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fall final

QuestionAnswer
Biology The study of life
Chemical reaction When one set of chemicals is changed into a different set
What is the energy required for a chemical reaction to get started? Activation energy
Catalyst A sbustance that speeds up the rate of a chemical reaction
A solution containing concentration of H+ ions higher than pure water are called? Acids
What do you call tiny particles of light energy? Photons
What is the difference between eukaryotes and prokaryotes? Eukaryotes have a nucleus and prokayotes don't
Diffusion Movement from high to low
What does it mean when a solution is in equilibrium? Levels of solute are the same inside and out of cell
What is the main difference between active and passive transport? Active requires energy and passive doesn't
Osmosis Movement of water fromm high to low
Organisms that make their own food are called what? Autotrophs producers
Heterotroph Gets energy from other organisms
What do you call the electrons that are available for making bonds? Valence electrons
What does a buffer do? Keep the pH constant
Why does the activity of enzymes usually decrease at temperatures above 40 degrees Celsius? Because the enzyme's shape can change
What term refers to cells having different jobs in an organism? Specialization
What happens to the surface area to volume ratio as cells get larger? The volume gets larger faster than the surface area
What is the difference between and idea and a hypothesis? Hypothesis is an educated guess
What organic compound is the main source of energy for living things? glucose
How are covalent bonds formed? sharing of electrons
How are ionic bonds formed? Atoms that are brought together because of charge differnces
Isotope An atom that has gained or lost neutrons.
Created by: ausshe23
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