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Chapter 1: The Biochemical Basis of life
Chapter 1: The Biochemical Basis of life

... the post-synaptic cell. Neurotransmitters are stored in pre-synaptic vesicles (axon terminal) in the cytosol. Ca+ pumps work continuously to pump Ca+ into the synaptic cleft maintaining a Ca+ ion imbalance. Once the action potential arrives the calcium channels open allowing the Ca+ to move from the ...
Diffusion
Diffusion

... Isotonic Solutions: contain the same concentration of solute as an another solution (e.g. the cell's cytoplasm). When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at the same rate. The fluid that surrounds the body cells is isotonic. ...
Cells
Cells

... 1. Hair-like projections that stick out of the cell membrane and used for movement. 2. Often called the “hairs” of the cell. ...
Plant Cells and Tissues, Part 2
Plant Cells and Tissues, Part 2

... Phloem is involved in the transport of organic solutes in the plant. The main conducting elements are aligned to form tubes called sieve tubes. The sieve-tube elements at maturity are living cells, interconnected by perforations in their end walls formed from enlarged and modified plasmodesmata (sie ...
Lesson 6 Cell Energy – Transport and Use
Lesson 6 Cell Energy – Transport and Use

... You may recall that diffusion is a process in which molecules move from an area of higher concentration to an area of lower concentration. Sometimes molecules need to move in the opposite direction. They need to get from an area of lower concentration to an area o higher concentration. In such cases ...
A Carrier Protein Facilitates Diffusion
A Carrier Protein Facilitates Diffusion

... Figure 5.11 A Carrier Protein Facilitates Diffusion ...
Molecular properties of cardiac tail
Molecular properties of cardiac tail

Human Physiology: Cell Structure and Function
Human Physiology: Cell Structure and Function

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Microviewer Slides
Microviewer Slides

... answer the questions related to each cell. Some of the answers will be found in the reading booklet, while other questions will be answered by viewing the cells. Introduction Read the introduction in the booklet. 1. Scientists refer to cells as … 2. What is the estimated number of cells in a human b ...
Name: Date: Period: _____ Unit 2 Notes, Part 3 – The Origin and
Name: Date: Period: _____ Unit 2 Notes, Part 3 – The Origin and

... right and were able to synthesize amino acids from these conditions 7. Steps involved in the creation of the first living organisms (single celled): -Small organic molecules (ex: amino acids, the building blocks for proteins) were synthesized -These small molecules joined into macromolecules (i.e. l ...
I m munoisolation of Kex2p-containing organelles from yeast
I m munoisolation of Kex2p-containing organelles from yeast

... Antibodies that specifically recognise either the luminal N-terminal domain or the cytoplasmically disposed C-terminal domain of Kex2p were obtained using bacterially produced fusion proteins. To obtain the C-terminal domain antibody, a spa-KEX2 gene fusion encoding a protein consisting of the 100 C ...
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viruses-bacteria-int..

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Why Do Cells Need to Reproduce?
Why Do Cells Need to Reproduce?

... Mitosis is part of a cell’s life cycle. Cell division occurs during the stage of Mitosis. During this stage, new cells with identical genetic information are formed. The genetic material and cytoplasm are equally divided between two cells. What is the genetic material? ...
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MITOSIS

... AFTER MITOSIS-CYTOKINESIS • Cytoplasm splits in two ...
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Cellular Structure and Function

... Cellular Structure and Function ...
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Functions of Life Content

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Week 4 - Composition of Cells
Week 4 - Composition of Cells

... Proteins contain nitrogen as well as C, H and O. There are 20 naturally occurring amino acids which make up the many different types of proteins. Amino acids join together with a peptide bond. Two amino acids bonded together are called a dipeptide. More than two amino acids bonded together are calle ...
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8Ae6 Eat to live - School

... are digested into amino acids. Cells inside our bodies use these amino acids to produce new proteins that we need. Muscle cells contain a lot of protein. Fats contain the elements carbon, hydrogen and oxygen. The fats that we eat are digested into fatty acids and another substance called glycerol Th ...
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Organic Notes.graffle

... thousands of different proteins found in a single cell. If the 20 different amino acids are put together in various combinations there can be endless numbers of proteins. ...
A sejt - SotePedia
A sejt - SotePedia

... factor in the Wnt pathway [10]. As shown here canonical Wnt signalling (Wnt/β-catenin) is defined by its inhibition of glycogen synthase kinase-3β (GSK-3β) catalyzed phosphorylation of β-catenin. Several factors, including Cer (cerebrus), WIF-1 (wnt-interacting protein), and sFRPs (secreted frizzled ...
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... What are the seven properties of water given in class? What causes water to have all these properties? What is heat? Temperature? What is a solute? Solvent? Solution? What is hydrophobic? Hydrophilic? What is an acid? Base? Buffer? What is acid precipitation? How is it defined? What causes it? What ...
Power Point 3 - G. Holmes Braddock
Power Point 3 - G. Holmes Braddock

... limiting factor(the factor that is stopping the reaction from going to a higher rate). • If it is the limiting factor, the rate of reaction will go up but only to a certain rate. • If this occurs, concentration will no longer be the limiting factor and something else will have to limit the rate of r ...
Modification of Amino Acids
Modification of Amino Acids

... * Ubiquitination Protein Targeting: Directing proteins to specific locations (for example, nucleus, mitochondria, or cell membrane) is accomplished by tagging of proteins (signal sequence for secreted proteins, nuclear localization sequences for nuclear proteins). ...
Format Writing and Science
Format Writing and Science

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Relations in Open Biological Ontologies
Relations in Open Biological Ontologies

... examples of reasoning: some example queries coud be: - what are the parts of a mitochondria, and what do these parts develop from (transformation_of)? - what influences alcohol-dehydrogenasis activity (has agent) and is located in liver? (idealwise this would return all metabolites, genes, gene prod ...
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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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