GED SCIENCE EXAM QUESTIONS WITH
CORRECT ANSWERS
Cell - Answer-(biology) the basic structural and functional unit of all organisms
Cell Membrane - Answer-thin, flexible barrier around a cell; regulates what enters and
leaves the cell
Cellulose - Answer-polysaccharide consisting of glucose monomers that reinforces
plant-cell walls
Cell Wall - Answer-strong layer around the cell membrane in plants, algae, and some
bacteria
Celsius - Answer-The metric unit of temperature measurement.
Chemotherapy - Answer-the administration of drugs that harm the cancer cells, but that
do not harm the client, or at least do not harm the client as much as the disease does
Chitan - Answer-a carbohydrate polymer that provides structure in shells of insects and
lobsters
Chlorophyll - Answer-any of a group of green pigments found in photosynthetic
organisms
Chloroplast - Answer-organelle found in cells of plants and some other organisms that
captures the energy from sunlight and converts it into chemical energy
Cholesterol - Answer-a type of fat made by the body from saturated fat; a minor part of
fat in foods
Chromsome - Answer-structure in a cells nucleus that contains hereditary material
clay - Answer-a very fine-grained soil that is plastic when moist but hard when fired
climate - Answer-the weather in some location averaged over some long period of time
comet - Answer-space object made of dust and rock particles mixed with frozen water,
methane, and ammonia that forms a bright coma as it approaches the Sun
compound - Answer-(chemistry) a substance formed by chemical union of two or more
elements or ingredients in definite proportion by weight
condensation - Answer-the process of changing from a gaseous to a liquid or solid state
,conductor - Answer-a device designed to transmit electricity, heat, etc.
conglomerate - Answer-a composite rock made up of particles of varying size
conservation - Answer-the preservation and careful management of the environment
and of natural resources
constellation - Answer-A group of stars that form a pattern in the sky
cornea - Answer-transparent anterior portion of the outer covering of the eye
coronary - Answer-the weaking of metal
corpuscle - Answer-either of two types of cells (erythrocytes and leukocytes) and
sometimes including platelets
corrosion - Answer-the gradual wearing away of a metal element due to a chemical
reaction
cyclone - Answer-(meteorology) rapid inward circulation of air masses about a low-
pressure center
cyclotron - Answer-an accelerator that imparts energies of several million electron-volts
to rapidly moving particles
cytoplasm - Answer-a jellylike fluid inside the cell in which the organelles are suspended
decibel - Answer-unit of measurement for the loudness of sounds
deciduous - Answer-Trees and shrubs that shed their leaves at the end of the growing
season
dehydration - Answer-loss of water
Deoxyribonuceic acid - Answer-A kind of nucleic acid containing the sugar, deoxyribose.
Desalination - Answer-the removal of salt (especially from sea water)
diabetes - Answer-any of several metabolic disorders marked by excessive urination
and persistent thirst
diaphragm - Answer-Large, flat muscle at the bottom of the chest cavity that helps with
breathing
diffusion - Answer-the act of dispersing or diffusing something
, digestion - Answer-the organic process by which food is converted into substances that
can be absorbed into the body
disinfectant - Answer-an agent (as heat or radiation or a chemical) that destroys
microorganisms that might carry disease
distillation - Answer-a process used to separate dissolved solids from a liquid, which is
boiled to produce a vapor that is then condensed into a liquid
ebb tide - Answer-outgoing or falling tide
echo - Answer-a reflected sound wave
eclipse - Answer-one celestial body obscures another
ecology - Answer-the branch of biology concerned with the relations between organisms
and their environment
electric current - Answer-a flow of electricity through a conductor
electrolysis - Answer-removing superfluous or unwanted hair by passing an electric
current through the hair root
element - Answer-an artifact that is one of the individual parts of which a composite
entity is made up
embryo - Answer-an animal organism in the early stages of growth and differentiation
that in higher forms merge into fetal stages but in lower forms terminate in
commencement of larval life
emulsifier - Answer-a surface-active agent that promotes the formation of an emulsion
enzyme - Answer-any of several complex proteins that are produced by cells and act as
catalysts in specific biochemical reactions
erosion - Answer-(geology) the mechanical process of wearing or grinding something
down (as by particles washing over it)
esophagus - Answer-the passage between the pharynx and the stomach
estrogen - Answer-a general term for female steroid sex hormones that are secreted by
the ovary and responsible for typical female sexual characteristics
evaporation - Answer-the process by which water changes from liquid form to an
atmospheric gas
CORRECT ANSWERS
Cell - Answer-(biology) the basic structural and functional unit of all organisms
Cell Membrane - Answer-thin, flexible barrier around a cell; regulates what enters and
leaves the cell
Cellulose - Answer-polysaccharide consisting of glucose monomers that reinforces
plant-cell walls
Cell Wall - Answer-strong layer around the cell membrane in plants, algae, and some
bacteria
Celsius - Answer-The metric unit of temperature measurement.
