chapter39 - FacStaff Home Page for CBU
... This hypothesis attempts to explain the role of auxin in cell elongation. It proposes that... 1. IAA produces or activates additional proton pumps. 2. The pumping of protons into the extracellular matrix causes K+ and other positive ions to enter the cell. 3. This increase in solutes brings an influ ...
... This hypothesis attempts to explain the role of auxin in cell elongation. It proposes that... 1. IAA produces or activates additional proton pumps. 2. The pumping of protons into the extracellular matrix causes K+ and other positive ions to enter the cell. 3. This increase in solutes brings an influ ...
Membrane Transport
... • Pinocytosis – cell drinking • Phagocytosis – cell eating • Exocytosis - Movement out of cell Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
... • Pinocytosis – cell drinking • Phagocytosis – cell eating • Exocytosis - Movement out of cell Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
Elodea Osmosis Lab
... 2. Locate the cell of your dreams at 40X. Increase the magnification to 100X, then to 400X. Decide which view (100X or 400X) works best for you, and record your observations (write and draw) in the appropriate spaces on the attached Elodea Lab Sheet. Be sure to label the cell wall, cytoplasm, and ch ...
... 2. Locate the cell of your dreams at 40X. Increase the magnification to 100X, then to 400X. Decide which view (100X or 400X) works best for you, and record your observations (write and draw) in the appropriate spaces on the attached Elodea Lab Sheet. Be sure to label the cell wall, cytoplasm, and ch ...
File
... • Amount of solute surrounding cell is low (low solute = high water) • Water moves INTO the cell to balance concentrations of water on both sides of membrane • Cell swells (animal cells could burst) • EX: pure water ...
... • Amount of solute surrounding cell is low (low solute = high water) • Water moves INTO the cell to balance concentrations of water on both sides of membrane • Cell swells (animal cells could burst) • EX: pure water ...
Document
... As the basic units of life, individual cells have needs and functions that are similar to those of multi-cellular organisms. Among these functions cells have to be able to capture and release energy, dispose of wastes, reproduce and some of them move. The microscopic world of cells is very diverse a ...
... As the basic units of life, individual cells have needs and functions that are similar to those of multi-cellular organisms. Among these functions cells have to be able to capture and release energy, dispose of wastes, reproduce and some of them move. The microscopic world of cells is very diverse a ...
What are Protists?
... way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the Euglena tr ...
... way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the Euglena tr ...
Cell Membrane and Transport
... and molecules from a high concentration to a low concentration. Diffusion across a cell membrane Some molecules and ions are able to pass through cell membranes. The membrane is permeable to these substances. However, some substances cannot pass through cell membranes, so the membtanes are said to b ...
... and molecules from a high concentration to a low concentration. Diffusion across a cell membrane Some molecules and ions are able to pass through cell membranes. The membrane is permeable to these substances. However, some substances cannot pass through cell membranes, so the membtanes are said to b ...
Introduction to Microbiology
... and usually have other sugars and D-alanine attached .There are two types of teichoic acids: wall teichoic acid (WTA), covalently linked to peptidoglycan, and membrane teichoic acid(MTA), covalently linked to membrane glycolipid. Because the latter are intimately associated with lipids, they have be ...
... and usually have other sugars and D-alanine attached .There are two types of teichoic acids: wall teichoic acid (WTA), covalently linked to peptidoglycan, and membrane teichoic acid(MTA), covalently linked to membrane glycolipid. Because the latter are intimately associated with lipids, they have be ...
3.2 Cell Organelles
... • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes – made of microtubules. – Centrioles help divide DNA. – Centrioles form cilia and flagella. ...
... • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes – made of microtubules. – Centrioles help divide DNA. – Centrioles form cilia and flagella. ...
Synthesis and Sidedness of Membranes
... • A plant cell in a hypotonic solution swells until the wall opposes uptake; the cell is now turgid (firm) • If a plant cell and its surroundings are isotonic, there is no net movement of water into the cell; the cell becomes flaccid (limp), and the plant may wilt ...
... • A plant cell in a hypotonic solution swells until the wall opposes uptake; the cell is now turgid (firm) • If a plant cell and its surroundings are isotonic, there is no net movement of water into the cell; the cell becomes flaccid (limp), and the plant may wilt ...
Conservation of Cell Order in Desiccated Mesophyll of
... the volume of the cells returned to the normal hydrated state. We note, however, that the situation might be different with some mosses such as Tortula, since Tucker, Costerton and Bewley (1975), using Nomarski optics, found cells in the dehydrated state to be highly plasmolysed. Gaff et al. (1976) ...
... the volume of the cells returned to the normal hydrated state. We note, however, that the situation might be different with some mosses such as Tortula, since Tucker, Costerton and Bewley (1975), using Nomarski optics, found cells in the dehydrated state to be highly plasmolysed. Gaff et al. (1976) ...
06. Euglena Notes
... the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like stru ...
... the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like stru ...
![MITOSIS WORKSHEET - New Page 1 [bs079.k12.sd.us]](http://s1.studyres.com/store/data/014668413_1-30813973b0cb9de17ced950a5cb16263-300x300.png)
MITOSIS WORKSHEET - New Page 1 [bs079.k12.sd.us]
... A. What happens to the chromosomes? B. What happens to the spindle fibers? C. What happens to the cytoplasm? D. What happens to the nuclear membrane? E. What is the end result? ...
