Cell Chemistry
LPA 2013-2014
Week 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
CH
4
+ 2 O
2
CO
2
+ 2 H
2
O

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 reactants
2. The ____________ of the environment
3. 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/curricul um/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
Light
6CO
2
+ 6H
2
O C
6
H
12
O
6
+ 6O
2
Carbon Dioxide Water Sugar Oxygen

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
C
6
H
12
O
6
+ 6O
2
Light
6CO
2
+ 6H
2
O

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/animati ons/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.