Exam #2
... flagella are individual flagella on the “ends” of bacterial cells. B) Peritrichous flagella are all over the bacterial cells; lophotrichous flagella are tufts on the “ends” of bacterial cells. C) Polar flagella are individual flagella on the “ends” of bacterial cells; peritrichous flagella are tufts ...
... flagella are individual flagella on the “ends” of bacterial cells. B) Peritrichous flagella are all over the bacterial cells; lophotrichous flagella are tufts on the “ends” of bacterial cells. C) Polar flagella are individual flagella on the “ends” of bacterial cells; peritrichous flagella are tufts ...
Prokaryotic and Eukaryotic Cells
... • The Nucleoid is the region of DNA in a prokaryotic cell • It is not surrounded by a membrane • The DNA is free floating in the cytoplasm Nucleoid ...
... • The Nucleoid is the region of DNA in a prokaryotic cell • It is not surrounded by a membrane • The DNA is free floating in the cytoplasm Nucleoid ...
Centrioles are self-replicating organelles made up
... Centrioles - Centrioles are self-replicating organelles made up of nine bundles of microtubules and are found only in animal cells. They appear to help in organizing cell division, but aren't essential to the process. Cilia and Flagella - For single-celled eukaryotes, cilia and flagella are essentia ...
... Centrioles - Centrioles are self-replicating organelles made up of nine bundles of microtubules and are found only in animal cells. They appear to help in organizing cell division, but aren't essential to the process. Cilia and Flagella - For single-celled eukaryotes, cilia and flagella are essentia ...
Section 7.3
... Sack surrounded by a membrane Plant cells have much larger water vacuoles than animal cells ...
... Sack surrounded by a membrane Plant cells have much larger water vacuoles than animal cells ...
Chapter 6: Concept 6.6
... fibers extending throughout the cytoplasm. Unlike your body's skeleton, the skeleton of most cells does not keep the same structural pattern all the time. It is always changing, with new extensions building at the same time that others are breaking apart. Different kinds of fibers make up the cytosk ...
... fibers extending throughout the cytoplasm. Unlike your body's skeleton, the skeleton of most cells does not keep the same structural pattern all the time. It is always changing, with new extensions building at the same time that others are breaking apart. Different kinds of fibers make up the cytosk ...
prokaryotes
... In prokaryotes, transcription (synthesis of RNA) and translation (synthesis of proteins) occurs simultaneously. The cell is surrounded by a membrane, but there are no internal membranes. Outside the membrane is a cell wall, and sometimes an outer capsule which can have structures projecting form it. ...
... In prokaryotes, transcription (synthesis of RNA) and translation (synthesis of proteins) occurs simultaneously. The cell is surrounded by a membrane, but there are no internal membranes. Outside the membrane is a cell wall, and sometimes an outer capsule which can have structures projecting form it. ...
Feb14-08
... – They are the largest cells, almost visible to the naked eye – Big, heavy and sink, not good swimmers – Mostly benthic or wet soils Many Euglena are non-photosynthetic (no chloroplast) Some have multiple chloroplasts. Have both Chlorophyll a and b, probably some type of green algae once. Outer memb ...
... – They are the largest cells, almost visible to the naked eye – Big, heavy and sink, not good swimmers – Mostly benthic or wet soils Many Euglena are non-photosynthetic (no chloroplast) Some have multiple chloroplasts. Have both Chlorophyll a and b, probably some type of green algae once. Outer memb ...
The Prokaryotes Simplest organisms All unicellular
... 4. Feeding B. Flagella - Solid, unsheathed, protein - Filament, hook, basal body C. Axial Filaments D. Fimbriae and Pili ...
... 4. Feeding B. Flagella - Solid, unsheathed, protein - Filament, hook, basal body C. Axial Filaments D. Fimbriae and Pili ...
Chapter Three Review #2 KEY - Mr. Lesiuk
... A microfilament (Actin) consists of two filamentous proteins twisted around each other in a helical manner. ...
... A microfilament (Actin) consists of two filamentous proteins twisted around each other in a helical manner. ...
Lab 6 – Bacterial motility
... The ability of an organism to move by itself is called motility. Motility is closely linked with chemotaxis, the ability to orientate along certain chemical gradients. Eucaryotic cells can move by means of different locomotor organelles such as cilia, flagella, or pseudopods. Procaryotes move by mea ...
