Structure and Function of Cells
... Strong, stiff, nonliving layer outside the cell membrane; can be made of cellulose Outermost living layer of the cell; elastic and flexible; contains pores Region between the nucleus and the cell membrane; consists of a jellylike substance that contains many organelles Large, oval structure in the c ...
... Strong, stiff, nonliving layer outside the cell membrane; can be made of cellulose Outermost living layer of the cell; elastic and flexible; contains pores Region between the nucleus and the cell membrane; consists of a jellylike substance that contains many organelles Large, oval structure in the c ...
Cell Membrane aka Plasma Membrane
... (attract water) Tails are made of fatty acids and are hydrophobic (repel water) Make up a bilayer where tails point inward toward each other Can move laterally to allow small molecules (O2, CO2, & H2O to enter) copyright cmassengale ...
... (attract water) Tails are made of fatty acids and are hydrophobic (repel water) Make up a bilayer where tails point inward toward each other Can move laterally to allow small molecules (O2, CO2, & H2O to enter) copyright cmassengale ...
Transport in dendrites can also occur. The mechanisms are similar
... ATP production can occur locally near the sites of energy use. The major use of ATP in neurons is to provide energy to establish and maintain ionic gradients across nerve cell membranes. The main protein involved in maintaining ionic gradients is the Sodium potassium ATPase. This moves sodium out of ...
... ATP production can occur locally near the sites of energy use. The major use of ATP in neurons is to provide energy to establish and maintain ionic gradients across nerve cell membranes. The main protein involved in maintaining ionic gradients is the Sodium potassium ATPase. This moves sodium out of ...
Active Transport
... Active transport is the movement of materials through a membrane AGAINST a concentration ____________ gradient. Active transport requires ____________. ENERGY ...
... Active transport is the movement of materials through a membrane AGAINST a concentration ____________ gradient. Active transport requires ____________. ENERGY ...
Chapter 26
... – Proteins and RNA are leaving the nucleus – Proteins are trying to get into the nucleus – Some proteins are really big ...
... – Proteins and RNA are leaving the nucleus – Proteins are trying to get into the nucleus – Some proteins are really big ...
intracellular protein synthesis, post
... Alfred L. G o l d b u . Dept. of Cell Biology, Harvard Medical School, Boston, MA 02115, U.S.A. ...
... Alfred L. G o l d b u . Dept. of Cell Biology, Harvard Medical School, Boston, MA 02115, U.S.A. ...
Integral membrane proteins and free electron lasers
... statistically highly underrepresented in the PDB, with only 541 unique structures in the ‘Membrane Proteins of Known Structure Database’ (http://blanco.biomol.uci.edu/ mpstruc/). Why the dearth of structures of such important and fascinating macromolecules? Multiple nontrivial technical obstacles ex ...
... statistically highly underrepresented in the PDB, with only 541 unique structures in the ‘Membrane Proteins of Known Structure Database’ (http://blanco.biomol.uci.edu/ mpstruc/). Why the dearth of structures of such important and fascinating macromolecules? Multiple nontrivial technical obstacles ex ...
Chapter 5 Lesson 1 and 2 PPt
... 1. Explain the bilayer structure of cellular membranes. 2. Identify the function of other molecules found in the cellular membrane. 3. Describe a cell’s inside environment. ...
... 1. Explain the bilayer structure of cellular membranes. 2. Identify the function of other molecules found in the cellular membrane. 3. Describe a cell’s inside environment. ...
BIO STUDY GUIDE - Biochemistry and Cells
... 1. Which of the four main types of organic molecules are polymers? 2. What does the term organic mean? 3. What is the valence number of electrons for Carbon? 4. Proteins are made of what? 5. Enzymes fall into which of the four main classes of organic molecules? 6. Bases have what pH? Acids have what ...
... 1. Which of the four main types of organic molecules are polymers? 2. What does the term organic mean? 3. What is the valence number of electrons for Carbon? 4. Proteins are made of what? 5. Enzymes fall into which of the four main classes of organic molecules? 6. Bases have what pH? Acids have what ...
The Plasma Membrane
... Endocytosis - taking substances into the cell (pinocytosis for water, phagocytosis for solids) Exocytosis - pushing substances out of the cell, such as the removal of waste Sodium-Potassium Pump - pumps out 3 sodiums for ever 2 potassium's taken in against gradient ...
... Endocytosis - taking substances into the cell (pinocytosis for water, phagocytosis for solids) Exocytosis - pushing substances out of the cell, such as the removal of waste Sodium-Potassium Pump - pumps out 3 sodiums for ever 2 potassium's taken in against gradient ...
Basic features of all cells
... of higher concentration to the region of lower concentration. • Facilitated diffusion: big and/or polar molecules (ions through channel proteins, sugars, amino acids by transmembrane transporters; aquaporins for facilitated diffusion of water). ...
... of higher concentration to the region of lower concentration. • Facilitated diffusion: big and/or polar molecules (ions through channel proteins, sugars, amino acids by transmembrane transporters; aquaporins for facilitated diffusion of water). ...
