Comparing Prokaryotic and Eukaryotic Cells Cell walls of Bacteria
... (a) Polar (aka monotrichous) ...
... (a) Polar (aka monotrichous) ...
Ch 3 Notes Outline
... Micrographs are: The transmission electron microscope: The scanning electron microscope: 3.2 How Cells are Organized Biologists classify cells into two broad categories: Both have: Internal Structure of Eukaryotic Cells: Evolutionary History of the Animal Cell The first cells to arise were: ________ ...
... Micrographs are: The transmission electron microscope: The scanning electron microscope: 3.2 How Cells are Organized Biologists classify cells into two broad categories: Both have: Internal Structure of Eukaryotic Cells: Evolutionary History of the Animal Cell The first cells to arise were: ________ ...
Structures external to the Cell Wall:
... 4- Amphitrichous (one flagellum at each side of cell). ...
... 4- Amphitrichous (one flagellum at each side of cell). ...
Lecture 5 – Prokaryotic cell structures continued
... to the cell wall and the cytoplasmic membrane. Unlike eukaryotic flagella, the bacterial flagellum has no internal fibrils and does not flex. Instead, the basal body acts as a molecular motor, enabling the flagellum to rotate and propell the bacterium through the surrounding fluid. In fact, the ...
... to the cell wall and the cytoplasmic membrane. Unlike eukaryotic flagella, the bacterial flagellum has no internal fibrils and does not flex. Instead, the basal body acts as a molecular motor, enabling the flagellum to rotate and propell the bacterium through the surrounding fluid. In fact, the ...
Ch 3 - Fort Bend ISD
... • Do NOT have a membrane surrounding genetic material, therefore, can make proteins simultaneously when reading genetic code. • Lack some structures found in Eukaryotic cells ...
... • Do NOT have a membrane surrounding genetic material, therefore, can make proteins simultaneously when reading genetic code. • Lack some structures found in Eukaryotic cells ...
Systems Microbiology 1
... organisms allows space for many enzymes to reside outside the cell membrane such as chemo receptors and transporters, as well as porins on through the outer-membrane. At the same time, endotoxins due to lipid A of LPS are present in gram-negative organisms. ...
... organisms allows space for many enzymes to reside outside the cell membrane such as chemo receptors and transporters, as well as porins on through the outer-membrane. At the same time, endotoxins due to lipid A of LPS are present in gram-negative organisms. ...
Some Observations on the Flagella and
... the flagellar strands were attached. Houwink (1953) observed a small hook at the base of each flagellar strand similar to those on the flagella of other bacteria. Blepharoplasts have, however, been observed in other bacterial groups, notably Proteus (Houwink & van Iterson, 1950), Vibrio (van Iterson ...
... the flagellar strands were attached. Houwink (1953) observed a small hook at the base of each flagellar strand similar to those on the flagella of other bacteria. Blepharoplasts have, however, been observed in other bacterial groups, notably Proteus (Houwink & van Iterson, 1950), Vibrio (van Iterson ...
Some Observations on the Flagella and
... the flagellar strands were attached. Houwink (1953) observed a small hook at the base of each flagellar strand similar to those on the flagella of other bacteria. Blepharoplasts have, however, been observed in other bacterial groups, notably Proteus (Houwink & van Iterson, 1950), Vibrio (van Iterson ...
... the flagellar strands were attached. Houwink (1953) observed a small hook at the base of each flagellar strand similar to those on the flagella of other bacteria. Blepharoplasts have, however, been observed in other bacterial groups, notably Proteus (Houwink & van Iterson, 1950), Vibrio (van Iterson ...
Life Science
... The Cytoskeleton Cytoskeleton Structure Composed of a network of protein fibers called microfilaments, intermediate filaments, and microtubules. Cytoskeleton Function 1. gives cells support and helps the cell keep its shape 2. anchors organelles into a certain position or allows them to move aroun ...
... The Cytoskeleton Cytoskeleton Structure Composed of a network of protein fibers called microfilaments, intermediate filaments, and microtubules. Cytoskeleton Function 1. gives cells support and helps the cell keep its shape 2. anchors organelles into a certain position or allows them to move aroun ...
