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Janssen Bio Ch 2

Mrs. Janssen's Chapter 2 Biology Review

QuestionAnswer
Which type of bond are electrons transferred? ionic
Which type of bond are electrons shared? covalent
What substance DOES the dissolving? solvent
What substance IS dissolved? solute
What kind of substance is made of 2 or more elements? compound
What is a mixture of substances that is the same throughout? solution
How many times weaker are hydrogen bonds than other covalent bonds? 20
How many bases does a polymer have? unlimited
How many bases does a monomer have? 1
What kind of bonds do amino acids form? peptide
What are the reactants that enzymes act on? substrates
What are enzymes made of? proteins
What kind of reaction gives off heat? exothermic
What kind of reaction takes in heat? endothermic
What does a catalyst do to the rate of a reaction? increases
What does a catalyst do to the activation energy of a reaction? decreases
What is the amount of energy required for a chemical reaction to start? activation energy
When both reactants & products are made at the same rate, the reaction is in what? equilibrium
What side of a chemical reaction are the products on? right
What side of a chemical reaction are the reactants on? left
Nucleic acids are made up of a nitrogen base, a phosphate, and what else? sugar
What are proteins made of? amino acids
Fats and oils are made up of glycerol and what else? fatty acids
What model helps explain how enzymes work? lock and key
What is the amount of energy needed to break a bond? bond energy
What is the most basic carbohydrate? monosacchride
What type of bonds do amino acids form? peptide
What is the liquid part of your blood called? plasma
Where is cellulose found? plants
Lipids are made up of fats, oils, and what other molecules? cholesterol
What are the two types of nucleic acids? RNA & DNA
What are proteins made of? amino acids
What is the shape of a cholesterol molecule? ring
Carbon, hydrogen, and what other element make up carbohydrates? oxygen
Compound that removes H+ ions. base
Compound that releases H+ ions acid
Particle with no charge neutron
Negatively charged particle electron
Positively charged particle proton
What kind of bonds are formed when electrons are transferred between elements? ionic
Of all the elements that naturally occur on Earth, how many are found in organisms? 25
What determines the properties of each element? electrons
Which aspect of a chemical reaction is affected by enzymes? rate
The activation energy needed for a chemical reaction is decreased by a what? catalyst
Do stronger acids have lower or higher numbers on the pH scale? lower
What is formed when an atom gains or loses electrons? ion
What is the smallest unit of matter? atom
Created by: jjanssen33
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