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Eukaryotic heterotrophs
Eukaryotic heterotrophs

... Chromosomes associates with large amounts of protein the cytoplasm contains membranes which can be structured (organelles) Have a nuclear membrane (DNA visible as a nucleus) e.g. Yeasts, Fungi, all higher organisms ...
Exam 1
Exam 1

... Choose the Correct answer for each question and place all answers on the scantron sheet. .Which of the following distinguish the field of microbiology from other fields of biology? A. The size of the organism studied B. The techniques used to study organisms regardless of their size C. Both the size ...
Ch. 27 Bacteria and Archaea notes
Ch. 27 Bacteria and Archaea notes

... • No membrane bound organelles but plasma membrane folds on itself to make metabolic membranes. 1 m ...
Chapter 2
Chapter 2

... Fungi are non-motile, heterotrophic eucaryotes, possessing a cell wall and may reproduce sexually or asexually (Figure 2.16). They are commonly subdivided into the groups yeasts or molds. Yeasts are unicellular cells, much larger than bacteria. Molds are the more common type; they are multicellular ...
Viewing Cells Microscopes are used to magnify cells. The number of
Viewing Cells Microscopes are used to magnify cells. The number of

... Early Microscopes In the late 1500s, the first microscope was made by a Dutch maker of reading glasses. He put two magnifying glasses in a tube and got an image that was larger than the image that was made by either lens alone. In the mid 1600s, Antonie van Leeuwenhoek, a Dutch fabric merchant, made ...
Endosymbiotic Theory - University of Evansville Faculty Web sites
Endosymbiotic Theory - University of Evansville Faculty Web sites

... • Sterol, which are present in the cell walls of the Eukarya, may just indicate that the "host" cell that was eventually invaded by Purple Bacteria and Cyanobacteria had evolved. • They do not provide evidence that the key symbiotic events had taken place at 2.7 Bya. • A better way to spot Eukarya i ...
Microscopy - York Technical College
Microscopy - York Technical College

... •Requires staining of specimens usually ...
I need to know about bacteria in blood
I need to know about bacteria in blood

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What happens if you put a few drops of food coloring in water? Over
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Cells are different, yet they have many similarities. y
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... make copies of their DNA and pass it on to the new cells. • DNA contains the instructions for making new cells and controls all cell functions. ...
Cell Structure
Cell Structure

... Procaryotic: These cells are simple in structure, with no recognizable organelles. They have an outer cell wall that gives them shape. Just under the rigid cell wall is the more fluid cell membrane. The cytoplasm enclosed within the cell membrane does not exhibit much structure when viewed by electr ...
I. CYTOPLASM A. The cytoplasm is thick! B. It contains nucleoid
I. CYTOPLASM A. The cytoplasm is thick! B. It contains nucleoid

... 3. Multiple sugar chains are ___________________ by amino acids ...
Review: diffusion osmosis facilitated diffusion Active Transport (Pg
Review: diffusion osmosis facilitated diffusion Active Transport (Pg

... take fluid from the blood, move it across the  cytoplasm and then release it into the  extracellular fluid surrounding the cells outside  the capillary ...
What is coBacterial Growth and Reproduction
What is coBacterial Growth and Reproduction

... appendages, such as type 1 pili and flagella (ref.). In addition to locomotion by the flagellar movement, there are other modes of locomotion. Spirochetes have filaments which spiral around the cell beneath the cell wall. Their movement results in a “corkscrew” like motion. Two clinically significan ...
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Bacteria - Central Dauphin School District
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... technical context relevant to grades 9–12 texts and topics.  CC.3.5.9-10.E Analyze the structure of the relationships among concepts in a text, including relationships among key terms (e.g., force, friction, reaction force, energy). PA Academic Standards (if applicable): 3.1.B.A1 Compare and contra ...
Unit 9 Test Review ANSWERS
Unit 9 Test Review ANSWERS

... What is a dichotomous key? a. A tool for finding the identity to an unknown organism 7.List the three domains. Which kingdoms are in each domain? a. Domain Bacteria- Kingdom Eubacteria (auto and hetero); Domain Archaea- Kingdom Archaebacteria (auto and hetero); Domain Eukarya- Kingdoms Protista (aut ...
Station 1 Prokaryotic vs. Eukaryotic Cells
Station 1 Prokaryotic vs. Eukaryotic Cells

... • Can the following structures be found in both prokaryotic and eukaryotic cells? ...
Prokaryotic and Eukaryotic Cells Eukaryotic Prokaryotic agar
Prokaryotic and Eukaryotic Cells Eukaryotic Prokaryotic agar

... living things are made of one or more cells.  Cells are the basic unit of structure and function in living things.  All cells come from other cells. ...
Cells and Their Environment
Cells and Their Environment

... • Cells, tissues, organs, and organisms must maintain a balance. • Cells do so by controlling and regulating what gets into and out of the cell. ...
Intro to Prokaryotic and Eukaryotic Cells
Intro to Prokaryotic and Eukaryotic Cells

... -outside of nucleus, contains with pores Nucleolus: -circular structure within nucleus -makes the ribosomes Nucleoplasm: -cytoplasm inside the nucleus ...
Chapter 3: Cells
Chapter 3: Cells

... • Microtubule – Made of Tubulin protein – Forms very small hollow tubes – Can change length of tube by adding or removing tubulin molecules – “Trackway” within cell for many cellular movements – Cilia – short, many – Flagella – long, few ...
Fact File: Pseudomonas syringae - British Society for Plant Pathology
Fact File: Pseudomonas syringae - British Society for Plant Pathology

... Pseudomonas syringae bacteria infect plants through natural openings, such as plant breathing holes called stomata in leaves and lenticels in woody tissues. The bacteria produce toxic chemicals that modify surrounding plant cells, allowing bacteria to infect and multiply. ...
Prokaryotics and Eukaryotic Cells
Prokaryotics and Eukaryotic Cells

... Eukaryotic cells are cells that contain a nucleus. A typical eukaryotic cell is shown in Figurebelow. Eukaryotic cells are usually larger than prokaryotic cells, and they are found mainly in multicellular organisms. Organisms with eukaryotic cells are called eukaryotes, and they range from fungi to ...
sample exam questions
sample exam questions

... D. Microtubules and other internal filaments. E. The protoplast. The Archaea are: A. Only present in “extreme” environments (very hot, very salty, etc.). B. Living examples of microorganisms that existed when life originated. C. Among the most prevalent human pathogens. D. A small group of physiolog ...
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Chemotaxis



Chemotaxis (from chemo- + taxis) is the movement of an organism in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (e.g., glucose) by swimming toward the highest concentration of food molecules, or to flee from poisons (e.g., phenol). In multicellular organisms, chemotaxis is critical to early development (e.g., movement of sperm towards the egg during fertilization) and subsequent phases of development (e.g., migration of neurons or lymphocytes) as well as in normal function. In addition, it has been recognized that mechanisms that allow chemotaxis in animals can be subverted during cancer metastasis.Positive chemotaxis occurs if the movement is toward a higher concentration of the chemical in question; negative chemotaxis if the movement is in the opposite direction. Chemically prompted kinesis (randomly directed or nondirectional) can be called chemokinesis.
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