31
Jeopardy! Macromolecules

Jeopardy! Macromolecules

  • Upload
    evette

  • View
    61

  • Download
    0

Embed Size (px)

DESCRIPTION

Jeopardy! Macromolecules. Ground Rules:. Every team answers every question. I do this so that the maximum number of students are participating. Its not a race, just find the right answer, and they will all be scored at once. You only gain points (this keeps the math a lot easier). - PowerPoint PPT Presentation

Citation preview

Page 1: Jeopardy! Macromolecules

Jeopardy!Macromolecules

Page 2: Jeopardy! Macromolecules

Ground Rules:• Every team answers every question. I do this

so that the maximum number of students are participating.

• Its not a race, just find the right answer, and they will all be scored at once.

• You only gain points (this keeps the math a lot easier)

Page 3: Jeopardy! Macromolecules

• Keep the focus on learning biology!• Don’t argue about the points.• Don’t waste time arguing

Ground Rules:

Page 4: Jeopardy! Macromolecules

Protein Lipids CarbohydratesWaterand

ElementsIdentification and Structure

100 100 100 100 100200 200 200 200 200300 300 300 300 300400 400 400 400 400500 500 500 500 500

End

Page 5: Jeopardy! Macromolecules

Protein 100

a. How many different amino acids are coded for by human DNA?b. How many amino acids exist?

a) 20b) An infinite number of

amino acids are possible because potentially any chemcial structure can be located at the R-group.

Page 6: Jeopardy! Macromolecules

Protein 200

Which of these is an amino acid?

D

Page 7: Jeopardy! Macromolecules

Protein 300

a. What kind of molecule is this? b. Label its parts.

a) amino acid (in this case asparagine)

R group (in this case CH2CONH2)

Carboxyl(COOH)

Amine(NH2)

Alpha carbon

Page 8: Jeopardy! Macromolecules

Protein 400

a. What kind of chemical reaction is shown below?b. Write this chemical reaction using words.c. What kind of bond is formed in the product?

a) condensation synthesisb) amino acid + amino acid → dipeptide + waterc) peptide bond

Page 9: Jeopardy! Macromolecules

Protein 500

a. What kind of molecule is shown below?b. Name the monomer of this molecule, and how many

are present.c. If this molecule underwent hydrolysis, would water be

consumed or released? How many water molecules would do this?

a) protein, polypeptide or oligopeptideb) 7 amino acidsc) 6 H2O molecules would be released

Page 10: Jeopardy! Macromolecules

Lipids 100

a. triglyceride

a. What is the name of this molecule?b. Label its parts

Fatty acid

Glycerol

Carboxyl groups

Page 11: Jeopardy! Macromolecules

Lipids 200

a. Name this molecule.b. Describe it’s structure in as much detail as you can.

a. Fatty acid. b. It is a lipid, it has a carboxyl group

(COOH), and it is unsaturated (it has a double bond), which makes it more likely to be a liquid

Page 12: Jeopardy! Macromolecules

Lipids 300

Saturated fats have no double bonds in them. They are usually solids at room temperature (because they have no bends in the C-chain)

Unsaturated fats have one or more double bonds. They are usually liquids at room temperature (because they have no bends in the C-chain)

What is the difference between a saturated and an unsaturated fat?

Page 13: Jeopardy! Macromolecules

Lipids 400

Lipids are typically used for long-term storage of energy.Reasons:Lipids efficiently store energy (compact)Lipids are the molecule with the highest amount of energy per gramIt takes more time for the energy to be released from lipidsIt requires more oxygen for lipids to be broken down.

Are lipids typically used by organisms for long-term or short-term storage of energy. Explain your reasoning.

Page 14: Jeopardy! Macromolecules

Lipids 500

Thermal insulationSolvent for nonpolar substancesCell membranes (phospholipid bilayer)Protection as cousioningFloating (lipids are less dense than H2O)Good electrical insulator for nervous systemHormones are lipids

State some uses of lipids, other than energy storage.(3 points)

Page 15: Jeopardy! Macromolecules

Carbohydrates 100

Describe the molecule lactose. (3 points)It’s a disaccharideIt’s made out of 2 glucose moleculesIt’s made by some animals and found in milk.Lacking the enzyme (called lactase) to break the glycosidic bond between the glucose molecules is called lactose intolerance.

Page 16: Jeopardy! Macromolecules

Carbohydrates 200

What’s the difference between starch and cellulose?

