as a PDF
... Time-lapsed confocal imaging of Arabidopsis epidermal cells expressing GFP-tubulin fusion proteins (n = 33 cells, 4.1min average duration at 3.85sec intervals) revealed discrete sites of apparent microtubule initiation at the cell cortex (Fig. 1A,B). Microtubules that depolymerized to visible comple ...
... Time-lapsed confocal imaging of Arabidopsis epidermal cells expressing GFP-tubulin fusion proteins (n = 33 cells, 4.1min average duration at 3.85sec intervals) revealed discrete sites of apparent microtubule initiation at the cell cortex (Fig. 1A,B). Microtubules that depolymerized to visible comple ...
Centrosome Dynamics during the Meiotic Progression in the Mouse
... observed at metaphase-I and -II occurs when both maturation promoting factor and cytostatic factor levels are thought to be elevated. Purified centrosomes injected into unactivated metaphaseII-arrested Xenopus oocytes do not support microtubule growth. However, when these eggs are artificially activ ...
... observed at metaphase-I and -II occurs when both maturation promoting factor and cytostatic factor levels are thought to be elevated. Purified centrosomes injected into unactivated metaphaseII-arrested Xenopus oocytes do not support microtubule growth. However, when these eggs are artificially activ ...
Golgi Apparatus
... Outer membrane is continuous with the rough ER and is studded with ribosomes Inner membrane is lined with the nuclear lamina, which maintains the shape of the nucleus Pore complex regulates transport of large molecules into and out of the nucleus ...
... Outer membrane is continuous with the rough ER and is studded with ribosomes Inner membrane is lined with the nuclear lamina, which maintains the shape of the nucleus Pore complex regulates transport of large molecules into and out of the nucleus ...
Looking for cytoskeleton-damaging agents
... IF network in a detergent-extracted Panc 1 cell visualized at a magnification of 50,000. Filaments in some depth are clearly visible at good contrast in the secondary electron tomogram. The graph extracted from the tomogram exhibits a genuinely 3D structure. (a) SEM image at 0◦ tilt. (b) Horizontal ...
... IF network in a detergent-extracted Panc 1 cell visualized at a magnification of 50,000. Filaments in some depth are clearly visible at good contrast in the secondary electron tomogram. The graph extracted from the tomogram exhibits a genuinely 3D structure. (a) SEM image at 0◦ tilt. (b) Horizontal ...
The Effects of Nocodazole on Amoeba Pseudopod Counts
... since amoebae are very active and motile, for this experiment we concluded that a pseudopod must be at least 26 microns in length and 10 microns wide with two defined shoulders. A shoulder is a defined by an angle that is greater than 45 degrees from the cell body. Pseudopods are recognizable usuall ...
... since amoebae are very active and motile, for this experiment we concluded that a pseudopod must be at least 26 microns in length and 10 microns wide with two defined shoulders. A shoulder is a defined by an angle that is greater than 45 degrees from the cell body. Pseudopods are recognizable usuall ...
Centrosome - English at the Shore Spot
... http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Cytoskeleton.html#microtubules ...
... http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Cytoskeleton.html#microtubules ...
Animal-Plant Cell Activity
... Animal and Plant Cell Activity 1: The Parts of the Cell and Their Function After reading the descriptions of the cell organelles, choose which department(s) each organelle belongs in from the list of departments below. Once you have determined the department, explain why. Also, determine whether the ...
... Animal and Plant Cell Activity 1: The Parts of the Cell and Their Function After reading the descriptions of the cell organelles, choose which department(s) each organelle belongs in from the list of departments below. Once you have determined the department, explain why. Also, determine whether the ...
GOLGI APPARATUS
... - MANY LYS. BUD FROM GOLGI, INITIALLY FROM ENZYMES PRODUCED ON ROUGH ER - HELPS W/ PHAGOCYTOSIS- CELL INGESTS A FOOD PARTICLE. THIS NEW FOOD VESICLE FUSES W/ LYS. & GETS DIGESTED. - EXAMPLE- TADPOLE TO FROG. TAIL GETS DIGESTED BY LYSOSOMES - TAY-SACHS DISEASE- LIPID-DIGESTING ENZYME IS MISSING OR I ...
