Example collocations logo

Chemical in sentence

890 examples of Chemical in a sentence

It is a simple chemical model of a living cell, and if you consider for example a cell in your body may have on the order of millions of different types of molecules that need to come together, play together in a complex network to produce something that we call alive.
In this protocell model, it's just an oil droplet, but a chemical metabolism inside that allows this protocell to use energy to do something, to actually become dynamic, as we'll see here.
Oil droplet forms through self-assembly, has a chemical metabolism inside so it can use energy, and it uses that energy to move itself around in its environment.
It is moving around, exploring its environment, and remodeling its environment, as you see, by these chemical waves that are forming by the protocell.
Rather, they'd be a real complex mixture of all kinds of stuff, because uncontrolled chemical reactions produce a diverse mixture of organic compounds.
You turn up the heat, you start making or breaking chemical bonds in the sugar, forming a brownish caramel, right?
If you let that go unregulated, you'll continue to make and break chemical bonds, forming an even more diverse mixture of molecules that then forms this kind of black tarry stuff in your pan, right, that's difficult to wash out.
And thirdly, we need to be able to make and break chemical bonds.
So by making these chemical, artificial life experiments, we hope not only to understand something fundamental about the origin of life and the existence of life on this planet, but also what possible life there could be out there in the universe.
Now, what you do is, you get inside the microbe, you change its metabolic pathways, and you end up with a living chemical factory.
This probe actually can't use chemical rockets.
When a chemical signal washes up on one side, it triggers the cell to expand its shape on that side, because the cell is constantly touching and tugging at the environment.
His basketball hands learned the tiny clicks and slides of lens into frame, film into camera, chemical into plastic bin.
Once salt deposition and chemical deposition has had its effects, that answer is more like $12,000 of cost.
You see, if you have, over time, reacted negatively to past events and people, neural pathways are laid down by chemical and electrical signals that are sent through the brain.
In fact, it means that if a patient comes in and they're resistant to this drug, then if we give them a chemical to block this protein, then we can treat them again with the same drug.
For example, volatile organic compounds are chemical pollutants that are found in our schools, homes and workplaces.
These chemical pollutants are currently not a criteria air pollutant, as defined by the U.S. Clean Air Act.
Which is surprising to me, because these chemical pollutants, through my research, I show that they had a very large negative impact on the lung health of asthmatic patients and thus should be regulated.
It broadcasts through chemical signals, telling the rest of the cell when it's ready, when it feels that everything is aligned and ready to go for the separation of the chromosomes.
Right now, if you want to test water in the field, you need a trained technician, expensive equipment like this, and you have to wait about a day for chemical reactions to take place and provide results.
And instead of waiting for chemical reactions to take place, it uses light.
That means there's no waiting for chemical reactions to take place, no need to use reagents that can run out and no need to be an expert to get actionable information.
Most people use chemical fertilizers.
We do not use chemical fertilizer.
Now that's sort of just a very simple chemical form of life, but when things got interesting was when these drops learned a trick about abstraction.
They learned to record the information that was the recipe of the cell onto a particular kind of chemical called DNA.
Sorel cement was originally invented in 1867, and it's the beautiful chemical marriage of magnesium oxide and local sand, which they can now use to print solid stone walls.
Now it's very easy actually to get a chemical compound from products into the human body through the skin.
In fact, my involvement in the whole pesticide issue was sort of a surprise as well when I was approached by the largest chemical company in the world and they asked me if I would evaluate how atrazine affected amphibians, or my frogs.
BackNext