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Review Questions
MCAS Practice Questions
Molecules Gone Wild!
Enzymes
Spice Girls
100
SPONCH
What are the elements found in organic molecules (living things)?
100
1. Which group of organic compounds contains fatty acids? A. carbohydrates B. lipids C. nucleic acids D. proteins
B. Lipids
100
Gives quick energy
What is a carbohydrate?
100
protein
What macromolecule is an enzyme?
100
Emma Lee Bunton
Who is Baby Spice?
200
Positively charged particle found in the nucleus of an atom.
What is a proton?
200
4. A student is preparing to run in a school track competition. For the quickest source of energy, the student should eat a food that contains a high percentage of A. carbohydrates. B. fat. C. proteins. D. sodium.
A. Carbohydrates
200
DNA!
What is nucleic acids?
200
Breaks molecules down or puts them together.
What is the function of an enzyme?
200
Geri Halliwell
Who is Ginger Spice?
300
Draw glucose in ring form (C 6 H 12 O 6 )
ring with 5 carbons and 1 oxygen; OH group off of each carbon with one CH3OH group off one carbon
300
8. Which of the following roles does an enzyme play when the body processes sucrose (table sugar) into glucose and fructose? A. An enzyme decreases the body’s need for sucrose. B. An enzyme increases the amount of sucrose available. C. An enzyme increases the rate at which the sucrose breaks down. D. An enzyme decreases the amount of fructose and glucose product available.
C. An enzyme increases the rate at which the sucrose breaks down.
300
It carries out cellular functions and is the building blocks for things such as hair or fingernails.
What is a protein.
300
substrate
What is the protein called in the beginning of the reaction?
300
David Beckham
Who is Posh Spice married to? (MUST USE POSH TO GET POINTS)
400
Draw an amino acid. H2NCHRCOOH
H l H2-N-C-C=O l \ R OH
400
3. What do disaccharides, such as sucrose, and polysaccharides, such as starch, have in common? A. They are lipids made of fatty acids. B. They are proteins made of amino acids. C. They are nucleic acids made of nucleotides. D. They are carbohydrates made of simple sugars.
D. They are carbohydrates made of simple sugars.
400
It stores massive amounts of energy.
What is a lipid?
400
Active site
What is the place called where the action happens during the reaction with an enzyme?
400
January 23, 1998
What is the date that SPICE WORLD came out?
500
What was the Control, Constant, Independent Variable, and Dependent Variable use in the Enzyme lab we did. (We made jello with pineapple juice)
Constant - Jello Control - Room Temperature Pineapple Independent Variable - Frozen Pineapple AND Boiled Pineapple Dependent Variable - Whether or not the jello solidified
500
Catalase is an enzyme that protects cells from damage by helping convert the toxin hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2). A student is investigating how different pH values and different temperatures affect catalase activity. The table below shows the student’s data. Explain why temperature affects catalase activity.
Catalase is an enzyme, which means it is also a protein. Proteins don't work when it's too cold because it will freeze. They also don't work when it's too hot because they will denature, so they no longer function. The temperature needs to be just right for enzyme activity to be at it's peak.
500
What are the building blocks for all macromolecules?
Carbohydrate - monosaccharide Protein - amino acids Lipids - fatty acids nucleic acids - Phosphate group, sugar group, nitrogenous base
500
Draw and label a graph representing what happens to enzyme function when temperature changes from freezing to boiling.
(The graph should look like a bell curve)
500
Perform as a group, "Wanna Be".
Group with most known lyrics and most creative and appropriate dance moves wins.