cell structure unit guide
Terms in this set (27)
what are the four major elements found in cells
Bess bacteria , evolved fist, simple, small
what is the acronym we use to memorize these elements
list the four main molecules and there funtion
carbohydrates, lipids, protein, nucleic acids.
list the functions of each
carbohydrates- fats medium energy, lipids- short term long term energy- long term starches, short term sugars,
protein- build and repair mussels. nucleic acids carries generic information
describe universal solvent
water because it devolves more chemicals and because water is poller.
water molecules stick together or to its self
ability to water to cling or stick to other things
absorbs lots of heat with out raising the tempter.
compare the density of liquid water with the density of ice.
ice has a lower density then water so ice just floats ontop.
witch of the four main macro-molecules is an enzyme
how does an enzyme speed up a chemical reaction
by using protein
what does it mean to denture a molecule
it stops working
name two ways an enzyme can be dentured
pH and tempiture
what happens when an enzyme is dentured
what are the three major statements that make up the cell theory
1. all living things are made of cells
2. all living cells come from pre - existing cells
3. the cell is the basic unity of life
what did Anton van observe
the fist living cell
describe facilitated diffusion and weather it is passive or active
facilitated diffusion is a type of passive transport. that allowed substances to cross the membrane with assistance
define osmosis and weather it is passive or active
the movement of water across the membrane from and area of high to low consentration
define endoe csytoces and weather it is passive or active
this ocures when water and food are surrounded by the cell.and brought into the cell.
acures when waist is packaged and eliminated by the cell.
what is the function of a protein pump is it passive or active
uses energy pumps molecule against concentration gradient and its active
define hyper tonic
the solution with the higher solute consent ration
both solution and solute are the same
when the solution is lower than the solute
how do proteins aid in the movement of molecules through a membrane
protein help to carry the movement across the cell membrain
what is the difference between a prokareotic cell and Eukaryotac cell
the eu cell has a membrain the other doesn't
witch type of cell evolved fist
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