Cell Chemistry LPA 2013-2014 Week 2 Standard 2.2.
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Transcript of Cell Chemistry LPA 2013-2014 Week 2 Standard 2.2.
Cell Chemistry
LPA 2013-2014Week 2
Standard 2.2
Monday Objective
• I will explain the role of enzymes in cell chemistry.
Bell work
• Complete questions 1-5 on page 104.
Reading Questions
• What questions do you have as a result of your reading?
Vocabulary Review
• Make sure you remember the definitions for the following terms from Middle School:– Chemical Reaction– Reactant– Products– Chemical Equation
Vocabulary
• Create vocabulary flashcards for the following terms:– Activation energy– Catalyst– Enzyme
Chemical Equations
CH4 + 2 O2 CO2 + 2 H2O
Activation Energy
• The amount of _________ needed to start a _____________ is the activation energy.
• The amount of activation energy required depends on the __________ of the reaction and the __________ under which the reaction takes place.
Rates of Chemical Reactions
Factors that help ______ up chemical reactions:1. The ____________ of the reactants2. The ____________ of the environment3. The ____________ of the environment
Catalysts
• A __________ is a chemical that _________ up a chemical reaction.
• Protein catalysts are called ___________.
Enzymes
• Enzymes make a reaction happen faster with less __________.
• Enzymes are NOT __________ in the reactions they control.
• Enzymes can catalyze up to several __________ reactions per __________.
Enzymes
• Enzymes work by lowering the __________ energy.
• About ______ chemical reactions are catalyzed by enzymes in animals.
• Enzymes allow:– Movement– Transportation of materials around the body– Moves substances in and out of cells.– Digestion of food
Cell Chemistry Website
• http://departments.jordandistrict.org/curriculum/science/secondary/archive/biology/b0201/inst6265CellChemistryWebsite/home.html
Monday Objective
• I will explain the role of enzymes in cell chemistry.
Homework
• Read pages 105-113.• Answer questions 1-11 on page 111.
Tuesday Objective
• I will illustrate the flow of energy through photosynthesis.
Bell work
• Complete questions 1-4 on page 113.
Quiz
• C =NO communication except with the teacher.• H =Raise your hand and wait to speak.• A =Take the test. Answer every question.• M =Do not get out of your seat or into your bags.• P =Finish the test. When you finish, begin reading
pages 114 - 119 in your notebook.
Reading Questions
• What questions do you have as a result of your reading?
Vocabulary Review
• Make sure you remember the definitions for the following terms from Middle School:– Energy– Law of Conservation of Energy– Photosynthesis
Vocabulary
• Create vocabulary flashcards for the following terms:– ATP
Energy
• All living organisms need energy to ________ and _____________.
• Organisms can only __________ energy from one form to another.
How Organisms Change Energy
• Plants obtain ________ energy and change it to __________ energy stored in food molecules.
• When organisms eat and digest the food, they break the __________ bonds and ________ the __________ energy.
How Organisms Change Energy
• About _____ % of the energy obtained from food is converted to ________ energy and lost to the environment.
Overview of ATP
• ATP = adenosine triphosphate • ATP is the _________ source for cells.• ATP is produced through chemical reactions
such as _____________ and ____________ _______________.
Overview of ATP
• ATP is used by _________ and structural _____________.
• ATP is continuously _________ in organisms.
Photosynthesis
• The process of photosynthesis is _____ to sustaining life on Earth.
• Photosynthesis is the process that converts the __________ of the ____, into carbohydrates, a type of _________ energy.
Photosynthesis
• Organisms that can photosynthesize:– Plants– Algae– Cyanobacteria (blue-green algae)
• In plants, photosynthesis occurs in the _________ of the ___________ in the cells of the leaves.
Chloroplast
Chemical Equation for Photosynthesis
6CO2 + 6H2O C6H12O6 + 6O2
Carbon Dioxide Water Sugar Oxygen
Light
Light Reactions & the Calvin Cycle
• The chemical equation for photosynthesis shows the results of many ___________ ___________.
• The __________ _______________ reactions only occur during daylight hours.
• The __________ __________ is a group of light-independent reactions.
Process of Photosynthesis
Photosynthesis
• Photosynthesis is crucial to most ___________ since animals obtain energy by eating other ________, ________ and seeds that contain the organic products of photosynthesis.
• It is the process of photosynthesis that supplies almost all the _________ to an ecosystem.
Tuesday Objective
• I will illustrate the flow of energy through photosynthesis.
Homework
• Read pages 114-119
Wednesday Objective
• I will describe the flow of energy and matter in cellular function.
Bell work
• Use the next 5 minutes to study for your QUIZ!
Quiz
• C =NO communication except with the teacher.• H =Raise your hand and wait to speak.• A =Take the test. Answer every question.• M =Do not get out of your seat or into your bags.• P =Finish the test. When you finish, turn your
paper over and describe the process of photosynthesis.
Autotroph or Heterotroph
• Read the directions on the handout.• Complete the handout. – (You may work with the persons sitting next to
you.)
Wednesday Objective
• I will describe the flow of energy and matter in cellular function.
Homework
• Complete questions 1-7 on page 119.
Thursday Objective
• I will detail the discovery of photosynthesis.
Bell Work
• Write a paragraph detailing photosynthesis. (how, what, when, where, etc.)
Using History
• Read the Introduction and Procedure.
Thursday Objective
• I will detail the discovery of photosynthesis.
Homework
• Finish the worksheet.
Friday Objective
• I will illustrate the flow of energy through cellular respiration.
Bell work
• Complete questions 8-11 on page 119.
Reading Questions
• What questions do you have as a result of your reading?
Vocabulary Review
• Make sure you remember the definitions for the following terms from Middle School:– Energy– ATP– Cellular Respiration
Vocabulary
• Create vocabulary flashcards for the following terms:– Glycolysis– Kreb’s Cycle– Fermentation– Aerobic respiration– Anaerobic respiration
Notes
• How does the food you eat provide energy?
• _________________ ________________ releases the energy stored in the chemical bonds of _____________.
Chemical Equation for Cellular Respiration
6CO2 + 6H2OC6H12O6 + 6O2
Light
Rate of Cellular Respiration
• Glucose is broken down ___________ so that cells convert as much _________ as possible into the usable form of energy, __________.
• Some energy is lost as _______ energy.
• ______ molecule of glucose can be converted to a net total of ________ or _______ molecules of ATP.
Animations
• Cellular Respiration– http://
www.sumanasinc.com/webcontent/animations/content/cellularrespiration.html
• Fermentation– http://
people.cst.cmich.edu/schul1te/animations/fermentation.swf
Fermentation
• Fermentation occurs when there is no ___________ available. This is called an ______________ environment.
• The two _________ molecules (3 carbon molecules) are transformed into __________ or ________ _________.
Homework
• Review your vocabulary and notes.
Friday Objective
• I will illustrate the flow of energy through cellular respiration.