UNIT 1 TEST REVIEW
QUESTION 1
Maria is interested in starting a sunflower farming business. She
purchased all of the necessary materials and started planting.. After 4
years, she noticed her sunflowers were not growing at the same rate. She
needed to find out what was wrong.
Which of the following would not be a reliable source for information on
this topic?
a. Use the internet to find out what Wikipedia recommends
b. Talk to an expert in the field of sunflower farming
c. Check the library for books about growing sunflowers
d. Speak to a professor at a local university with expertise in this subject
QUESTION 2
After some research, Maria is lead to believe that the containers she
used to plant her sunflower seeds might not be large enough to
support growth beyond 4 years.
Which of the following might be a possible hypothesis for an
experiment to prove what she believes?
a. If I poke holes in the soil my sunflowers will grow larger
b. If I move my sunflowers to get more sunlight they will grow
larger
c. If I add extra water they will grow larger
d. If I plant my sunflowers in larger containers they will grow larger
QUESTION 3
Which of the following experiments would be the best way to prove
or disprove Maria’s hypothesis?
a. Plant some of her sunflowers in larger containers and measure
over a year
b. Plant all of her sunflowers in larger containers and measure for a
year
c. Get sunflower seeds and plant half in her usual container and
half in the new larger container and measure after 5 years
d. Plant only one of her plants to a larger container and measure for
a year
QUESTION 4
Maria measured the height of her sunflowers every 2 months for over
a year. What were Maria’s independent and dependent variables?
a.
b.
c.
d.
I= sunlight ; D= number of plants being measures
I= sunlight; D= container size
I= container size; D= plant growth
I= amount of research; D= amount of water
QUESTION 5
What is the name of the bond that unites carbohydrates?
a. Ester bonds
b. Phosphodiester bonds
c. Glycosidic Linkage
d. Peptide bond
QUESTION 6
Which molecule has a pentose sugar, phosphate group and
nitrogenous base as a monomer as well as storing and transmitting
genetic information?
a. Lipids
b. Carbohydrates
c. Nucleic Acids
d. Proteins
QUESTION 7
Which molecule is the primary source of energy for living organisms?
a. Carbohydrates
b. Lipids
c. Proteins
d. Nucleic Acids
QUESTION 8
Which biomolecule is a secondary source of energy and is used as
long term energy storage?
a. Nucleic acids
b. Carbohydrates
c. Lipids
d. Proteins
QUESTION 9
Looking at the graph above, at what pH is the enzyme most
effective?
a. 6.8
b. 7.2
c. 6.9
d. 7.1
QUESTION 10
A _____________ will be affected if the order a its monomers is
changed.
a. Protein
b. Mineral
c. Starch
d. Lipid
QUESTION 11
Plants store their energy in the form of:
a. Fatty acids
b. Glycogen
c. Amino acids
d. Starch
QUESTION 12
Which molecule is not correctly paired with their monomer?
a. Carbohydrate – monosaccharide
b. Lipid – disaccharide
c. Nucleic acid – nucleotide
d. Protein – amino acid
QUESTION 13
The wax that protects apples and gives it glossy appearance belongs to
which organic molecule group?
a. Protein
b. Lipid
c. Carbohydrate
d. Nuclei acid
QUESTION 14
What are the building blocks for lipids?
a. Glycerol and fatty acids
b. Amino acids
c. Nucleotide
d. Triglycerides
QUESTION 15
When starches are broken down, they are broken down into:
a. Nucleotides
b. Monosaccharide
c. Amino acids
d. Glycogen
QUESTION 16
What kind of bond holds proteins together?
a. Glycosidic linkage
b. Phosphodiester bonds
c. Peptide bonds
d. Ester bonds
QUESTION 17
Why is the shape of an enzyme important?
a. Enzymes can be found in all living things
b. Enzymes are specific to a substrate
c. Enzymes can work in all levels of pH
d. Enzymes can work in all salinity levels
QUESTION 18
What is the function of enzymes in regards to activation energy?
a. Causes more hydrogen bonds to be formed
b. Changes the pH of a solution
c. Increases the activation energy
d. Decreases the activation energy
QUESTION 19
Which molecule does the diagram represent?
a. Starch
b. Fatty acid
c. DNA
d. glycerol