Chemotherapy - Answer-the administration of drugs that harm the cancer cells, but that
do not harm the client, or at least do not harm the client as much as the disease does
Chitan - Answer-a carbohydrate polymer that provides structure in shells of insects and
lobsters
Chlorophyll - Answer-any of a group of green pigments found in photosynthetic
organisms
Chloroplast - Answer-organelle found in cells of plants and some other organisms that
captures the energy from sunlight and converts it into chemical energy
Cholesterol - Answer-a type of fat made by the body from saturated fat; a minor part of
fat in foods
Chromsome - Answer-structure in a cells nucleus that contains hereditary material
clay - Answer-a very fine-grained soil that is plastic when moist but hard when fired
climate - Answer-the weather in some location averaged over some long period of time
comet - Answer-space object made of dust and rock particles mixed with frozen water,
methane, and ammonia that forms a bright coma as it approaches the Sun
compound - Answer-(chemistry) a substance formed by chemical union of two or more
elements or ingredients in definite proportion by weight
condensation - Answer-the process of changing from a gaseous to a liquid or solid state
,conductor - Answer-a device designed to transmit electricity, heat, etc.
conglomerate - Answer-a composite rock made up of particles of varying size
conservation - Answer-the preservation and careful management of the environment
and of natural resources
constellation - Answer-A group of stars that form a pattern in the sky
cornea - Answer-transparent anterior portion of the outer covering of the eye
coronary - Answer-the weaking of metal
corpuscle - Answer-either of two types of cells (erythrocytes and leukocytes) and
sometimes including platelets
corrosion - Answer-the gradual wearing away of a metal element due to a chemical
reaction
cyclone - Answer-(meteorology) rapid inward circulation of air masses about a low-
pressure center
cyclotron - Answer-an accelerator that imparts energies of several million electron-volts
to rapidly moving particles
cytoplasm - Answer-a jellylike fluid inside the cell in which the organelles are suspended
decibel - Answer-unit of measurement for the loudness of sounds
deciduous - Answer-Trees and shrubs that shed their leaves at the end of the growing
season
dehydration - Answer-loss of water
Deoxyribonuceic acid - Answer-A kind of nucleic acid containing the sugar, deoxyribose.
Desalination - Answer-the removal of salt (especially from sea water)
diabetes - Answer-any of several metabolic disorders marked by excessive urination
and persistent thirst
diaphragm - Answer-Large, flat muscle at the bottom of the chest cavity that helps with
breathing
diffusion - Answer-the act of dispersing or diffusing something
, digestion - Answer-the organic process by which food is converted into substances that
can be absorbed into the body
disinfectant - Answer-an agent (as heat or radiation or a chemical) that destroys
microorganisms that might carry disease
distillation - Answer-a process used to separate dissolved solids from a liquid, which is
boiled to produce a vapor that is then condensed into a liquid
ebb tide - Answer-outgoing or falling tide
echo - Answer-a reflected sound wave
eclipse - Answer-one celestial body obscures another
ecology - Answer-the branch of biology concerned with the relations between organisms
and their environment
electric current - Answer-a flow of electricity through a conductor
electrolysis - Answer-removing superfluous or unwanted hair by passing an electric
current through the hair root
element - Answer-an artifact that is one of the individual parts of which a composite
entity is made up
embryo - Answer-an animal organism in the early stages of growth and differentiation
that in higher forms merge into fetal stages but in lower forms terminate in
commencement of larval life
emulsifier - Answer-a surface-active agent that promotes the formation of an emulsion
enzyme - Answer-any of several complex proteins that are produced by cells and act as
catalysts in specific biochemical reactions
erosion - Answer-(geology) the mechanical process of wearing or grinding something
down (as by particles washing over it)
esophagus - Answer-the passage between the pharynx and the stomach
estrogen - Answer-a general term for female steroid sex hormones that are secreted by
the ovary and responsible for typical female sexual characteristics
evaporation - Answer-the process by which water changes from liquid form to an
atmospheric gas
