One reason is that they can use the computer for modeling for what they’re studying (ex: bacterial division)
"<u>cell membrane </u>- the thin layer of protein and fat that surrounds the cell. The cell membrane is semipermeable, allowing some substances to pass into the cell and blocking others.
<u>centrosome</u> - (also called the "microtubule organizing center") a small body located near the nucleus - it has a dense center and radiating tubules. The centrosomes is where microtubules are made. During cell division (mitosis), the centrosome divides and the two parts move to opposite sides of the dividing cell. The centriole is the dense center of the centrosome.
<u>cytoplasm</u> - the jellylike material outside the cell nucleus in which the organelles are located.
<u>Golgi body</u> - (also called the Golgi apparatus or golgi complex) a flattened, layered, sac-like organelle that looks like a stack of pancakes and is located near the nucleus. It produces the membranes that surround the lysosomes. The Golgi body packages proteins and carbohydrates into membrane-bound vesicles for "export" from the cell.
<u>lysosome</u> - (also called cell vesicles) round organelles surrounded by a membrane and containing digestive enzymes. This is where the digestion of cell nutrients takes place.
<u>mitochondrion</u> - spherical to rod-shaped organelles with a double membrane. The inner membrane is infolded many times, forming a series of projections (called cristae). The mitochondrion converts the energy stored in glucose into ATP (adenosine triphosphate) for the cell.
<u>nuclear membrane</u> - the membrane that surrounds the nucleus.
<u>nucleolus</u> - an organelle within the nucleus - it is where ribosomal RNA is produced. Some cells have more than one nucleolus.
<u>nucleus</u> - spherical body containing many organelles, including the nucleolus. The nucleus controls many of the functions of the cell (by controlling protein synthesis) and contains DNA (in chromosomes). The nucleus is surrounded by the nuclear membrane.
<u>ribosome</u> - small organelles composed of RNA-rich cytoplasmic granules that are sites of protein synthesis.
<u>rough endoplasmic reticulum</u> - (rough ER) a vast system of interconnected, membranous, infolded and convoluted sacks that are located in the cell's cytoplasm (the ER is continuous with the outer nuclear membrane). Rough ER is covered with ribosomes that give it a rough appearance.
<u>smooth endoplasmic reticulum</u> - (smooth ER) a vast system of interconnected, membranous, infolded and convoluted tubes that are located in the cell's cytoplasm (the ER is continuous with the outer nuclear membrane). The space within the ER is called the ER lumen. Smooth ER transports materials through the cell. It contains enzymes and produces and digests lipids (fats) and membrane proteins.
<u>vacuole</u> - fluid-filled, membrane-surrounded cavities inside a cell. The vacuole fills with food being digested and waste material that is on its way out of the cell." I quote from my science paper. It was exhausting! But I know all this so I added some extra.
Collagen is secreted by fibroblasts. Some type of collagen are also secreted by epithelial cells. There are different types of collagen in the body.
Collagen is the most abundant protein in the body and a key components of all connective tissues. It provides the infrastructure of the muscoskeletal system which are essential for mobility.
Answer:
Walking alone late one night, you are startled by a moving shadow that you glimpse out of the corner of your eye. The sympathetic division of the autonomic nervous system is activated. When you realize it is just the neighbor’s pet, the parasympathetic division lessens your physiological arousal.
Answer: The carbon dioxide is the output and oxygen is the input of the Scuba apparatus.
Explanation:
The scuba apparatus is a life saving apparatus used by the sea divers. It recycles the exhaled gas and removes the carbon dioxide and compensates for the utilized oxygen gas before the diver is actually supplied with the gas for the purpose of breathing in a circuit. Hence, the carbon dioxide gas is the output and the oxygen is the input.
