Intro, what is life Flashcards
(25 cards)
What is the general purpose of biochemistry?
To explore the fundamental molecules and processes within and related to living organisms
Living cells are essentially chemical ____.
Engines
Living cells exist in a dynamic steady state: they are never at ____.
Equilibrium
“Biochemistry is ____ and life is ____”
Life; biochemistry
All biomolecules are a combination of what six essential atoms?
Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur
What is a benefit of space fill molecular models?
Makes it easier to visualise the molecules in 3D (remember, physical form is related to function)
What is a Dalton?
A unit of mass of a single proton, 1.66x10^-24g
What is the numerical value of a Dalton?
1.66x10^-24
The unit of mass of a single proton is called a ____
Dalton (written as Da)
One mol is ____ molecules
6.022x10^23
How do you calculate the mass of a compound in Daltons?
Add up the atomic mass of each atom in the compound
Name the four essential types of biomolecules
Lipids/fatty acids, carbohydrates, amino acids, nucleotides
Amino acids are the subunits of ____
Proteins
Nucleotides are the subunits of ____ and ____
DNA and RNA
What is the term for a carbohydrate monomer?
Monosaccharide
What is the term for a carbohydrate polymer?
Polysaccharide
What is the term for a protein monomer?
Amino acid
What is the term for a protein polymer?
Polypeptide
What is the term for a nucleotide polymer?
Nucleic acid
Lipids (fatty acids and glyerol) are not true ____
Polymers
Almost all organic compounds contain ____ covalently bonded to ____
Carbon; hydrogen
Almost all organic compounds contain carbon ____ bonded to hydrogen
Covalently
Name two organic compounds that do not have a carbon covalently bonded to a hydrogen
Carbon tetrachloride (CCl4) and urea (CO(NH2)2)
Name two inorganic compounds commonly found in the body
Calcium, iron
