Unit 3 Resources
... Living cells maintain a (1) ___________ by controlling materials that enter and leave. Without this ability, the cell cannot maintain (2) _______________ and will die. The cell must regulate internal concentrations of water, (3) ______________ , and other nutrients and must eliminate waste products. ...
... Living cells maintain a (1) ___________ by controlling materials that enter and leave. Without this ability, the cell cannot maintain (2) _______________ and will die. The cell must regulate internal concentrations of water, (3) ______________ , and other nutrients and must eliminate waste products. ...
Plasma membrane
... Enzymatic activity – proteins may be enzymes that catalyze steps in metabolic pathway Signal transduction – protein is a receptor for chemical messenger (hormone). Conformational change in protein relays message to inside of cell Intercellular joining – membrane proteins of adjacent cells join toget ...
... Enzymatic activity – proteins may be enzymes that catalyze steps in metabolic pathway Signal transduction – protein is a receptor for chemical messenger (hormone). Conformational change in protein relays message to inside of cell Intercellular joining – membrane proteins of adjacent cells join toget ...
Vocab and Functions
... digestive enzymes – are responsible for digesting inside a cell; Found mainly in animal cells . They destroy worn-out or damaged organelles, get rid of waste materials and “swallow” ...
... digestive enzymes – are responsible for digesting inside a cell; Found mainly in animal cells . They destroy worn-out or damaged organelles, get rid of waste materials and “swallow” ...
Gene Section RGS2 (regulator of G protein signaling 2, 24kDa) -
... Canonical functions: RGS proteins bind to heterotrimeric G proteins by way of their RGS domain and act as GAPs (GTPase accelerating protein) to turn off G protein coupled receptor (GPCR) signals (Ross and Wilkie, 2000). RGS2 is unique in its selective GAP activity toward Galphaq and its low affinity ...
... Canonical functions: RGS proteins bind to heterotrimeric G proteins by way of their RGS domain and act as GAPs (GTPase accelerating protein) to turn off G protein coupled receptor (GPCR) signals (Ross and Wilkie, 2000). RGS2 is unique in its selective GAP activity toward Galphaq and its low affinity ...
Scientific Method
... Protein molecules are embedded in the lipid bilayer. Most of the proteins extend all the way through the bilayer, and are similar to channels. There are many different kinds of proteins in the membrane. Some of these proteins help transport materials in and out of the cell, while others help with c ...
... Protein molecules are embedded in the lipid bilayer. Most of the proteins extend all the way through the bilayer, and are similar to channels. There are many different kinds of proteins in the membrane. Some of these proteins help transport materials in and out of the cell, while others help with c ...
GROWTH
... extracellular a subunit indicate the cysteine-rich domains; dashed areas in the intracellular b subunit indicate the tyrosine kinase domains. IRS-1, insulin receptor substrate-1; GAP, GTPase-activating protein. ...
... extracellular a subunit indicate the cysteine-rich domains; dashed areas in the intracellular b subunit indicate the tyrosine kinase domains. IRS-1, insulin receptor substrate-1; GAP, GTPase-activating protein. ...
Quizon ch5-6-7-8new.doc
... 1. Which of the following processes does a cell use to take up molecules against their concentration gradient? a. simple diffusion b. facilitated diffusion c. active transport d. endocytosis e. Both the c and d are correct. 2. Proteins which act as catalysts of chemical reactions [in cells] are call ...
... 1. Which of the following processes does a cell use to take up molecules against their concentration gradient? a. simple diffusion b. facilitated diffusion c. active transport d. endocytosis e. Both the c and d are correct. 2. Proteins which act as catalysts of chemical reactions [in cells] are call ...
Section 3: Cell Organelles
... Describe the role of the nucleus in cell activities. Analyze the role of internal membranes in protein production. Summarize the importance of mitochondria in eukaryotic cells. Identify three structure in plant cells that are absent from animal cells. ...
... Describe the role of the nucleus in cell activities. Analyze the role of internal membranes in protein production. Summarize the importance of mitochondria in eukaryotic cells. Identify three structure in plant cells that are absent from animal cells. ...
Answer Key - TeacherWeb
... 12. A cell that requires a lot of energy might contain large numbers of mitochondria. (Remember: Energy = ATP) 13. The organelles associated with plant photosynthesis are the chloroplasts. 14. Plant cells have a large membrane-bound space in which water, waste products, and nutrients can be stored. ...
