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BIOL 1021 Final Exam
Terms in this set (34)
How is life defined?
A. Life is defined through a set of shared characteristics that all living things display.
B. A living thing must be able to move.
C. The only requirement for life is the ability to reproduce.
D. Life is determined by neural activity.
When applying the process of science, which of these is tested?
A. An observation B. A conclusion
C. A hypothesis D. A control group
Why is one side of a water molecule partially negative while the other side is partially positive?
A. Uneven sharing of electron pairs occurs due to the strong pull of oxygen.
B. Uneven sharing of electron pairs occurs due to the strong pull of hydrogen.
C. Oxygen donates its electrons to hydrogen.
D. Hydrogen donates its electrons to oxygen.
What does "Descent with Modification" mean?
A. Natural selection.
B. New forms descending from earlier ones but with some changes.
C. Survival of the fittest.
D. Modern species replacing primitive species.
What prevents unsaturated fats from solidifying at room temperature?
A. Single bond between carbon atoms
B. Hydrogen bonds
C. Double bonds
D. Peptide bonds
The main source of energy for producers in an ecosystem is
A. light energy. B. kinetic energy.
C. thermal energy. D. chemical energy.
All of the following are part of an animal cell except?
B. A plasma membrane
C. A cell wall.
D. An endoplasmic reticulum.
What harvests energy from food molecules to make ATP?
A. Nucleus B. Mitochondria
C. Lysosome D. Chloroplasts
During which process is the most ATP generated in the cell?
B. The citric acid cycle
C. Electron transport coupled with chemiosmosis
What is the role of carbohydrates in the plasma membrane?
B. Structural integrity
C. Energy storage
D. There are no carbohydrates associated with the plasma membrane.
Which of the following best describes the chemical equation for photosynthesis?
A. Carbon dioxide + Sugar + Energy = Oxygen + Water
B. Oxygen + Water + Carbon dioxide = Sugar + Energy
C. Oxygen + Sugar = Water + Carbon dioxide + Energy
D. Water + Carbon dioxide + Energy = Sugar + Oxygen
Chlorophylls absorb light in which colors of the visible range?
A. Green and blue B. Blue and red
C. Green and red D. Blue and yellow
Water behind a dam has a certain amount of stored energy that can be released as the water falls over the top of the dam. It may be enough energy to turn a mill wheel or an electricity-generating turbine. Choose the term that best describes the type of energy stored in the water at the top of the dam.
A. Kinetic B. Potential
C. Chemical D. Radiant
Alcohol is a waste product produced by yeast in the presence of sugar and the absence of ________.
A. H2O B. ATP
C. O2 D. CO2
Seperation of the homologous chromosomes during anaphase I would be most affected by a drug that prevents
A. cell wall formation.
B. lengthening of microtubules.
C. formation of a cleavage formation
D. shortening of microtubules.
The pairing or lining up of homologous chromosomes along their lengths, which is essential for crossing over, is referred to as
A. syngamy. B. synapsis.
C. anaphase. D. recombination.
What leads to an individual having too many or too few chromosomes?
A. Independent assortment
B. Homologous recombination
D. Crossing Over
In a typical Mendel experiment on pea-seed color, if the dominant yellow seed-bearing plant was crossed with the recessive green seed-bearing plant, the F2 generation will show what ratio of each kind?
A. 1 yellow: 3 green
B. 1 yellow: 1 green
C. 3 yellow: 1 green
D. seeds with patches of green and yellow color
Why is mitosis more closely related to meiosis II?
A. They both involve the separation of homologous chromosomes during anaphase II.
B. They both involve the separation of sister chromatids.
C. They both have diploid cells at the end of cytokinesis II.
D. They both have haploid cells at the end of cytokinesis II.
Besides the ability of some cancer cells to over-proliferate (over grow), what else could logically result in a tumor?
A. Inability of chromosomes to meet at the metaphase plate.
B. Enhanced anchorage dependence.
C. Lack of appropriate cell death.
D. Changes in the order of cell cycle stages
How does HIV violate the Central Dogma of Molecular Biology?
A. RNA translated into protein
B. Protein translated into RNA
C. RNA is transcribed into DNA
D. DNA transcribed into RNA
What type of mutation changes a base and converts it to a stop codon?
A. Missense mutation
B. Frameshift mutation
D. Nonsense mutation
At a specific area of a chromosome, the sequence of nucleotides below is present where the chain opens to form a replication fork: 3' C C T A G G C T G C A A T C C 5'
An RNA primer is formed starting at the underlined T (T) of the template. Which of the following represents the primer sequence?
A. 5' G C C U A G G 3'
B. 5' G C C T A G G 3'
C. 5' A C G T T A G G 3'
D. 5' A C G U U A G G 3'
Which of the following enzymes is not matched correctly with its appropriate function?
A. Topoisomerase- relieves strain on the unwinding DNA strand.
B. DNA Polymerase III- adds nucleotides in the 3' to 5' direction.
C. DNA Polymerase I- removes the RNA primer and replaces it with DNA.
D. DNA ligase- connects and seals Okazaki fragments.
Antibodies are made by
A. T cells. B. mast cells.
C. macrophages. D. B cells.
A certain cell type has existed in the blood and tissues of its vertebrate host's immune system for over 20 years. One day, it recognizes a newly arrived antigen and binds to it, subsequently triggering a secondary immune response in the body. Which of the following cell types most accurately describes this cell?
A. B cell B. T cell
C. Memory cell D. macrophage
Phagocytes kill harmful bacteria by
A. endocytosis (engulfing).
B. producing antibodies.
C. complement proteins.
D. T cell stimulation.
Lymphocytes (T and B cells) are formed in what organ(s)?
C. Bone marrow
D. Spleen and bone marrow
E. Thymus and bone marrow
A boy falls while riding his bike. A scrape on his hand almost immediately begins to bleed and becomes red, warm, and swollen. What response is occurring?
A. inflammatory response
B. lytic response
C. adaptive immune response
D. tumor response
DNA profiling relies on an individual's ________, no two of which are the same between different people, except identical twins.
A. unique fingerprints
B. unique set of genes
C. unique set of genes
D. unique DNA based sequences
PCR is used to copy just a relatively small region of DNA, not the entire genome. How do researchers specifically target the region of interest?
A. They construct a probe that encodes the entire region of interest.
B. They cut the region of interest out of the DNA sample and use that as a template for DNA synthesis.
C. They use two primers, each about 15 to 20 nucleotides long, that flank the region of interest.
D. They use a shotgun technique, which involves duplicating everything, and then they select the region of interest.
Which of the following does not occur in the nucleus
A. DNA replication B. Transcription
C. Translation D. mRNA processing
Which enzyme links Okazaki fragments?
A. Primase B. Ligase
C. Polymerase D. Helicase
Amino acids are transported to the ribosome for use in building the polypeptide by
A. mRNA molecules.
B. tRNA molecules.
C. DNA polymerase molecules.
D. rRNA molecules.
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