... - MANY LYS. BUD FROM GOLGI, INITIALLY FROM ENZYMES PRODUCED ON ROUGH ER - HELPS W/ PHAGOCYTOSIS- CELL INGESTS A FOOD PARTICLE. THIS NEW FOOD VESICLE FUSES W/ LYS. & GETS DIGESTED. - EXAMPLE- TADPOLE TO FROG. TAIL GETS DIGESTED BY LYSOSOMES - TAY-SACHS DISEASE- LIPID-DIGESTING ENZYME IS MISSING OR I ...
Chapter 12
... Note that: - Genes are present in structures called chromosomes - Each eukaryotic cell has a nucleus (Chapter 6) containing a species-specific number of chromosomes. The human nucleus contains 46 chromosomes 23 from egg, 23 from sperm that fertilize the egg. This means that there are two of each ...
... Note that: - Genes are present in structures called chromosomes - Each eukaryotic cell has a nucleus (Chapter 6) containing a species-specific number of chromosomes. The human nucleus contains 46 chromosomes 23 from egg, 23 from sperm that fertilize the egg. This means that there are two of each ...
The Cytoplasm The Cytosol a Viscous watery fluid which all the
... Sorts and packages proteins; vesicles delivered to other locations Cytoskeleton Provides an important structural framework Nucleus Cell function and reproduction Nucleoli Gives rigidity and structure Lysosomes Immu ...
... Sorts and packages proteins; vesicles delivered to other locations Cytoskeleton Provides an important structural framework Nucleus Cell function and reproduction Nucleoli Gives rigidity and structure Lysosomes Immu ...
Energy Organelles & the Cytoskeleton
... Microtubules grow out from centrosomes “Microtubule-organizing center” Animal cells contain a pair of centrioles found at right angles to each other Each composed of 9 sets of triplet microtubules arranged in a ring Before the cell divides the centrioles replicate Help in organizing microtubules but ...
... Microtubules grow out from centrosomes “Microtubule-organizing center” Animal cells contain a pair of centrioles found at right angles to each other Each composed of 9 sets of triplet microtubules arranged in a ring Before the cell divides the centrioles replicate Help in organizing microtubules but ...
Notes-Organelles - Svetz-wiki
... --thylakoids are the individual disk shaped compartments that make up the grana (stack of thylakoids) --stroma is the fluid surrounded the thylakoids *Chloroplasts are a type of plastid Chromoplasts – red, yellow and orange pigment Leucoplasts – colorless (potatoes) ...
... --thylakoids are the individual disk shaped compartments that make up the grana (stack of thylakoids) --stroma is the fluid surrounded the thylakoids *Chloroplasts are a type of plastid Chromoplasts – red, yellow and orange pigment Leucoplasts – colorless (potatoes) ...
Homologous chromosomes Homologous chromosomes Sister
... opposite ends of the cell. The spindle passes through one tunnel in the intact nuclear envelope. Kinetochore microtubules form between kinetochores on the chromosomes and the spindle poles and pull the chromosomes to each pole. ...
... opposite ends of the cell. The spindle passes through one tunnel in the intact nuclear envelope. Kinetochore microtubules form between kinetochores on the chromosomes and the spindle poles and pull the chromosomes to each pole. ...
Document
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Prokaryotes No nucleus, usually have single circular chromosome. After DNA is replicated, it is partitioned in the cell. After cell elongation, FtsZ protein assembles into a ring and facilitates septation a ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Prokaryotes No nucleus, usually have single circular chromosome. After DNA is replicated, it is partitioned in the cell. After cell elongation, FtsZ protein assembles into a ring and facilitates septation a ...
Bacterial cell Septum Bacterial chromosome: Double
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Prokaryotes No nucleus, usually have single circular chromosome. After DNA is replicated, it is partitioned in the cell. After cell elongation, FtsZ protein assembles into a ring and facilitates septation a ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Prokaryotes No nucleus, usually have single circular chromosome. After DNA is replicated, it is partitioned in the cell. After cell elongation, FtsZ protein assembles into a ring and facilitates septation a ...
Lecture #12 Date
... membrane material. Eukaryotic cilia and flagella have an arrangement of microtubules, known as the 9 + 2 arrangement (9 pairs of microtubules (doublets) around the circumference plus 2 central microtubules). "Spokes" radiate from the microtubules towards the central microtubules to help maintain the ...
