Answer: Compound . Chemical reactions can divide elements into simpler substances, but they cannot separate elements into simpler substances. Physical or chemical characteristics of substances can be categorised.
Compounds and elements can be created from pure substances. A chemical reaction is required to break down pure substances (elements and compounds) into their component atoms or elements. This is known as the chemical separation process. Physical separation of pure substances is impossible.
Explanation:
What makes something pure substance?
One element or a small number of related compounds make up pure substances. Mixtures are assemblages of many components. Mixtures of two or more substances (or elements) that cannot be visually distinguished from one another are referred to as homogeneous mixtures.
What sort of compound would that be?
A substance made up of two or more components is called a compound. Table salt, water, and carbon dioxide are a few examples of compounds
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Covalent compounds share with each other, whilst Ionic compounds take from each other.
Covalent compounds are composed of 2 or more NONMETALS.
So, it would be CO, since the rest of the compounds contain metals in them.
Answer:
The cell wall provides support for plant cells, the cell membrane allows materials to enter and
exit the cell.
Indirectly, by converting glucose to acetyl CoA.
Explanation:
When excess carbohydrate is consumed it gets converted to glycogen or fatty acids.
The glucose stores fatty acids by the process of lipogenesis. In this process the end product of glycoloysis ie pyruvate is converted to acetyl CoA. This triglyceride stores the fat in adipose tissues.
In the time of need glucose is brought to use by glycogenolysis and gluconeogenesis.
So, the excess fat gets converted and stored as long chain fatty acid and gets incorporated in phospholipids, cholestrol and triacyglycerol.
The neuron becomes more positive. This can lead to the neuron reaching threshold and then initiate an action potential. When the sodium channels are NOT functional, the sodium can not enter and depolarize it. Therefore the threshold can not be met and action potential will not occur. If the sodium channels are inactive in a nociceptive neuron (carries information about pain), then it will prevent you from feeling pain.