Water Properties
Chemistry Basics
Intro to Biomolecules
Functional Groups
Random
100
Why is frozen water (ice) less dense allowing it to float?
100
These are molecules have the same chemical formula but different structures
What are Isomers
100
The number of bonds that carbon can form.
What is 4
100
What functional group makes up water?
Hydroxyl (-OH)
100
Define pH and describe the pH scale. What is considered an acid, neutral and basic/alkaline.
What is the power of hydrogen or measure of the concentration of H+ ions in a solutions. Scale is 1-14. PH values less than 7 are acid, 7 is neutral and greater than 7 are basic/alkaline.
200
This is the name of the substance dissolved in a solvent.
What is Solute
200
What is the difference between organic and inorganic molecules?
Organic molecules contain carbon and inorganic molecules do not contain carbon
200
Describe the type of reaction that involves breaking a polymer down into monomers?
What is hydrolysis - addition of water to break bonds
200
This functional group is written as -C=O
What is carbonyl group
200
This is the name to describe the cohesive forces between water molecules that allows some insects to walk on water.
What is Surface Tension
300
What is the name given for water being attracted to other water molecules. What is the name for water being attracted to other molecules/substances?
What is cohesion? What is adhesion?
300
What are the 6 essential elements for life? These elements form the major biological molecules, nucleic acids, proteins, carbohydrates, and lipids.
What is carbon, hydrogen, oxygen, nitrogen, phosphorus and sulfur.
300
What elements are found in proteins?
C, H, O, N, S
300
This is the "amino" functional group
What is -NH2
300
A biomolecule's function is dictated by its _________.
What is structure
400
This is the heat required to change the temp of 1 gram of a substance 1 degree C.
What is Specific Heat? High specific heat = less fluctuation in water temperature
400
What type of bond is found between Oxygen and Hydrogen in a water molecule?
covalent
400
What are the monomers for all 4 biomolecules?
Carbohydrates - monosaccharides
Lipids - fatty acid & glycerol
Proteins - amino acids
Nucleic Acid - nucleotide
400
What functional group has -CH3?
What is methyl group
400
This action is due to the pressure of cohesion and adhesion of water which cause the liquid to move up a tube.
What is Capillary Action
500
What are 3 differences between hydrophilic and hydrophobic substances? Describe each, dissolvability in water, polar or nonpolar
What is
Hydrophilic = water loving, can be dissolved in water, polar & ionic
Hydrophobic = water fearing/hating, cannot be dissolved in water, nonpolar
500
_________ bonds result from the attractive force between a hydrogen atom and a very electronegative atom such as N and O. This type of bond exists between water molecules.
What is hydrogen bond
500
What biomolecule is this?
What is a nucleotide - nucleic acid biomolecule
500
Which two functional groups make up a protein?
What is carboxyl group - COOH and amino group - NH2
500
What year did Mrs. Irby graduate high school?
What is 2000