Biological molecules pt. 1 Flashcards
Focuses on the first part of this lesson
What’s so special about water?
It’s a great solvent.
Does water have a high or low specific heat capacity?
It has high specific
heat capacity
What happens when there is a temperature change in water?
Water absorbs or loses a
lot of heat for any
temperature change.
Water has a high or low surface tension
high
Is water less or more dense as a
solid than a liquid.
Water is less dense as a solid than a liquid
What does high surface tension in water allow?
Bugs to walk on water, beading up, long water to be drawn from roots to leaves
Water Is heavier or lighter as Solid than as a Liquid?
Lighter
Why is water lighter as ice than liquid form?
In ice, the max number of hydrogen bonds form, causing the molecules to be more spread apart.
Why is liquid form of water heavier than ice?
In liquid water, hydrogen bonds are constantly breaking and reforming, enabling a more dense spacing than in ice.
What does ice form over water?
This means that ice
forms an insulating
blanket over water
What is pH
measure of
proton (hydrogen ion
or H+) concentration
Low pH has, and high pH has
lots of H+s, few of H+s
6 types of atoms make up 99% of all living
things are…
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, Sulfur
An acid produces ___ while a base absorbs_____
H+, H+
What are organic compounds
Organic Compounds contain carbon and hydrogen
bonded together
E.g. C6H12O6
What is inorganic compound
Inorganic Compounds contain carbon and hydrogen,
but NOT bonded together
E.g. H2O, CO2
Molecular formula vs structural formula
Both use of chemical symbols to represent a molecule, just that in STRUCTURAL FORMULA, there is also a use of bonding arrangement (only difference)
What dictates a function?
Structure
What are the four Major Biological Molecules of Life
Carbohydrate, lipid, protein and nucleic acid.
What does hydrolysis mean
Breaking molecules apart by reaction with water
Two types of reactions are..
Hydrolysis (catabolic) and Condensation (Anabolic)
What is a monomer
Repeating units of polymer and are building blocks
What is a polymer
Repetitive unit of monomer (long chains), proteins & fats
What is protein
Made up of amino acids and is a polymer of an acid
What are macromolecules
Huge assemblies
of atoms. Macromolecules are large, complex molecules that play a crucial role in the structure, function,
