Chemistry In Biology Flashcards
(27 cards)
What is the term for two or more atoms bonded together?
Compound
How are chemical bonds made?
By the opposite attractions between electrons and protons
What is the term for water’s property that lets it stick to itself?
Cohesive
When ice melts it turns from a solid to a liquid - what kind of change is that?
A physical change
What is the term for a chemical bond where electrons are shared?
Covalent Bond
What is the overall charge for an atom?
Neutral
What is the term for the stuff everything is made of?
Matter
Where are electrons found in an atom?
Floating around the nucleus
What is the term for a chemical bond where electrons are completely taken?
Ionic Bond
What is the term for something that speeds up any chemical reaction?
Catalyst
What is the term for something that speeds up a reaction in living things?
Enzyme
What is the term for the building block of matter?
Atom
What is the perm for water’s property that lets it stick to other things?
Adhesive
What is the term for a bond that is caused by negative and positive sides of water molecules?
Hydrogen bond
Is Coke a heterogenous or homogeneous mixture?
Homogeneous
Is a fruit salad a heterogeneous or homogeneous mixture?
Heterogeneous
What element is in ALL organic molecules?
Carbon
What type of bond is the STRONGEST at the atomic level?
Covalent bond
If you eat something amylase will break down the sugar in your saliva and then will evolve into carbon dioxide - what is the catalyst?
The Amylase
Is an element MOST like a compound or atom?
Atom
What is the percent of water that makes up humans?
70%
What is the symbol and charge of:
Neutrons
Neutral 0 with / trough it
What is the symbol and the charge of electrons?
Negative (-)
What is the symbol and the charge for protons?
Positive (+)