Study guide
... Cilia and flagella Study Questions (2 pages) 1. State the three major principles of the cell theory. 2. Why is there a limit to cell size? Describe two types of problems that would be encountered if cell was significantly larger than they actually are. 3. What four features of cells do all organisms ...
... Cilia and flagella Study Questions (2 pages) 1. State the three major principles of the cell theory. 2. Why is there a limit to cell size? Describe two types of problems that would be encountered if cell was significantly larger than they actually are. 3. What four features of cells do all organisms ...
Chapter 29
... • Most diverse of the four eukaryotic kingdoms • United on the basis that they are not fungi, plants, or animals • Vary considerably in every other aspect – Unicellular, colonial, and multicellular groups – Most are microscopic but some are huge – All symmetries – All types of nutrition ...
... • Most diverse of the four eukaryotic kingdoms • United on the basis that they are not fungi, plants, or animals • Vary considerably in every other aspect – Unicellular, colonial, and multicellular groups – Most are microscopic but some are huge – All symmetries – All types of nutrition ...
Cell Organelle Packet
... For each of the organelles listed below, briefly describe the function, provide a drawing of the structure, and tell if they are found in plant cells, animal cells or both. Do not copy any definitions, use your own, but you may include a cool image you found elsewhere. vesicles cilia lysosome nucleo ...
... For each of the organelles listed below, briefly describe the function, provide a drawing of the structure, and tell if they are found in plant cells, animal cells or both. Do not copy any definitions, use your own, but you may include a cool image you found elsewhere. vesicles cilia lysosome nucleo ...
Cell Organelle Packet
... 1. Which organelles are enclosed by a double bound membrane? 2. What are the three parts of the cell theory? Who(m) is credited with the theory? 3. Compare prokaryotic to eukaryotic cells in terms of organelles in common and difference. 4. Explain the endomembrane system. 5. What challenges face a c ...
... 1. Which organelles are enclosed by a double bound membrane? 2. What are the three parts of the cell theory? Who(m) is credited with the theory? 3. Compare prokaryotic to eukaryotic cells in terms of organelles in common and difference. 4. Explain the endomembrane system. 5. What challenges face a c ...
Lecture 7: Intro to the cell, cont
... Networks of filaments near the plasma membrane help to maintain a cell’s shape ...
... Networks of filaments near the plasma membrane help to maintain a cell’s shape ...
Unit B: Cell structure
... Function of Ribosomes • Made from two protein subunits and rRNA • Some are free, found alone in cytoplasm • Others are attached to the RER • Translation of mRNA into polypeptides or PROTEIN SYNTHESIS! ...
... Function of Ribosomes • Made from two protein subunits and rRNA • Some are free, found alone in cytoplasm • Others are attached to the RER • Translation of mRNA into polypeptides or PROTEIN SYNTHESIS! ...
Lecture #12 Date
... radiate from the microtubules towards the central microtubules to help maintain the structure of the cilium or flagellum. ...
... radiate from the microtubules towards the central microtubules to help maintain the structure of the cilium or flagellum. ...
Cilia and Flagella: The Basics
... Basal body (Kinetosome) located at base 9 sets of 3 microtubules in radial ...
... Basal body (Kinetosome) located at base 9 sets of 3 microtubules in radial ...
Prokaryotes
... Smaller .5 to 2um (~1/1000th mm) ANALOGY No Nucleus -DNA in nucleoid region Prokarytic cell wall (peptidoglycan) -rigid, maintain shape of cell -protection - surrounds plasma membrane Capsule – found around some prokaryotes over cell wall - sticky polysaccharide covering - protection - found on many ...
... Smaller .5 to 2um (~1/1000th mm) ANALOGY No Nucleus -DNA in nucleoid region Prokarytic cell wall (peptidoglycan) -rigid, maintain shape of cell -protection - surrounds plasma membrane Capsule – found around some prokaryotes over cell wall - sticky polysaccharide covering - protection - found on many ...
Micro Notes
... 3 Different Categories of Cells/Life: 1. Archaea - prokaryotic, unicellular - have ribosomes and cell wall for protection - live in extreme environments (very hot hydrothermal vent). 2. Bacteria - prokaryotic, unicellular - ribosomes and cell wall 3. Eukarya - eukaryotic (have nucleus and organelles ...
