BIOLOGY EXIT EXAM
observation Answer- what is seen or measured
inference Answer- a conclusion based on observation or evidence
hypothesis Answer- a untested prediction
theory Answer- a broad explanation of natural events that is supported by strong evidence
controlled experiment Answer- compares the result of an experiment between two or more groups
experimental group Answer- group being tested or receiving treatment
control group Answer- a study or experiment that does not receive the treatment
placebo Answer- a sugar pill or other "fake " treatment given to the control group so subjects don't know which group they are in.
independent variable Answer- variable that is being tested (plotted on x axis)
dependent variable Answer- variable that is measured at the rn of experiment,results (plotted on y axis)
autotrophs Answer- organism capable of synthesizing its own food
heterotrophs Answer- an organisms that cannot manufacture its own food instead it obtains its food by taking in organic substances
excretion Answer- the process of eliminating or expelling wasted matter
nutrition Answer- the process of by which a living organism assimilates food and uses it for growth and for the replacement of tissue
diffusion Answer- movement of molecules from high to low concentrations which requires no energy.
active transport Answer- molecules moving from low to high concentrations which requires use of energy
osmosis Answer- the diffusion of water into or out of the cell stomates Answer- small holes that allow leaves to exchange the gases used in photosynthesis
guard cells Answer- open and close the stomates
respiration Answer- biochemical process in which organisms get energy by breaking
the bonds of sugar molecules(ATP)
aerobic respiration Answer- process of producing cellular energy which requires oxygen
anaerobic respiration Answer- producing cellular energy without oxygen
photosynthesis Answer- the process where plants takes the radiant energy of the sun and puts it in the bonds of sugar molecules
regulation Answer- coordination and control of other life functions
stimulus Answer- change in environment that you respond to
neuron Answer- a specialized cell that transmits nerve impulses; nerve cell
impulse Answer- an electrical signal carried by nerves
hormone Answer- chemical signals secreted by different glands in body.
receptor molecules Answer- proteins on surface of cell membrane that receive signals from the nervous and endocrine system
organic compounds Answer- compounds that contain carbon
Carbohydrates Answer- simplified sugars that supply energy
lipids Answer- substances that are soluble in nonpolar solventd
Protein Answer- A three dimensional polymer made of monomers of amino acids.
lock and key model Answer- The model of the enzyme that shows the substrate fitting perfectly into the active site
pH Answer- the measurement of the strengths of acids and bases
cells Answer- basic units of life
enzymes Answer- Catalysts for chemical reactions in living things
animal cell Answer- does not have a cell wall or chloroplast and a small vacuole
plant cell Answer- contains a cell wall, chloroplast and large vacuole
observation Answer- what is seen or measured
inference Answer- a conclusion based on observation or evidence
hypothesis Answer- a untested prediction
theory Answer- a broad explanation of natural events that is supported by strong evidence
controlled experiment Answer- compares the result of an experiment between two or more groups
experimental group Answer- group being tested or receiving treatment
control group Answer- a study or experiment that does not receive the treatment
placebo Answer- a sugar pill or other "fake " treatment given to the control group so subjects don't know which group they are in.
independent variable Answer- variable that is being tested (plotted on x axis)
dependent variable Answer- variable that is measured at the rn of experiment,results (plotted on y axis)
autotrophs Answer- organism capable of synthesizing its own food
heterotrophs Answer- an organisms that cannot manufacture its own food instead it obtains its food by taking in organic substances
excretion Answer- the process of eliminating or expelling wasted matter
nutrition Answer- the process of by which a living organism assimilates food and uses it for growth and for the replacement of tissue
diffusion Answer- movement of molecules from high to low concentrations which requires no energy.
active transport Answer- molecules moving from low to high concentrations which requires use of energy
osmosis Answer- the diffusion of water into or out of the cell stomates Answer- small holes that allow leaves to exchange the gases used in photosynthesis
guard cells Answer- open and close the stomates
respiration Answer- biochemical process in which organisms get energy by breaking
the bonds of sugar molecules(ATP)
aerobic respiration Answer- process of producing cellular energy which requires oxygen
anaerobic respiration Answer- producing cellular energy without oxygen
photosynthesis Answer- the process where plants takes the radiant energy of the sun and puts it in the bonds of sugar molecules
regulation Answer- coordination and control of other life functions
stimulus Answer- change in environment that you respond to
neuron Answer- a specialized cell that transmits nerve impulses; nerve cell
impulse Answer- an electrical signal carried by nerves
hormone Answer- chemical signals secreted by different glands in body.
receptor molecules Answer- proteins on surface of cell membrane that receive signals from the nervous and endocrine system
organic compounds Answer- compounds that contain carbon
Carbohydrates Answer- simplified sugars that supply energy
lipids Answer- substances that are soluble in nonpolar solventd
Protein Answer- A three dimensional polymer made of monomers of amino acids.
lock and key model Answer- The model of the enzyme that shows the substrate fitting perfectly into the active site
pH Answer- the measurement of the strengths of acids and bases
cells Answer- basic units of life
enzymes Answer- Catalysts for chemical reactions in living things
animal cell Answer- does not have a cell wall or chloroplast and a small vacuole
plant cell Answer- contains a cell wall, chloroplast and large vacuole
