Download Fall 08 – BIOL 1000 – 1st lecture test – 9:00 1. Glycogen is an

Fall 08 – BIOL 1000 – 1st lecture test – 9:00
1. Glycogen is an example of a:
A. carbohydrate
B. protein
C. nucleic acid
D. lipid
2. The monomers that make up glycogen are:
A. nucleotides
B. amino acids
C. fatty acids
D. monosaccharides
3. In the scientific method, after you form a hypothesis, what is the next step?
A. design an experiment
B. draw a conclusion
C. publish your results
D. collect data
4. Which of the following is a characteristic of all living organisms?
A. have nuclei within their cells
B. have organelles
C. use energy
D. all of the above
5. The molecule found below is a/an:
A. carbohydrate
B. amino acid
C. nucleotide
D. fatty acid
6. The functional group found in the molecule above is a/an:
A. amino group
B. carboxyl
C. phosphate
D. acetate
7. If sucrose (a disaccharide) is broken down into glucose and galactose
(monosaccharides), and water is required. This process is an example of:
A. hydrolysis
B. polar bonding
C. hydrogen bonding
D. dehydration synthesis
8. Collagen is a protein. The monomers that make up collagen are:
A. amino acids
B. monosaccharides
C. nucleotides
D. fatty acids
9. What do all amino acids contain?
A. a carboxyl group, and an amino group
B. all carbons are bonded to other carbons with a single bond
C. a nucleotide
D. all of the above
10. (T or F) You and I can't digest cellulose.
11. Calcium has an atomic # of 20. How many electrons does a neutral calcium atom
have in its outer shell?
A. 4
B. 8
C. 2
D. 6
12. How many electrons does a neutral calcium atom need to add to fill its outer shell?
A. 0
B. 8
C. 4
D. 6
Use the information below to answer the next 4 questions:
An iron atom (Fe-) has an atomic # of 26, a negative charge, and an atomic mass of 51.
13. The number of electrons in this atom could be which of the following?
A. 25
B. 27
C. 26
D. none of the above
14. How many neutrons would this atom have?
A. 26
B. 27
C. 25
D. cannot be determined from the information above
15. How many protons would this atom have?
A. 25
B. 26
C. 27
D. cannot be determined from the information above
16. The above atom would be an example of a/an:
A. ionic bond
B. polar covalent molecule
C. ion
D. organic molecule
17. If you go to the doctor, the best thing for your health is for:
A. your LDL (low density lipoprotein) count to be high, and your HDL (high density
lipoprotein count) to be low
B. your LDL to be low and your HDL to be high
C. both LDL and HDL count to be high
D. both LDL and HDL count to be low
18. Which of the following is true of carbohydrates?
A. are hydrophobic
B. are composed of amino acids
C. used for energy storage
D. all of the above
19. In ammonia (NH3), the hydrogen end of the molecule is more positive than the
nitrogen end. If the hydrogen end were attracted to the negative end of another ammonia
bond.
molecule, then this would be an example of a/an
A. hydrogen
B. polar covalent
C. ionic
D. nitrogen
20. In magnesium oxide, 2 electrons leave the magnesium atom and are accepted by the
oxygen atom. This exchange of electrons gives the oxygen atom a negative charge and
the magnesium atom a positive charge. This difference in charge holds the two atoms
together. This is an example of a/an
bond.
A. hydrogen
B. polar covalent
C. ionic
D. nuclear
21. (T or F) Prokaryotic cells do not contain DNA.
If HBr is dropped into solution it will break apart into H+ and Br- ions.
22. HBr is a/an:
A. acid
C. organic molecule
B. base
D. fatty acid
23. When HBr is dropped into a solution, the pH of that solution:
A. increases
B. decreases
C. stays the same
D. becomes 0
24. Which of the following might be a pH found in your stomach?
A. 2.5
B. 7.4
C. 9.2
D. 13.5
25. (T or F) Plant cells have a cell wall, but no cell membrane.
26. This organelle is responsible for producing lipids:
A. golgi complex
B. nucleus
C. mitochondria
D. smooth endoplasmic reticulum
27. Actin and myosin are examples of
, which are parts of the cytoskeleton
that allow your muscle cells to change shape.
A. microfilaments
B. intermediate filaments
C. microtubules
D. lesser filaments
28.
A. microfilaments
C. microtubules
are the structures found in the cell extensions cilia and flagella.
B. intermediate filaments
D. lesser filaments
29. (T or F) The interior of the cell membrane is hydrophilic.
30. Which of the following is not found in animal cells?
A. lysosomes
B. central vacuole
C. golgi complex
D. cytosol
31. Which of the following is a function of proteins in the cell membrane?
A. receptor for chemicals
B. channel between cells
C. identification tag
D. all of the above
32.
A. protein
C. nucleic acids
maintains the fluidity of the cell membrane.
B. carbohydrates
D. cholesterol
33. As the concentration of OH- ions in a solution increases, the pH:
A. increases
B. decreases
C. stays the same D. increases then decreases
34. Functional groups are the groups of atoms that:
A. are polar
B. are negatively charged
C. are usually involved in chemical reactions
D. always contain carbon
35. Which of the following would a plant use to store energy?
A. cellulose
B. starch
C. glycogen
D. RNA
36. When a protein's form or function is changed by exposure to extreme temperatures or
pHs, this is referred to as:
A. hydrolysis
B. being denatured
C. dehydration synthesis
D. polymer reduction
37. Sodium 22 has 11 protons and 11 neutrons. Sodium 19 has 11 protons and 8
neutrons. Sodium 19 is a/an:
A. ion
B. polar molecule
C. isotope
D. anion
38. This organelle ships proteins to their final destination.
A. lysosomes
B. golgi complex
C. smooth endoplasmic reticulum
D. ribosomes
39. When neutrons are lost from the nucleus of an atom, this creates:
A. potential energy
B. an ion
C. radioactive energy
D. all of the above
40. (T or T) Before this class I never knew that Bambi was such a ruthless killer, but now
that I think back, that Thumper character always seemed a little sketchy too!