BIOLOGY NOTES
http://rahul-biologynotes.blogspot.com/Companion cells connect to sieve-tube cells by numerous plasmodesmata, and are smaller and more generalized than sieve-tube cells; they have a nucleus.4. Glycolysis begins with the activation of glucose with two ATP; the glucose splits into two C3 molecules known as G3P, each of which carries a phosphate group
A variety of central players are illustrated including different membrane proteins imbedded into the cell membrane, the mitochondria is shown as a orange oval while an empty oval depicts the nucleus. To counter the multitude of processes that are capable of triggering death, cells have devised a large number of cellular processes that serve to prevent inappropriate or premature PCD
PDGF-D seems to be required for good smooth muscle growth once VEGF has incuded endothelial cells to sprout into the healing wound (Blood 104: 3198, 2004). When it is caused by bacterial infection of the bloodstream, it's called SEVERE SEPSIS (JAMA 303: 2495, 2010; the current use seems to be that "sepsis" still means bacteria actually multiplying in the bloodstream)
182: 2742, 2009.) Fournier's gangrene CAVITATION results from removal of necrotic material (i.e., draining a huge abscess, coughing up caseous debris in tuberculosis, physiologic removal of debris in a cerebral infarct, etc.) FIBRINOID NECROSIS is a time-honored term for damage to the walls of arteries that allows plasma proteins to seep into, and precipitate in, the media (some pathologists call this "insudation"). Lately we've also come to recognize the importance of nitric oxide in tissues; despite its popularity with viagra users, it's a free radical and generates even meaner free radicals (peroxinitrite, ONOO.)
Cytochemistry and histochemistry
exfoliative cytology : microscopic examination of cells desquamated from a body surface or lesion as a means of detecting malignancy to measure hormonal levels, etc. reverse (R) Giemsa method : a method in which the reciprocal (R-bands) of the banding pattern seen in the Giemsa method for chromosomes is obtained T-staining method : a method for staining only the terminal ends of chromosomes by means of either Giemsa stain or acridine orange; it results in bands (T bands) of dark violet (Giemsa) or fiery orange (acridine orange) Leishman's stain : a mixture of methylene blue and eosin for staining blood cells and certain parasites
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12 people found this useful Edit Share to: Was this answer useful? Yes Somewhat No Thanks for the feedback! What would you like to do? Flag Wm Turner III 6,039 Contributions Answered In Stock Market What is the stock market ticker? The stock market ticker is a term which came from the 1800s. (MORE) 6 people found this useful In entertainment This Is Where You Know The Cast of Marvel's Daredevil From Netflix's superhero series "Marvel's Daredevil" has been earning praise from fans and critics alike
What type of activity requires a team of people to work together in order to complete a task? Answers might include building a human pyramid or constructing an arch out of blocks. Channel Statistics Included in these Channels: authorstream channels ppt slides Views: 251 Subscribers: 0 Presentations: 1 You do not have the permission to view this presentation
However, in many endemic areas, where the rates of reinfection are high and treatment is expensive, the standard practice is to only treat symptomatic cases. The infection is acquired through the ingestion of cysts and the risk factors are similar to other diseases transmitted by the fecal-oral route (see Table)
Their distinctive features are: A large central vacuole (enclosed by a membrane, the tonoplast ), which maintains the cell's turgor and controls movement of molecules between the cytosol and sapPowerPoint Presentation: A primary cell wall containing cellulose , hemicellulose and pectin , deposited by the protoplast on the outside of the cell membrane Chloroplasts that contain chlorophyll , the pigment that gives plants their green color and allows them to perform photosynthesis Higher plants, including conifers and flowering plants lack the flagella and centrioles that are present in animal cells . This leads to growth in multicellular organisms (the growth of tissue ) and to procreation ( vegetative reproduction ) in unicellular organisms .PowerPoint Presentation: Prokaryotic cells divide by binary fission
If scientists can identify microorganisms that attack all the kinds of waste we produce, expensive treatment plants and dangerous toxic dumps might be put out of business.44. Base your answers to questions 59 and 60 on the information below and on your knowledge of biology.Cell communication involves a cell detecting and responding to signals from other cells
What can you therefore infer about the nutrition of Volvox? Within the spheroid you should be able to observe one or more large reproductive cells or gonidia. With this preparation, you can study the movement of the food particles, the formation of food vacuoles, and the subsequent movement of the food vacuoles within the cytoplasm
http://cbse-notes.blogspot.com/2012/04/class-9-ch5-cellfundamental-unit-of.htmlQ32: What do you mean by Endocytosis? How does an Amoeba obtain its food? Answer: The process by which a cell engulfs material to bring it into the cell is called endocytosis. Q37: Who discovered Golgi apparatus? Answer: Camillo Golgi Q38: Which cell organelle is known as "protein factory"? Answer: Ribosomes Q39: What is the energy currency of the cell called? Answer: ATP (Adenosine triphosphate) Q40: When chromosomes are visible in the nucleus? Answer: During cell division
Note: If you are concerned about consuming large quantities of unhealthy theatre popcorn, try carrying a small Himalayan rock salt plate and lick it during the movie. Left: The cell membrane has pulled away from the cell wall marking the onset of plasmolysis called "incipient plasmolysis." Right: The entire cell contents (protoplast) within the membrane has shrunk into a blob in the center of the cell
Protozoa - Biology Encyclopedia - cells, body, examples, function, animal, organisms, chromosomes, DNA, life
Ciliates are unique among protozoa in having two kinds of nuclei: the micronucleus, which is involved only in sexual reproduction; and the macronucleus, which is involved only in the production of messenger ribonucleic acid (RNA) for cell function. Some extrusomes secrete an amorphous material that is involved in formation of a capsule or cyst, and others discharge a pointed projectile that may serve for protection or predation
For instance, many protists are mixotrophs, capable of both heterotrophy (secondary energy derivation through the consumption of other organisms) and autotrophy (primary energy derivation, such as through the capture of sunlight or metabolism of chemicals in the environment). The protozoans are unified by their heterotrophic mode of nutrition, meaning that these organisms acquire carbon in reduced form from their surrounding environment
The amoeba "breathes" using this membrane - oxygen gas from the water passes in to the amoeba through the cell membrane and carbon dioxide gas leaves through it
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