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The subatomic particles located inside of the nucleus of an atom consist of protons and neutrons.
<span>The cells that most directly attack and lyse cells infected by the virus are T cells. These cells mature in the thymus. T cells are an essential part of a properly functioning immune system. Patients with reduced T cells may end up being in more danger from the flu than those with a healthy immune system.</span>
Answer:
Quarks pair with other quarks to form protons and neutrons.
Explanation:
Every atom contains a nucleus and within the nucleus, protons and neutrons are present. A quark is the fundamental particle of a matter. Quarks are joined together to form hadrons. Protons and neutrons in the nucleus of an atom are hadrons. Thus, quarks are the smallest particle of a matter as believed by most of the physicists.
Answer:
cell membrane
mitochondria
lysosomes
ribosomes
Explanation:
Cell membrane is the boundary of animal cell which is responsible for the intake of nutrients from outside environment of the cell. Cell membrane is a semipermeable membrane which take nutrient through a process of diffusion and active transport. Mitochondria is also called power house of the cell in which glucose molecule is broken down and energy is released. Lysosomes is an important organelle of the cell which is responsible for the collecting and removal of waste material from the cell through cell membrane. Ribosomes helps in the production of proteins and enzymes needed by the cell for different activities.
