Episode 1: Define protein

Biology Brain BitesSnack-sized short sharp study sessionsEpisode 1: Unit 4 Topic 1 Define proteinUnit 4: Heredity and continuity of life Topic 1: Genetics and heredity Describe the structure and function of DNA, genes and chromosomes in prokaryotes and eukaryotes, including -  helical structure, nucleotide composition (nitrogenous base + sugar + phosphate), complementary base pairing, hydrogen bonds -  introns and exons, promoter region -  homologous chromosomes (i.e. sister chromatids, centromeres, telomeres, gene loci, alleles), role of histones -  circular chromosomes (i.e. prokaryotes, mitochondria, chloroplasts) and plasmids. QCAA Biology Senior SyllabusResearch has shown short micro sessions of 1-3.5 minutes are highly effective.Science behind microlearning has demonstrated it is effective. It reduces load on working memory.Promotes spaced repetition.Learners can maintain engagement for short sessions.It reduces learner anxiety and increases confidence.https://www.morecurricular.co.uk/post/the-science-behind-bite-sized-study-sessions-why-shorter-really-is-better Learning Goal:Define protein.Identify examples of protein. What are proteins and what do they do?Protein StructureProteins are complex molecules that are made from amino acids and carry out many jobs and functions for organisms. Proteins are made from sequences of amino acids.An amino acid is a molecule with:A central carbon,A carboxyl group,An amino group, andA side chain which is variable depending on the type of amino acid.Amino acids are joined together by a peptide bond.A number of amino acids joined together is called a polypeptide.The sequence of amino acid is the primary structure of the protein.The protein will eventually form a 3-dimensional large molecule which is specific for its function.Some of the roles of proteins include:Providing structure.Enzymes - carrying out reactions.Hormones.Cell receptors.Antibodies.Some examples of proteins:Digestive enzymes: pepsin; lipase; amylaseThe hormone insulinHaemoglobin: the red pigment in red blood cells that carries oxygenKeratin: makes us nails and hairLinks for recap and review:Roles of Proteins - Ameoba SistersBiomolecules - Ameoba SistersHomework:Make a flash card for proteinHand write the flash card - better for memory retentionOn one side write “protein”On the other side Write a definition of proteinWrite a summary of what you know about proteinsResearch and write some examples of proteinsMusic made using the app Suno