what special vesicles contain enzymes?
813946
Lysosomes are organelles that contain digestive enzymes to digest macromolecules. They are found in both animal and plant cells but they are rare in plant cells. They are built in the Golgi apparatus.
801751
Well, H202 would be the substrate....and I forget what enzyme degrades H2O2........its in the peroxisome i think...
907507
nucleus, cytoplasm and protoplasm ....
458884
do you mean duodenum? that is the large intestine with the small intestine being the ileum. not sur ewhich enzymes are present in each part, been a while since school. look up human enzymes
857859
mostly phospholipids (the bulk of the membrane is the phospholipid bilayer, with hydrophobic tails pointed towards each other and hydrophilic heads pointing out), with a bunch of proteins stuck in it like little potatoes :) \n\nmixed in the sea of phospholipids are small amounts of cholesterol (roughly the same size) to help prevent weakening of the cell membrane at high temperatures.\n\nAs for proteins, there are many types with many functions!\n- transport proteins\n- identity markers\n- junctioning proteins (stick to other cells)\n- anchors for cytoskeleton\n- enzymes\n- hormone receivers
674264
I don't know of any other enzymes that can be conjugated to secondary antibodies, at least, none that are commercially available and commonly used.  However, there are quite a few secondary antibodies available that are conjugated to fluorescent molecules (e.g. TRITC, FITC, Cy3, Texas Red, etc).
85724
All enzymes are proteins that catalyze reactions and are not changed or comsumed during those reactions. They all have a temperature and a pH at which they work best. They have an active site, require a substrate, and they all lower the activation energy level required for certain reactions to occur.  \n\n\n (Ribosomes are made of two subunits - one is RNA, the other is protein - and are not enzymes.)
219841
Enzymes are Proteins and Proteins are made of Amino Acids.\nCo-enzymes that help Enzymes function are made of vitamins.\nThere are some important conditions for Enzymes to be able to function:\n1)They only function in liquid areas.\n2)Each Enzyme has it's own distinctive shape that let's function with only one sort of matter.\n3)Enzymes are very sensitive towards the temperature of the surrounding environment. For example the enzymes in our body can not function very well when the body temperature goes higher than 38 or 39.\n4)Enzymes are very sensitive towards the PH of their surrounding area. \nRemember this: Enzymes help chemical reactions happen faster but they will not be used during this reaction.
1088386
enzyme catalysis, defense, transport, support, motion, regulation, and storage.
708467
enzymes are strings of amino acids and other consituents and can be broken apart chemically by things like acids or bases or other biological materials.  they can also be broken apart through physical means like high temperature or sonication.\n\ndenaturation generally refers to inactivation of an enzyme through some structural change, but taken to a more extreme level, it also includes breaking them apart
1094870
We have used the pH-dependent fluorochrome fluorescein-dextran (FD) to study the acidification of prelysosomal vacuoles (endosomes) and lysosomes isolated from cultured macrophages and fibroblasts. FD was internalized by pinocytosis under conditions that allowed its selective localization in endosomes (1- to 5-min pulse) or in lysosomes (5-min pulse, 30-min chase). Fibroblasts were also exposed to FD at 20 degrees C, at which temperature endosome-lysosome fusion is inhibited. Cells were homogenized and labeled organelles were separated by centrifugation in Percoll density gradients. The addition of ATP rapidly decreased the internal pH of both endosomes and lysosomes, as indicated by a decrease in fluorescence intensity. The pH gradient was dissipated by H+ ionophores and ammonium chloride. Acidification was not affected by inhibitors of the mitochondrial F1,F0-ATPase or the Na+, K, K+-ATPase and did not require permeant anions, Na+, or K+. Of the inhibitors tested, only N-ethylmaleimide prevented the ATP-dependent acidification of both compartments. These findings provide direct support for the existence of an acidic prelysosomal compartment that may be acidified via the same type of H+ pump believed to operate in lysosomes and secretory granules.
942726
Lysosome has no color.  Those colors that you see in textbooks are just for illustration.  If you look at a cell under a microscope, you don't see any colors... they are usually transparent with dark shapes (vacuoles) which some are lysosomes, endosomes, ER, etc.\nLysosomes are vacuoles in the cell that contain lytic enzymes to break down bacteria, proteins, etc.  They do contain different cellular markers on their surface (ex. Lamp-1) where some functions are to acidify the lysosome and determine the trafficking in the cell.
1005772
I'll give some examples and some brief explanations right here:\n\nSubstrate = A substrate is a compound that binds to an enzyme and is converted to a product.  In other words, a substrate is something an enzyme digests.  Anything that is digested is the substrate.\n\nEnzyme = Enzymes are globular proteins, larger in size compared to their substrates.  In other words, they are made up of proteins and digests substrates.\n\nNow, enzymes are 'digesters' and one kind of enzyme can only bind to one kind of substrate.  (e.g. Enzyme A can only bind to Substrate A and not Substrate B)   \n\nLactose = substrate\nLactase = enzyme\n\nHow do I know???\n\nMost substrates have an 'O' to replace the 'A' in Enzymes.\n\nNow, what happens after the enzymes bind/digest to the substrate?\n\nIt converts the substrate into smaller products.  In the Maltose case, maltOse gets digested by maltAse into glucose.  So, glucose in the final product\n\nillustrated by:\n\n``````````(is digested by)\n``````````````Maltase\nMaltose    ---------------->  Glucose\n(substrate)``(enzyme)``(Product)\n\n\nAnother illustrated example:\n\nProtein as the substrate.\n\n````````(is digested by)\n```````````````Pepsin\nProtein      ------------------>  Peptones/Large Polypeptides\n(Substrate)  ```(Enzyme) ````````````````(Product)
950352
Enzymes are catalysts that speed up chemical reactions \n\nLipase- is an enzyme that is used by the body to break down dietary fats into an absorbable form\nPepsin- enzyme is produced in the mucosal lining of the stomach that acts to degrade protein\nAmylase- is a digestive enzyme classified as a saccharidase -an enzyme that cleaves polysaccharides.\nThe sugar maltose is made from two glucose molecules bonded together. The enzyme maltase is shaped in such a way that it can break the bond and free the two glucose pieces. The only thing maltase can do is break maltose molecules, but it can do that very rapidly and efficiently.
1088859
they contain an enzyme that inhibits the jelling process
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here're some informative links http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/E/Enzymes.html , http://en.wikipedia.org/wiki/Enzyme\n\nhope this helps.
383377
Oh Biology, how do I miss thee!!!!!  Ah that was some good times.  Cytochrome c oxidase is part of the respiration cycle and it accepts electrons.  That about all I can remember but thanks for the points and a trip down memory lane.