Diffusive Transport vs. Active Transport
... cytoplasm. Kate Luby-Phelps observations of diffusion of dextrans in cytoplasm show nonuniformity with larger particles (Luby-Phelps, 2000). The cortical actin region of cytoplasm is restrictive of large particle diffusion whereas the perinuclear region is not. Active Transport For directed transpor ...
... cytoplasm. Kate Luby-Phelps observations of diffusion of dextrans in cytoplasm show nonuniformity with larger particles (Luby-Phelps, 2000). The cortical actin region of cytoplasm is restrictive of large particle diffusion whereas the perinuclear region is not. Active Transport For directed transpor ...
Cell Transport - cloudfront.net
... 1. How is passive transport different from active transport? 2. What are three types of passive transport? What do these all have in common? Be as specific and thorough as you can. 3. What does the body use iodine for? What kind of transport is necessary to transport this molecule into a cell? 4. Wh ...
... 1. How is passive transport different from active transport? 2. What are three types of passive transport? What do these all have in common? Be as specific and thorough as you can. 3. What does the body use iodine for? What kind of transport is necessary to transport this molecule into a cell? 4. Wh ...
15 The diagram shows cells from a storage organ of a flowering
... The student maintained the temperature at 20oC and measured the distance travelled by the air bubble in the capillary tube for a period of five minutes on three occasions for each light intensity. The student’s results are shown in Table 3.1 (a) (i) Explain why the student included the glass tank an ...
... The student maintained the temperature at 20oC and measured the distance travelled by the air bubble in the capillary tube for a period of five minutes on three occasions for each light intensity. The student’s results are shown in Table 3.1 (a) (i) Explain why the student included the glass tank an ...
Biology 101 Chapter 4 Cells as the Basic Unit of Life
... When dealing with mitochondria and chloroplasts, note their similarity in structure and function. These are the main two, the only two, organelles involved in energy transformations. They either make food from energy or burn food for energy. They are inexorably linked together. Also note that the mi ...
... When dealing with mitochondria and chloroplasts, note their similarity in structure and function. These are the main two, the only two, organelles involved in energy transformations. They either make food from energy or burn food for energy. They are inexorably linked together. Also note that the mi ...
Chapter 3 Section 2 Organelles
... • Things move through it to go to other places in the cell • Can be either rough or smooth • Answer: endoplasmic reticulum ...
... • Things move through it to go to other places in the cell • Can be either rough or smooth • Answer: endoplasmic reticulum ...
Metabolomics of a single vacuole reveals metabolic dynamism in an
... unidentified peaks detected using CE-MS analysis (data not shown). We also used liquid chromatography-mass spectrometry metabolomic analysis (Matsuda et al., 2009) on a C. australis vacuole and cytoplasm. Although secondary metabolites were not identified, most peaks were classified into vacuolar or ...
... unidentified peaks detected using CE-MS analysis (data not shown). We also used liquid chromatography-mass spectrometry metabolomic analysis (Matsuda et al., 2009) on a C. australis vacuole and cytoplasm. Although secondary metabolites were not identified, most peaks were classified into vacuolar or ...
Cytology
... The cytoskeleton is not only a structural support system (framework of the cell), but also enables cellular movement to occur! Diapedesis Phagocytosis & exocytosis Network for motor proteins to “walk” along ...
... The cytoskeleton is not only a structural support system (framework of the cell), but also enables cellular movement to occur! Diapedesis Phagocytosis & exocytosis Network for motor proteins to “walk” along ...
Cell Factory Project
... 1. To get started, first decide what your factory will produce 2. Discuss the areas of your factory and how their function relates to the organelles of a cell. 3. Make a key for your factory 4. Plan your poster 5. Draw your factory on the poster board. Please tape or glue the Cell Factory Project Ru ...
... 1. To get started, first decide what your factory will produce 2. Discuss the areas of your factory and how their function relates to the organelles of a cell. 3. Make a key for your factory 4. Plan your poster 5. Draw your factory on the poster board. Please tape or glue the Cell Factory Project Ru ...
Cell Structure Section 2 The Framework of the Cell
... Making and Exporting Proteins • The ribosomes located on the rough ER make proteins which then cross into the membranes of the ER. The ER membrane then pinches off and forms a vesicle around the proteins. • Vesicles transport the proteins from the rough ER to the Golgi apparatus, where they are modi ...
... Making and Exporting Proteins • The ribosomes located on the rough ER make proteins which then cross into the membranes of the ER. The ER membrane then pinches off and forms a vesicle around the proteins. • Vesicles transport the proteins from the rough ER to the Golgi apparatus, where they are modi ...
