lesson 1 – intro – structure and function of cell components
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Lesson 1 – Intro – Structure and Function of Cell Components. Molecular Cell Biology. Molecular Cell Biology is the study of the chemical reactions that occur within biological systems or…. Biochemistry. The Main Groups of Molecules. The main groups of molecules found in cells are:. - PowerPoint PPT PresentationTRANSCRIPT
Lesson 1 – Intro – Structure and Function of Cell
Components
Molecular Cell Biology
Molecular Cell Biology is the study of the chemical reactions that occur within biological systems or…..
Biochemistry
The Main Groups of MoleculesThe main groups of molecules found in cells are:
CarbohydratesLipidsProteins
Nucleic Acids
Cellular Systems
The 2 important cellular systems we will study are:
Cell MembranesCytoskeleton
Chemical CompositionLiving things are mostly made up of oxygen and beyond that there are actually very few different elements involved on a large scale.
OxygenCarbonHydrogenNitrogenPhosphorusSulphur
CHNOPS
Carbon-based Life
Carbon is the basis for life on earth. It has the ability to make 4 covalent bonds with other atoms.
Functional Groups
Carbon based molecules (organic molecules) often have active functional groups that help them to perform a specific chemical role.
How many do you know?On your desk draw out the following groups:Methyl, Hydroxyl, Carbonyl, Sulphydryl (thiol), carboxyl, Amino, Phosphate
Methyl
Hydroxyl
Carbonyl
Sulphyldryl
Carboxyl
Carboxyl - ionised
--
Amino
Amino - Ionised
Phosphate
Phosphate - Ionised
Polymers
Polymers are macromolecules made up of smaller repeating subunits called monomers.
Dehydration SynthesisPolymers are produced through a type of condensation reaction called dehydration synthesis.
HydrolysisHydrolysis is the opposite of a condensation reaction. The large polymer gets broken up into monomers releasing water.
Making and Breaking Bonds
Making bonds requires energy.
Breaking bonds releases energy.
Your Task1. Refresh your chemistry – make
notes on and complete all activities in the Scholar 4.1 section. There will be a short quiz next week.
2. Learn the different functional groups.
3. Make notes on 2.1 Carbohydrates.