ribosome - ✔✔An organelle that funtions in the synthesis of proteins
Rough Endoplasmic Reticulum - ✔✔The portion of the endoplasmic reticulum that
contains attached ribosomes
Selectively Permeable Membrane - ✔✔A membrane that keeps some molecules out but
allows others to pass through
Smooth Endoplasmic Reticulum - ✔✔The portion of the endoplasmic reticulum that
lacks attached ribosomes
Spindle Fiber - ✔✔One of the microtubles that extend across a dividing eukaryotic cell;
assists in the movement of chromosomes
Vacuole - ✔✔A fluid filled organelle that store enzymes of metabolic waste material
Concentration Gradient - ✔✔the difference of a concentration of substance across a
space
Contractile Vacuole - ✔✔an organelle in protists that expels water
Diffusion - ✔✔the process, by which, molecules move from an area of greater
concentration to an area of lesser concentration
Equilibrium - ✔✔a state that exists when the concentration of a substance is equal
throughout a space
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