Bio 201 Final Exam Study Questions with Correct Answers Merged. Verified
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Course
Bio 201
Institution
Bio 201
1. Proteins are largely responsible for the traits of living organisms, while ________ provides the
blueprint for the organization, development, and function of living things. - -DNA
2. What feature of genetic mutations can eventually lead to the evolution of new species? -
Mutations produce ...
Bio 201 Final Exam Study Questions with Correct
Answers Merged. Verified
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1. Proteins are largely responsible for the traits of living organisms, while ________ provides the
blueprint for the organization, development, and function of living things. - -✓DNA
2. What feature of genetic mutations can eventually lead to the evolution of new species? - -
✓Mutations produce changes in the DNA sequence of a gene.
3. The complete genetic composition of an organism is called its - -✓genome.
4. A researcher decides to test the scientific validity of the common phrase "An apple a day keeps
the doctor away." What would be a valid hypothesis to investigate this specific question? - -✓The
daily consumption of a single apple does not change the number of visits to the doctor.
5. Tritiated hydrogen (3H) differs from hydrogen (1H) in that - -✓) 3H has 2 more neutrons than 1H
6. When one atom loses an electron to another atom, it results in the formation of - -✓cations and
anions that can form ionic bonds.
7. What type of bonding is likely to occur between two water molecules or strands of DNA? - -
✓covalent
8. Carbon and hydrogen have similar electronegativities and combine together to form
hydrocarbon molecules. What type of bonds form between these atoms? - -✓nonpolar covalent
9. Amphipathic molecules - -✓possess both hydrophilic and hydrophobic properties.
,10. If orange juice has a pH of 4, then it can be described as - -✓an acidic solution
11. The addition of a strong acid like HCl to an aqueous solution would result in - -✓a decrease in pH
12. Select the statement that is true when comparing solutions with a pH of 6 and a pH of 8. - -✓The
solution with a pH of 6 has a 100 times higher concentration of hydrogen ions than a solution
with a pH of 8.
13. A dehydration reaction - -✓is used to form polymers
14. Glycogen is to animal cells as ________ is to plant cells. - -✓starch
15. ______ is a polymer of glucose - -✓Cellulose
16. A disaccharide, such as maltose, consists of two molecules of glucose linked by what type of
bond? - -✓glycosidic
17. Fats and fatty acids - -✓are insoluble in water.
18. The major class of macromolecules that stores energy and makes up the major component of
plasma membranes are - -✓lipids
19. A phospholipid has ________ fatty acids attached to glycerol, whereas a fat has ________. - -✓2;
3
20. The portion of an amino acid that makes the amino acid unique among the 20 different amino
acids is - -✓the side chain or R-group.
21. An amino acid is to a protein as a ________ is to a nucleic acid. - -✓nucleotide
, 22. In order to visualize the fine structure of viruses and cytoskeletal filaments at 10-25 nanometers
in diameter the type of microscopy that would be most effective is - -✓transmission electron
microscopy.
23. Prokaryotes, such as bacterial cells, differ from eukaryotes in that eukaryotes - -✓possess
membrane-bound organelles.
24. FtsZ, MreB, and CreS proteins regulate the shape and structure of bacterial (prokaryote) cells.
These proteins are homologous to the ________ in eukaryotes. - -✓cytoskelaton
25. Ribosomes are the structures in the cell that produce - -✓proteins
26. The route that most accurately describes secretory protein movement through the
endomembrane system would be - -✓rough endoplasmic reticulum→vesicles→ Golgi
apparatus→vesicles →plasma membrane.
27. Cyanide binds and impairs one of the molecules involved in the synthesis of ATP. The target
organelle for cyanide must be - -✓mitochondria.
28. The cytoskeletal structure(s) that are composed of actin and regulate cell shape, cell movement,
and muscle contraction include - -✓microfilaments.
29. When one oxygen atom shares two pairs of electrons with another oxygen atom, O2 is formed
via a(n) - -✓double covalent bond.
30. The nucleus of an atom is composed of ________________A) protons. - -✓protons and
neutrons.
31. Which of the following is not true of water? - -✓It is a relatively poor solvent.
32. What is the chemical mechanism by which cells break down polymers? - -✓hydrolysis
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