Questions with Answers Graded A+
1. Define the body movement involved in retraction and protraction.: retraction is the
movement towards the back of the body (ex: moving your shoulders back- wards)
protraction is the movement towards the front of the body
2. Name the anatomical pair of terms that best describe the direc!ons of the red arrows in
the figure below. (Note that two responses are needed for full credit: Superior-Inferior
3. Determine whether each of the following statements is true or false. The ventral
cavity primarily protects the nervous system organs.: False
4. Determine whether each of the following statements is true or false. The dorsal
cavity primarily protects the nervous system organs.: True
5. Name the planes of the body shown in Figures A and B below.: A =
Frontal/Coronal;
B=Transverse/Horizontal
6. Each of the following statements is true of prokaryotic cells, except: Prokaryotic
cells are typically smaller than eukaryotic cells.
DNA of a prokaryotic cell is enclosed in a nuclear membrane. Prokaryotic
cells contain plasma membranes and ribosomes.
Prokaryotic cells do not contain lysosomes and Golgi apparatus.: DNA of a prokaryotic cell is
enclosed in a nuclear membrane.
7. True or False; if false, make the statement true:
Ribosomes synthesize lipids.: Smooth ER synthesizes lipids.
8. Name the two structures (A and B) found inside the cell below.: A = Golgi
complex/apparatus
B = Mitochondria
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, 9. Which of the following is NOT true concerning a cell wall? Cell walls
are found mainly in plants and bacteria.
Bacteria and plants contain mul!ple layers of cellulose fibers. Cell walls act
as protec!on for bacteria.
Bacterial cell walls contain peptidoglycan structures.: Bacteria and plants con- tain mul!ple
layers of cellulose fibers.
10. Fill in the blank: is the diffusion of relatively larger lipid insoluble (polar)
molecules through the cell membrane with the assistance of integral carrier: Facilitated
Diffusion
11. Match each term with the correct definition concerning water solutions in cells.
Osmosis=
Isotonic=
Hypertonic=
Hypotonic=: Osmosis=The diffusion of water
Isotonic=Refers to an equal amount of solute on either side of a membrane Hypertonic= The
solution contains more solute particles than the cell and has a lower water concentration.
Hypotonic=Solute particles outside of a cell are of lesser concentration than inside of the cell.
12. Are the following statements true or false concerning the sodium-potassi- um pump in
cell membranes?
It requires ac!ve transport.: True
13. Are the following statements true or false concerning the sodium-potassi- um pump in
cell membranes?
Ions, because of their polar nature, do not require carrier proteins to cross the membrane.: Fal
14. Are the following statements true or false concerning the sodium-potas- sium pump in
cell membranes?Sodium ions move actively inside of the cell after they have diffused
outward.: False
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