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Biology

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Profiles of which component of the membrane may be used to identify certain kinds of pathogens?

a)proteins
b)polysaccharides
c)leaflets
d)phospholipids
e)fatty acids


Barely ____________% of all microbial species can be cultured in the laboratory.

a10
b)25
c)1
d)50
e)0.1


Which of the following is a dormant form of bacteria resistant to desiccation and other natural stresses?

a)ribosome
b)magnetosome
c)endospore
d)mitochondria
e)chloroplast


Which of the following is true of all biofilms?

a)The EPS may be protein or polysaccharide.
b)They only contain a single species.
c)The EPS is secreted by the bacteria.
d)Cells in the biofilm are dormant until the bacteria leave the biofilm.
e)It is a continuous monolayer surface deposit.


The eukaryotic predators of the microscopic world are

a)viruses.
b)algae.
c)bacteria.
d)protists.
e)cyanobacteria.

I can't figure out my extra credit problems. I think for #1 is a, #2 is either c or e, #4 is a, and #5 is a. I am not sure those are right or what #3 is. Can I get some help please. Thank You

  • Biology -

    You've already posted these questions three times in an hour. Please be patient. Someone may help you -- but please note that Jiskha doesn't have a biology teacher at this time. Do not post these questions again this evening.

    You might try this site.

    http://biology-forums.com/index.php

  • Biology -

    1.a
    2.e
    3.c
    4.dont know
    5.a

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