Opening Activity: May 21, 2018 Turn in worm explanation if you have not do so already. Due TODAY!! Tomorrow will be late. Pick up “Gene Regulation Unit Checklist” at front table. Read through what you need to complete to prepare for our unit test on Friday. Upcoming Dates- Add to planner or phone!! Wednesday 5/23 – Reflection & Vocab DUE Thursday 5/24 – Gene Regulation TEST Friday 5/25 – Notebook Due!! I can… Explain how marine organisms use proteins. Homework: Reflection and Vocab – 5/23 Gene Regulation Test 5/24

Today’s Goals Work Time – 10 minutes Reflection and Vocabulary Creatures of Light – Movie 30-40 minutes Find your notes from a few weeks ago – sub will give you a notes sheet if you need one! Complete notes while watching movie.

Creatures of Light - Movie Notes Create the following chart in journal to complete: Many Uses of Bioluminescence Name of Organism (general) What part of the organism lights up Explain how they use the trait Communication Food Location Prey Attraction Camouflage Self-Defense Mating

The Chemistry of Bioluminescence Creatures of Light Find your notes from a few weeks ago – sub will give you a notes sheet if you need one. Complete notes while watching movie. The Chemistry of Bioluminescence

Bioluminescence – Chemical Equation Review the reaction – Identify the protein, substrate and products

What is the external stimulus that starts the tanning process? Opening Activity: May 22, 2018 What scientific processes occur to maintain homeostasis in the C. Elegans over time? What is the external stimulus that starts the tanning process? I can… Explain how and why people tan. Homework: Reflection and Vocab – 5/23 Gene Regulation Test 5/24

Why do you think skin exposed to sunlight darkens? Review your idea journal. Create a whiteboard of your current ideas about why we tan.

Why do you think skin exposed to sunlight darkens? Review your idea journal. Create a whiteboard of your current ideas about why we tan. Watch video – add to ideas. Share how unit ideas are involved. Go back to initial ideas.

Apply it to tanning https://www.youtube.com/watch?v=hFw8mMzH5YA When DNA is damaged by UV, a gene called p53 is activated (mechanism unknown) The p53 protein, in turn, activates a gene called POMC POMC causes another molecule to break apart and create MSH (melanin stimulating hormone) This hormone causes the cell to turn tyrosine into melanin In a nutshell – UV damage causes a gene to be activated, which in turn activates melanin production