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Lab 1 Introduction
Lab 1 Introduction

... Gram-positive bacteria ...
APCellOrganelles13
APCellOrganelles13

... A theory needs evidence… • mtDNA and cpDNA • Ribosomes and protein synthesis • Size/Structure • Double membranes • Binary Fission ...
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Gram Positive Cell Walls

... – Run in ‘parallel’ throughout the cell wall – NAM links to peptide chains – Holds the whole porous ‘mesh’ together ...
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Summaries 1 to 4

... nutrient. You can extend this line of reasoning to other structures. Why does the bacteria “want” to make capsule [to help avoid dessication, to prevent detachment from a surface, etc]? Or pili [sex, attachment]? Or an endospore? Etc. Absence or presence of a nucleus is very important as that is wha ...
Procaryotic structure and function
Procaryotic structure and function

... Attached to cell envelope  No ...
MICROORGANISMS
MICROORGANISMS

... These are single cell bodies. It has a strong cell wall. It has nuclear reticulum (nyastika jali) instead of membrane bound reticulum (jhilliyukta nyasti). Membrane bound organels are not seen inside the cell. ...
Presentation
Presentation

... Production of Citric Acid - continuous culture Previously extracted from citrus fruit, which became less available during WWI. A new source was discovered soon after that with the fungus Aspergillus niger and molasses as a carbon source. A continuous culture allows a steady state of growth and high ...
Name ______ Date - Net Start Class
Name ______ Date - Net Start Class

... 4. Which of these is most responsible for carrying coded information from the nucleus? a. The cell membrane b. ATP c. mRNA d. The ribosomes 5. Which of these functions most like the “brain” of a cell? a. The Golgi apparatus b. The mitochondrion c. The nucleus d. The smooth endoplasmic reticulum . 6. ...
Antibiotics cell envelope
Antibiotics cell envelope

... • Selectively toxic for bacteria – bactericidal (killing) – bacteriostatic (growth inhibition) • minimize harm to patient ...
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... Nutrition - process of acquiring nutrients from the environment and using them for metabolism and growth Definitions 1. essential nutrient – cannot be made by the cell – must be obtained from the environment 2. macronutrient – required in large amounts (C,H,O) 3. micronutrient – required in small am ...
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PROKARTOTES

... cells is their cell wall, which maintains cell shape, protects the cell, and prevents it from bursting in a hypotonic environment • Bacterial cell walls contain peptidoglycan, a network of sugar polymers cross-linked by ...
PROKARYTOTES EUKARYOTES
PROKARYTOTES EUKARYOTES

... base pairs [4 mega base pairs] in length), tightly wound as supercoils. The hereditary information defining the cell’s structures and functions. N.B. Absence of a nuclear membrane. Plasmids: Extrachromosal small circular independently replicating double-stranded DNA molecules often encoding features ...
Honors Biology - WordPress.com
Honors Biology - WordPress.com

... prey. When they find it, they engulf it and as a group secrete a substance that digests it. The entire colony then feeds on the nutrients. They can be found in soil, are thin rod shaped, gram-negative cells that exhibit self-organizing behavior as a response to environmental cues. The swarm, which h ...
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Disease and Disease-Producing Organisms Part 1

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The (gamma) Proteobacteria

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VIRUS Notes

... typhoid fever. ...
B 1_1 Bacteria - Philip Rogers Elementary School
B 1_1 Bacteria - Philip Rogers Elementary School

... Bacterial cells are classified as prokaryotic. Some bacteria also have an outer coating called a slime layer. A slime layer enables a bacterium to stick to surfaces and reduce water loss. Many bacteria that live in moist conditions also have whiplike tails called flagella to help them ...
Bacteria
Bacteria

... • Lack membrane bound organelles o No membrane organelles = no nucleus ...
Microbial Growth (Ch 6)
Microbial Growth (Ch 6)

... Calculation: Number of colonies on plate × reciprocal of dilution of sample = number of bacteria/ml (For example, if 54 colonies are on a plate of 1:1000 dilution, then the count is 54 × 1000 = 54,000 bacteria/ml in sample.) ...
Kingdom Bacteria: Bacteria are simple, prokaryotic organisms. They
Kingdom Bacteria: Bacteria are simple, prokaryotic organisms. They

... binary fission in bacterial cells. Example of Reproduction for Eubacteria and Archaebacteria The bacterial cell, (example used: E. coli), reproduces by binary fission. (See Figure 5.4, p. 134). 1. As the bacterial cell grows, it makes a copy of its original, single chromosome. 2. The cell elongates ...
Prokaryotic cell structure
Prokaryotic cell structure

... retain the dark blue stain used in microscopy. They are therefore known as Gram-negative this contrast with Grampositive single membrane bacteria. ...
Helpful Bacteria a. Name some helpful bacteria. b. How are bacteria
Helpful Bacteria a. Name some helpful bacteria. b. How are bacteria

... ...
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... Let’s consider the relative biomass of humans and bacteria on Earth. With 6 billion people on Earth, with an average mass of 50 kg, the biomass of humans is 6 × 109 people × 50 kg/person = 3 × 1011 kg. What about bacteria? Let’s consider bacteria in oceans. A rough estimate, which certainly varies w ...
Bacterial Cell Structure, Function and Classification
Bacterial Cell Structure, Function and Classification

... Some Gram positive bacteria are capable of forming survival structures called endospores. Endospores are formed primarily by members of the genus Clostridium and the genus Bacillus. Endospores provide the cells with resistance to heat, chemicals, dessication, UV light and nutrient deprivation. Cells ...
Vocabulary Chapter 11 Prokaryotes Monera Another name given to
Vocabulary Chapter 11 Prokaryotes Monera Another name given to

... Example: Bacteria are often referred to as either prokaryotae or monerans flagella Whip-like structures used to propel bacteria Example: The flagella found on many bacteria give them mobility. nucleoid The location in the prokaryote cell containing the DNA archaebacteria The most ancient and primiti ...
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Bacterial cell structure



Bacteria, despite their simplicity, contain a well-developed cell structure which is responsible for many of their unique biological structures. Many structural features are unique to bacteria and are not found among archaea or eukaryotes. Because of the simplicity of bacteria relative to larger organisms and the ease with which they can be manipulated experimentally, the cell structure of bacteria has been well studied, revealing many biochemical principles that have been subsequently applied to other organisms.
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