The text discusses various biological molecules and their essential functions within living organisms. It highlights the importance of transport mechanisms that move molecules and nutrients throughout the body and into cells.
Motor
Keep cells moving and changing shape.
They also transport components around inside cells.
Sensory
Helps us learn about our environment.
They help us detect light, sound, touch, smell, taste, pain and heat.
Transport
Move molecules and nutrients
around the body and in and out of cells
Regulatory
Bind DNA to turn genes
on and off
Signalling
Allow cells to communicate each other.
Signals, receptors, and relay proteins work
together to get information from outside to the inside of the cell
Structural
Strengthen cells, tissues, organs
Enzymes
Build and Break down Molecules
They are critical for growth, digestion,
and many other processes.
Types of proteins
Intermolecular Forces
Different IMF's between
side chains of amino acids
Hydrogen Bonding
between the peptide bonds in the
backbone
Quaternary Structure
The combination of more
than one protein with
tertiary structures
Tertiary Structure
The overall 3-D shape of the protein
Secondary Structure
Small folded shapes within a
protein
Primary Structure
The linear structure of
amino acids.
Structures
Peptide Bond
Polypeptide
R-Group
Represents 1 of the 20
different side chains
Same 2 Functional Groups
Carboxyl
Amine
Chemical Structure
Hydrophobic
Amino Acids with non-polar functional groups.
"fears" water
Intermolecular Forces of Attractions
Hydrophilic
Amino acids with Polar or Ionic Functional Groups.
Water "loving"
Properties
Essential Amino Acids
We need to get these from
our diet
Amino Acids
There are 20 amino acids.
Humans can make 11 out of 20
in our cells