You Light Up My Life
... 1. Microtubular extensions of the plasma membrane have a 9 + 2 cross-sectional array that arises from a centriole (a type of MTOC) and are useful in propulsion. 2. Flagella are quite long, not usually numerous, and found on one-celled protistans and animal sperm cells. 3. Cilia are shorter and more ...
... 1. Microtubular extensions of the plasma membrane have a 9 + 2 cross-sectional array that arises from a centriole (a type of MTOC) and are useful in propulsion. 2. Flagella are quite long, not usually numerous, and found on one-celled protistans and animal sperm cells. 3. Cilia are shorter and more ...
Media –Rich Lesson Plan - Prairie Public Broadcasting
... Handout titled “Working Together”. ( I would love to cite the source of the drawing, but I cannot find it. This is a sheet I got from another student in college… (long time ago!) and have kept it and used it ever since. ) ...
... Handout titled “Working Together”. ( I would love to cite the source of the drawing, but I cannot find it. This is a sheet I got from another student in college… (long time ago!) and have kept it and used it ever since. ) ...
Cellular Transport Notes
... Solutions and Cellular Transport • Solution: a mixture formed when one substance is dissolved into another substance; ex: Kool-Aid, Jell-o • Solute: the substance being dissolved; ex: Kool-Aid mix, Jell-o mix • Solvent: the substance doing the dissolving; ex: water • Concentration Gradient: the di ...
... Solutions and Cellular Transport • Solution: a mixture formed when one substance is dissolved into another substance; ex: Kool-Aid, Jell-o • Solute: the substance being dissolved; ex: Kool-Aid mix, Jell-o mix • Solvent: the substance doing the dissolving; ex: water • Concentration Gradient: the di ...
Cell grouping
... Why do bacteria have cell walls? With all of the dissolved solutes in a cell, the turgor pressure is about 2 atmospheres - or about the same pressure as in a car tire! Cell walls help withstand these pressures and give the cells shape. ...
... Why do bacteria have cell walls? With all of the dissolved solutes in a cell, the turgor pressure is about 2 atmospheres - or about the same pressure as in a car tire! Cell walls help withstand these pressures and give the cells shape. ...
1. All organisms are composed of one or more cells. 2. The cell is
... proteins & lipids from the ER ...
... proteins & lipids from the ER ...
Science Assignment: Plant and Animal Cells
... You will build a model of an animal cell. Your cell can be edible or non-edible. Your model must include: A title showing your model is an animal cell The following five organelles: cell membrane, cytoplasm, nucleus , mitochondria, vacuoles A label for each organelle. You can write the name of ...
... You will build a model of an animal cell. Your cell can be edible or non-edible. Your model must include: A title showing your model is an animal cell The following five organelles: cell membrane, cytoplasm, nucleus , mitochondria, vacuoles A label for each organelle. You can write the name of ...
This organelle looks like a stack of Give the function for the GOLGI
... Plant –has chloroplast; cell wall; really big vacuole Animal- has centrioles; no cell wall or chloroplasts ...
... Plant –has chloroplast; cell wall; really big vacuole Animal- has centrioles; no cell wall or chloroplasts ...
Biology 123 Dr. Raut`s Class Session 6
... however, this is too slow for the cell to rely on alone, and they often are aided by aquaporins, which are an example of a channel protein. Facilitated diffusion: molecules diffuse passively across the membrane with the help of transport proteins. This allows ions and polar molecules to cross the pl ...
... however, this is too slow for the cell to rely on alone, and they often are aided by aquaporins, which are an example of a channel protein. Facilitated diffusion: molecules diffuse passively across the membrane with the help of transport proteins. This allows ions and polar molecules to cross the pl ...
The muscle
... system), which is made up of smaller subunits. Each muscle fiber extends along the length of the muscle, and each is innervated by one nerve fiber near the middle of the fiber. The muscle fibers are arranged in parallel between the two tendon ends, so that the force of contraction is additive also t ...
... system), which is made up of smaller subunits. Each muscle fiber extends along the length of the muscle, and each is innervated by one nerve fiber near the middle of the fiber. The muscle fibers are arranged in parallel between the two tendon ends, so that the force of contraction is additive also t ...
Bones and ligaments
... MuscleFasicle Myofiber (cell) Myofibril (with many sarcomeres)Myofilaments • Many myofibers connected lengthwise through entire fiber • Many mitochondria • Many nuclei (why? The multiple nuclei arise from the fact that each muscle fiber develops from the fusion of many cells (called myoblasts). ...
... MuscleFasicle Myofiber (cell) Myofibril (with many sarcomeres)Myofilaments • Many myofibers connected lengthwise through entire fiber • Many mitochondria • Many nuclei (why? The multiple nuclei arise from the fact that each muscle fiber develops from the fusion of many cells (called myoblasts). ...
Eukaryotic Cells - SP14
... Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization ...
... Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization ...
Plasma Membrane
... Integral proteins are the hard workers of the cell membrane. Some integral proteins cross the membrane and act as pathways for ions and molecules. Some of the ion movement may not require work (passive transport), but other processes require lot of energy and pumping action (active transport). When ...