... membrane material. Eukaryotic cilia and flagella have an arrangement of microtubules, known as the 9 + 2 arrangement (9 pairs of microtubules (doublets) around the circumference plus 2 central microtubules). "Spokes" radiate from the microtubules towards the central microtubules to help maintain the ...
Cell Study Guide - Miss Gleason`s Science
... diffusion: from area of ___________ concentration to area of low concentration to reach ...
... diffusion: from area of ___________ concentration to area of low concentration to reach ...
Notes - Wilson`s Web Page
... _________ (9 pairs of microtubules and two central microtubules) move as the pairs of tubules ___________ each other. Both have _____________________ at base in cytoplasm Same circular arrangement of microtubule triplets as centrioles and are belied to be derived from them. Initiates polym ...
... _________ (9 pairs of microtubules and two central microtubules) move as the pairs of tubules ___________ each other. Both have _____________________ at base in cytoplasm Same circular arrangement of microtubule triplets as centrioles and are belied to be derived from them. Initiates polym ...
Eukaryotic Organelles
... Golgi modify proteins and package them into new vesicles Vesicles fuse with the plasma membrane to release proteins outside the cell 5. Vesicles containing enzymes that remain inside the cell form ...
... Golgi modify proteins and package them into new vesicles Vesicles fuse with the plasma membrane to release proteins outside the cell 5. Vesicles containing enzymes that remain inside the cell form ...
word
... How are lipids synthesized – from cytosolic aqueous-soluble precursors and inserted into membranes Topology of compartments – from lumen of ER to Golgi to outside of cell From nucleus to where? General concepts: Consider integral membrane protein in the ER, versus a secreted protein or a nuclear pro ...
... How are lipids synthesized – from cytosolic aqueous-soluble precursors and inserted into membranes Topology of compartments – from lumen of ER to Golgi to outside of cell From nucleus to where? General concepts: Consider integral membrane protein in the ER, versus a secreted protein or a nuclear pro ...
Electrical Vibrations of Yeast Cell Membrane
... Cytoskeleton is organizing network of the eukaryotic cell, which helps the cell to move, to maintain its shape and to transport molecules and cellular organelles. Cytoskeleton is comprised of three types of protein filaments: actin filaments (microfilaments), intermediate filaments and microtubules ...
... Cytoskeleton is organizing network of the eukaryotic cell, which helps the cell to move, to maintain its shape and to transport molecules and cellular organelles. Cytoskeleton is comprised of three types of protein filaments: actin filaments (microfilaments), intermediate filaments and microtubules ...
Control of stem cell fate by cytoskeletal motors during
... microtubules characteristic of late mitosis, is asymmetric. This spindle asymmetry is in turn “read” by a molecular motor, the kinesin Klp98A, to carry endosomes containing cell fate determinants into only one of the two daughter cells. Project: This PhD project aims at understandin ...
... microtubules characteristic of late mitosis, is asymmetric. This spindle asymmetry is in turn “read” by a molecular motor, the kinesin Klp98A, to carry endosomes containing cell fate determinants into only one of the two daughter cells. Project: This PhD project aims at understandin ...
Microtubule
Microtubules (micro- + tube + -ule) are a component of the cytoskeleton, found throughout the cytoplasm. These tubular polymers of tubulin can grow as long as 50 micrometres and are highly dynamic. The outer diameter of a microtubule is about 24 nm while the inner diameter is about 12 nm. They are found in eukaryotic cells and are formed by the polymerization of a dimer of two globular proteins, alpha and beta tubulin.Microtubules are very important in a number of cellular processes. They are involved in maintaining the structure of the cell and, together with microfilaments and intermediate filaments, they form the cytoskeleton. They also make up the internal structure of cilia and flagella.They provide platforms for intracellular transport and are involved in a variety of cellular processes, including the movement of secretory vesicles, organelles, and intracellular macromolecular assemblies (see entries for dynein and kinesin). They are also involved in chromosome separation (mitosis and meiosis), and are the major constituents of mitotic spindles, which are used to pull apart eukaryotic chromosomes.Microtubules are nucleated and organized by microtubule organizing centers (MTOCs), such as the centrosome found in the center of many animal cells or the basal bodies found in cilia and flagella, or the spindle pole bodies found in fungi.There are many proteins that bind to microtubules, including the motor proteins kinesin and dynein, severing proteins like katanin, and other proteins important for regulating microtubule dynamics.