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Chemistry of Life
Chapter 2 Anatomy & Physiology
Question | Answer |
---|---|
anything with mass and occupies space is called | Matter |
Consists if a substance that can be either elements or compounds | Matter |
Are known as pure substances | Elements |
they can't be broken down or decomposed into two or more substances | Elements |
Chemical combinations of two or more elements | Compounds |
the 12 elements that make the body function properly is called | Trace elements |
The symbol "O" stands for | Oxygen |
the Symbol "C" Stands for | Carbon |
The Symbol "H" stands for | Hydrogen |
The symbol "N" stands for | Nitrogen |
The symbol "Ca" stands for | Calcium |
the symbol "P" Stands for | Phosphorous |
the symbol "S" stands for | Sulfur |
the symbol "K" stands for | Potassium |
the Symbol "Na" stands for | Sodium |
the Symbol "Cl" stands for | Chlorine |
The symbol "Mg" stands for | Magnesium |
The symbol "Fe" stands for | Iron |
the symbol "Cr" Stands for | Chromium |
the symbol "Co" stands for | Cobalt |
The symbol "Cu" Stands for | Copper |
the symbol "F" Stands for | Fluorine |
the symbol "I" stands for | Iodine |
the symbol "Mn" stands for | Manganese |
elements that consist of particles are called | Atoms |
Particle with a positive electrical charge contained in the nucleus if an atom | Proton |
Particle in an atom that DOES NOT have an electrical charge that is contained in the nucleus of an atom | Neutron |
Protons and Neutrons are packed together in the center of an atom called the | Nucleus |
The number if protons in the nucleus determines the element's | Atomic Number |
The number of protons and neutrons added together is known as it's | Atomic Weight |
Tiny particles with negative charge | Electrons |
An atom of an element that contains a different number of neutrons is called | Isotope |
the nuclei of the isotopes brake down, or decay, and, as they do, they emit radiation. this is called | Radioisotopes |
The process of decay is called | Radioactivity |
Electrons in the outermost shell is called | Valence Electrons |
A combination of two or more atoms held together by a chemical bond | Molecule |
theses are formed when one atom transfers an electron from its outer shell to another atom | Ionic Bonds |
Atoms that change from neutral to negative or positive are called | Ions |
Atoms having a positive charge are called | Cations |
Atoms having a negative charge are called | Anions |
the braking or dissolving or ionic bonds are called | Dissociation |
some compounds give the solution the ability to conduct electricity. this is called | Ionization |
A compound that ionizes when dissolved in suitable ionising solvents such as water (hint: its in smart water) | Electrolytes |
these are formed when two atoms share one or more pairs of electrons as they attempt to fill their outer shells | Covalent bonds |
A weak attraction between a slightly positive hydrogen atom in one molecule and slightly negative oxygen or nitrogen atom in another. | Hydrogen Bond |
The capacity to do work; To put matter into motion | Energy |
Has potential to do work; it's just not doing work at the moment. is called | Potential energy |
Energy in motion is called | Kinetic Energy |
The sum of all chemical reactions in the body is called | Metabolism |
This involves braking down complex compounds into smaller ones | Catabolism |
this involves building larger and more complex chemical molecules from smaller subunits | Anabolism |
Heat speeds up molecular movement is called | Temperature |
When two or more elements combine to create a new substance that has its own chemical properties | Compound |
results in two or more substance blend together rather then chemically combine. | Mixture |
The production of energy in cells is called | Cellular Respiration |
Any substance that releases a hydrogen ion (H+) when dissolved in water | Acid |
these are also called Proton Donors | Acid |
Also called Proton Acceptors | Bases |
A mixture of the hydrogen ion concentration of a solution | pH |
A solution with a pH less then 7 is | Acidic |
Solutions with a pH greater then 7 are | Basic |
Commonly called sugars or starches | Carbohydrates |
Body's main energy source | Carbohydrates |
The primary source of energy used by most of the body's cells | Glucose |
Found in Fruit | Fructose |
it's converted to glucose in the body | Fructose |
Found in Dairy products | Galactose |
the stored form of glucose is called | Glycogen |
the form in which plants store polysaccharides | Starch |
produced by plant cells as part of their cell walls | Cellulose |
this plays a major role in the body by Reserving supply energy | Lipids |
they provide structure to a cell membrane | Lipids |
they act as a cushion to protect organs | Lipids |
a diverse group of lipids that fulfill a wide variety if roles | Steroids |
the one form in which all other steroids are made is | cholesterol |
very large molecules consisting if smaller chemical subunits called amino acids | proteins |
give strength to nails, hair and skin surface | Keratin |
lend structure to bones, cartilage and teeth | collagen |
defend the body against bacteria | Antibodies |
act as catalysts for crucial chemical reactions | Enzymes |
permute muscle contraction | Contractile proteins |
carries oxygen in the blood | hemoglobin |
organic compounds containing an Amino group that are building blocks of proteins | Amino Acids |
the sum of all chemical reactions in the body is called | Metabolism |
the braking down of compounds and releasing energy to do so is called | Catabolism |
Building compounds that require energy is called | Anabolism |
Bonds formed to make a new compound is | Synthesis |
bonds that are broken to form 2 or more smaller molecules are called | Decomposition |
Dissociate in water | Solutes |
Reduces friction in the GI tract and joints | Lubricant |
Requires lots of energy to raise the temperature | High Specific Heat |
a substance that INCREASES the concentration of H+ ions in water | Acid |
A substance that DECREASES the concentration in water | Base |
Also called sugars or saccharides | Carbohydrates |
A single sugar carbohydrate is called | Monosaccharide |
Hexose or 6 carbon sugars | Monosaccharide |
Also called Pentose Sugar | Deoxyribose |
The "D" in DNA | Deoxyribose |
The "R" in RNA | Ribose |
also known as Double-sugar carbohydrates | Disaccharides |
Milk sugar is called | Lactose |
Table sugar is called | Sucrose |
Wheat sugar is called | Maltose |