Subject: BiologyTopic: UNIT 2 CE CHEM of LIFE Teacher: ParksDate: --/--/-- NC Standard Course of Study Objective: 2.01 Biology NC Standard Course of Study What is it you want students to know and be able to do at the end of your lesson? Know the molecules of life. Distinguish organic molecule from other molecules. Know the characteristics of organic molecules. How will you know if they accomplish it? (Formative Assessment, Summative Assessment, Student Product?) Students will answer questions in teams. The questions will come from the powerpoint “CE Review of CHEM LIFE” This will be a formative assessment in which the students’ product will be to answer the questions to gain points for their teams. Teachers will give feedback on each right or wrong question. ActivityTimeDescription of Activities 1. Opening 5 minutes 5 minut es Use this opportunity to wait for all students to come into class. Students will be assembled into 3 teams as they walk into the door. The teacher should select the teams. 2. Work Period:  Teacher Input/ Guided Practice  Solo Time/ Pair/Group 55min. (Formative assessment) The activity is on a powerpoint so all students can easily read the directions and answer questions concerning the chemistry of life. Students will be divided into 3 teams (Team A,B, C). Team A will go first. If they answer correctly they get full points (3). If they answer incorrectly, Team B can answer for 1 point, and attempt to answer the next available question. 3. Closing: Teach facilitated after each question 55 min The teacher will explain each answer after each question.

What are Enzymes?

Enzymes are proteins which act as biological catalysts. ANSWER:

WHAT IS THE MONOMER CALLED FOR THIS MOLECULE? Hint: That is DNA.

ANSWER: NUCLEIC ACID

WHAT WOULD HAPPEN IF THERE WERE NO ENZYMES IN THE BODY?

Without enzymes, several reactions in cells would never occur or happen to slowly to be useful. ANSWER:

2H 2 + O 2  2H 2 O THE ITEMS ON THE LEFT SIDE OF THE ARROW ARE CALLED THE REACTANTS WHILE THE ITEMS ON THE RIGHT SIDE OF THE ARROW ARE CALLED THE ____________

ANSWER: THE ITEMS ON THE RIGHT SIDE ARE CALLED THE PRODUCTS

WHAT IS THE MONOMER FOR A CARBOHYDRATE CALLED?

ANSWER: MONOSACCHARIDE

WHAT IS MEANT BY THE TERM SACCHARIDE?

ANSWER: “SUGAR”

What is a catalyst?

It is a substance that speeds up the rate of a chemical reaction. ANSWER:

What is a substrate?

Enzymes bind to molecules called substrates. These substrates are the reactants that are catalyzed by the enzyme. ANSWER:

The site on the enzyme where the substrates bind is called the_________

The site on the enzyme where the substrates bind is called the active site. ANSWER:

How are enzymes affected by the reactions?

ANSWER: Enzymes are NOT changed by the reactions they catalyze, therefore they are reusable!

In what ways can enzymes possibly be affected? Hint: Think about the lab on enzymes. Did the cooked items you tested react differently than the fresh items when you added peroxide? Did the acidic and basic items react?

Enzymes can be affected by temperature and pH. Temperatures outside the correct range can cause enzymes to break down or change shape. This break down is called denaturation. Therefore, enzymes in our body work best at 37°C (98.6°F) and at a pH between 6.5 to 7.5. Ex: Catalase is an enzyme that breaks down hydrogen peroxide. H2O2 → H2O + O2 (gas) A raw potato in H2O2 gives off O2. The boiled potato give no bubbles because the enzyme has changed due to heat. ANSWER:

The study of all compounds that contain bonds between many carbon atoms is called what?

ANSWER: ORGANIC CHEMISTRY

Four groups of organic compounds found in living things are:

ANSWER: carbohydrates, lipids, nucleic acids, and proteins

DESCRIBE THE PROCESS OF POLYMERIZATION OR TELL WHAT IT MEANS?

MACROMOLECULES JOIN TOGETHER IN A PROCESS CALLED POLYMERIZATION. SMALLER UNITS CALLED MONOMERS JOIN TOGETHER TO MAKE POLYMERS. ANSWER:

DESCRIBE WHAT A LIPID LOOKS LIKE USING CORRECT TERMINOLOGY

LIPIDS or “fatty acids” like oils Glycerol connected to 3 fatty chains ANSWER:

WHICH ELEMENTS MAKE UP PROTEINS?

PROTEINS- contains Nitrogen as well as the hydrogens, carbons, and oxygens. ANSWER:

THE FOLLOWING ELEMENTS MAKE UP WHAT ORGANIC MOLECULE? CARBON, OXYGEN, HYDROGEN, NITROGEN, PHOSPHORUS

ANSWER: NUCLEIC ACIDS IN YOUR DNA!!!!!!!!!!!!!

Match the molecule with its proper function. Carbohydrate ____________ a.Stored energy Lipid ______________ b. Building blocks Protein _____________ c. quick energy Nucleic Acids __________ d. Genes/ code for proteins

ANSWER: Carbohydrate___C_________ a.Stored energy Lipid_____A_________ b. Building blocks Protein______B_______ c. quick energy Nucleic Acids____D______ d. Genes/ code for proteins

What is this?

ANSWER: LIPID

What is this?

ANSWER: GLUCOSE or MONOSACCHARIDE

Proteins are synthesized from less complex organic compounds known as A. Starches B. Amino acids C. Enzymes D. Carbons

ANSWER: AMINO ACIDS

THE “LOCK AND KEY” MODEL OF ENZYME ACTION ILLUSTRATES THAT A PARTICULAR ENZYME MOLECULE DOES WHAT?

ANSWER: Each protein has a specific shape, therefore enzymes bind to substrates based on shape.

What is the monomer for a Nucleic Acid called?

Answer: Nucleotide