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68 Cards in this Set

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Chemical Bonding
Atoms in a molecule are joined together by a strong Bond
Structual Formula
H-O-H AND C-O-O AND O-C-O
Molecules
The smallest particle of a substance that retains the chemical and physical properties of the substances and is composed of two or more atoms; a group of like or different atoms held together by chemical forces
Hydrogen
First element on yhe periodic table, hydrogen is truly in class by itself
Oxygen
A gaseous chemical element,0 atomic number eight and atomic weight 15.9994
Atom
Have some number of electrons and protons.Therefore they are electrically Neutral and have no electrical charge
Chemical Energy
Released by energy
Chemical Formula
H2O CO2
Differ
Ptotons Electornics and Neutrons in mass, electrical change and location
Same
Protons and Neutrons have mass
Electrons
Determine chemical properties of atoms

found in space of nucleus

When atoms combine to form compound- electrons shift
Proton
A atable, postively charged subatomic particle in the baryon family having a mass 1836 times that an electron
Carbohydrates
Any of a group of organis compounds that include sugars, startches, celluloses, and gums and source in the diet of animals.
Istopes
One or two atoms having same atomic number but different mass numbers
Oxides
A binary compound of an element or radical with oxygen
Carbon
Anaturally abundant nonmetallic element that occurs in many inorganic and in all organic compounds
Nucleus
The small dense center of the atom. Yhe nucleus is composed of protons and neutrons and has a postive electrical charge
Elementary
Of relating to or constitutions the basic essential or fundamental part
Orbitals
Is the region in which an electron may be found aroung a single atom
Inorganic Compounds
All other compounds
Symbol
Represents each element
Electrical Charge
Postive and Negative Charge

Electrons- Neg.Charge (-)
Protons- Pos.Charge (+)
Neutron-no Charge (0)
Mnemonic Device
Protons Electrons Neutron

(PEN)
Elements
Smallest particle of an element- Atom and has properties of that element

Substances that can not be broken down into simple substances

Two or more join to form a compound

Made of omly one kind of atom one oxygen and Hydrogen

At least one-fifth known elements
Neutron
An electrically neutral subatomic particle in the baryon family, having a mass 1839 times that of the electron stable when bound in an atomic nucleus, and having a mean life time of approximately 1.0*10^3 seconds as a free particle
Matter
Anything thathas mass and occupies space

Can exist as solid liquid and gas
NaCl
Is the chemical short-hand (or formula)for sodium

CI- Chlorine
NA-(latin)-Natrium- sodium
Respiration
Release of energy/ Exchange of gases
Homeostasis
Maintence of a conatant state of Equilibrum despite change in an internal and external environment
Scientific method
Series of steps used by scientists to solve problems
Variable
Factor such as Temp, light intensity that causes change
Control
Recieves no change (Manipulation)
-Standard of comparision
-Recieves only (inactive ingredient)
Observation
Using senses and tools of measurement
Independent variable
The part of a controlled experiment that is manipulated, recieves treatment directly
Dependent Variable
Portion Controlled experiment that is of major concern. Focus and important

-Depends on Indepent Variable
Metabolism
Sum of all living Activites
Nutrition
Taking materials from external environment and change them into a usable form by body
Nutrients
Needed substances (Minerals, Vitamins)
Transport
Distrubtion and absorbtion of materials , such as nutrients Co2, O2, water throughout the body movement between cells and within blood vessels and such
Inter cellular
Communication between cells
Animals
Have highly spacialized systems for carrying needed materials
Aerobic
Requires o2 from air or dissolved H2o (water)
Plants
Have specialized conducting structures that carry substances from roots and leaves to all the rest of the plant
Regulation
Process by which an organism controls and coordinates various acting
Excretion
Removal of waste products from body urine , sweat Co2
Respiration
Process by which organicms obtain needed energy by releasing chemical energy (ATP) stored in Nutrients
Reproduction
Production of offspring
-Generation longevity. Required for continuation of humanity
Anaerobic
Does not require o2
-Simple organisms carryout Anaerobic
Characteristics of life
-Homeostasis
-Metamolism
- Nutrition
-Transport
-Regulation
-Excretion
-reproduction
-Respiration
Intra Cellular
Transport within cells
Sugar
Is chemically burned (oxidized) to provide /give off water and Co2
Biology
Study of life
Biodiversity
Study of living organisms
Mutualistic
A relationship between two species of oraganisms in which both benefit from the association
Cells
The smallest Units that carry on the functions of life
Variation
Is a characteristic an organsim has that makes it better able to survive in its environment
Cell Membrane
A thin membrane around the cytoplasm of a cell' controls passage of substances in and out of the cell
Chloroplasts
Plant cell inclusion bodies that contain chlorophyll. They occur in leaves and young stems
Omnivores
Animals that eat both meat and plants
Carnivore
Animals that only eat meat
Herbivore
Animals that only eat plants
Biotic Factors
Living Things
Abiotic Factors
Non-Living
Features of life
-Movement
-Nutrition
-Respiration
-Lifespan
-Growth
-Development
-Made of cell
- Respond to Stimuli
Made of Cell
Basic unit of life
Stimuli
Something causing or regarded as causong response
Growth
Increase in number or size
Life Span
Is the length of time an organism is expected to live