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.