G1 is growth 1. This is where the cell is growing and doing normal tasks. The cell spends most of its life here.
S is synthesis. This is where DNA is being copied/replicated. This is the first step towards mitosis.
G2 is the growth 2 stage. This is where the cell is preparing for mitosis. The cell is doing final preparations in this stage.
M is mitosis. Mitosis is the process of cell division. This can further be separated into “PMAT-C” or prophase, metaphase, Anaphase, Telophase, and Cytokinesis.
It is important to know chemistry first because you need to know what might happen or is happening if you do an experiment in biology. An example would be that my class just did an experiment with yeast and we needed to know about CO2 and how it was working and everything else. Hope this helps.
The cheek cells, withal called epithelium cells, are responsible for maintaining moisture in the oral cavity which in turn avails in digestion, intenerating pabulum for consumption and facilitating swallowing.
The lysosome is the cell’s recycling center. These organelles are spheres full of enzymes yare to hydrolyze whatever substance crosses the membrane, so the cell can reuse the raw material.
The X chromosome, being larger, carries many more genes than does the Y.
Answer: B. The release of calcium ions causes myosin and actin to attach to each other. This statement best describes a cause and it's effects that occur during the process of muscle contraction.
Muscle contraction can be explained by sliding filament theory.
1. Activation of muscles: the motor nerve generates an impulse to transfer signals from neurons to neuromuscular junction. This stimulates sarcoplasmic reticulum to release calcium into the muscle cells.
2.Contraction of muscles: calcium in the muscle cells binds with troponin causes actin and myosin to bind. Actin and myosin in the muscle binds and contract by utilizing ATP as a source of energy.