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Warm-Up (11/9) Answer the following questions, and explain in a complete sentence why each answer is correct. Which of the following is the only organelle that is NOT bound by a membrane? A. Smooth ER B. Nucleus C. Ribosome D. Lysosome How is a prokaryotic different from a eukaryotic cell? Only eukaryotic cells have DNA. Prokaryotic cells are plants, and eukaryotic cells are animals. Prokaryotic cells do not have a plasma membrane. Prokaryotic cells do not have membrane-bound organelles, while eukaryotic cells do.    

I think the two pounds leaves my body by… Think-Pair-Share Consider the following question and share your answer with your partner. Feel free to use the sentence stem below. I will call on three people to give me their partners’ answers. You eat about 6 pounds of food every day. Your poop and pee total to about 4 pounds. Do you actually gain 2 pounds every day? What happens to those 2 pounds? I think the two pounds leaves my body by…

Chemical Reactions Reactants: left of the arrow; what gets transformed by the reaction Products: right of the arrow; what the reaction produces

Chemical Reactions Big number: the “coefficient” How many molecules there are

Chemical Reactions BIG number: the “coefficient” How many molecules there are Little number: the “subscript” How many atoms there are

Chemical Reactions What type of molecule is responsible for lowering the activation energy of a reaction? Which biomolecule is it?

ATP  ADP + energy Chemical Reactions ATP releases energy when it becomes ADP Base

ADP + energy  ATP Chemical Reactions Cells store energy by making ATP Base

Independent Practice Mg + 2H2O  Mg(OH)2 + H2 +heat ADP + energy  ATP Label the reactants and products of each reaction, and state whether energy is being used or produced. Mg + 2H2O  Mg(OH)2 + H2 +heat ADP + energy  ATP 2Fe + O2  2FeO

Closure Answer the following question in a complete sentence: Name Date Period What do you see about the reactants and products of Photosynthesis and Cellular Respiration? Photosynthesis: light energy + CO2 + H2O  C6H12O6 + O2 Cellular Respiration: C6H12O6 + O2  CO2 + H2O + chemical energy Scale from 1-10