skeletas artifact

1. Organic Molecules
• _____________ describes compounds that contain C-C or C-H bonds.
• Carbohydrates- organic compounds containing _______, hydrogen and ________ ; commonly
called sugar and starches.
• Shape of _________ molecule determines its function.
• __________ _______ are the building blocks of proteins.
• Major roles of lips are energy source, ____________ role and integral parts of _____ membrane.
• ____ molecules consists of two long chains of deoxyribonulecotides coiled into double helix
shape.
• DNA functions as the molecule of ____________.
• Nitrogen bases of RNA are adenine, ___________, guanine or cytosine.
• _____________ ______- large molecules can be joined together to form even larger molecules.
• ______ word tells which component is dominant
• Prefix is the component found in a ________ __________.
• __________________- lipid and protein groups combined into a single molecule.
• __________________- carbohydrate and protein.
Cell membranes:
1. Two different kinds of membranes within a cell are ______membrane and membranous
organelles. (plasma)
2. Membranous organelles are sacs and canals made of the same material as the ____ _____.
(plasma membrane)
3. The _____ _____ model is the theory explaining how cell membranes are constructed. (fluid
mosaic)
4. _____ attractions are the forces that hold membranes together. (Chemical)
5. Cholesterol molecules are scattered among the _______ to allow the membrane to function
properly at body temperature. (phospholipids)
6. A cell controls what moves through the membrane by means of membrane _____embedded in
the phospholipid bilayer. (proteins)
7. Some membrane proteins have _______ attached to them, forming glycoproteins that act as
identification markers. (carbohydrates)
Inorganic molecules
Salts
• Reaction between an acid and a base to form a salt and water is
called a _________ ________.

2. • Salts , like acids , and bases are ______ compounds and dissociate in
solution to form (+) and (-) charged ions.
Water
• Water has been called the “____________” because all living
organism require water to survive.
• Any substance that will release a hydrogen ion when in solution is an
____.
Carbohydrates
• ___ carbohydrate compounds contain the elements carbon ,
hydrogen, & oxygen.
• Carbohydrates are divided into three classes which are characterized
by the _____ of the three chains.
1. ________________(simple sugar)
2. _______________( double sugar)
3. ________________(complex sugar)
• The most simple sugar is _____.
Protein
• All proteins are characterized by the presence of four
elements _____ ,____, _____, & ______.
• Proteins in the body can be divided into two broad
categories _______ &______.
• ______ proteins form the structures of the cells, tissues,
and organs of the body.
Amino Acids
• The element that make up a protein molecule are
bonded together to form chemical units called _____
___.
• Levels of “_____” depends on the number of hydrogen
ions a particular acid will release.

3. pH scale
• The pH scale measures _______ & ______.
• pH indicates the _____ of acidity or alkalinity of a
solution.
Buffer
• The constancy of the pH homeostatic mechanism is due
to the presence of a substance called _____.
• Buffers _______ changes in the concentration of __ ions
& ___ ions in our body fluids.
Fill out chart
Chemical Inorganic Formula Electrolytes
Salt
Sodium chloride NaC1 Na⁺ +C1
Calcium chloride CaC1₂
Magnesium chloride MgC1₂
Sodium bicarbonate NaHCO₅
Potassium chloride KC1 K₂+ c1
Potassium sulfate Na₂SO₄
Calcium carbonate CaCo₅
Calcium phosphate 3Ca + 2P0₄