Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/36

Click to flip

36 Cards in this Set

  • Front
  • Back
Acidic
A solution with a pH value below 7 on the pH scale
Amino Acids
The building blocks of protein. Amino acids exist in 20 naturally occurring forms that impart different characteristics to the various proteins they compose
Anion
A negatively charged ion
Atomic Number
A measurement that reflects the number of protons in an atom of a particular element.
Atom
The smallest particle of an element to retain all the properties of that element
ATP
The form of energy that cells generally use.
Basic
A solution with a pH value above 7 on the pH scale
Carbohydrate
A compound containing primarily carbon, hydrogen, and oxygen in a 1:2:1 ratio
Cation
A positively charged ion
Chemical bond
a link formed between molecules when two or more atoms share, donate, or accept electrons
Compounds
Molecules that are a combination of two or more different elements.
Covalent bond
A chemical bond formed by the sharing of electrons bewtween two atoms
Disaccharide
A sugar containing two monosaccharides, examples sucrose (fructose & glucose)
DNA
The nucleic acid often referred to as the :double helix" DNA carries the master plan for an organism's heredity
Electron
A negatively charged subatomic particle that is distributed around the nucleus in an atom.
Element
A substance comprising only one kind of atom that cannot be degraded into two or more substances w/o losing its chemical characteristics
Ionic bond
A chemical bond in which electrons are transferred and not shared between atoms
Isotope
A version of an element that is virtually identical in all chemical properties to another version except that their atoms have slightly different atomic masses
Lipid
A term used to describe a variety of substance that r not soluble in polar solvents such as water, bt wl dissolve in nonpolar solvents such as benzene & chloroform
Macromolecules
Large, molecular compounds assembled from smaller subunits, most notably biochenical
Mass number (MN)
Measurement that reflects the number of protons and neutrons in an atom of a particular element.
Matter
All tangible materials that occupy space and have mass
Molecule
A distinct chemical substance that results from the combination of two or more atoms
Monosaccharide
A simple sugar such as glucose that is a basic building block for more complex carbohydrates
Neuron
nerve cell, including its processes (axons and dendrites)
Nonpolar
A term used to describe an electrically neutral molecule formed by covalent bonds between atoms that have the same or similar electronegativity
Nucleotide
The basic structural unit of DNA and RNA each nucleotide consists of a phosphate. a sugar, and a nitrogenous base
Organic
referring to chemical that contain covalently b
ound carbon & hydrogen atoms & are involved in metabolic reactions
pH scale
A system for rating acidity and alkalinity
Polar
Term to describe a molecule with an asymmetrical distribution of charges. Such a molecule has a negative pole and a positive pole
Polysaccharide
A carbohydate that can be hydolyzed into a number of monosaccharides. Ex cellulose, starch, glycogen
Protein
Predominant organic molecule in cells, formed by long chains of amino acids.
Proton
An elementary particle that carries a positive charge. It is identical to the nucleus of the hydrogen atom.
RNA
The nucleic acid responsible for carrying out the hereditary program transmitted by an organism's DNA
Solution
A mixture of one or more substances (solutes) that cannot be separated by filtration or ordinary settling.
Describe elements of atoms
a combination of subatomice particles called protons which are pos charged, neutron ,have no charge & electrons which are are neg charged ions