... Integral proteins are the hard workers of the cell membrane. Some integral proteins cross the membrane and act as pathways for ions and molecules. Some of the ion movement may not require work (passive transport), but other processes require lot of energy and pumping action (active transport). When ...
a PDF version - Jackson County Schools Strategic Waiver School
... curriculum, so both grade levels are taught the same topics by the same 7-8 teaching teams each year.) Prior to these activities, students have been introduced to related science vocabulary, learned about the organelles and looked at cells, such as cheek cells, under the microscope. They have also h ...
... curriculum, so both grade levels are taught the same topics by the same 7-8 teaching teams each year.) Prior to these activities, students have been introduced to related science vocabulary, learned about the organelles and looked at cells, such as cheek cells, under the microscope. They have also h ...
Cell Structure and Function
... Nucleus allows specific functions to be assigned, freeing up cellular resources for other work. 2. Cell gains an endomembrane system by proliferation of membrane. Increased surface area allows higher rate of transport of materials within a cell. ...
... Nucleus allows specific functions to be assigned, freeing up cellular resources for other work. 2. Cell gains an endomembrane system by proliferation of membrane. Increased surface area allows higher rate of transport of materials within a cell. ...
The Cell in Its Environment
... • How do most small molecules cross the cell membrane? • Why is osmosis important to cells? • What is the difference between passive transport and active transport? ...
... • How do most small molecules cross the cell membrane? • Why is osmosis important to cells? • What is the difference between passive transport and active transport? ...
7.12D: Plant and Animal Cell Organelles A Framework for Funcčon
... 6 If the cell was a ship, then the nucleus would be the captain. The nucleus is an organelle inside the cell that guides all ac>vity. It is the most important part of the eukaryo>c cell’s existence because the nucleus contains deoxyribonucleic acid (DNA), which provides specific instruc>ons fo ...
... 6 If the cell was a ship, then the nucleus would be the captain. The nucleus is an organelle inside the cell that guides all ac>vity. It is the most important part of the eukaryo>c cell’s existence because the nucleus contains deoxyribonucleic acid (DNA), which provides specific instruc>ons fo ...
Cell Membrane!
... 1. Because of its hydrophilic nature, the head will orient (point) toward water. 2. Because of it’s hydrophobic nature, the tails will orient away from water. ...
... 1. Because of its hydrophilic nature, the head will orient (point) toward water. 2. Because of it’s hydrophobic nature, the tails will orient away from water. ...
Key idea 1 notes
... structures and called these structures 'cells' because they reminded him of the rooms that monks lived in. He only saw the outer walls (cell walls) because cork cells are not alive. Anton van Leeuwenhoek (around the same ...
... structures and called these structures 'cells' because they reminded him of the rooms that monks lived in. He only saw the outer walls (cell walls) because cork cells are not alive. Anton van Leeuwenhoek (around the same ...
LEARNING GOALS: To identify cell parts from a diagram
... Which of the following best sequences the cell parts involved in making a protein? (a) nucleus -> Golgi -> vesicle -> RER (b) RER -> vesicle -> Golgi -> nucleus (c) nucleus -> ribosome -> Golgi -> RER (d) nucleus -> RER -> vesicle -> Golgi ...
... Which of the following best sequences the cell parts involved in making a protein? (a) nucleus -> Golgi -> vesicle -> RER (b) RER -> vesicle -> Golgi -> nucleus (c) nucleus -> ribosome -> Golgi -> RER (d) nucleus -> RER -> vesicle -> Golgi ...
Cell Structure & Function
... substances in the cell into smaller molecules. Vesicles are small cell organelles that are mostly found in the cells. ...
... substances in the cell into smaller molecules. Vesicles are small cell organelles that are mostly found in the cells. ...
Click here - Zellchip Technologies Inc.
... comprising fluid channels, fluid ports, and a cell retention structure. It is suitable for isolating most human or animal individual cells, Interpretation of the results can only be made by qualified and trained personnel. ...
... comprising fluid channels, fluid ports, and a cell retention structure. It is suitable for isolating most human or animal individual cells, Interpretation of the results can only be made by qualified and trained personnel. ...
Transport across cellular membranes
... When active transport of one solute indirectly drives transport of another Example Plants commonly use the proton gradient generated by proton pumps to drive transport of nutrients into the cell ...
... When active transport of one solute indirectly drives transport of another Example Plants commonly use the proton gradient generated by proton pumps to drive transport of nutrients into the cell ...
Cryoelectron Tomography: Implications for Actin Cytoskeleton
... verity of postfixation, dehydration, and embedding required for thin-section electron microscopy.1 Single filaments or more loosely interconnected filament networks, either purified or examined in situ, are very sensitive to these procedures. Meshworks of actin filaments found in lamellipodia are pa ...
... verity of postfixation, dehydration, and embedding required for thin-section electron microscopy.1 Single filaments or more loosely interconnected filament networks, either purified or examined in situ, are very sensitive to these procedures. Meshworks of actin filaments found in lamellipodia are pa ...
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)↑ ↑ ↑ ↑ ↑ ↑