BIO 105 EXAM 1 TEST QUESTIONS WITH ACCURATE SOLUTIONS- GRADED A+
biology
The study of living organisms and their interactions with one another and their
environmnets
cell
smallest fundamental unit of structure and function in living thiings
biosphere
collection of all living things on earth
community
set of populations inhabiting a particular area
ecosystem
all living things in a particular area together with the abiotic parts
homeostasis
ability of an organism to maintain constant internal condtions
,macromolecule
large molecule, typically formed by joining of smaller molecules
molecule
chemical structure consisting of at least two atoms held together by one or more chemical
bonds
organ
collection of related tissues grouped together
organ system
level of organization that consists of functionally related interacting organs
organelle
small structures that exist within cells and carry out cellular functions
cytosol
gel-like material of the cytoplasm in which cell structures are suspended
desmosome
,linkages between adjacent epithelial cells that form when cadherins in the plasma
membrane attach to intermediate filaments
endomembrane system
group of organelles and membranes in eukaryotic cells that work together modifying,
packaging, and transporting lipids and proteins
endoplasmic reticulum
series of interconnected membranous structures with eukaryotic cells that collectively
modify proteins and synthesize lipids
eukaryotic cell
cell that has a membrane-bound nucleus and several other membrane-bound
compartments or sacs
extracellular matrix
material (primarily collagen, glycoproteins, and proteoglycans) secreted from animals cells
that provides mechanical protection and anchoring for the cells in the tissue
flagellum
plural=flagella; long hair-like structure that extends from the plasma membrane and is
used to move the cell
, gap junction
channel between two adjacent animal cells that allows ions, nutrients, and low molecular
weight substances to pass between cells, enabling the cells to communicate
Golgi apparatus
eukaryotic organelle made up of a series of staked membranes that sorts, tags, and
packages lipids and proteins for distribution
intermediate filament
cytoskeleton component, composed of several intertwined strands of fibrous protein, that
bears tension, supports cell-cell junctions, and anchors cells to extracellular strucures
lysosome
organelle in an animal cell that functions as the cell's digestive component; it breaks down
proteins, polysaccharides, lipids, nucleic acids, and even worn-out organelles
microfilament
narrowest element of the cytoskeleton system; it provides rigidity and shape to the cell and
enables cellular movements
microtubule
biology
The study of living organisms and their interactions with one another and their
environmnets
cell
smallest fundamental unit of structure and function in living thiings
biosphere
collection of all living things on earth
community
set of populations inhabiting a particular area
ecosystem
all living things in a particular area together with the abiotic parts
homeostasis
ability of an organism to maintain constant internal condtions
,macromolecule
large molecule, typically formed by joining of smaller molecules
molecule
chemical structure consisting of at least two atoms held together by one or more chemical
bonds
organ
collection of related tissues grouped together
organ system
level of organization that consists of functionally related interacting organs
organelle
small structures that exist within cells and carry out cellular functions
cytosol
gel-like material of the cytoplasm in which cell structures are suspended
desmosome
,linkages between adjacent epithelial cells that form when cadherins in the plasma
membrane attach to intermediate filaments
endomembrane system
group of organelles and membranes in eukaryotic cells that work together modifying,
packaging, and transporting lipids and proteins
endoplasmic reticulum
series of interconnected membranous structures with eukaryotic cells that collectively
modify proteins and synthesize lipids
eukaryotic cell
cell that has a membrane-bound nucleus and several other membrane-bound
compartments or sacs
extracellular matrix
material (primarily collagen, glycoproteins, and proteoglycans) secreted from animals cells
that provides mechanical protection and anchoring for the cells in the tissue
flagellum
plural=flagella; long hair-like structure that extends from the plasma membrane and is
used to move the cell
, gap junction
channel between two adjacent animal cells that allows ions, nutrients, and low molecular
weight substances to pass between cells, enabling the cells to communicate
Golgi apparatus
eukaryotic organelle made up of a series of staked membranes that sorts, tags, and
packages lipids and proteins for distribution
intermediate filament
cytoskeleton component, composed of several intertwined strands of fibrous protein, that
bears tension, supports cell-cell junctions, and anchors cells to extracellular strucures
lysosome
organelle in an animal cell that functions as the cell's digestive component; it breaks down
proteins, polysaccharides, lipids, nucleic acids, and even worn-out organelles
microfilament
narrowest element of the cytoskeleton system; it provides rigidity and shape to the cell and
enables cellular movements
microtubule
