Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Important words from Examkrackers MCAT Biology book, lecture 3

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
What is a capsid?   A protein coat around a virus  
🗑
What is the envelope of an animal virus made of?   It is lipid-rich and borrowed from the membrane of their host cell or synthesized in the host cell cytoplasm  
🗑
How do viruses differ from living oranisms?   1. Require host's reproductive machinary to reproduce 2. Don't metabolize organic nutrients 3. In active form they are not separated from their external environment 4. Only posses DNA or RNA (not both)  
🗑
What is a lytic infection?   Occurs when a virus uses the cell's reproductive machinary to reproduce  
🗑
What is the latent period?   The time from infection to lysis  
🗑
What is a virulent virus?   A virus that follows that lytic cycle  
🗑
What is a lyogenic infection?   Occurs when viral DNA is incorporated into host genome or reverse transcriptase is used on RNA virus  
🗑
What is a temperate virus?   A virus that follows the lysogenic cycle  
🗑
What is a provirus?   A temperate virus that is lying dormant in a bacterium  
🗑
What is a plus=strand RNA virus?   A virus that has DNA that can be directly translated into proteins  
🗑
What is a retrovirus?   A virus that carries reverse transcriptase to create DNA from RNA  
🗑
What is a minus-strand RNA virus?   A virus that contains RNA that is complement to mRNA and must be transcribed to plus-RNA to be translated  
🗑
What is a vaccine?   An injection of antibodies or nonpathogenic virus  
🗑
What are autotrophs?   Organisms that get their carbon from carbon dioxide  
🗑
What are heterotrophs?   Organisms that get their carbon from organic compounds  
🗑
What are phototrophs?   Organisms that get their energy from light  
🗑
What are chemotrophs?   Organisms that get their energy from chemicals/oxidation  
🗑
What are lithotrophs?   Organisms that get their electrons from inorganic matter  
🗑
What are organotrophs?   Organisms that get their electrons from organic matter  
🗑
What is nitrogen fixation?   The process that converts nitrogen in ammonia  
🗑
What is nitrification?   The process that converts ammonia into nitrates  
🗑
What are cocci shaped bacteria?   Round-shaped bacteria  
🗑
What are bacilli shaped bacteria?   Rod shaped bacteria  
🗑
What affects a compounds permeability?   Size and polarity  
🗑
What does hypertonic mean?   Describes cytosol containing more particles than it's surrounding solution  
🗑
What does hypotonic mean?   Describes cytosol containing lessparticles than it's surrounding solution  
🗑
What is a peptidoglycan?   A series of disaccharide polymer chains with amino acids  
🗑
What is a gram-positive bacteria?   A bacteria whose thick cell wall prevents grain stain from leaking out  
🗑
What is binary fission?   A type of asexual reproduction that involves a process similar to replication in eukaryotes  
🗑
What is conjugation?   A type of genetic recombination that requires a bacterium to have a plasmid with a gene that codes for sex pilus  
🗑


   

Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
 
To hide a column, click on the column name.
 
To hide the entire table, click on the "Hide All" button.
 
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
 
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.

 
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: 1224000032
Popular MCAT sets