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Unit 2 - Microscopes & Cellular Biochemistry

Total questions: 75

Worksheet time: 1hrs 2mins

Name
Class
Date
1.

Organic compounds are always based on what elements?

a)

Carbon & Hydrogen

b)

Water & Oxygen

c)

Carbon & Oxygen

d)

Glucose & Water

2.
Water is what type of compound?
a)
organic
b)
inorganic
c)
toxic
3.
Is this an example of an organic or inorganic compound?
a)
Organic
b)
Inorganic
4.
Is this an example of an organic or inorganic compound?
a)
Organic
b)
Inorganic
5.

What is the composition of a basic unit of fat?

a)

One molecule of glycerol and one molecule of fatty acid

b)

One molecule of glycerol and three molecules of fatty acids

c)

One molecule of fatty acid and three molecules of glycerol

d)

Three molecules of fatty acid and three molecules of glycerol

6.
Used for short term (quick) energy.
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acids
7.
Provides long term energy and insulation,
a)
lipids
b)
carbohydrates
c)
nucleic acids
d)
proteins
8.
Contains DNA and RNA
a)
lipids
b)
carbohydrates
c)
proteins
d)
nucleic acids
9.
Contains a phosphate, sugar and nitrogen base
a)
nucleic acid
b)
lipid
c)
carbohydrate
d)
protein
10.
Building blocks of the body, hair , muscles etc.
a)
protein
b)
nucleic acid
c)
lipids
d)
carbohydrates
11.
Identify the macromolecule in the picture
*GLUCOSE
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
12.
Organic compound that contains simple sugars as its building blocks
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
13.
Organic compound that amino acids as its building blocks
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
14.
Organic compound that is used as the primary energy source for a cell or organism
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
15.
Organic compound that includes glucose & starch
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
16.
Organic compound that comes in different shapes (coiled, folded, etc.) and sizes
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
17.
Organic compound that includes fats, oils, and waxes
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
18.
Organic compound that includes enzymes and hormones
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
19.
What are proteins broken down into?
a)
simple sugars
b)
amino acids
c)
nucleic acids
d)
fatty acids
20.
What are carbohydrates broken down into?
a)
simple sugars
b)
amino acids
c)
nucleic acids
d)
fatty acids
21.
a)
Building Blocks are amino acids and Product is a protein
b)
Building blocks are simple sugars and product is a protein
c)
building blocks are proteins and product is amino acid
d)
building blocks are carbohydrates and product is a protein
22.
Many organic molecules are too large to diffuse into cells so they must be digested into
a)
starch and protein
b)
simple sugars and amino acids
c)
starch and glucose
d)
glucose and protein
23.

Enzymes act as which of the following?

a)

Inhibitor

b)

Non-Inhibitor

c)

Acid

d)

Catalyst

24.

This is a substance that speeds up the rate of a chemical reaction, but is not itself changed but the reaction.

a)

Inhibitor

b)

Non-Inhibitor

c)

Catalyst

d)

Base

25.

The energy required to initiate a chemical reaction is known as which of the following?

a)

Activation energy

b)

Potential energy

c)

Kinetic energy

d)

Free energy

26.

How do enzymes work?

a)

Increase the rate of a chemical reaction by lowering the activation energy

b)

Decrease the rate of a chemical reaction by lowering the activation energy

c)

Increase the rate of a chemical reaction by increasing the temperature

d)

Decrease the rate of a chemical reaction by lowering the temperature of a given environment

27.

Which of the following are enzymes? Check ALL that apply!L

a)

Sucrose

b)

Sucrase

c)

Starch

d)

Lactose

e)

Lactase

28.

These molecules are the substances that bind to enzymes

a)

Activators

b)

Prohibitory molecules

c)

Enzymatic molecules

d)

Substrates

29.

Active sites are where chemical reactions occur between enzymes and reacting molecules. Where are the active sites located?

a)

On the reacting molecule

b)

On the enzyme

c)

On a separate molecule that binds to an enzyme temporarily, but leaves once the chemical reaction has started

d)

The reacting molecule and the enzyme both have a active site

30.

True of false: Enzymes can only be used once

a)

True

b)

False

31.

Which of the following hypotheses explain that enzymes are specific for only one type of molecule

a)

The enzymatic specificity hypothesis

b)

The specific enzyme match hypothesis

c)

The specific enzyme/molecule bond hypothesis

d)

The lock and key hypothesis

32.

Which of the following statements is true?

a)

Sucrase will never break down lactose because it is specific for sucrose

b)

Sucrase will only break down lactose in very specific conditions, such as a highly acidic environment

c)

Lactase breaks down sucrose and lactose

d)

Lactase breaks down sucrose and furctose

33.

