WorksheetsBiology Final Exam
Total questions: 75
Worksheet time: 2hrs 49mins
Which of the following is NOT a biological molecule>
Carbohydrates
Lipids
Proteins
Water
Which is a characteristic of most single-celled organisms?
They have a complex nervous system.
They contain several different types of cells.
They perform all life processes.
They have a circulatory and a respiratory system.
Cells
have the same DNA regardless of type
have DNA based on cell type
The picture below is an example of _________________.
osmosis
isotonic
diffusion
active transport
Mitotic cell division is...
the process in which a daughter cell copies itself to generate one new cell.
the process in which a parent cell copies itself to generate four identical daughter cells.
the process in which a parent cell copies itself to generate two identical daughter cells.
Plant cells make their own food by taking in
oxygen and water.
oxygen and hydrogen.
carbon dioxide and water.
carbon dioxide and oxygen.
In what organelle of plant cells does photosynthesis occur?
mitochondria
centrioles
chloroplast
ribosomes
A nucleotide is composed of
A phosphate, sugar and nitrogenous base
A protein, protein and Guanine
A phosphate, Adenine, and nitrogenous base
A protein, Adenine and nitrogenous base
Why must transcription occur where DNA can be found?
because DNA can't leave
because ribosomes are in the nucleus
because DNA polymerase is found there
because helicase unzips the DNA
Which organelle is the location where protein is made?
Ribosome
Nucleus
Cytoplasm
Nucleotide
When these bond together, they form a protein
Amino Acids
Peptide Bonds
Ribose
Nucleotides
If the diploid number of carrots is 18, the haploid number is
18
9
27
36
The exchange of pieces of chromatin between homologous chromosomes during Prophase I of meiosis is called
independent assortment
mutation
crossing over
random fertilization
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
Substitution
Deletion
Insertion
Frameshift
Why are insertion and deletion (frameshift) mutations so harmful?
They change all of the codons from the mutation on down the line, which changes the amino acid sequence
They insert things that an organism doesn't need.
They often delete things that organisms need.
Insertion and deletions are not any more harmful than substitution mutations.
What does the notation TT mean to a geneticist?
two dominant alleles
heterozygous alleles
at least one dominant allele
one dominant and one recessive allele
Factors that control traits are called
parents
genes
purebreds
recessives
If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?
25%
50%
75%
100%
Which of the following statements about chromosomes is correct?
Chromosomes are long, thread-like structures
Chromosomes are found in the nucleus of all cells in the human body
Chromosomes contain DNA
All of the above
When organisms are better adapted to their environment they will survive and reproduce more successfully than organisms less adapted. This process is called what?
Selective breeding
Natural Selection
Cloning
Evolution of all species
Sometimes bones in the front limbs of animals are very similar in structure. What do we call similar bone structures that indicate a link to a common ancestor?
Adaptations
Gradualism
Homologous Structures
Extinction
What most likely caused the finches on the Galapagos Islands to have beaks that were different from the finches on the mainland?
There were different types of predators on the island.
There were different types of food available on the island.
The finches had no water to drink.
The finches on the mainland could not fly high enough.
The history of life as documented by the remains or imprints of organisms from earlier geologic periods preserved in rock is called the _______________.
fossil record
rock bed
chemical compound
varying isotope
_________________ show clear changes in an organism over time, the environment organisms lived in, the time period the organism lived in, and where the organism lived.
DNA
Vestigial structures
Fossils
Homologous structures
Recently, scientists have been able to use ___________to find common proteins and amino acids to determine how closely related species are.
DNA
Vestigial structures
Fossils
Homologous structures
Viruses are microscopic infectious agents that can only replicate inside a host cell
FALSE
TRUE
Which kingdoms contain autotrophic organisms?
Protista and Fungi
Fungi and Animalia
Plantae and Protista
Animalia and Plantae
How does an amoeba move?
It uses cilia.
It uses a flagellum.
It uses pseudopods.
It cannot move.
Which organelle functions to remove excess water in many protists?
micronucleus
contractile vacuole
food vacuole
oral groove
The long, whip-like structure which helps some protists move is called the ______________.
cilia
flagellum
tail
pseudopod
What substance is made through photosynthesis and is food for the plant?
Chlorophyll
Chloroplast
Glucose
Dextrose
Which of the following is a unicellular fungus?
Foraminifera
Yeast
Amoeba
Algae
Which of the following statements account for the change in population seen between years 7 and 8?
The birth rate of the pigeons increased.
The emigration rate of the pigeons decreased.
The death rate of the pigeons exceeded the birth rate.
The neighborhood reached its carrying capacity for the pigeon population
Which of the following is an example of incomplete dominance?
A red cow and a white bull have a red and white spotted calf.
Human ABO blood types
A red flowering plant and a white flowering plant have pink flowered offspring.
A tall plant and a short plant have tall offspring.
