Download Exam (One) Practice Questions

Biology
Exam (One) Practice Questions
Multiple Choice Questions. Choose the answer that best answers or completes the question/statement.
1.
Which of these levels of biological organization includes all others?
a. cell
b. molecule
c. organ
d. tissue
e. macromolecule
*Be able to list all of the levels we discussed in class from simple (molecule) to most complex (biosphere)
2.
3.
Organisms that are eukaryotes are in the domain(s):
a. Bacteria and Archaea
b. Plantae and Animalia
c. Eukarya only
d. Archaea and Plantae
e. Fungi and Bacteria
Which of the following is not an example of a cell type found in domain Eukarya?
a. Plant cell
b. Paramecium cell (a protist)
c. Fungal cell
d. A cell from your body
e. Bacteria
4.
The local pond is home to a single type of fish. Together, these fish represent
a. biosphere
b. a community
c. a population
d. an ecosystem
e. a biosphere
5.
If you are asked to look into a microscope to see a bacterial cell, you will be looking for a cell that ,
a. has a membrane bound nucleus.
b. lacks organelles surrounded by membranes
c. is much larger than a typical human body cell
d. does not have DNA
e. none of the above.
6.
Several tissues together make up a(n)
a.
cell
b. tissue
c. organ
d. organ system
7.
What is true about a hypothesis?
a. It is the same as a theory.
b. It is an explanatory idea that is broad in scope and supported by a large body of evidence.
c. It is a widely accepted idea about a phenomenon.
d. It is falsifiable and testable.
e. It is written as a question.
8.
A scanning electron microscope,
a. is used to study the details of internal cell structure.
b. is used to study the details of living cells
c. is more powerful than the light microscope.
d. uses visible light to magnify a specimen.
e. is none of the above.
e. organism
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Biology
9.
Exam (One) Practice Questions
The mass number of an atom is equal to the________________ .
a. number of neutrons
d. average of the mass of all isotopes for that atom
b. number of neutrons & protons
e. valence shell electrons only
c. number of protons only
10. If
a.
12
C has an atomic number of 6 it has______________neutrons.
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b. 6
c. 8
d. 18
e. there is not enough information
11. What is the atomic mass of an atom that has 2 protons, 2 neutrons, and 2 electrons?
a.
2
b. 4
c. 6
d. -1
e. 8
12. Describe the structure of an atom.
13. If atom “A” has 2 electrons in its lone orbital (also its valence shell) and atom “B” has 2 orbitals and 4 electrons in its valence
shell, which atom is more reactive or more unstable?
a.
Atom “A”
b. Atom “B”
14. Triglycerides are _________.
a.
steroids
b. lipids
c. nucleic acids
d. proteins
e. carbohydrates
15. Polar covalent bonds are formed when,
a. valence shell electrons are unequally shared.
b. atoms involved in a bond have a similar electronegativity.
c. valence shell electrons are equally shared.
d. valence shell electrons are transferred from one atom to another.
e. positively charged ions are formed.
16. What does the octet rule in chemistry state?
17. What is the fundamental difference between covalent and ionic bonding?
18. Maltose is made up of two molecules of glucose linked together and therefore is an example of a(n)__________.
a.
monosaccharide
b. disaccharide
c. polysaccharide
d. lipid
e. protein
19. Examine the chemical C6H12 O6. Which of the following statements about it is TRUE?
a. it is a protein
b. it is a phospholipid
c. it is a nucleic acid
d. it is an organic compound
e. it is an inorganic compound
20. Which of the following terms includes (can define) all other terms in this list?
a. steroid
b. cholesterol
c. lipid
d. triglyceride
e. phospholipid
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Biology
Exam (One) Practice Questions
21. Which of the following constitutes a polymer of nucleotides?
a.
monosaccharide
b. polysaccharide
c. polypeptide
d. polynucleotide
e. lipid
22. A polysaccharide forms when
a. two monosaccharides join by dehydration synthesis.
b. more than two monosaccharides join by dehydration synthesis.
c. two monosaccharides join by hydrolysis.
d. two starches join by hydrolysis.
e. Two fatty acids join by dehydration synthesis
23. What is the ratio of fatty acids to glycerol in phospholipids?
a.
1:1
b. 2:1
c. 3:1
d. 4:1
e. 6:1
24. What is special about the “head” and “tail” portion of a phospholipid?
25. A polypeptide being broken down into amino acids is a good example of a(n) ___________ reaction.
a. exchange
b. reversible
c. dehydration synthesis
d. hydrolysis
26. Which of the following functional groups is a carbonyl group?
a.
–OH
b. –NH2
c. –COOH
d. –SH
e. –CO
27. Water is an example of a ______________________molecule.
a. hydrophobic
b. ionic
c. nonpolar covalent
d. polar covalent
28. When water molecules stick to one another this is called,
a.
adhesion
b. polarity
c. cohesion
d. transpiration
e. evaporation
29. Which of the following statements regarding nucleotides is TRUE?
a. Nucleotides are the monomers of lipids
b. Nucleotides contain sugar molecules.
c. Nucleotides contain sulfur groups.
d. Nucleotides can be linked together to form polysaccharides.
e. None of the above
30. What are all of the important features of the plasma membrane? Think structure and function.
31. What is the diameter (range) of most animal and plant cells?
32. What organelles are found only in plant cells? Only in animal cells?
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Biology
Exam (One) Practice Questions
33. You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see
cell walls and no membrane-bound organelles. You conclude correctly that the cells
a. are plant cells.
b. are animal cells.
c. are bacterial cells.
d. could be either plant or bacterial cells.
e. could be plant, animal, or bacterial cells.
34. In the plasma membrane, the fatty acid tails,
a. are hydrophilic and face outward toward the aqueous solution on both sides of the membrane
b. are hydrophilic and face inward, shielded from water
c. are hydrophobic and face outward toward the aqueous solution on both sides of the membrane
d. are hydrophobic and face inward, shielded from water
e. are none of the above
*If you can write a brief definition of the organelles discussed in class, then you will do great on the portion of the exam that
focuses on cellular organelles.
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