Biology 102

Frage	Antworten
What is biology?	The science of life
What are the 6 characteristics of life?	Composed of 1 or more cells Reproduce using DNA Obtain energy Sense and respond to environment Maintain homeostasis Can evolve as a groups
Matter	Anything that has mass and occupies a volume of space
Elements	Substances that cannot be broken down or transforms chemical into other substances
Atom	Fundamental unit of matter
Protons	Positively charged
Neutrons	No charge
Protons and neutrons compose what?	Protons and neutrons
Electrons	Negatively charged and fill shells around the nucleus
Molecule	Made up of more then one atom
Compound	A chemical Structure containing multiple elements
Molecules form through ______ bonds between atoms	Chemical
Stable atoms	Neon and Helium, full outer electron shell
Reactive atoms	Carbon and Oxygen, have partially full outer electron shells
Covalent bonds	The sharing of electrons
Ionic bonds	A complete transfer of electrons
Hydrogen bonds	A positive charge on one molecule is attracted to a negative charge in another molecule

Zusammenfassung der Ressource

	Erstellt von Kiley Sheehan vor fast 10 Jahre