... 3 Different Categories of Cells/Life: 1. Archaea - prokaryotic, unicellular - have ribosomes and cell wall for protection - live in extreme environments (very hot hydrothermal vent). 2. Bacteria - prokaryotic, unicellular - ribosomes and cell wall 3. Eukarya - eukaryotic (have nucleus and organelles ...
Flagellar Morphology and Mechanisms of Bacterial Motility
... Motile bacteria move using flagella, threadlike projections that extend out from the cell wall. While you can see the bacterial cells under the high-power objective of a light microscope, most flagella are are so thin that they cannot be visualized with brightfield microscopy and are 15 - 20 µm in l ...
... Motile bacteria move using flagella, threadlike projections that extend out from the cell wall. While you can see the bacterial cells under the high-power objective of a light microscope, most flagella are are so thin that they cannot be visualized with brightfield microscopy and are 15 - 20 µm in l ...
Chapter 3
... 3. Many bacteria commonly carry extrachromosomal pieces of DNA called ___________, which are able to ___________ independently of the bacterial chromosome. 4. Protein synthesis takes place at ___________. 5. The main components of cell membranes are ___________ and ___________ 6. Gram-positive cell ...
... 3. Many bacteria commonly carry extrachromosomal pieces of DNA called ___________, which are able to ___________ independently of the bacterial chromosome. 4. Protein synthesis takes place at ___________. 5. The main components of cell membranes are ___________ and ___________ 6. Gram-positive cell ...
Unit 4: Microscopes, Cell Structures and tree of Life
... DNA. In prokaryotes the DNA is a single, circular structure. In eukaryotes, the DNA has associated proteins, is linear and occur in even numbers. Cytoplasm: The area between the plasma membrane and fills the interior of the cell. It has a jello-like consistency and can move. The liquid portion minus ...
... DNA. In prokaryotes the DNA is a single, circular structure. In eukaryotes, the DNA has associated proteins, is linear and occur in even numbers. Cytoplasm: The area between the plasma membrane and fills the interior of the cell. It has a jello-like consistency and can move. The liquid portion minus ...
Document
... A bacterial flagellum has 3 basic parts: a filament, a hook, and a basal body. • 1) The filament is the rigid, helical structure that extends from the cell surface. It is composed of the protein flagellin arranged in helical chains so as to form a hollow core. During synthesis of the flagellar fila ...
... A bacterial flagellum has 3 basic parts: a filament, a hook, and a basal body. • 1) The filament is the rigid, helical structure that extends from the cell surface. It is composed of the protein flagellin arranged in helical chains so as to form a hollow core. During synthesis of the flagellar fila ...
Finer Points of Chapter 4
... (b) In a cilium or flagellum, two adjacent doublets cannot slide far because they are physically restrained by proteins, so they bend. (Only two of the nine outer doublets in Figure 6.24b are shown here.) ...
... (b) In a cilium or flagellum, two adjacent doublets cannot slide far because they are physically restrained by proteins, so they bend. (Only two of the nine outer doublets in Figure 6.24b are shown here.) ...
Flagellum
A flagellum (/fləˈdʒɛləm/; plural: flagella) is a lash-like appendage that protrudes from the cell body of certain prokaryotic and eukaryotic cells. The word flagellum in Latin means whip. The primary role of the flagellum is locomotion but it also often has function as a sensory organelle, being sensitive to chemicals and temperatures outside the cell. Flagella are organelles defined by function rather than structure. There are large differences between different types of flagella; the prokaryotic and eukaryotic flagella differ greatly in protein composition, structure, and mechanism of propulsion. However, both are used for swimming.An example of a flagellate bacterium is the ulcer-causing Helicobacter pylori, which uses multiple flagella to propel itself through the mucus lining to reach the stomach epithelium. An example of a eukaryotic flagellate cell is the mammalian sperm cell, which uses its flagellum to propel itself through the female reproductive tract. Eukaryotic flagella are structurally identical to eukaryotic cilia, although distinctions are sometimes made according to function and/or length.