wat's the function of  a dictyosome (golgi apparatus)?
89631
The Golgi apparatus looks like a stack of flat pancakes, they are actualy flattened membranes. They sort proteins, and other cellular substances and package them into membrane bound structures called vesicles. The Golgi apparatus is like the warehouse that stores, sorts, and packages materails for shippment to other locations.
373371
The primary function of the male reproductive system is reproduction, which includes the production of spermatozoa, the transportation of spermatozoa from the testes out of the male body, the secretion by glands, and the placement of spermatozoa in the female reproductive tract. Spermatozoa are produced in the testes then transported from the testes by a series of ducts which become gradually larger and connect with the urethra of the penis.  Various accessory glands in the male system secrete materials which together with the spermatozoa constitutes the semen. A secondary function of the male reproductive system is the production of the male hormones which are responsible for the secondary sex characteristics of the male animal.\n\nhttp://www.cvm.okstate.edu/instruction/mm_curr/histology/MR/himrp1.htm\n\nThe male reproductive system, like that of the female, consists of those organs whose function is to produce a new individual, i.e., to accomplish reproduction. This system consists of a pair of testes and a network of excretory ducts (epididymis, ductus deferens (vas deferens), and ejaculatory ducts), seminal vesicles, the \nprostate, the bulbourethral glands, and the penis. \n\nhttp://training.seer.cancer.gov/module_anatomy/unit12_2_repdt_male.html\n\nThe organs of the male reproductive system are specialized for the following functions:\n\nTo produce, maintain and transport sperm (the male reproductive cells) and protective fluid (semen) \nTo discharge sperm within the female reproductive tract \nTo produce and secrete male sex hormones \n\n\nhttp://www.cchs.net/health/health-info/docs/2300/2376.asp?index=9117
89687
Both are eukaryotic (containing a "true nucleus").  \n\nAnimal Cells lack a cell wall and adjacent cells are connected by junctions (adhesive, gap or tight).  Animal cells contain centrioles (help create microtubules used in mitosis and meiosis) and lysosomes (organelles used to digest wastes and old organelles). During telophase and cytokinesis the cells separate via a cleavage furrow.\n\nPlant Cells contain a cell wall (think of the cell wall as the "skeleton" composed mainly of cellulose) and rely on turgor pressure to keep them upright.  Adjacent cells are connected by channels called plasmodesmata.  You will not find centrioles or lysosomes in a plant cell, but you will find a really cool organelle called a large centrol vacuole.  This organelle is where the water is stored in a cell and it helps maintain the turgor pressure described above.  It also acts as a lysosome, storing chemicals and waste products.  The Central vacuole can also store the pigments you see in flowers as well as poisons used to deter predators.  And of course, in a plant cell you will find the plasts as mentioned by someone earlier.. including the famous chloroplasts (the site for photosynthesis) as well as the chromoplasts (contain pigments) and amyloplasts (specialized for starch storage). During telophase and cytokinesis, the cells are separated by a structure called a cell plate.   \n\nUmmm, that's all I can come up with right now!
179271
vacuoles r mainly used to store stuff. during phagocytosis for eg, they compartmentalise ingested material. If the cell wants to eat whatever they took in, the vacuoles will typically fuse with lysosomes, and the lysosome will break down whatever's inside the vacuole by using nasty acids at pH 1-2(sometimes, lysosomes r called suicide bags, because on occassion, lysosomes pop and spill its acid into the cell and kills it... but normally, it's thick membrane stops that from happenin... lol)\n\nYa, vacuoles can also be used to transport material around the cell. The Golgi apparatus, for eg, uses it to transport membrane proteins to the plasma membrane.\n\nHope this helps!
921454
Movement of substances across the cell membrane is the function of the 3 types of diffusion.\n\n\nThe generalized cell functions include movement of substances across the cell membrane, cell division to make new cells, and protein synthesis. \n\n\nMovement of substances across the cell membrane \nThe survival of the cell depends on maintaining the difference between extracellular and intracellular material. Mechanisms of movement across the cell membrane include simple diffusion, osmosis, filtration, active transport, endocytosis, and exocytosis. \n\nSimple diffusion is the movement of particles (solutes) from a region of higher solute concentration to a region of lower solute concentration. Osmosis is the diffusion of solvent or water molecules through a selectively permeable membrane. Filtration utilizes pressure to push substances through a membrane. Active transport moves substances against a concentration gradient from a region of lower concentration to a region of higher concentration. It requires a carrier molecule and uses energy. Endocytosis refers to the formation of vesicles to transfer particles and droplets from outside to inside the cell. Secretory vesicles are moved from the inside to the outside of the cell by exocytosis.
142210
Since a cell's volume increases significantly more than its surface area as it enlarges, the membrane cannot supply all the requirements of the cytoplasm past a certain point.  This is why cell size is generally limited.  So the function you are referring to is diffusion, the movement of material into/out of the cytoplasm.
