Bio Quiz Week 3

Only available on StudyMode
  • Download(s) : 133
  • Published : June 14, 2013
Open Document


Text Preview
Week 3 Quiz |

Numeric Grade:  20 / 20  pts |
Letter Grade:  | |
 |  |  |
|
Comments: Yeah!! |
|
|

-------------------------------------------------
Top of Form

Grading Summary
These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below. | Date Taken: | 9/5/2012| Time Spent:| 19 min , 19 secs |

Points Received:| 30 / 30  (100%) |
|
Question Type:| # Of Questions:| # Correct:|
Multiple Choice| 21| 21|
Essay| 3| N/A|
|
|

Grade Details - All Questions |

 1.| Question :| Provides structure and support in plant cells:|
|
 | Student Answer:| | a nuclear envelope. |
 | | | a cell membrane. |
 | | | cell wall. |
 | | | cytoskeleton. |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 2.| Question :| The cell junctions respectively that exclude the passage of water between cells, maintain tissue form and strength, and allow the exchange of small molecules between cells are:|

|
 | Student Answer:| | gap junctions, desmosomes, tight junctions |  | | | desmosomes, tight junctions, gap junctions |
 | | | tight junctions, gap junctions, tight junctions |  | | | gap junctions, tight junctions, desmosomes |
 | | | tight junctions, desmosomes, gap junctions |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 3.| Question :| Requires energy to move molecules|
|
 | Student Answer:| | diffusion. |
 | | | active transport. |
 | | | passive transport. |
 | | | osmosis. |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 4.| Question :| The phospholipid molecules of most membranes have|
|
 | Student Answer:| | a hydrophobic head and a hydrophilic tail. |  | | | a hydrophobic head and a hydrophobic tail. |
 | | | a hydrophobic head and two hydrophobic tails. |  | | | a hydrophilic head and two hydrophobic tails. |  | | | none of these. |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 5.| Question :| Which type of junctions prevent water leakage between cells?|
|
 | Student Answer:| | gap juctions |
 | | | plasmodamata |
 | | | tight junctions |
 | | | adhering junctions |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 6.| Question :| Movement of particles from higher to lower concentration is|
|
 | Student Answer:| | active transport. |
 | | | diffusion. |
 | | | osmosis. |
 | | | passive transport. |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 7.| Question :| The ____ portion of the cell membrane functions as a barrier while the ____ portion determines specific functions, including pumps, receptors, adhesion, etc.|
|
 | Student Answer:| | carbohydrate, nucleic acid |
 | | | lipid, protein |
 | | | lipid, carbohydrate |
 | | | nucleic acid, lipid |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 8.| Question :| Unlike animal cells, plant cells have|
|
 | Student Answer:| | cell membranes. |
 | | | mitochondria. |
 | | | cell walls. |
 | | | chromosomes. |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 9.| Question :| The organelle that is the site of protein synthesis is the|
|
 | Student Answer:| | nucleus. |
 | | | ER. |
 | | | ribosome. |
 | | | mRNA |
 | | | nucleolus. |
|
|
 | Points Received:| 1 of 1 |
 | Comments:| |
|
|
 10.| Question :| The first person to observe and describe microscopic bacteria and protozoa was|
|
 | Student Answer:| | Robert Hooke. |
 | | | Rudolf Virchow. |
 | | | Anton...