Question

define cell growth
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Answer 1

Answer:

Cell growth refers to an increase in the total mass of a cell, including both cytoplasmic, nuclear and organelle volume

Answer 2

Answer:

Cell growth is the process by which cells accumulate mass and increase in physical size. On average, animal cells are ≈10 to 20 μm in diameter with a wide range of sizes, spanning from tiny red blood cells (≈5 μm in diameter) to motor neurons, which can grow 100's of micrometers in length (1). Water accounts for ≈70% of the weight of a cell and macromolecules, such as nucleic acids, proteins, polysaccharides, and lipids constitute most of the rest (≈25%; trace amounts of ions and small molecules make up the difference). The largest contribution to animal cellular dry mass is from proteins, which makes up about 18% of the total cell weight on average. There are many physical, chemical, and biologic factors that affect final cell size. However, it is the biologic factors, in particular intracellular signaling networks that control macromolecule synthesis, that are immediately relevant to cancer. As discussed in the following sections, deregulation of the cellular circuitry controlling biomass accumulation is associated with a wide spectrum of human cancers.

Explanation: