Cell Biology

Why do Coxiella show variable Gram stain results?

Why do Coxiella show variable Gram stain results?

i am researching this question for my homework and am stumped.  I'm pretty sure it's gram negative but i don't know why it would show both?

crsmicro   670   1 Reply

bolbol

When the ionic permeability of a cell membrane is increased?

When the ionic permeability of a cell membrane is increased?

When the ionic permeability of a cell membrane is increased, what factors determine the amount and direction of the resulting ion flow?

An increase in a membrane 's ionic permeability usually causes a shift in membrane potential. Give

BioSubi   1426   1 Reply

bolbol

A healthcare provider notes that tapping the patients facial nerve leads to lip twitching. What ...

A healthcare provider notes that tapping the patients facial nerve leads to lip twitching. What ...

[html]A healthcare provider notes that tapping the patient’s facial nerve leads to lip twitching. What electrolyte value is correlated with this finding?


▸ K+: 2.8 mEq/L

▸ K+: 5.4 mEq/L

▸ Ca++: 8.2 mg/dL

hlturner75   466   3 Replies

Anonymous

Why are physiology and anatomy frequently studied together?

Why are physiology and anatomy frequently studied together?

Why are physiology and anatomy frequently studied together?

mel2017   448   1 Reply

bolbol

Parameters for quantitative analysis

Parameters for quantitative analysis

Question: Discuss the parameters for quantitative analysis, e.g. bundle density, diameter of vascular bundles etc and for qualitative analysis of vascular bundles between monocot and dicot.

Anonymous   471   8 Replies

duddy

Stain for monocot and dicot stem

Stain for monocot and dicot stem

What stain are usually used to view the vascular bundle of a monocot (e.g. corn) and dicot stem (e.g. sunflower)? Thanks.

Anonymous   255   1 Reply

habiba

what is an important macromolecule that enters a cell via receptor- mediated endocytosis?

what is an important macromolecule that enters a cell via receptor- mediated endocytosis?

what is an important macromolecule that enters a cell via receptor- mediated endocytosis?

ASKFE   699   1 Reply

bolbol

what is the difference between the two processes known as phagocytosis and pinocytosis?

what is the difference between the two processes known as phagocytosis and pinocytosis?

what is the difference between the two processes known as phagocytosis and pinocytosis?

smokeyd   632   1 Reply

bolbol

Data analysis ONT sequencing

Data analysis ONT sequencing

Hello,

For my thesis, i have to do data analysis of my experiments. one of my experiments is the comparison of the r9.4.1 flow cell and the R10.4.1. flow cell. my mentor cannot help me for now which is why i am looking for help here. I hav

Anonymous   197   1 Reply

bio_man

Why flagella is important in our cells

Why flagella is important in our cells

why flagella is important in our cells

mubashiriqbal97   198   1 Reply

billybob888

What challenges does paramecium face in a specific environment?

What challenges does paramecium face in a specific environment?

A paramecium is a single celled organism that lives in freshwater. If the cytoplasm of the paramecium is composed mainly of saltwater, what challenges does the paramecium face in this environment?

Anonymous   232   1 Reply

Anonymous

Stem cell research. How were stem cells found?

Stem cell research. How were stem cells found?

Was stem cell research ever really controversial? Weren't stem cells gathered from afterbirths before Yamanaka factors allowed creating them from mature cells?

CarbonRobot   253   3 Replies

Anonymous

Do cells behave less like a team over time?

Do cells behave less like a team over time?

Do our human cells show less behavior indicating they are working towards organism goals versus cellular goals as we age? I know cancer completely sees itself as a separate being, but I am referring to aged cells that are still considered functional.

CarbonRobot   283   6 Replies

Anonymous

Health of cells that don't proliferate?

Health of cells that don't proliferate?

How is tissue that can't proliferate kept healthy? If those cells die is it pretty much like permanent teeth falling out?

CarbonRobot   228   5 Replies

bio_man

Scar tissue normal?

Scar tissue normal?

Are there parts of the body that grow scar tissue by default? Not like because of an injury, but because that is simply the tissue type it uses?

CarbonRobot   285   4 Replies

CarbonRobot

What makes the hollow part in a blastula?

What makes the hollow part in a blastula?

Hey guys.
I am trying to do a bit of a Google search around as to what actually forms the hollow part of a blastula.
My understanding is a morula is not hollow, and then something happens where it is hollow.
I feel like I've al

Naithi O_Rea   275   3 Replies

bio_man

Home work questions

Home work questions

are these answers right?

Anonymous   242   1 Reply

Anonymous

Which of the following are true about bacterial DNA replication compared to DNA replication in ...

Which of the following are true about bacterial DNA replication compared to DNA replication in ...

Is this correct?

Question 2
1 pts
Which of the following are true about bacterial DNA replication compared to
DNA replication in humans (eukaryotes)
(select all that apply)
D DNA sequence where replication ini

Anonymous   302   1 Reply

Anonymous

How many types of tissue?

How many types of tissue?

How many types of human tissue are there? I know 4 general types, but I assume there must be 1000s at the more specific levels?

CarbonRobot   350   8 Replies

bio_man

Bacteroides and Escherichia are both gram-negative rods found in the large intes

Bacteroides and Escherichia are both gram-negative rods found in the large intes

Bacteroides and Escherichia are both gram-negative rods found in the large intestine. Why are they in different phyla?

barry   5135   1 Reply

bolbol

Provide an explanation for the complex life cycles exhibited by parasitic helmin

Provide an explanation for the complex life cycles exhibited by parasitic helmin

Provide an explanation for the complex life cycles exhibited by parasitic helminths. Cite specific examples in your discussion.

barry   3266   1 Reply

bolbol

Creating Gamete cells in lab.

