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VAN-MOOY_ASLO_2005
VAN-MOOY_ASLO_2005

... phosphorus for cell membrane synthesis. Instead of employing phospholipids as most bacteria do, these picocyanobacteria synthesize primarily sulfoquinovosyl- and monogalactosyl-diacylglycerols. These glycolipid molecules contain polar head groups composed of sulphate and sugar as opposed to phosphat ...
Princeton H - SchoolNotes
Princeton H - SchoolNotes

... G. How do carbohydrates undergo dehydration synthesis? H. How do carbohydrates undergo hydrolysis? I. How do you test a food sample for the presence of a. monosaccharides b. starch (Lab 15) IV. Lipids (Chapter3.2; 48.1; Lab 15) A. What is a lipid? B. What elements does it contain? C. How can you dis ...
Communication between Mating Yeast Cells
Communication between Mating Yeast Cells

... that occurs and the types of responses that result from this communication. a) Communication between two plant cells b) Communication between two immune-system cells c) Communication either between a neuron and another neuron, or between a neuron and a muscle cell d) Communication between a specific ...
Quantifying Cellular Activity in Untagged Cells via Time
Quantifying Cellular Activity in Untagged Cells via Time

10 Plant and Animal Cells
10 Plant and Animal Cells

... knowledge of cells. They may suggest that cells are the building blocks of life. ...
Bchem 4200 Part7 - U of L Class Index
Bchem 4200 Part7 - U of L Class Index

... Enzymes are biochemical catalysts that have in common three destinctive features: 1. catalytic power 2. regulation 3. specificity ...
Plants, Animals, and other Weird Cells
Plants, Animals, and other Weird Cells

... 1. Obtain a slide, cover slip. Clean both the slide and the cover slip. 2. Drop one small drop of water on the slide. 3. Using a clean toothpick, gently scrape the toothpick inside your mouth along the cheek wall. 4. Smear the toothpick across the slide where the water drop is. 5. Add one drop of me ...
A7: Decoding genome encoded host-pathogen
A7: Decoding genome encoded host-pathogen

... HD-GYP domain containing proteins degrade it. These domain containing proteins are abundant and often modular in a diverse set of bacteria, i.e. containing additional domains such as PilZ, REC, PAS etc. (4). The modular nature enables participation in various biological processes, their diverse dist ...
to Fairweather-Lesson-Plan-for-Virtual-Worlds
to Fairweather-Lesson-Plan-for-Virtual-Worlds

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Mycelium (n) - Madeira City Schools
Mycelium (n) - Madeira City Schools

... the cell walls of plants (however, it remains enclosed in the plasma membrane of the plant). Mycorrhizae – mutualistic relationship between plant roots and fungi -- Plant provides fungus with a steady supply of sugar -- Fungus increases the suface area for water uptake and also supplies plant with p ...
Plant hormones and phototropism
Plant hormones and phototropism

... contributes to auxin transport. In the pH 7 environment of the cell, auxin is an anion. Here is a description of a proposed step-by-step process. 1. When auxin encounters the acidic environment of the wall, the molecule picks up a hydrogen ion to become electrically neutral. 2. As a relatively small ...
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... chloroplasts and can make their own food (they are producers). Euglena can also absorb food from their environment; Euglena usually live in quiet ponds or puddles. Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is loc ...
Visceral Muscle - Washington State University
Visceral Muscle - Washington State University

... • Control is exercised at the thin filaments in striated muscle (skeletal and cardiac), but primarily at the thick filaments in smooth muscle. • The calcium-binding molecule in smooth muscle is a soluble protein, calmodulin. • The protein that controls the activity of myosin heads is myosin light ch ...
Human Endothelial Cells Express Integrin Receptors on the Luminal
Human Endothelial Cells Express Integrin Receptors on the Luminal

... is of particular relevance on EC, since it is abundantly expressed and can bind many different matrix and plasma proteins. It is still unknown whether integrin receptors are selectively located to the basal side of EC membrane or may also be exposed on the cell surface in contact with blood. This is ...
pseudopodium induction by the action of quaternary ammonium
pseudopodium induction by the action of quaternary ammonium

... placed 40—50 ji from the cell. Tetramethylammonium bromide, acetylcholine and benzoylcholine at the same concentration (io~3 M) were ineffective and amoebae were indifferent to micropipettes containing these compounds placed as close as io/t from the cell surface. The response of amoebae to pseudopo ...
Chemistry Big Ideas
Chemistry Big Ideas

... 1. Carbon moves from the environment to organisms where it is used to build carbohydrates, proteins, lipids or nucleic acids. Carbon is used in storage compounds and cell formation in all organisms. 2. Nitrogen moves from the environment to organisms where it is used in building proteins and nucleic ...
Starter – answer the following questions - sentences
Starter – answer the following questions - sentences

... Explain why they are arranged in this way. Draw a diagram of the arrangement of these tubes in the leaves of plants. (p134) Explain why they are arranged in this way. Draw a diagram of the arrangement of these vessels in the root of the plant. (p131) Give a reason for this arrangement. ...
2010_Clement_BiolMed
2010_Clement_BiolMed

... The observed increase in membrane fluidity in HT22H2O2 and HT22Glu cells suggests that the actual localization and/or distribution of lipids and membrane-associated proteins might be altered compared to HT22WT cells. We therefore analyzed the composition of different membrane regions, DRMs and non-DR ...
Specification of cell fates
Specification of cell fates

... gradually translated into cellular processes. The principal ways in which this happens is by (1) subdivision of larger fields of cells into smaller fields, and (2) specifying the "address" of each cell within the field. This is a recursive process that requires translation of gradients of gene expre ...
The Power Of Green - Arizona State University
The Power Of Green - Arizona State University

... existed very near the origin of life on this planet. It’s clear [from fossil records] that some organisms living 3.5 billion years ago were photosynthetic. They are the oldest evidence for any life on Earth,” Blankenship says. Scientists have known for some time that photosynthesis is the means by w ...
Two Plant–Viral Movement Proteins Traffic in the
Two Plant–Viral Movement Proteins Traffic in the

... A characteristic feature of the expression cycle of cells bombarded with TGB2 fusion proteins was the appearance of a motile population of vesicle-like structures with a size range of ;0.5 to 4 mm (Figure 1H). Many of these vesicles were associated with the plasma membrane and seemed to bud from it ...
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Chapter 7

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A Key Enzyme in the Biogenesis of Lysosomes Is a
A Key Enzyme in the Biogenesis of Lysosomes Is a

... Fig. 1. Structural requirements for cleavage of the a/b-subunit precursor of the GlcNAc-1-phosphotransferase. (A) Schematic presentation of a/b-subunit constructs used in this study. Construct 1 shows the full-length a/b-subunit precursor and its domain structure (3). The proposed cleavage site (925 ...
General Microbiology
General Microbiology

... 2- Karyogamy: It is the union of two different nuclei (one from male and the other from female). 3- Meiosis followed by mitosis: Meiosis is to reduce the diploid number of chromosomes (2 n) to the haploid number ( n ). Mitosis is to increase the haploid number of chromosomes. ...
Bacteria Challenge #2
Bacteria Challenge #2

... • Directions: After each question, write your answer on a separate sheet of paper. You will be given about 30 seconds per questions. The group with the most correct answers will win. ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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