Biochem test

Biochem test

Question Answer
Anything that takes up space and has mass Matter
Center of the atom Nucleus
Inside the nucleus Protons and neutrons
Protons charge Positive
Neutrons charge Neutral
Found moving around the nucleus Electrons
Electrons charge Negative
# of protons may never change Atomic #
# of protons and neutrons combined Atomic mass
Simplest form of a substance that can't be broken down & retain it's properties Element
Atoms of the same element w different #s of neutrons Isotope
A combination of 2 or more elements that result in new properties Compound
Covalent bond that equally shares electrons Non-polar
Covalent bond that doesn't share equally Polar
Materials at the begging of a reaction Reactants
Materials at the end of a reaction Product
All of water unique properties are bc it is — and makes — easy Polar molecule — hydrogen
Attraction btw. molecules of the same substance Cohesion
Attraction btw. molecules of different substances Adhesion
Refers to the force required to break the attraction btw. water molecules and allows for insects to walk across the surface Surface tension
Any compounds that forms H+ ions in solution Acid
Any compound that forms OH- ions in solution Base
Weak acids/bases that counteract stronger ones and maintain pH concentration Buffer
Hydrocarbon chains are composed of — and — and are good sources of– Hydrogen — carbon — energy
Attach to hydrocarbon chains and determine the properties/jobs of those molecules Functional groups
Macromolecules are formed by the process of –/– w — as a byproduct Dehydration — condensation — water
— reactions breakdown polymers and require — Hydrolysis — water
The process of breaking down old bonds and forming new bonds Chemical reaction
Primary structure Order
Secondary structure Folding/twisting
Tertiary structure Contortions
Quaternary structure 2 or more chains link
When a protein loses its shape Denature
Proteins that act as biological catalysts and speed up reactions Enzymes
Energy needed to start a reaction Activation energy
— will fit into the — of the enzyme where it is held in the best way to facilitate the reaction Substrate — active site
— inhibitors block the active site Competitive
Attach at another point on the enzyme causing it to change shape Non-competive
Product binds to another site on the enzyme shutting down production in Feedback inhibition
Stored energy Potential
Energy from motion Kinetic
Result of sharing electrons Covalent
Made from trasfering electrons Ionic
How do wind and humidity effect evaporative cooling Wind increases the rate of evaporative cooling. Humidity decreases
Lipids that can't hold anymore hydrogen Saturated
Lipids that can hold more hydrogen Unsaturated
Causes a protein to denature Change in: pH levels, temp, salt, or stress
Carbs function Provide energy
Proteins function Control reactions
Nucleic acids function Pass on hereditary

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