characteristics of life
All living organisms are made of ...
cells
To find the number of neutrons in an atom you need to
subtract the atomic number from the mass number
what is 7 on the ph scale
nuetral
what are the four 4 macromolecules
Carbohydrates
Lipids
Proteins
Nucleic acids
consist of only a single sugar molecule and are commonly called simple sugars
monosaccharides
What do living organisms maintain in order to have a stable internal environment
how many electrons are in the second level
8
the ph scale ranges from _ to _
0-14
is lactose a sugar?
yes it is a disaccharide, two sugar molecules combined
many sugar molecules bonded together (ex. starch, glycogen, cellulose)
polysaccharides
What is natural selection
Organisms that have the beneficial adaptations do better!
the mass number is the number of _+_
protons + neutrons
what contains a higher concentration of H+ than OH–
acids
what is Dehydration synthesis
Water is removed and a peptide bond is formed. A water molecule is removed to join amino acids.
plants create sugar through photosynthesis and then store it as starch
starch
Living organisms reproduce and pass on their genetic material in the form of...
DNA
elements that lose an electron while bonding have a _ charge
positive
what contains a higher concentration of OH– than H+
bases
What type of carbohydrate is a potato?
It is a starch, It is a complex carbohydrate.
animals can store carbohydrate in the form of glycogen for later use
glycogen
List the 7 common characteristics of all living organisms
cells
metabolism
homeostasis
reproduction
growth/development
respond to the environment
evolution
what makes an atom stable
having a full outer shell
does adding water to a base make a acid?
no, it brings the ph towards 7 but it stays a base
what is hydrolysis
breaks down the 4 organic macromolecules, does the opposite of dehydration synthesis
What is the chemical formula for carbohydrate monomers
C 6 H 12 O 6