... The ability of an organism to move by itself is called motility. Motility is closely linked with chemotaxis, the ability to orientate along certain chemical gradients. Eucaryotic cells can move by means of different locomotor organelles such as cilia, flagella, or pseudopods. Procaryotes move by mea ...
Protein-Protein Interactions in Single Bacteria Flagella
... • Part II of the project will be to design hardware which will make the AFM cantilever pull with constant force. • With the AFM in constant force mode, we can measure the time intervals between breakage events as a function of the applied force. • This data can be used to compute a free energy curve ...
... • Part II of the project will be to design hardware which will make the AFM cantilever pull with constant force. • With the AFM in constant force mode, we can measure the time intervals between breakage events as a function of the applied force. • This data can be used to compute a free energy curve ...
Prokaryotic Cells
... host organism’s immune system, by hiding antigens on the cell surface. The capsule is usually composed of polysaccharides, and also contains water to protect against desiccation (drying out). 4 of 7 ...
... host organism’s immune system, by hiding antigens on the cell surface. The capsule is usually composed of polysaccharides, and also contains water to protect against desiccation (drying out). 4 of 7 ...
Chapter 16
... • To know evolution, you must know something about genetics & heritable traits …before that, you need to understand, cellular reproduction, proteins, & DNA …before that, how a cell works, how a protein comes about, what makes up DNA …membranes, organelles …even down to molecules, atoms, etc. ...
... • To know evolution, you must know something about genetics & heritable traits …before that, you need to understand, cellular reproduction, proteins, & DNA …before that, how a cell works, how a protein comes about, what makes up DNA …membranes, organelles …even down to molecules, atoms, etc. ...
Chapter 4: Cellular Structure
... • basal body anchors flagellum in PM & cell wall, rotates hook & filament to propel bacterium • different from “wave-like” motion of eukaryotic flagellum ...
... • basal body anchors flagellum in PM & cell wall, rotates hook & filament to propel bacterium • different from “wave-like” motion of eukaryotic flagellum ...
1. Eukaryotic Cell Structure Eukaryotic Organelles
... Different concentrations of various substances (i.e., ions) inside vs outside the cell are set up & maintained by various membrane proteins: protein pumps • move substances from lower to higher conc. • active transport – requires energy (ATP) ...
... Different concentrations of various substances (i.e., ions) inside vs outside the cell are set up & maintained by various membrane proteins: protein pumps • move substances from lower to higher conc. • active transport – requires energy (ATP) ...
Structure and Function of Cells
... Maintain cell shape Aide in movement Move the Pseudopod (false foot): projections of the cell membrane of ...
... Maintain cell shape Aide in movement Move the Pseudopod (false foot): projections of the cell membrane of ...
Cell Structure PPT Part 2
... chlorophyll and other pigments are found in the thylakoid membrane where light energy is converted into chemical energy. ...
... chlorophyll and other pigments are found in the thylakoid membrane where light energy is converted into chemical energy. ...
Anatomy of a Cell
... • Long filamentous appendages containing a filament, hook and basal body. • Filament: consists of protein flagellin. • Hook: single type of protein, connects filament to the basal body. • Basal body: contains a rod and several rings in gram-negative bacteria. ( Gram-positive bacteria only have the i ...
... • Long filamentous appendages containing a filament, hook and basal body. • Filament: consists of protein flagellin. • Hook: single type of protein, connects filament to the basal body. • Basal body: contains a rod and several rings in gram-negative bacteria. ( Gram-positive bacteria only have the i ...
Cilia and flagella
... of cells. In eukaryotic cells, the structure of cilia and flagella is similar. In cross-section they show a ‘9+2’ arrangement, comprising nine pairs of protein microtubules in a ring, with two further microtubules in the centre (see Figure 1), all enclosed by the cell-surface membrane. Movement — be ...
... of cells. In eukaryotic cells, the structure of cilia and flagella is similar. In cross-section they show a ‘9+2’ arrangement, comprising nine pairs of protein microtubules in a ring, with two further microtubules in the centre (see Figure 1), all enclosed by the cell-surface membrane. Movement — be ...
Occurrence (Distribution of bacteria)
... Their body consists of mycelium just like fungi. Streptomyces group belongs to these mold like bacteria. Streptomycin, an antibiotic is produced by Streptomyces. ...
... Their body consists of mycelium just like fungi. Streptomyces group belongs to these mold like bacteria. Streptomycin, an antibiotic is produced by Streptomyces. ...
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.