Starch: Humans can digest it. Found in plant parts like rice, potatoes, grains. It’s called “carbs” on nutrition facts.Cellulose: humans can’t digest it. Found in plant parts like wood and leaves (cell walls of plant cells). It’s called “fiber” on nutrition facts.Both are plant-made carbohydrates made out of glucose molecules

Page 17: Jeopardy! Macromolecules

Carbohydrates 300

What is the name of this molecule? Where do we find it and what does it do?

This is the carbohydrate called glycogen. Glycogen is stored “blood sugar”. It is a carbohydrate that your body uses to temporarily “store” glucose. Insulin regulates the amount of glucose that is stored.

Page 18: Jeopardy! Macromolecules

Carbohydrates 400

a) The reaction will be hydrolysis, a decomposition reaction.

b) In this reaction, H2O is a reactant. (water is consumed because it is split to “fill in” the atoms on the individual glucose molecules.)

You consume a huge meal of spaghetti and breadsticks. a. What is the name of the

chemical reaction that will break down this food?

b. In this chemical reaction, will water be a reactant or a product?

Page 19: Jeopardy! Macromolecules

Carbohydrates 500

A chemical reaction occurs, synthesizing 5 glucose molecules. a. What is the name of this chemical reaction?b. What is the name of the product?c. What is the other product and how many molecules of

it are made?

(a) Dehydration synthesis (b) starch or cellulose (c) 4 H2O molecules are made

H H OH

H2O

OH H HOH OH

H2O H2O H2O

Page 20: Jeopardy! Macromolecules

Water 100

State one biological function of iron.

In some animals, iron is found in the protein hemoglobin, and it allows oxygen to bind to this protein. Red blood cells contain this protein.In some plants, iron is a component of making chlorophyll for photosynthesis.

Page 21: Jeopardy! Macromolecules

Water 200

Draw four water molecules and label which side is slightly positive, which side is slightly negative, and show where hydrogen bonds form.

Hydrogen bonds

Page 22: Jeopardy! Macromolecules

Water 300

State one purpose of nitrogen in living things.

Nitrogen is found in amino acids and therfore proteinsNitrogen is found in chlorophyll

Page 23: Jeopardy! Macromolecules

Water 400

Compare and contrast adhesion and cohesion in water.In both, hydrogen bonds cause water to be attracted to another substance.

Cohesion is the characteristic of water to be attracted to itself, and stick together. Surface tension is a result of cohesion.

Adhesion is the characteristic of water to stick to other substances. Capillary action is an example of adhesion.

Page 24: Jeopardy! Macromolecules

Water 500

a. Does water have a high or low specific heat?b. Describe one biological consequence of this

characteristic of water.

a. Water has a high specific heat.b. As a consequence of this:

Living things can more easily maintain a relatively constant temperature.

Aquatic habitats maintain a relatively constant temperature.

Water is an excellent coolant, because it takes a lot of heat away from an organism when it evaporates.

Page 25: Jeopardy! Macromolecules

Identification and Structure 100

a. Which of these molecules are organic?b. Which of these molecules are inorganic?

a. Organic = 1, 3, 5, 6b. Inorganic = 2, 4

H2O

Ribose

Protein

1. 2.3.

4. 5.6.

Page 26: Jeopardy! Macromolecules

Identification and Structure 200

Name each of these molecules.

A = glucoseB = amino acidC = glycerolD = ribose

Page 27: Jeopardy! Macromolecules

Identification and Structure 300

a. What is the name of this molecule?b. State one function of this molecule.

a) Sucroseb) It is found in plants as a short-term,

stable energy source. “Table sugar” is sucrose.

Page 28: Jeopardy! Macromolecules

Identification and Structure 400

Which kind of substance would likely dissolve best in water? Explain your reasoning:a) a monosaccharideb) a proteinc) a lipidA monosaccharide would dissolve best because it is smallest and has lots of polar OH groups on it.

A protein may or may not be soluable, depending on the amino acid make up of the proteinA lipid is, by definition, nonpolar.

Page 29: Jeopardy! Macromolecules

Identification and Structure 500

Complete the table.Type of molecule Example used in plants Example used in

animals

Monosaccharide

Disaccharide

Polysaccharide

Type of molecule Example used in plants Example used in animals

Monosaccharide fructose glucose

Disaccharide sucrose lactose

Polysaccharide cellulose, starch glycogen

Page 30: Jeopardy! Macromolecules
Page 31: Jeopardy! Macromolecules

Thanks For Playing!