Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
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

7th grade science

Ch 7 bacteria and viruses

TermDefinition
bacteria microscopic prokaryotes
anaerobic bacteria that do NOT need oxygen to survive
aerobic bacteria that need oxygen to survive
flagella long whip-like structure found on many bacteria
fission cell division that forms two genetically identical cells
conjugation two bacteria of the same species attach to each other and combine their genetic material
endospore forms when a bacterium builds a thick internal wall around its chromosome and part of the cytoplasm
decomposition the breaking down of dead organisms and organic waste
nitrogen fixation the conversion of atmospheric nitrogen into nitrogen compounds that are usable by living things
bioremediation the use of organisms, such as bacteria, to clean up the environmental pollution
pathogen an agent that causes disease
antibiotics medicines that stop the growth and reproduction of bacteria
pasteurization the process of heating food to a temperature that kills most harmful bacteria
virus a strand of DNA or RNA surrounded by a layer of protein that can infect and replicate in a host cell
antibody a protein that can attach to a pathogen and make it useless
vaccine a mixture containing material rom one or more deactivated pathogens, such as viruses
Created by: HOMSSeminar
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards