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WorksheetsFall 2019-2020 Biology Final
Total questions: 30
Worksheet time: 43mins
What evidence best supports the Endosymbiotic Theory, which states that current cell
organelles like mitochondria and chloroplasts were once prokaryotic cells consumed by other
prokaryotic cells?
Mitochondria and chloroplasts can break away and live on their own without the host cell.
Mitochondria and chloroplasts act as parasites inside the host cell.
Mitochondria and chloroplasts have DNA coding different from the nuclear DNA.
Mitochondria and chloroplasts are both performing the same function.
There are no membrane-bound organelles
inside _______, means that there will not
be any _________ found inside of them.
eukaryotes; nucleus
eukaryotes; ribosomes
prokaryotes; mitochondria
prokaryotes; ribosomes
Which of the following occurs during a
lysogenic cycle?
viral DNA is replicated and the host cell
is destroyed
viral DNA is not replicated and the host
cell is destroyed
viral DNA is replicated and the host cell
is not destroyed
viral DNA is not replicated and the host
cell is not destroyed
HIV attacks cells inside humans called CD4
cells, which causes a disruption of a
certain body system. To which system do
these cells belong?
Circulatory System
Immune System
Nervous System
Respiratory System
Which list describes the organization of the
human body from the most complex to the
least complex?
epithelial tissue, large intestine,
digestive system
digestive system, large intestine,
epithelial tissue
cardiovascular system, respiratory
system, digestive system
stomach, small intestine, large intestine
Which of the following represents the same
level of organization in plants as blood is
for animals?
chloroplast
water
leaf
Compared to mitosis, meiosis results in a
greater.....
amount of cell cytoplasm per cell
number of daughter cells per cell
amount of genetic material per cell
number of cell chromosomes per cell
Which of the following may result in
cancer?
I. Poor diet
II. Chemicals in cigarettes
III. Ultraviolet light
IV. Tobacco use
I only
I & II
I, II, III, & IV
none of these
Which of these changes in a cell would
cause a normal cell to become an
unregulated, cancerous cell?
Any mutation that decreases the
normal activity of the genes that make
tumor-suppressing proteins.
The repair of damaged DNA.
The tumor-suppressing gene mutates
and causes premature cell death.
Any mutation that leads to an allele
that is NOT increasing the fitness of
the organism.
The human body uses specialized proteins to speed up chemical reactions. These proteins are called enzymes. Without enzymes, the reactions in the body would happen too slowly to keep you alive. Enzymes are made during protein synthesis, which occurs at a cell's ribosomes.
Which biomolecule provides the instructions?
Carbohydrates
Lipids
Nucleic acids
Proteins
What monomer is represented by this
diagram?
monosaccharide
nucleotide
glycerol
amino acid
Name the stages of cellular respiration
that come before and after the stage
represented in this diagram.
glycolysis, electron transport chain
glycolysis, alcohol fermentation
glycolysis, lactic acid fermentation
electron transport chain, glycolysis
What compound is most likely found at
W?
NADH
ATP
C6H12O6
pyruvate
Identify substances which best complete
the diagram at U and Y.
U - H2O and CO2; Y - C6H12O6 and
O2
U - CO2 and O2; Y - C6H12O6 and
H2O
U - C6H12O6 and O2; Y - CO2 and
H2O
U - CH2O and CO2; Y - CO2 and H2O
Identify structures T and V.
nucleus, nucleolus
chloroplast, mitochondrion
smooth ER, rough ER
ribosomes, Golgi apparatus
Which molecule allows large materials to be transported across the membrane?
Carbohydrates
Lipids
Nucleic acids
Proteins
Beeswax is a waxy substance that is produced by bees and then harvested by humans for a
variety of uses. Ancient Romans used beeswax as a waterproofing agent because it is not
water-permeable.
Beeswax is which of the following types of organic molecule?
carbohydrate
lipid
nucleic acid
protein
What occurs inside of a cell while it is performing the process of respiration?
Sugar is broken down to generate adenosine triphosphate (ATP)molecules that are used for energy.
The negative charge inside of the cell is used to increase the concentration
chemicals inside of the cell.
Light reactive chemicals combine carbon dioxide (CO2 ) and water to form
glucose molecules that are stored as food.
The cell membrane forms around air bubbles to create a vacuole that is
used to separate the oxygen from the rest of the air.
Which statement explains how consumers depend upon producers for their survival?
Producers make glucose and carbon dioxide for consumers to use during cellular respiration.
Producers make glucose and oxygen for consumers to use during cellular respiration.
Producers require glucose and oxygen that consumers make during cellular respiration.
Producers require oxygen and carbon dioxide that consumers make during cellular respiration.
Amylase is an enzyme that helps break down complex carbohydrates into simple carbohydrates.
This enzyme is present in the saliva in the mouth. When salivary amylase is in the stomach, it
stops functioning.
Which of the following best explains the change that occurs when salivary amylase enters the
stomach?
Amylase is used up in digestion of proteins in the stomach.
The alkaline pH of the stomach inhibits the amylase.
Amylase is denatured in the acidic pH in the stomach.
All complex carbohydrates are already broken down when swallowed.
In the Enzyme-Substrate Complex shown above, what is represented by Y?
Enzyme
Substrate
Active site
Product
Which of the following nucleotides is NOT found in DNA?
thyamine
cytosine
uracil
guanine
Nucleotides are composed of a phosphate group, a sugar, and a nitrogenous base. DNA is made
up of long strands of nucleotides. Which part of the above molecule can differ between
nucleotides?
the sugar
the phosphate group
the nitrogenous base
there is no differing structure in nucleotides
Which type of ribonucleic acid carries the
coding information to the site of protein
synthesis?
mRNA
tRNA
sRNA
rRNA
Study the sentences describing the steps
of protein synthesis. Which sequence
places the steps in the correct order?
1. Transfer RNA picks up individual amino
acids and carries them to the ribosome.
2. Ribosomal RNA bonds mRNA and tRNA.
3. A single strand of DNA serves as a
template for making mRNA.
4. Messenger RNA carries the sequence
of nucleotides to the ribosomes.
5. A protein is synthesized.
2,5,3,4,1
3,4,1,2,5
3,2,4,5,1
2,4,1,5,3
A mutation that results in a nucleotide being inserted into the DNA sequence most likely occurs
during the process of —
replication
transcription
translation
transformation
Mutations within the DNA sequence of an organism can —
result in alterations that are harmful to an organism
result in alterations that are helpful to an organism
result in alterations that do not effect the organism
all of the above
Which of the following best describes a tissue?
the smallest functioning unit of a living organism
a group of cells working together to perform a specific function
a group of organs that work together to perform a specific function
a specialized unit within a cell that has a specific function
According to the above table, which level of biological organization is represented on Day 2 of
the student’s observations?
Organism
Population
Community
Ecosystem
Which statement best describes the end result of this process?
Two new DNA molecules are formed, each identical to the original.
New molecules of mRNA are transcribed from the DNA molecule.
A protein molecule is synthesized from the code in the DNA molecule.
The new DNA molecules are made from opposite DNA strands so they are not identical.
