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WorksheetspH, Macromolecules and Reactions
Total questions: 48
Worksheet time: 55mins
Name
Class
Date
1.
Pure water should have a pH of 7. Does this mean it is an acid, base, or neutral?
a)
Acid
b)
Base
c)
Neutral
2.
Bleach has a pH of around 12. Does this mean that it is an acid, base or neutral?
a)
Acid
b)
Base
c)
Neutral
3.
Lemon juice has a pH of around 2. Does this make it an acid, base, or neutral?
a)
Acid
b)
Base
c)
Neutral
4.
If lemon juice has a pH of around 2 and apple juice has a pH of around 3.5, which is more acidic?
a)
Apple Juice
b)
Lemon Juice
5.
If dish soap has a pH of around 9.5 and windex has a pH of around 10, which is more basic?
a)
Dish Soap
b)
Windex
6.
The monomer of Carbohydrates is what?
a)
Fatty Acid
b)
Sugar
c)
Nucleotide
d)
Amino Acid
7.
The monomer of Lipids is what?
a)
Sugar
b)
Fatty Acid
c)
Nucleotide
d)
Amino Acid
8.
The monomer of Nucleic Acids is what?
a)
Fatty Acid
b)
Sugar
c)
Nucleotide
d)
Amino Acid
9.
The monomer of proteins is what?
a)
Sugar
b)
Fatty Acid
c)
Nucleotide
d)
Amino Acid
10.
Carbohydrates are made of what atoms?
a)
Carbon, Hydrogen and Oxygen
b)
Mostly Carbon and Hydrogen
c)
Carbon, Hydrogen, Oxygen, Nitrogen and Sulfur
d)
Carbon, Nitrogen, Oxygen, Phosphorus and Hydrogen
11.
Lipids are made of what atoms?
a)
Carbon, Hydrogen and Oxygen
b)
Mostly Carbon and Hydrogen
c)
Carbon, Hydrogen, Oxygen, Nitrogen and Sulfur
d)
Carbon, Nitrogen, Oxygen, Phosphorus and Hydrogen
12.
Proteins are made of what atoms?
a)
Carbon, Hydrogen and Oxygen
b)
Mostly Carbon and Hydrogen
c)
Carbon, Hydrogen, Oxygen, Nitrogen and Sulfur
d)
Carbon, Nitrogen, Oxygen, Phosphorus and Hydrogen
13.
Nucleic Acids are made of what atoms?
a)
Carbon, Hydrogen and Oxygen
b)
Mostly Carbon and Hydrogen
c)
Carbon, Hydrogen, Oxygen, Nitrogen and Sulfur
d)
Carbon, Nitrogen, Oxygen, Phosphorus and Hydrogen
14.
Which type of organism stores carbohydrates as starch?
a)
Plants
b)
Animals
c)
Aliens
15.
Which type of organisms stores carbohydrates as glycogen?
a)
Plants
b)
Animals
c)
Aliens
16.
What is one function of Carbohydrates?
a)
Source of energy
b)
Long term energy storage
c)
Store genetic information
d)
Provide Cell Structure
17.
What is a function of Nucleic Acids?
a)
Energy Source
b)
Store genetic information
c)
Long term energy storage
d)
Provide cell structure
18.
What is one of the functions of Proteins?
a)
Long term energy storage
b)
Store genetic information
c)
Energy source
d)
Provide cell structure
19.
pH has an effect on enzyme activity.
a)
True
b)
False
20.
You can use catalysts to speed up chemical reactions.
a)
True
b)
False
21.
Any substrate can bind to any active site on an enzyme.
a)
True
b)
False
22.
What type of bond occurs between every carbon in a saturated fat?
a)
Peptide bond
b)
Single covalent bond
c)
Double covalent bond
d)
Hydrogen bond
23.
Amino acids are held together by what type of bond?
a)
Ionic bond
b)
Single covalent bond
c)
Peptide bond
d)
Hydrogen bond
24.
Unsaturated fats have at least one of these types of bonds in between a pair of carbons.
a)
Single covalent bond
b)
Peptide bond
c)
Double covalent bond
d)
Hydrogen bond
25.
At room temperature, what form do unsaturated fats take?
a)
Gas
b)
Liquid
c)
Solid
d)
Plasma
26.