Document
... also a myth that drinking sea water will cause you to go insane, but people marooned at sea will speed up dehydration (and death) by drinking sea water. • This is also why “salting fields” was a common tactic during war, it would kill the crops in the field, thus causing food shortages ...
... also a myth that drinking sea water will cause you to go insane, but people marooned at sea will speed up dehydration (and death) by drinking sea water. • This is also why “salting fields” was a common tactic during war, it would kill the crops in the field, thus causing food shortages ...
Cells - Cloudfront.net
... a. They grow and reproduce. b. Many are large, multi-cellular organisms. c. They are more complex than cells of eukaryotes. d. They have cell membranes and cytoplasm. 9. What is an organelle? 10. Are all eukaryotes large, multi-cellular organisms? ...
... a. They grow and reproduce. b. Many are large, multi-cellular organisms. c. They are more complex than cells of eukaryotes. d. They have cell membranes and cytoplasm. 9. What is an organelle? 10. Are all eukaryotes large, multi-cellular organisms? ...
3.2 Cell Structures
... The mitochondrion (plural, mitochondria) is an organelle that makes energy available to the cell. This is why mitochondria are sometimes referred to as the power plants of the cell. They use energy from organic compounds such as glucose to make molecules of ATP (adenosine triphosphate), an energy-ca ...
... The mitochondrion (plural, mitochondria) is an organelle that makes energy available to the cell. This is why mitochondria are sometimes referred to as the power plants of the cell. They use energy from organic compounds such as glucose to make molecules of ATP (adenosine triphosphate), an energy-ca ...
ch7_sec2
... Making and Exporting Proteins • The ribosomes located on the rough ER make proteins which then cross into the membranes of the ER. The ER membrane then pinches off and forms a vesicle around the proteins. • Vesicles transport the proteins from the rough ER to the Golgi apparatus, where they are modi ...
... Making and Exporting Proteins • The ribosomes located on the rough ER make proteins which then cross into the membranes of the ER. The ER membrane then pinches off and forms a vesicle around the proteins. • Vesicles transport the proteins from the rough ER to the Golgi apparatus, where they are modi ...
Slide 1
... – primary active transport establishes high [Na] outside the cell - creates a Na gradient -diffusion of Na back into the cell allows the movement of a second ion – either in the same direction as the Na+ (symporter) or in the opposite direction (antiporter) e.g. Na+/Ca2+ antiporter – opposite direct ...
... – primary active transport establishes high [Na] outside the cell - creates a Na gradient -diffusion of Na back into the cell allows the movement of a second ion – either in the same direction as the Na+ (symporter) or in the opposite direction (antiporter) e.g. Na+/Ca2+ antiporter – opposite direct ...
Cell Growth Section 10-1 pgs 241-243
... As the town grows, more people will begin to use this street. ...
... As the town grows, more people will begin to use this street. ...
Introduction to the Cell - Savita Pall and Chemistry
... fluid-filled tubes that transport materials, such as proteins, through the cell _________ a single layer of membrane enclosing fluid in a sac ________ ________ contains genetic information that controls all cell activities functions to allow some substances to enter while keeping others out ________ ...
... fluid-filled tubes that transport materials, such as proteins, through the cell _________ a single layer of membrane enclosing fluid in a sac ________ ________ contains genetic information that controls all cell activities functions to allow some substances to enter while keeping others out ________ ...
16792_cell-structure-handout
... distinguishes living things from all other matter. The cell is the smallest unit of matter that can carry on all the processes of life. 1.Every living thing - from the tiniest bacterium to the largest whale - is made of one or more cells. 2.Before the 17th century, no one knew that cells existed, si ...
... distinguishes living things from all other matter. The cell is the smallest unit of matter that can carry on all the processes of life. 1.Every living thing - from the tiniest bacterium to the largest whale - is made of one or more cells. 2.Before the 17th century, no one knew that cells existed, si ...
Modelling a Debris Flow with PCRaster
... value of φ but the geometry isn’t perfect ► I think to solve this problem by the introduction of velocity because I suppose it is created by the values of Hcrit based only on slope. ...
... value of φ but the geometry isn’t perfect ► I think to solve this problem by the introduction of velocity because I suppose it is created by the values of Hcrit based only on slope. ...