Creating Gamete cells in lab.

I think I read maybe a decade ago that they were trying to see if it might be possible to turn other cell types into gamete cells to help people overcome fertility issues. Has any progress been made?

CarbonRobot   295   3 Replies

bio_man

Cellular energy and performance?

Cellular energy and performance?

Is there any correlation between a cell's energy usage and its best performance? Perhaps it will accomplish cell death better with higher energy levels versus sticking around when sickly? Otherwise live and do its job better with fewer compromis

CarbonRobot   232   N/A

CarbonRobot

Evolution is fastest when

Evolution is fastest when

I think the answer is a. Please can someone check this? thank you!!

twinkle star   363   6 Replies

twinkle star

Algae and plants

Algae and plants

for this question, my answer is a. Please can someone check if I am right? thanks!

twinkle star   268   2 Replies

twinkle star

what is the 5 step process to identify the path a secretory protein follows form synthesis to secretion?

what is the 5 step process to identify the path a secretory protein follows form synthesis to secretion?

the choices are....
1. endoplasmic reticulum
2. lysosome
3.plasma membrane
4. trans golgi cisternae
5. cis golgi cisternae
6. medial golgi cisternae
7.peroxisome

just use 5 of them.

mickabra   2615   1 Reply

bolbol

Which concentration of ammonium sulfate works best to separate phosphatase from other proteins?

Which concentration of ammonium sulfate works best to separate phosphatase from other proteins?

Which concentration of ammonium sulfate works best to separate phosphatase from other proteins?

nursinglife   661   1 Reply

bolbol

Cells that behave younger than they are?

Cells that behave younger than they are?

Just in general what is wrong with older cells behaving young again? I was talking to an epigenetics expert (I assume) about how Yamanaka factors may make cells behave young again and cause some regenerations to occur. I suppose overactive cells with

CarbonRobot   264   5 Replies

bio_man

Something about synthetic biology and if there's any advice

Something about synthetic biology and if there's any advice

Lactose intolerance has prevailed in China for a long history. It is generally believed that more than half of the people in China are troubled by this problem. Some studies even believe that 100% of Asians have some degree of lactose intolerance. Th

Lxikkyu   171   1 Reply

Anonymous

Shorten cell life deliberately?

Shorten cell life deliberately?

Is there a way to make cells more prone to programmed cell death after receiving DNA damage? Basically keeping the person's DNA more pure and free of errors for longer?

CarbonRobot   202   1 Reply

duddy

Action potential and neurotransmisor codification

Action potential and neurotransmisor codification

I have learnt that an action potential can be produced by the reception of a neurotransmisor. Is there a direct relationship between an action potential and the release of a concrete neurotransmisor? (for example "this level of voltage leads to

loluislo   242   3 Replies

bio_man

Are there consumer senolytics that are FDA approved?

Are there consumer senolytics that are FDA approved?

Are there consumer senolytics that are FDA approved? I am worried age research is moving too slow.

CarbonRobot   333   5 Replies

bio_man

Very rough estimate of the ATP synthase enzyme number in a typical mitochondrion

Very rough estimate of the ATP synthase enzyme number in a typical mitochondrion

Hi,

I realise there is no single answer for this due to the heterogenous nature of mitochondria. The only direct reference I've been able to find was from a researchgate question, which was answered by Barry John Bowman, University of

Dave6   271   4 Replies

Dave6

Types of cancer and typical treatments?

Types of cancer and typical treatments?

I was wondering what treatments are used depending on the type and stage of cancer? Is chemo therapy the go to for nearly everything? Or do they really push the treatments that don't cause further DNA damage first?

CarbonRobot   637   13 Replies

duddy

Is the electrical pulse in Somatic Cell Nuclear Transfer used to fuse the cells?

Is the electrical pulse in Somatic Cell Nuclear Transfer used to fuse the cells?

Or is it to initiate division?

tlipman   1419   2 Replies

Semantha Lorez

What is a cell?

What is a cell?

helpo me olease

zoegray1   330   3 Replies

Semantha Lorez

Cancer ever really cured?

Cancer ever really cured?

When a person has had cancer do they ever get cured of it, or do they always simply go into "remission?"

I learned recently that a now 48 year old man gets checked for skin cancer every month or so since they had skin cancer as a

CarbonRobot   233   1 Reply

Semantha Lorez

Are cells at lower cancer risk when specialized?

Are cells at lower cancer risk when specialized?

Do cells become more immune to cancer when they specialize or is the risk the same when they are still stem cells but the same age?

CarbonRobot   405   7 Replies

bio_man

Stem Cell therapy.

Stem Cell therapy.

How are stem cells created for stem cell therapies? Are they made from the particular DNA code of the particular patient that is to receive them and simply cloned many times, or can they be made generically?

CarbonRobot   420   9 Replies

bio_man

Let hot food cool down or bring a lunch bag?

Let hot food cool down or bring a lunch bag?

I'm planning on purchasing hot food to be eaten within 2 hrs. My main concern is microbes, but I'm also wondering about degradation, the latter about loss of flavor & texture. I have lunch bags that I could bring in case it's bette

DynV   381   7 Replies

bio_man