... A. What happens to the chromosomes? B. What happens to the spindle fibers? C. What happens to the cytoplasm? D. What happens to the nuclear membrane? E. What is the end result? ...
Is the living cell simple or complex?
... TEKS 7G: Analyze and evaluate scientific explanations concerning the complexity of the cell. ...
... TEKS 7G: Analyze and evaluate scientific explanations concerning the complexity of the cell. ...
Lecture 4
... 2. Outer membrane - part of the cell wall. • Forms the periplasm between the outer membrane and the plasma membrane. • Outer membrane composition is distinct from that of the cytoplasmic membrane • Contains a unique component, lipopolysaccharide (LPS or endotoxin), which is toxic to animals. – O pol ...
... 2. Outer membrane - part of the cell wall. • Forms the periplasm between the outer membrane and the plasma membrane. • Outer membrane composition is distinct from that of the cytoplasmic membrane • Contains a unique component, lipopolysaccharide (LPS or endotoxin), which is toxic to animals. – O pol ...
Membranes, Transport and Macromolecules TEST 2 KEY
... D. The cell membrane controls the movement of molecules into and out of the cell. 28. The diagram below represents movement of a large molecule across a membrane. Which process is best represented in this diagram? A. active transport B. diffusion C. protein building D. gene manipulation 29. In the d ...
... D. The cell membrane controls the movement of molecules into and out of the cell. 28. The diagram below represents movement of a large molecule across a membrane. Which process is best represented in this diagram? A. active transport B. diffusion C. protein building D. gene manipulation 29. In the d ...
Membranes - OnCourse
... Hypotonic – the fluid outside the cell is less concentrated. Water moves into the cell the cell swells. Hypertonic – the fluid outside the cell is more concentrated. Water moves out of the cell, the cell shrinks. Isotonic- water moves into and out of the cell at the same rate. The cell stays the sam ...
... Hypotonic – the fluid outside the cell is less concentrated. Water moves into the cell the cell swells. Hypertonic – the fluid outside the cell is more concentrated. Water moves out of the cell, the cell shrinks. Isotonic- water moves into and out of the cell at the same rate. The cell stays the sam ...
Cell Structure All living things are made of cells. Biology is the study
... Cell Wall: Plant cell membranes are surrounded by a wall which is made of cellulose fibres. Plant cell walls provide structure to the cell and to the plant. The cell wall allows the cell to fill with water without bursting. Plant cell walls are fully permeable. Chloroplasts: As well as mitochondria, ...
... Cell Wall: Plant cell membranes are surrounded by a wall which is made of cellulose fibres. Plant cell walls provide structure to the cell and to the plant. The cell wall allows the cell to fill with water without bursting. Plant cell walls are fully permeable. Chloroplasts: As well as mitochondria, ...
Cell Organelles
... usually in plant cells Many smaller vacuoles in animal cells Storage container for water, food, enzymes, wastes, pigments, etc. What type of microscope may have been used to take this picture? ...
... usually in plant cells Many smaller vacuoles in animal cells Storage container for water, food, enzymes, wastes, pigments, etc. What type of microscope may have been used to take this picture? ...
Cell wall
... • Phagocytosis: pseudopods extend and engulf particles • Pinocytosis: membrane folds inward, bringing in fluid and dissolved substances ...
... • Phagocytosis: pseudopods extend and engulf particles • Pinocytosis: membrane folds inward, bringing in fluid and dissolved substances ...
Jello 3-D Animal Cell Craft
... cell wall - a thick, rigid membrane that surrounds a plant cell. This layer of cellulose fiber gives the cell most of its support and structure. The cell wall also bonds with other cell walls to form the structure of the plant. chloroplast - an elongated or disc-shaped organelle containing chlorophy ...
... cell wall - a thick, rigid membrane that surrounds a plant cell. This layer of cellulose fiber gives the cell most of its support and structure. The cell wall also bonds with other cell walls to form the structure of the plant. chloroplast - an elongated or disc-shaped organelle containing chlorophy ...
CELL PARTS Chapter 4
... http://media.pearsoncmg.com/bc/bc_campbell_essentials_2/cipl/04/HTML/source/04-17-chloroplast-nl.htm ...
... http://media.pearsoncmg.com/bc/bc_campbell_essentials_2/cipl/04/HTML/source/04-17-chloroplast-nl.htm ...
Prentice Hall Review PPT. Ch. 7
... Answers may include: monitor (interfaces with the computer’s environment), software (instructions for how to carry out different jobs), CPU (directs the computer's activities), recycle bin or trash can (storage area for wastes), and so on. 2. How do the functions of these computer parts correspond t ...
... Answers may include: monitor (interfaces with the computer’s environment), software (instructions for how to carry out different jobs), CPU (directs the computer's activities), recycle bin or trash can (storage area for wastes), and so on. 2. How do the functions of these computer parts correspond t ...
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)↑ ↑ ↑ ↑ ↑ ↑