3.4 Diffusion and Osmosis - Greenall
... • A solution is isotonic if it has the same concentration of solutes that the cell has. Equal amount of water enter and exit a cell so size remains constant. • A solution is hypertonic if it has a higher concentration of solutes than a cell. More water diffuses out of the cell, and the cell shrivels ...
... • A solution is isotonic if it has the same concentration of solutes that the cell has. Equal amount of water enter and exit a cell so size remains constant. • A solution is hypertonic if it has a higher concentration of solutes than a cell. More water diffuses out of the cell, and the cell shrivels ...
Lab Cell membrane bubble
... hydrophilic The “Fluid Mosaic Model” of the cell membrane means that the cell membrane is made up of many small molecules. Each one is moving around and changing position constantly. ...
... hydrophilic The “Fluid Mosaic Model” of the cell membrane means that the cell membrane is made up of many small molecules. Each one is moving around and changing position constantly. ...
TOPIC: Cells AIM: What are the parts of a cell?
... TOPIC: Cells AIM: Describe the different cell organelles and their functions. Do Now: Take out your cell organelle reading notes AND your numbers. HW: Atom project due Monday! ...
... TOPIC: Cells AIM: Describe the different cell organelles and their functions. Do Now: Take out your cell organelle reading notes AND your numbers. HW: Atom project due Monday! ...
K + channel
... inside cells cell’s characteristic reactions - Ex> GLUT(glucose transporter) have 5 homologs. In case of GLUT3 of high affinity for glucose, expressed only on neurons and a few other cell types. When glucose is present at low concentration, first call on glucose. ...
... inside cells cell’s characteristic reactions - Ex> GLUT(glucose transporter) have 5 homologs. In case of GLUT3 of high affinity for glucose, expressed only on neurons and a few other cell types. When glucose is present at low concentration, first call on glucose. ...
Cell Structures and Functions, Microscopy, and - Parkway C-2
... Organize spindle fibers during cell division so that all cell parts get divided equally into two new cells. ______________________________________ They are found in the cytoplasm of most eukaryotic cell, but are not found in plant cells. ______________________________________________________________ ...
... Organize spindle fibers during cell division so that all cell parts get divided equally into two new cells. ______________________________________ They are found in the cytoplasm of most eukaryotic cell, but are not found in plant cells. ______________________________________________________________ ...
Cytoplasmic streaming
Cytoplasmic streaming, also called protoplasmic streaming and cyclosis, is the directed flow of cytosol (the liquid component of the cytoplasm) and organelles around large fungal and plant cells through the mediation of actin. This movement aids in the delivery of organelles, nutrients, metabolites, genetic information, and other materials to all parts of the cell. Cytoplasmic streaming occurs along actin filaments in the cytoskeleton of the cell.Cytoplasmic streaming was first discovered in the 1830s. The scientific breakthrough assisted scientists in developing an understanding of the different roles of cells and how they function as the basic operating systems of life.This process occurs through the operation of motor proteins called myosins.These proteins use energy of adenosine triphosphate (ATP) to act as a molecular motor, which slides along actin filaments. This works in a manner that tows the organelles and other cytoplasmic contents in the same direction. Myosin proteins consist of two conjoined proteins. If one protein remains attached to the substrate, the substance acted upon by the protein, such as a microfilament, has the ability to move organelles through the cytoplasm.The green alga genus Chara and other genera in the Division Charophyta, such as Coleochaete, are thought to be the closest relatives of land plants. These haploid organisms contain some of the largest plant cells on earth, a single cell of which can reach up to 10 cm in length. The large size of these cells demands an efficient means to distribute resources, which is enabled via cytoplasmic streaming.Cytoplasmic streaming is strongly dependent upon intracellular pH and temperature. It has been observed that the effect of temperature on cytoplasmic streaming created linear variance and dependence at different high temperatures in comparison to low temperatures. This process is complicated, with temperature alterations in the system increasing its efficiency, with other factors such as the transport of ions across the membrane being simultaneously affected. This is due to cells homeostasis depending upon active transport which may be affected at some critical temperatures.In plant cells, chloroplasts may be moved around with the stream, possibly to a position of optimum light absorption for photosynthesis. The rate of motion is usually affected by light exposure, temperature, and pH levels.In reference to pH, because actin and myosin are both proteins, strong dependence on pH is expected. The optimal pH at which cytoplasmic streaming is highest, is achieved at neutral pH and decreases at both low and high pH.The flow of cytoplasm may be stopped by:Adding Lugol's iodine solutionAdding Cytochalasin D (dissolved in dimethyl sulfoxide)↑ ↑ ↑ ↑ ↑ ↑