GDI
... isoprenyl anchor and thereby keeps the Rab in a soluble cytosolic form. 2.Membrane attachment of Rabs requires the function of a GDF that dissociates the GDI–Rab complex and allows the prenyl anchor to be inserted into the membrane. 3.Specific GEFs exchange the bound GDP for GTP, thereby activating ...
... isoprenyl anchor and thereby keeps the Rab in a soluble cytosolic form. 2.Membrane attachment of Rabs requires the function of a GDF that dissociates the GDI–Rab complex and allows the prenyl anchor to be inserted into the membrane. 3.Specific GEFs exchange the bound GDP for GTP, thereby activating ...
Quantitative protein abundance measurements
... sucrose gradient protocol. Extracted samples are spiked with known amounts of labeled peptides (used as internal references), followed by trypsin digestion and analyzed by LCMS/MS in the selected reaction monitoring mode (SRM). ...
... sucrose gradient protocol. Extracted samples are spiked with known amounts of labeled peptides (used as internal references), followed by trypsin digestion and analyzed by LCMS/MS in the selected reaction monitoring mode (SRM). ...
Objective: You will be able to list the parts of the cell theory.
... • Think back to the activity in which you created the cell park • How can you modify your park to include the structures and functions of the endomembrane system? • Write a small paragraph describing the endomembrane system • Include a drawing of just the endomembrane system ...
... • Think back to the activity in which you created the cell park • How can you modify your park to include the structures and functions of the endomembrane system? • Write a small paragraph describing the endomembrane system • Include a drawing of just the endomembrane system ...
Cell Transport notes
... A solute moves through the interior of a protein ( facilitated diffusion) It is a two-way transport The net direction of movement at a given time depends on how many molecules or ions of the solute are making random contact with vacant binding sites in those proteins ...
... A solute moves through the interior of a protein ( facilitated diffusion) It is a two-way transport The net direction of movement at a given time depends on how many molecules or ions of the solute are making random contact with vacant binding sites in those proteins ...
Parts of a Eukaryotic Cell - Downey Unified School District
... Cytoskeleton – the scaffolding Provides the structural support for a cell Made of • Microfilaments-small threads of actin protein. Responsible for cell movement ...
... Cytoskeleton – the scaffolding Provides the structural support for a cell Made of • Microfilaments-small threads of actin protein. Responsible for cell movement ...
BY 330 Summer 2015Mock Exam 2 Ten molecules of
... 14. A membrane-bound vesicle/endosome forms to bring molecules into the cell during endocytosis. The (luminal, cytoplasmic) side of the vesicle contains high amounts of phosphotidyl-choline. Once this vesicle enters the cells, actin fibers will pull it to where it needs to go. If the vesicle is invo ...
... 14. A membrane-bound vesicle/endosome forms to bring molecules into the cell during endocytosis. The (luminal, cytoplasmic) side of the vesicle contains high amounts of phosphotidyl-choline. Once this vesicle enters the cells, actin fibers will pull it to where it needs to go. If the vesicle is invo ...
Lecture 21-Kumar - Rutgers New Jersey Medical School
... The model for membrane structure is known as the fluid mosaic model. Peripheral proteins occur on the inner or outer face of the membrane and integral proteins extend through both lipid layers. Membrane bound enzymes occur allowing structured metabolic pathways. Glycoproteins form the glycocalyx and ...
... The model for membrane structure is known as the fluid mosaic model. Peripheral proteins occur on the inner or outer face of the membrane and integral proteins extend through both lipid layers. Membrane bound enzymes occur allowing structured metabolic pathways. Glycoproteins form the glycocalyx and ...
Cell Transport Mechanisms
... 1. Homeostasis - a condition of biological balance. Living things have a variety of strategies for keeping things steady. Ex. Body temperature, heart rate, fluid levels, various hormones. 2. Selectively permeable– This term describes a property of the cell membrane. Only certain things can come in a ...
... 1. Homeostasis - a condition of biological balance. Living things have a variety of strategies for keeping things steady. Ex. Body temperature, heart rate, fluid levels, various hormones. 2. Selectively permeable– This term describes a property of the cell membrane. Only certain things can come in a ...
The Cell Membrane
... – Protein channels: allow objects to pass – Enzymes: speed up chemical reactions – Markers (carb chains): cell recognition; fight disease ...
... – Protein channels: allow objects to pass – Enzymes: speed up chemical reactions – Markers (carb chains): cell recognition; fight disease ...
Slide 1
... Facilitated Diffusion Some material just can’t get through the membrane without a little help. Carrier molecules are happy to lend a hand. This does not use any energy. FYI only ...
... Facilitated Diffusion Some material just can’t get through the membrane without a little help. Carrier molecules are happy to lend a hand. This does not use any energy. FYI only ...
SNARE (protein)
SNARE proteins (an acronym derived from ""SNAP (Soluble NSF Attachment Protein) REceptor"") are a large protein superfamily consisting of more than 60 members in yeast and mammalian cells. The primary role of SNARE proteins is to mediate vesicle fusion, that is, the fusion of vesicles with their target membrane bound compartments (such as a lysosome). The best studied SNAREs are those that mediate docking of synaptic vesicles with the presynaptic membrane in neurons. These SNAREs are the targets of the bacterial neurotoxins responsible for botulism and tetanus.