Lecture 8
... • The cytoskeleton is dynamic, dismantling يتفككin one part and reassembling يتجمعin another to change cell shape. • The cytoskeleton also plays a major role in cell motility حركة الخليةby interacting with motor proteins. البروتين الحركي. • Motor proteins are able to move along the surfa ...
... • The cytoskeleton is dynamic, dismantling يتفككin one part and reassembling يتجمعin another to change cell shape. • The cytoskeleton also plays a major role in cell motility حركة الخليةby interacting with motor proteins. البروتين الحركي. • Motor proteins are able to move along the surfa ...
The Cell Organelles
... • The cytoskeleton is dynamic, dismantling يتفككin one part and reassembling يتجمعin another to change cell shape. • The cytoskeleton also plays a major role in cell motility حركة الخليةby interacting with motor proteins. البروتين الحركي. • Motor proteins are able to move along the surfa ...
... • The cytoskeleton is dynamic, dismantling يتفككin one part and reassembling يتجمعin another to change cell shape. • The cytoskeleton also plays a major role in cell motility حركة الخليةby interacting with motor proteins. البروتين الحركي. • Motor proteins are able to move along the surfa ...
Cell Study Guide - Biology Junction
... FROM EXISTING CELLS Know the people responsible for the cell theory. VIRCHOW, SCHLEIDEN, & SCHWANN How do cells compare is size? PLANT CELL > ANIMAL CELL > BACTERIAL CELL CELL MEMBRANE: What are cell membranes made of? PHOSPHOLIPIDS & PROTEINS How are membranes arranged? PHOSPHOLIPIDS make a BILAYER ...
... FROM EXISTING CELLS Know the people responsible for the cell theory. VIRCHOW, SCHLEIDEN, & SCHWANN How do cells compare is size? PLANT CELL > ANIMAL CELL > BACTERIAL CELL CELL MEMBRANE: What are cell membranes made of? PHOSPHOLIPIDS & PROTEINS How are membranes arranged? PHOSPHOLIPIDS make a BILAYER ...
Osmosis Virtual Lab Logon to http://www.glencoe.com/sites
... Read the information that is listed in the box on the left of your computer screen. Use it to answer the following questions. 1. What is a selectively permeable membrane? ...
... Read the information that is listed in the box on the left of your computer screen. Use it to answer the following questions. 1. What is a selectively permeable membrane? ...
Cells and Cell Theory
... A mixture of chemicals Carries the organelles. It is and water flowing the area where cell work is around the cell ...
... A mixture of chemicals Carries the organelles. It is and water flowing the area where cell work is around the cell ...
Science - B1 Cell Structure and Transport in and out of Cells
... Microscopy – which microscope? What do you want to see? • Dead or alive? • Surface or cross section? • Build up a 3D model? • Resolution? • Avoid removing moisture? ...
... Microscopy – which microscope? What do you want to see? • Dead or alive? • Surface or cross section? • Build up a 3D model? • Resolution? • Avoid removing moisture? ...
1.2 microscopes and cell parts
... between a plant and animal cell is the size of the vacuoles. Plant cells have a large central vacuole, which still acts as a storage area. ...
... between a plant and animal cell is the size of the vacuoles. Plant cells have a large central vacuole, which still acts as a storage area. ...
Science
... Compare and contrast between plant and animal cells and other unicellular organisms such as bacteria. Link the position of the cell organelles and specialised cells to their position in an organism. Link how different muscles contract and relax. ...
... Compare and contrast between plant and animal cells and other unicellular organisms such as bacteria. Link the position of the cell organelles and specialised cells to their position in an organism. Link how different muscles contract and relax. ...
Flipbook - local.brookings.k12.sd.us
... •____________________- stick on inside or outside surface •____________________- go part way or all the way through • _________________ - recognize “self” • _______________ PROTEINS- move molecules across membrane ...
... •____________________- stick on inside or outside surface •____________________- go part way or all the way through • _________________ - recognize “self” • _______________ PROTEINS- move molecules across membrane ...
Bell Work: What occurs during facilitated diffusion? Why is it
... Transport Proteins Span the membrane, change shape when they bind to molecules. Some bind to only one type of molecule, others to more than one type of molecule. Key Feature All use chemical energy to move a substance against the gradient. Most use ATP. Example: Neurons need to have a higher ...
... Transport Proteins Span the membrane, change shape when they bind to molecules. Some bind to only one type of molecule, others to more than one type of molecule. Key Feature All use chemical energy to move a substance against the gradient. Most use ATP. Example: Neurons need to have a higher ...
How It Looks
... –Inner provides lots of surface area for chemical reactions to take place. –Shaped like a kidney bean. ...
... –Inner provides lots of surface area for chemical reactions to take place. –Shaped like a kidney bean. ...
Name_________________________ 7.1, 7.2 Cell Structure and
... 12. Which structure makes proteins using coded instructions that come from the nucleus? (p. 200) ___________________________________________________________________________ 13. Which sequence correctly traces the path of a protein in the cell? (pp. 200-201) _________________________________________ ...
