An atom is the smallest known unit and it is present in all the matter. The space occupied by atom is divided into two components: the nucleus and orbitals. The nucleus is the center of the atom, and orbitals surround the nucleus.
Location of protons-
Protons are positively charged particles within atoms. Each atom has at least one proton. The number of protons determine the identity of an atom.Protons reside in the nucleus of the atom.
Location of Electron-
Electrons travel around the nucleus in the orbital. Electrons are negatively charged particles. In a neutral atom, the number of electrons and protons are same. Though they are much smaller than protons but have the same strength charge.
Location of Neutrons-
Neutrons are located with protons in the nucleus. They have no charge and have the same mass as protons. Not all atoms have neutrons, and the number of neutrons is not usually the same as protons or electrons.
Part B-
I agree with Jane's statement as an aluminium atom has a dense central nucleus surrounded by negatively charged electrons, The protons and neutrons are closely packed in the center an 13 electrons are surrounding this center.
Glucose is different from glycogen as Glucose is used immediately for energy in the cell while glycogen is stored in the liver for later use as energy. Thus, the correct option is A.
<h3>What is Glycogen?</h3>
Glycogen may be defined as the reserved form of glucose that is constructed up of many interconnected glucose molecules.
When the cell needs immediate energy to accomplish metabolism, they directly use glucose for it, but while energy is not needed by the cell, then glucose is stored in the liver and muscles in the form of glycogen.
Therefore, Glucose is different from glycogen as Glucose is used immediately for energy in the cell while glycogen is stored in the liver for later use as energy. Thus, the correct option is A.
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a compound of the sterol type found in most body tissues. Cholesterol and its derivatives are important constituents of cell membranes and precursors of other steroid compounds, but a high proportion in the blood of low-density lipoprotein (which transports cholesterol to the tissues) is associated with an increased risk of coronary heart disease.
<span>Correct answer:
<span>Diffusion is the movement of particles from a high to low concentration, while osmosis is the movement of water from a high particle concentration to a low particle concentration.
</span></span><span>This movement of molecules occurs due to a thermal motion. Diffusion normally occurs between two compartments having difference in concentration. In case of fluid it moves from the region of higher concentration to the region of concentration until a balance is reached. The process of diffusion is very important for the humans as well. The oxygen that humans breathe in gets diffused with the blood.</span><span><span>
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