Answer:
Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
Atom: has equal number of +ve charge (protons) and -ve charge electrons and hence atom has charge.
Neutrons (having no charge) and protons are present in nucleus. Electrons keep revolving around the nucleus in different shells.
Answer:
Moving against the concentration gradient, or in simpler terms, moving from a low-concentration area to a high-concentration area.
Explanation:
This action uses energy, as according to entropy, the substance will move from a higher concentration to a lower concentration, and cells have to put extra energy to pump the molecules / substance up the concentration gradient.
It is mostly used to trigger chemical responses in cells, like in neuron synapses.
Hope this helped!
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Answer:</h2>
The <u>structure and function</u> are affected by the amino acids order in a protein.
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Explanation:</h2>
The succession of a protein is controlled by the DNA of the genes that encode the protein. An adjustment in the gene's DNA arrangement may prompt an adjustment in the amino acid grouping of the protein. In any event, changing only one amino acid in a protein's grouping can influence the protein's general structure and capacity.
For example, a solitary amino acid change is related to sickle cell frailty, an acquired infection that influences red platelets. In sickle cell frailty, one of the polypeptide ties makes hemoglobin, the protein that conveys oxygen in the blood has a slight succession change. The glutamic acid that is regularly the 6th amino acid of the hemoglobin β chain is supplanted by a valine.