Why do reactions that occur in lower temperatures take longer than reactions that occur in higher temperatures?

a)

The reaction is occurring slowly because enzymes will never work in cold temperature

b)

The reactions is occurring slowly because there is no energy

c)

The reaction is occurring slowly because energy is related to heat, so there is less energy in colder environments

34.
When a bond is broken
a)
energy is stored
b)
energy is released
35.
The process of removing water in order to form a bond between monomers is called....
a)
Dehydration Synthesis
b)
Hydrolysis
36.
The process of adding water in order to break bonds within a polymer....
a)
Dehydration Synthesis
b)
Hydrolysis
37.
The process of adding water in order to break bonds within a polymer....
a)
Dehydration Synthesis
b)
Hydrolysis
38.
The process of digesting a polysaccharide into individual monosaccharides is called....
a)
Dehydration Synthesis
b)
Hydrolysis
39.
The process of  bonding together nucleotides into a long chain is called....
a)
Dehydration Synthesis
b)
Hydrolysis
40.
The process of making a polymer by bonding together monomers is called
a)
Dehydration Synthesis
b)
Hydrolysis
41.
The process of breaking the bonds within a starch molecule in order to release glucose molecules is called......
a)
Dehydration Synthesis
b)
Hydrolysis
42.
In the following chemical reaction, what are the products:
Starch + Water -------> Glucose
a)
Starch + Water
b)
Glucose
43.
The monomer of a lipid is called...
a)
a nucleotide
b)
a monosaccharide
c)
an amino acid
d)
a fatty acid
44.
The monomer of a protein is called...
a)
an amino acid
b)
a monosaccharide
c)
a fatty acid
d)
a nucleotide
45.
The monomer of a nucleic acid is called... 
a)
an amino acid
b)
a fatty acid
c)
a monosaccharide
d)
a nucleotide
46.
The monomer of a carbohydrate is called...
a)
a monosaccharide
b)
a fatty acid
c)
an amino acid
d)
a nucleotide
47.

Enzymes are an example of

a)

Lipids

b)

Carbohydrate

c)

Protein

d)

Nucleic Acid

48.
What is the purpose  of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
49.
Each enzyme only has 1 substrate that will fit its active site.  What is this called?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
50.
What 3 letters do enzymes typically end in?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
51.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
52.
After the enzyme and substrate bind together and perform the reaction, what does the substrate become?
a)
a substrate
b)
an enzyme
c)
a product
d)
an active site
53.

In a chemical reaction, ________ are what you have at the end

a)

Products

b)

Molecules

c)

Reactants

d)

Substances

54.
In a chemical reaction, bonds are broken and new bonds are formed that create new substances. The bonds that are broken are called what?
a)
Reactants
b)
Products
c)
Atoms
d)
Catalysts
55.
Enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the
a)
enzyme substrate complex.
b)
reaction site.
c)
active site.
d)
lock and key.
56.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
57.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
58.
Which of these is most likely an enzyme?  
a)
Sucrose
b)
Galactose
c)
Fructose
d)
Amylase
59.
Connects monomers to form a polymer
a)
Dehydration synthesis
b)
hydrolysis
60.
Produces water as a by-product
a)
Dehydration synthesis
b)
Hydolysis
61.
Breaks up polymers, forming monomers
a)
dehydration synthesis
b)
hydrolysis
62.
Breaks up polymers, forming monomers
a)
dehydration synthesis
b)
hydrolysis
63.
Water is used to break bonds between polymers
a)
dehydration synthesis
b)
Hydrolysis
64.
Joins amino acids to form a protein
a)
Dehydration synthesis
b)
hydrolysis
65.
Nucleic Acids breaks up to form nucleotides
a)
Dehydration synthesis
b)
Hydrolysis
66.

a)

dehydration synthesis

b)

hydrolysis

67.

a)

dehydration synthesis

b)

hydrolysis

68.

a)

dehydration synthesis

b)

hydrolysis

69.
What is the total magnification of a microscope with two lenses when one lens has a magnification of 10x, and the other lens has a magnification of 30x?
a)
15x
b)
30x
c)
40x
d)
300x
70.
A microscope is an instrument that.
a)
makes faraway objects look closer.
b)
makes small objects appear larger.
c)
decreases the size of small objects.
d)
increases the size of small objects.
71.
When you focus on a new specimen, always begin with
a)
low power and coarse adjustment.
b)
low power and fine adjustment
c)
high power and coarse adjustment
d)
high power and fine adjustment
72.
If you move the slide left while viewing, in which direction will it appear to move?
a)
right 
b)
left
c)
up 
d)
down
73.
If you move the slide down while viewing, in which direction will it appear to move?
a)
right 
b)
left
c)
up 
d)
down
74.
If your teacher asks you to move a microscope to table, how do you carry it?
a)
by the body tube and the eyepiece
b)
with one hand
c)
one hand on the arm and the other under the base
d)
with one hand on the base and the other on the eyepiece.
75.

The greater the ___________________, the smaller the field you are actually viewing.

a)

detail

b)

objective

c)

magnification

d)

body

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