Made In China Talk  

Go Back   Made In China Talk > International Business Talk > Export > Food & Beverage
Directory Register FAQ Members List Calendar Mark Forums Read 中文


Help Please Biology Question?


Reply
 
Thread Tools Display Modes
  #1  
Old 07-01-2009, 08:47 AM
Englo Englo is offline
Senior Member
 
Join Date: Jun 2008
Posts: 2,003
Feedback: (0)
Default Help Please Biology Question?

How does the DNA in a eukaryotic cell differ from the DNA in a prokaryotic cell? The DNA of a eukaryotic cell contains different bases than the DNA of a prokaryotic cell. The DNA of a eukaryotic cell is enclosed in a nucleus, and the DNA of a prokaryotic cell is not. The DNA of a eukaryotic cell is single-stranded, and the DNA of a prokaryotic cell is double stranded. The DNA of a eukaryotic cell forms a loop, and the DNA of a prokaryotic cell forms multiple rods. --------------------------------------------------------------------------------2. A scientist uses an electron microscope to observe a prokaryotic cell. Which structure does she most likely see? cell wall chloroplast nucleus rough ER --------------------------------------------------------------------------------3. One major function of the pancreas is to produce enzymes that help break down food molecules in the small intestine. Which organelle would you expect to be more abundant in pancreas cells than in other body cells? chloroplasts mitochondria rough ER smooth ER Which statement best explains why the cell represented in the diagram can produce sugars? It has mitochondria. It has a cell wall. It has chloroplasts. It has a nucleus. --------------------------------------------------------------------------------6. A particular cell contains a greater number of free ribosomes than ribosomes attached to rough ER. What can you conclude about the cell? It produces many proteins but cannot package them. It produces fewer proteins for export than for use in the cell. It produces many proteins but cannot modify the amino acid sequences. It can produce proteins but cannot move the proteins to the cell membrane. --------------------------------------------------------------------------------7. Where would you expect to find a cell that had a very large number of mitochondria? blood muscles nerves skin --------------------------------------------------------------------------------8. A lab technician places a euglena into a sample of seawater. What will most likely happen to the euglena? It will swell because of passive transport of water. It will lose water through osmosis and shrivel. It will use energy to move water into the cell. It will use active transport to take in extra salt. --------------------------------------------------------------------------------
Reply With Quote


  #2  
Old 07-01-2009, 08:47 AM
India India is offline
Senior Member
 
Join Date: May 2008
Posts: 2,080
Feedback: (0)
Default Help Please Biology Question?

1. The DNA of a eukaryotic cell is enclosed in a nucleus, and the DNA of a prokaryotic cell is not. 2. cell wall 3. rough ER 4. it has chloroplasts.6. It produces fewer proteins for export than for use in the cell. 7. muscles or nerves, sorry not sure about that one. id probably go with muscles8. It will lose water through osmosis and shrivel.
Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


| UK Articles | find a job in china | China Video Chat | Business | Free Articles | Luxury Homes in the US | Bluehost coupons | Bluehost coupons | Hostmonster coupons | Hostmonster coupons | Online Marketing Tips - Earn Cash Money

All times are GMT +9. The time now is 12:37 PM.


All rights reserved. Copyright © 2007 Made In China Talk