455022
cells dont have cells but they they have organelles which are sort of like cells, which includes mitochondria, ribosomes, golgi apparatus, etc. that have various functions such as converting sugar to energy, synthesizing proteins, etc. they're sort of like minature organs if the cell was your body (hence the name organelles
14737
There are two differences the the Endoplasmic Reticulum, which is the most extensive part of the endomembrane system. The rough endoplasmic reticulum (ER) have ribosomes attached to the cytoplasmic surface. The smooth ER lacks ribosomes.\nSmooth ER serves diverse functions in different cells: Its enzymes are involved in phospholipid, steroid, and sex hormone synthesis; carbohydrate metabolism; and detoxification of drugs and poisons.\nSmooth ER also functions in storage and release of calcium ions during muscle contraction.\nProteins intended for secretion are manufactured by membrane-bound ribosomes and then threaded into the lumen of the rough ER, where they fold into their native conformation. Many are covalently bonded to small carbohydrates to form glycoproteins. Secretory proteins are transported from the rough ER in membrane-bound transport vesicles.\nRough ER manufactures membranes for the cell. Enzymes built into the membrane assemble phosolipids, and membrane proteins formed on bound ribosomes are inserted into the ER membrane. Transport vesicles transfer ER membrane to other parts of the endomembrane system.
157854
it is an organelle.  that means it is a part of the cell.  it is named after a Golgi who is a guy that worked with differet stains used to view speciems under a microscope.  the golgi apparatus is involved with packaging and modification of proteins that will be secreted by the cell.\n\nyou'll have to learn about dna -> rna -> protein for that to make sense.  but the golgi apparatus or body is used for protein modification.
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Yes, it is C, pardner.\n\nHelps cell to continually turn over intracellular proteins before they get too old or nonfunctional. Breaks them up into lttle pieces. On the macro level, keeps you looking like yourself instead of slowly fading away.\n\n"Lysosomes contain various hydrolytic enzymes that are capable of digesting nucleic acids, polysaccharides, fats and proteins. The inside of a lysosome is acidic."\nhttp://biology.about.com/library/weekly/...\n\n2004 Nobel Prize:\n"Proteasomes are complex structures inside cells that break down proteins. Ubiquitin proteasome system is a barrel-shaped multi-protein complex that can specifically digest other proteins into short polypeptides and amiino acids in an ATP-driven reaction."\nhttp://en.wikipedia.org/wiki/proteasome...\n\n\nHere is a good site for checking out things in this subject area. It is a wonderful biology site.\n\nhttp://users.rcn.com/jkimball.ma.ultrane...\n\nThe Golgi apparatus functions in transporting materials out of the cell. \n\nDon't forget to pull up the urls and read more.
833828
Well to begin, vacuoles, the cytoskeleton, and cilia are not oraganelles but are still important.  All of these on your list are vital.  If the nucleus failed to work, then immediately the cell would cease to function because no direction or synthesis would be available.  The ERs handle, at least in simple terms, protein production necessary for cell life.  If the Golgi stopped, all of the cells produced material would buuld up in the cell and nothing could be transported from the cell, ending in collapse.  Lysosomes protect and destroy foreign or unwanted substances, so those ceasing would probably end in the cell dying of an infection or foreign problem.  The vacuoles are not organelles but are simply small bubbles of membrane used for transport, they bring in necessary substances from the outside of the cell using glycoproteins.  Chloroplasts are in only plant cells, and give the cell energy- without them, no energy to do things.  Same goes for mitochondrion, except they can be in both animals and plants.  Cytoskeleton is necessary only in animal cells and without it the cell would collapse and cease to function.  The cilia/flagella regulate movement, and altho arent necessary to the cell directly, and altho they arent always on cells, could have a negative effect if the cell could not get to its needed location.\n\nOverall, most are necessary for cell life, and please forgive any simplifications etc these are very simple descriptions of complex things.
882123
golgi bodies are organelles found in eukaryotic plant and animal cells. They process and package molecules synthesized by the cell, which are usually lipids or proteins.
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Centrosomes. They function the same way as centrioles.
489251
protozoa are single cellular organisms thus they do not possess systems they have cell organells to perform different functions . in protozoa food is circulated with the help of vacuole
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They are involved in signal transduction mostly.  They are involved at the cell membrane.  They phosphorylate Rho GTPases.
787153
Goblet cells are specialised columnar epithelial cells. There function is to produce mucus - especially in the respiratory and digestive tracts.
760480
Molecules found on the outside of the cell are endocytosed into vesicles and fuse with endosomes (which are just a collection of vesicles) once an endosome recieves the special digestive enzymes from the Golgi it becomes a lysosome.\n\nSo overall yup lysosomes are just a special vesicle!