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7-2 Lesson Overview (powerpoint)
7-2 Lesson Overview (powerpoint)

... known as tubulins. They play critical roles in maintaining cell shape. They also help to transport materials between different parts of the cell. Microfilaments and microtubules are two of the principal protein filaments that make up the cytoskeleton to maintain cell structure. ...
Allosteric enzymes
Allosteric enzymes

... Small (monomeric) G proteins affect conformation of other proteins: • GTP bound form binds and activates or inhibits • GDP bound form inactive • Other intermediates regulate the G proteins (GEF, GAP, etc) ...
RNA-seq: primary cells, cell lines and heat stress
RNA-seq: primary cells, cell lines and heat stress

... stress, with a particular interest in identifying evolutionarily conserved responses. To this end, genes were identified that were responsive to heat stress in the cultured liver, LMH and Caco-2 cells. The genes were then mapped to Gallus ...
Cell - Ms. Moore`s 7th Grade Class
Cell - Ms. Moore`s 7th Grade Class

... Let’s create the levels of organization for a frog. Each level must build upon the previous level. For example, if you draw a cardiac muscle cell, then you should draw cardiac muscle tissue, a heart, & the ...
Animal Cell Back to Plant Cell Structure Function
Animal Cell Back to Plant Cell Structure Function

... cytosol (liquid within the cell) and all of the organelles ...
The Basic Unit of Life
The Basic Unit of Life

... 2. What are the small units that can be seen under high power called?_______________ 3. Do these units appear filled or empty?______________________________________ 4. What specific cell part remains of the cell?__________________________________ 5. In 1665, Robert Hooke, an English scientist, repor ...
The Cell in Motion
The Cell in Motion

... lysosomes are unable to function properly. This is I Cell disease, and affected individuals have severe symptoms like mental retardation. This example illustrates how a gene is linked to a disease. ...
Conduction of a Nerve Impulse
Conduction of a Nerve Impulse

... membranes can occur very quickly (in less than 1 / 1000th of a second)  During this process, the number of ions moving is relatively small; the potential difference of charges in more important than the concentration of ions  Several action potentials can be generated before concentrations of ions ...
Cells and Tissues Part 2
Cells and Tissues Part 2

... into two cells  Occurs toward the end of interphase  DNA uncoils and each side serves as a template ...
Hearing
Hearing

... 2. Spike rate increases with an increase in the stimulus intensity (here it was a weight on a muscle) ...
2.3 Carbon-Based Molecules
2.3 Carbon-Based Molecules

... • Proteins are polymers of amino acid monomers. – Twenty different amino acids are used to build proteins in organisms. – Amino acids differ in side groups, or R groups. – Amino acids are linked by peptide bonds. ...
(1) GO enrichment analysis of molecular biological
(1) GO enrichment analysis of molecular biological

... Exposure to ionizing radiation (6Gy) induced pronounced G2/M arrest in ρ0 cells ...
Chapter 14 - Part I
Chapter 14 - Part I

... • e- transfer promotes proton pump and ATP synthesis in process called oxidative phosphorylation • Cells that require large amounts of energy such as the heart have large numbers of mitochondria ...
Validating the Location of Fluorescent Protein
Validating the Location of Fluorescent Protein

... highly regulated and for those that are not normally very abundant. An example is the overexpression of the tonoplast AVP1 H+-pyrophosphatase, which results in ectopic localization to additional endomembrane compartments and increased abundance of H+-ATPases at the plasma membrane (Li et al., 2005). ...
E. Coli
E. Coli

... mold, curing, and mounting the wells on a glass slides. The surface of the wells was then modified, followed by protein attachment. ...
Osteogenesis Imperfecta
Osteogenesis Imperfecta

... Intermittent administration of these drug would: • Increase bone mineral density and bone strength • Reduce the chance of getting a fracture ...
Tutorial 8 – Cytoskeleton
Tutorial 8 – Cytoskeleton

... causes the "GTP cap“ to hydrolyze GTP to GDP The GTP cap is lost - the GDP-carrying subunits are less tightly bound in the polymer and readily released from the free end The microtubule shrinks ...
Lecture 5
Lecture 5

... transfer or transformation makes universe more disordered. There is a quantitative measure of disorder, called entropy, whose value increases as disorder increases. Therefore, second law of thermodynamics states that every energy transfer or transformation makes universe more disordered. ...
Structures and Functions Lecture 2
Structures and Functions Lecture 2

... • Synaptotagmin protein binds Ca2+ and promotes fusion of synaptic vesicles with axon membrane • Exocytosis of neurotransmitter into synaptic cleft occurs • Higher impulse frequency  more released ...
Chapter 12 Nervous System Cells
Chapter 12 Nervous System Cells

... Neurotransmitters • Neurotransmitters—means by which neurons communicate with one another; there are more than 30 compounds known to be neurotransmitters, and dozens of others are suspected • Classification of neurotransmitters—commonly classified by these features: – Function—function of a neurotr ...
Document
Document

... C. Without araI, transcription of the ara operon cannot be activated. You might get a very low level of constitutive transcription. D. Without araO2 the repression of the ara operon could not occur. However, without araI, transcription of the ara operon cannot be activated. You might get a very low ...
1. The formation of a peptide bond between two amino acids is an
1. The formation of a peptide bond between two amino acids is an

... 24. Which of the following is least likely to result in protein denaturation? A) Altering net charge by changing pH B) Changing the salt concentration C) Disruption of weak interactions by boiling D) Exposure to detergents E) Mixing with organic solvents such as acetone 25. The interactions of ligan ...
C1. A constitutive gene is unregulated, which means that its
C1. A constitutive gene is unregulated, which means that its

... C. Without araI, transcription of the ara operon cannot be activated. You might get a very low level of constitutive transcription. D. Without araO2 the repression of the ara operon could not occur. However, without araI, transcription of the ara operon cannot be activated. You might get a very low ...
Chapter 12: Nervous Tissue
Chapter 12: Nervous Tissue

... – in resting membrane, inactivation gate of sodium channel is open & activation gate is closed (Na+ can not get in) – when threshold (-55mV) is reached, both open & Na+ enters – inactivation gate closes again in few ten-thousandths of second – only a total of 20,000 Na+ actually enter the cell, but ...
Cells 3
Cells 3

...  Within the winding channels of the smooth endoplasmic reticulum are the enzymes needed for the construction of molecules such as carbohydrates, lipids and steroids.  The smooth endoplasmic reticulum is prominent in liver cells, where it plays a role in the breakdown of substances such as alcohol, ...
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Signal transduction



Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of events inside the cell, creating a response. Depending on the cell, the response alters the cell's metabolism, shape, gene expression, or ability to divide. The signal can be amplified at any step. Thus, one signaling molecule can cause many responses.
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