Question

The stained Gram-positive bacteria appear _____ under the microscope.

blue
pink
green
yellow

Answer 1

@xo_kansasprincess_xo Read my posts here: http://openstudy.com/study#/updates/54c46bcde4b0905d1dc4f098

Answer 2

That didn't help lol

Answer 3

Oh, crap. I'm sorry, I never discussed color. Well, if the stain doesn't wash out, it is gram +, if the first stain washes out it is gram - and we counter stain it.

The first stain is crystal violet (blue or purple color) and the second stain is safarin red (red color.

Answer 4

@xo_kansasprincess_xo Does that help?

Answer 5

Blue?

Answer 6

Yep

Answer 7

Thank you! Will you help me with some more questions, please?

Answer 8

Sure, but I'm not sure how much longer I'll be on here.

Answer 9

The Gram-positive bacteria have a (thicker or thinner) cell wall than the Gram-negative bacteria.

Answer 10

As I said in my posts I linked to, Gram+ bacteria are unable to be destained, so would you expect it to be harder to remove a stain from something with a thicker wall or a thinner wall?

Answer 11

Thicker

Answer 12

Yep.

Answer 13

So it's thicker

Answer 14

Yes.

Answer 15

The conversion of nitrogen gas to compounds useful to crops is called nitrogen compounding.

True
False

Answer 16

Hmm. Well, I cannot think of a way to hep besides giving you the answer. It is false, this is called nitrogen fixation. Only specific bacteria can do this. The make nodules in plants, like bean plants and are red in color.

Answer 17

Plants that encourage the proliferation of nitrogen-fixing bacteria are _____.

molds
yeasts
yogurts
legumes

Answer 18

Beans are legumes.

Answer 19

And, molds and yeast are Fungi, and I'm pretty sure you know yogurt is not a plant.

Answer 20

Yes..lol

Answer 21

Several types of _____ are used to produce yogurt.

Yeasts
Protozoa
Bacteria
Molds

Answer 22

Have you heard of lactobacillus?

Answer 23

No

Answer 24

Hmm. Another hard one to not give the answer. Well, it is bacteria.

Answer 25

As means of locomotion, bacteria possess _____.

cilia
flagella
pseudopodia

Answer 26

Pseudopodia are cell projectoins made with a cellular structure that bacteria lack.
Only Eukaryotes have cilia.

Answer 27

So it's flagella?

Answer 28

Yes.

Answer 29

Organisms that grow in the absence of free oxygen are known as _____.

aerobic
anaerobic

Answer 30

Wait, never mind. Lol I know this one

Answer 31

Want to confirm?

Answer 32

Anaerobic

Answer 33

yes.

Answer 34

The cyanobacteria reproduce by simple cell division known as _____.

fission
fusion
germination

Answer 35

Germination is the process of a seedling or sporeling starts to grow. Fusion, do you know what "fuse" means? We may use glue to "fuse" things together.

Process of elimination..

Answer 36

Bacteria are important in sewage disposal because they _____.

neutralize sewage
form vacuoles in sewage
digest sewage
form membranes around toxins in sewage

Answer 37

Digest. Again not sure how to help without giving the answer.

Answer 38

Archaea and eubacteria were found to be most different because _____.

some archaea are anaerobic
archaean biochemistry is more similar to that of eukaryotes than that of eubacteria
archaea don't have a true nucleus
almost all archaea reproduce asexually

Answer 39

Archaea is more closely related to Eukarya than Eubacteria.

Answer 40

Some archaea contribute to pollution and global warming with their release of _____.

sulfur
carbon
nitrogen
methane

Answer 41

Methane.

Answer 42

I think.

Answer 43

You would most likely find _____ in a volcano.

Archaea or Eubacteria

Answer 44

Archaea are frequently called "extremophiles" because the are found in conditions of extremes, like extremely high temps, very low pH environments, etc.

Answer 45

Select all that apply.

You can identify or classify archaea and eubacteria by _____.

habitat
means of existence
genetic make-up
shape and arrangement of cells
how they move

Answer 46

Everything.

Answer 47

Select all that apply.

Pathogens _____.

are disease-causing microorganisms
cannot be treated
can be fatal
are transmitted by mites and ticks

Answer 48

well, everything can be treated. the other's look good. Except not all are transmitted by mites and ticks.

Answer 49

Rocky Mountain spotted fever is caused by _____.

bacteria
a virus
rickettsia

Answer 50

Rickettsia, right?

Answer 51

Yes, and it is a bacteria.

Answer 52

I can only select one

Answer 53

Then go with the most specific.

Answer 54

Viruses can only replicate themselves within cells, not outside of a cell.

True
False

Answer 55

Go with true.

Answer 56

I've got to go. Good luck on any other questions!

Answer 57

Thank you for your help!