4 Cell Science Questions?
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Eukaryotic cells have more membrane bound organelles, since no one wants to touch that question.
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about 9,000,000 cells
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The cytoplasm containing the other cell parts.
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Cell division\nMitosis\nMeiosis\nMetabolism\nProtein synthesis\nNucleic acid synthesis\nEnergy transfer to do work\nRespiration\nPhotosynthesis (in plant cells)\nTransport across cell membrane
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Try this , it really helped me in my first few lectures in cell bio , such as DNA and RNA . Loads of animations and stuff ! \n\nhttp://www.johnkyrk.com/DNAtranscription.html
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1) *more info?\n2) microscopy\n3) electron
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G'day Joanne F,\n\nThank you for your question.\n\nIt is essential if you are studying medicine to have a good understanding of how cells and tissues work. It is also useful to know how particular cells such as blood cells work.\n\nRegards
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atom, molecule, cell, tissue, organ, organ system, and organism\n\nThe rest is a grand surprise that only the elite few can figure out.\n\nDon't hurt yourself with the pages of your Bio book.
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Answer = A\n\nA larger cell (answer B) can hold more charged particles, but a small cell with 5 charged particles will have the same potential as a large cell with 5 charged particles!\n\n(C) and (D) relate to how quickly the cell can re-creat the resting membrane potential once, say, an action potential has passed through the nerve.
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a group of cells form a tissue
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Biology, Chemistry, Physics, Human Anatomy
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A plant cell has a cell wall.\n\nhttp://www.bbc.co.uk/schools/ks3bitesize/science/biology/lifecells2_3.shtml
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its been a while since bio.. but here is a shot...\n\n1) RRHH\n2) RrHh\n3) rRhH\n4) rrhh\n\nLet me know it i got it right!?!?!
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I did two:\n\n- under what colour of light do plants grow best?\n- what kind of ice melts slowest? (with sugar, salt, vinegar, carbonated water, etc.)
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hi, i work 4 a book company, and 1 of our regular books is on cell and molecular biology, if you email me, i can probably give you an answer on exactly what ur question is.
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Hi\n\nBlood Cells      \nBlood contains several different types of cells. Some cells, such as red blood cells, carry oxygen to other cells. Other types of cells, such as white blood cells or leukocytes, provide protection from foreign cells and infectious agents. Cell fragments called platelets provide protection against bleeding. The red blood cells of different animals can have different structures.  \n \nSheep red blood cells  \nIndividual red blood cells from a sheep appear colorless when viewed under a microscope. (Images of individual human, sheep, and zebrafish red blood cells were taken at the same magnification and appear to scale.) \n \nZebrafish red blood cells  \nIndividual red blood cells from a zebrafish appear colorless when viewed under a microscope. \n \nField of human red blood cells  \nIndividual disk-shaped red blood cells appear colorless when viewed under a microscope. The pink tint on the left of the image is due to clotting of several layers of red blood cells. \n \nHuman white blood cell - phagocytosis  \nHuman white blood cells engulf green fluorescent particles in a process called phagocytosis. In our bodies, these cells phagocytose invading organisms, such as bacteria, to fight infection.  \n\nHuman white blood cells  \nWhite blood cells are an important part of our immune system, moving to sites of infection to engulf and destroy microbes. In this movie, white blood cells crawl along a glass slide. Disk-shaped red blood cells can be seen floating in the frame. \n \nRed Blood Cells:\nThe red blood cells are also known as erythrocytes. The red blood cells have a unique appearance. They have been described as looking like a donut because they are thinner in the center and thicker around the edges. They are very flexible with the ability to twist and bend through the blood vessels. The red blood cells are only 1/25,000 of an inch in size.\n\nA major function of the red blood cells is to carry oxygen to all the tissues from the lungs. The red blood cells than transport the carbon dioxide from the cells because of breaking down the nutrients\n\nThe reason the erythrocytes are known as red blood cells is because of a substance called hemoglobin. Hemoglobin is composed of simple protein and iron pigments and when combined with oxygen their color becomes a bright scarlet.\n\nRed blood cells are made in the red bone marrow. In infants every bone in their body produces red blood cells. In the adult the red blood cells can be produced in the thoracic bones, vertebrae, cranial bone and ends of femur and humerus bones. Red blood cells only live for approximately 120 days. The blood contains about 25 trillion red blood cells and has to replace them at about 3 million per second. If for some reason there is a red blood cell deficiency a problem called anemia can arise.\n\nanother structures is Chemical structure of red blood cells\n\nStill more is there to share.   If i find time, i can able to give more inputs on this.\n\nRgds/Venky, Chennai
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1) b)\n\n2) [H2O]^2 / 2[H2] [O2]\n  \n   [NO]^2 / [N2] [O2]\n\n3) b)\n\n4) b)