All Questions
0
votes
1answer
7 views
Difference between going against and going down a concentration gradient
The difference between facilitated diffusion and active transport is that facilitated distribution occurs down a concentration gradient and active transport occurs against a concentration gradient. I ...
2
votes
1answer
14 views
Could all mammalian receptors be described as allosteric?
Allosteric regulation in enzymes is where a molecule binds at a site other than the active site and thus changes the tertiary structure of the active site, hence altering the binding of substrate and ...
1
vote
2answers
18 views
Problems interpreting gram stain slide
My main question is this: when you interpret gram stain results, does the majority color determine if its pos or neg?
We've been given unknowns and now have to determine what the organism is. I'm ...
1
vote
2answers
25 views
Performing PCR on samples whose DNA concentration is nul
Is it vain to perform a PCR on samples whose DNA concentration was measured as nul by a NanoDrop?
3
votes
0answers
15 views
Origin of the biochemical term, Pi (inorganic phosphate)
I would like to know when the term Pi (inorganic phosphate) was introduced in the representation of biochemical reactions, how it was originally defined, and the justification given then for using it ...
0
votes
0answers
8 views
Do the rate of taking sugar relates to having diabetics
I have been thinking this; if the rate at which will consume our sugar determine the risk of having diabetics, as you all know diabetics occur due to presence of too much glucose in the blood; ...
-1
votes
0answers
13 views
What if inside the process of photosynthesis, the oxygen did not come from the splitting of water, but from 6CO2
What if inside the process of photosynthesis, the oxygen did not come from the splitting of water, but from 6CO2. What would happen to the photosynthesis? Would it not work anymore?
0
votes
0answers
23 views
Question about DNA hybridization?
After we separate the two dna strands , what makes one of the two strands combine with the labelled mRNA strand instead of the old complementary strand ?
1
vote
0answers
8 views
How to properly normalize micro array reference desgin data?
Background
I'm working on a dataset with micro array reference design data. For the people who are not familiar with this concept I hope this figure will clarify this:
Dataset
I used the dataset ...
0
votes
0answers
23 views
Does Methanol cause similar intoxication as Ethanol?
Take two average healthy adult males weighing 80 kg. Neither has, ahem, developed their alcohol tolerance to any significant degree.
One imbibes 1 shot, 40 ml of 40% Methanol, and another 40 ml of 40%...
1
vote
1answer
15 views
Does plasmolysis kill plant cells?
I know when a plant cell becomes fully plasmolysed that the protoplast shrinks away and eventually is no longer joined to the cell wall.
Is this irrevocable damage? Can the cells survive it and ...
1
vote
1answer
27 views
Why does NaCl react differently with a boiled potato and with a raw one
Well my question is based on this question down below.
For those who don't speak german:
You have two potato slices one of them is boiled the other one is just raw.
Now you scatter some salt over ...
3
votes
0answers
23 views
If a dead animal is electrified, will it decay?
I was walking past some power lines today, and a flying fox (like a small furry bat, for those who don't know Australian fauna) had grabbed onto two adjacent power lines, completing a circuit, and as ...
3
votes
0answers
19 views
Online phylogenetic tree of human lineages
I am looking for a source of information about the diversity of human lineages and their relationships.
With a quick google search it is easy to find this type of tree
A perfect online resource ...
-1
votes
0answers
8 views
What is the general effect of mutation on promoter region and different effect in the proximal and distal promoter region?
Would like to know the general effect on promoter sequences of gene as the idea of mutation on promoter is quite general; would also like to know what is the different effect if the location of ...