At room temperature, what form do saturated fats take?
a)
Gas
b)
Liquid
c)
Solid
d)
Plasma
27.
Which one of these is a secondary structure of proteins?
a)
Globular
b)
Fiber
c)
alpha helix
d)
Amino acid chain
28.
Which of the substances in the equation are the reactants?
AlBr3 + Cl2 --> AlCl3 + Br2
AlBr3 + Cl2 --> AlCl3 + Br2
a)
AlBr3 and AlCl3
b)
AlCl3 and Br2
c)
AlBr3 and Cl2
d)
Cl2 and Br2
29.
Which of the substances in the equation are the products?
AlBr3 + Cl2 --> AlCl3 + Br2
AlBr3 + Cl2 --> AlCl3 + Br2
a)
AlBr3 and AlCl3
b)
AlCl3 and Br2
c)
AlBr3 and Cl2
d)
Cl2 and Br2
30.
Reactants will be found on which side of the chemical equation?
a)
Left
b)
Right
31.
Products will be found on which side of the chemical equation?
a)
Left
b)
Right
32.
Which of the following is an indicator of a chemical reaction?
a)
Production of Heat
b)
Production of Light
c)
Production of Gas
d)
All of them
33.
Which of these is the balanced for of the following chemical equation?
K + B2O3 --> K2O + B
K + B2O3 --> K2O + B
a)
4K + B2O3 --> 2K2O + 2B
b)
6K + B2O3 --> 3K2O + 2B
c)
4K + B2O3 --> 2K2O + B
d)
6K + B2O3 --> 3K2O + B
34.
Which of these is the balanced for of the following chemical equation?
N2 + H2 --> NH3
N2 + H2 --> NH3
a)
2N2 + 2H2 --> 2NH3
b)
2N2 + 3H2 --> 2NH3
c)
N2 + 3H2 --> 2NH3
d)
N2 + H2 --> NH3
35.
Which of these is the balanced for of the following chemical equation?
Na + H2O --> NaOH + H2
Na + H2O --> NaOH + H2
a)
3Na + H2O--> 3NaOH + H2
b)
2Na + H2O--> 2NaOH + H2
c)
2Na + 2H2O--> 2NaOH + 2H2
d)
2Na + 2H2O -->2NaOH +H2
36.
Which monomer is this?
a)
Nucelotide
b)
Amino Acid
c)
Sugar
d)
Fatty Acid
37.
Reactants that bind to an enzyme are called what?
a)
Products
b)
Active Sites
c)
Catalysts
d)
Substrates
38.
The location where an enzyme binds to a substrate is called what?
a)
Catalyst
b)
Enzyme Site
c)
Active Site
d)
Binding Site
39.
Special proteins that speed up biological chemical reactions are called what?
a)
Substrates
b)
Catalysts
c)
Enzymes
d)
Active Sites
40.
What is the function of Lipids?
a)
Energy Source
b)
Long Term Energy Storage
c)
Store Genetic Information
d)
Provide Cell Structure
41.
Which type of bond forms between amino acids?
a)
Single Covalent Bond
b)
Ionic Bond
c)
Peptide Bond
d)
Hydrogen Bond
42.
How many levels of structure are then when building a protein?
a)
1
b)
3
c)
2
d)
4
43.
What is the term referring to the minimum amount of energy needed to start a chemical reaction?
a)
Going Energy
b)
Starting Energy
c)
Activation Energy
d)
Energy
44.
When building a strand of DNA, we know that bases have specific pairings. What always pairs with Thymine?
a)
Thymine
b)
Guanine
c)
Cytosine
d)
Adenine
45.
When building a strand of DNA, we know that bases have specific pairings. What always pairs with Guanine?
a)
Thymine
b)
Guanine
c)
Cytosine
d)
Adenine
46.
We know that there are 20 different amino acids. This would mean that there are 20 different...
a)
Hydrogen atoms
b)
Carboxyl groups
c)
Variable side chains
d)
Amino groups
47.
Although we focus on the fatty acid tail of the lipids, they also have what part?
a)
Head group
b)
Tail group
c)
Arm group
d)
Leg group
48.
Which of the following is not a form of Carbohydrate that we talked about?
a)
Disaccharides
b)
Polysaccharides
c)
Fiber
d)
Fatty Acid
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