... 12. Which structure makes proteins using coded instructions that come from the nucleus? (p. 200) ___________________________________________________________________________ 13. Which sequence correctly traces the path of a protein in the cell? (pp. 200-201) _________________________________________ ...
Name
... 11. ________________________ has polar and non-polar parts and makes up the majority of the cell membrane. 12. The material that gets dissolved in a solution is called the ________________. 13. _________________ is the material that does the dissolving in a solution. 14. Identification (ID) tags tha ...
... 11. ________________________ has polar and non-polar parts and makes up the majority of the cell membrane. 12. The material that gets dissolved in a solution is called the ________________. 13. _________________ is the material that does the dissolving in a solution. 14. Identification (ID) tags tha ...
Exam #2
... B) eukaryotic cilia C) eukaryotic flagella D) none of the above, all are >200 nm in diameter 14. Maltose enters the cell with the help of three proteins: a periplasmic binding protein, a channel protein in the membrane, and an ATP kinase on the inside of the cell. A) B) C) D) E) ...
... B) eukaryotic cilia C) eukaryotic flagella D) none of the above, all are >200 nm in diameter 14. Maltose enters the cell with the help of three proteins: a periplasmic binding protein, a channel protein in the membrane, and an ATP kinase on the inside of the cell. A) B) C) D) E) ...
Other types of transport
... • Your nerve cells have lots of protein pumps to move ions across the cell membrane. • This is how signals travel through your nervous system. ...
... • Your nerve cells have lots of protein pumps to move ions across the cell membrane. • This is how signals travel through your nervous system. ...
MYP Science 9 - cis myp science
... dilute solution. It is fully permeable though, enabling water and other substances to pass through it. ...
... dilute solution. It is fully permeable though, enabling water and other substances to pass through it. ...
7CPPTSRENJRCO - Cell-as-a
... Rough ER contains proteins and they are transported through out the cell. Mail box contains mails and they are transported through out the world. ...
... Rough ER contains proteins and they are transported through out the cell. Mail box contains mails and they are transported through out the world. ...
Cells
... The Golgi body can be thought of as a mail room. They receive proteins, package them, and then distribute them to other parts of the cell. Chloroplasts are only found in plant cells. Chloroplasts capture energy from the sunlight and use it to produce food for the cell. A vacuole is a water fille ...
... The Golgi body can be thought of as a mail room. They receive proteins, package them, and then distribute them to other parts of the cell. Chloroplasts are only found in plant cells. Chloroplasts capture energy from the sunlight and use it to produce food for the cell. A vacuole is a water fille ...
Module A Assessment Anchor A.4 Homeostasis and Transport I
... c. Describe how membrane-bound cellular organelles facilitate the transport of materials within a cell i. Golgi apparatus creates vesicles 1. Vesicles will move materials within the cell 2. Vesicles will fuse with membrane to move materials out of the cell ...
... c. Describe how membrane-bound cellular organelles facilitate the transport of materials within a cell i. Golgi apparatus creates vesicles 1. Vesicles will move materials within the cell 2. Vesicles will fuse with membrane to move materials out of the cell ...
THE CELL
... You have probably heard that you and every other living thing are made out of cells. But: Do all cells look the same? If not, why do they look different? How do materials travel through your cell? Why are we made up of so many cells instead of just a few? Why are cells surrounded by membrane ...
... You have probably heard that you and every other living thing are made out of cells. But: Do all cells look the same? If not, why do they look different? How do materials travel through your cell? Why are we made up of so many cells instead of just a few? Why are cells surrounded by membrane ...
notes
... • Limited in size by the ratio of surface area to volume • As a cell gets bigger, it’s volume increases faster than surface area • Bigger cells need more substances (water, oxygen, etc.) but don’t have enough surface area to let everything in/out ...
... • Limited in size by the ratio of surface area to volume • As a cell gets bigger, it’s volume increases faster than surface area • Bigger cells need more substances (water, oxygen, etc.) but don’t have enough surface area to let everything in/out ...
Cell membrane
... • Both help cells move (which, btw, most cells don’t) • Found on cell surface, but usually one or the other, not both. • Cilia – Short hair-like structures – Usually many of them ...
... • Both help cells move (which, btw, most cells don’t) • Found on cell surface, but usually one or the other, not both. • Cilia – Short hair-like structures – Usually many of them ...
Cell Discovery
... • The smallest cell in the human body? male sperm (175,000 sperm cells weigh as much as a single egg cell) ...
... • The smallest cell in the human body? male sperm (175,000 sperm cells weigh as much as a single egg cell) ...
NAME DATE ______ PERIOD _____
... MULTIPLE CHOICE: Circle all that are TRUE. There may be MORE THAN ONE correct answer. 1. Which of the following is TRUE of a cell membranes? A. Cell membranes allow ALL substances to pass through easily B. It is selectively permeable so only certain molecules can pass through it. C. It acts more lik ...
... MULTIPLE CHOICE: Circle all that are TRUE. There may be MORE THAN ONE correct answer. 1. Which of the following is TRUE of a cell membranes? A. Cell membranes allow ALL substances to pass through easily B. It is selectively permeable so only certain molecules can pass through it. C. It acts more lik ...
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)↑ ↑ ↑ ↑ ↑ ↑