Organ systems
metabolism, responsiveness, movement, growth, cellular comostion, reproduction
Characteristics of a living organism
electrons are transferred from metal atom to nonmetal atom
Ionic bond
A covalent bond in which electrons are not shared equally
Polar covalent bond
energy of motion
Kinetic energy
Na+ is best known as a(n):
Ion
Protect the body
Provide vitamin D
Retain water
Regulate body temperatur
Integumentary system functions
A negatively charged ion
Anion
two atoms held together by sharing one pair of electrons
Single covalent bond
Stored energy
Potential energy
What is meant by N2
Two nitrogen atoms formed a molecule
Support the body
Protect the internal organs
Provides leverage for movement
Produce blood cells
Stores calcium
The skeletal system
A positively charged ion
Cation
Hydrogen bond may occur between
Polar molecules
What type of bonds is responsible for the surface tension water
Hydrogen bon
Require input of energy from another source
Endergonic reaction
Regulate body function
Regulates the function of muscles, glands and other tissue through hormones
The endocrine system functions
weak attraction between a hydrogen atom and another atom
Hydrogen bond
Ionic bond results from
the transfer of electrons from a metal to a nonmetal
Catalysts for chemical reactions in living things
Enzymes
energy releasing reactions
Exergonic reaction
Pump and provide Oxygen-poor blood to the lung and oxygen rich blood to the tissues.
Remove waste from the body
Transport cells , nutrients and other substances
The cardiovascular system functions
equal sharing of electrons
Non polar
A polar molecule, with partially postive and partially negative ends
Dipole
process that changes one set of chemicals into another set of chemicals
Chemical reaction
a reaction that involves the transfer of electrons between reactants
Oxidation-reduction reaction