... 12. A cell that requires a lot of energy might contain large numbers of mitochondria. (Remember: Energy = ATP) 13. The organelles associated with plant photosynthesis are the chloroplasts. 14. Plant cells have a large membrane-bound space in which water, waste products, and nutrients can be stored. ...
Study Guide Answers
... 1. What is the smallest unit that can carry on all functions of life? cells 2. What is the major difference between prokaryotes and eukaryotes? Prokaryotes have no nucleus 3. Which organelle makes most of ATP during cellular respiration? Mitochondria 4. Which process moves water molecules across the ...
... 1. What is the smallest unit that can carry on all functions of life? cells 2. What is the major difference between prokaryotes and eukaryotes? Prokaryotes have no nucleus 3. Which organelle makes most of ATP during cellular respiration? Mitochondria 4. Which process moves water molecules across the ...
Cell Structure and Functions
... (DNA with histones). (3) Chromatin during interphase with centromere. (4) Condensed chromatin during prophase. (Two copies of the DNA molecule are ...
... (DNA with histones). (3) Chromatin during interphase with centromere. (4) Condensed chromatin during prophase. (Two copies of the DNA molecule are ...
2 Cells and Membranes
... Cell Wall: Made of a murein (not cellulose). Provides structure to the cell, prevents explosion by osmotic pressure. Plasma membrane: Controls the entry and exit of substances, pumping some of them in by active transport. Cytoplasm: Contains all the enzymes needed for all metabolic reactions, since ...
... Cell Wall: Made of a murein (not cellulose). Provides structure to the cell, prevents explosion by osmotic pressure. Plasma membrane: Controls the entry and exit of substances, pumping some of them in by active transport. Cytoplasm: Contains all the enzymes needed for all metabolic reactions, since ...
Study Guide for AP Biology Mid-term Biochemistry What is
... 10. Which component is responsible for active transport? 11. The main function of water in photophosphorylation is? 12. Which pathway for the transformation of cellular energy most likely evolved first? 13. What two substances are made during the light-dependent reactions and are used to power the C ...
... 10. Which component is responsible for active transport? 11. The main function of water in photophosphorylation is? 12. Which pathway for the transformation of cellular energy most likely evolved first? 13. What two substances are made during the light-dependent reactions and are used to power the C ...
BS2550 Lecture Notes cAMP
... exert these effects via changing the level of cAMP within the cell. (>structure of cAMP<) The effects of cAMP are, in turn, mediated by cAMP-dependent protein kinase (PKA) which phosphorylates specific Thr/Ser residues of key regulatory enzymes leading to either the activation or inactivation of the ...
... exert these effects via changing the level of cAMP within the cell. (>structure of cAMP<) The effects of cAMP are, in turn, mediated by cAMP-dependent protein kinase (PKA) which phosphorylates specific Thr/Ser residues of key regulatory enzymes leading to either the activation or inactivation of the ...
Midterm Review Key 2014
... Chapter 7 – A View of the Cell 1. Cell theory – all organisms made of cells, all cells come from pre-existing cells, cells are the basic unit of function and structure. 2. Folded membranes are an advantage because they provide more surface area for materials to go in or out of the cell. 3. Electron ...
... Chapter 7 – A View of the Cell 1. Cell theory – all organisms made of cells, all cells come from pre-existing cells, cells are the basic unit of function and structure. 2. Folded membranes are an advantage because they provide more surface area for materials to go in or out of the cell. 3. Electron ...
Chapter 16
... • To know evolution, you must know something about genetics & heritable traits …before that, you need to understand, cellular reproduction, proteins, & DNA …before that, how a cell works, how a protein comes about, what makes up DNA …membranes, organelles …even down to molecules, atoms, etc. ...
... • To know evolution, you must know something about genetics & heritable traits …before that, you need to understand, cellular reproduction, proteins, & DNA …before that, how a cell works, how a protein comes about, what makes up DNA …membranes, organelles …even down to molecules, atoms, etc. ...
Concept Review Questions and Answers—Chapter 4
... 14. Describe what happens during the process of endocytosis. Microbes or molecules are surrounded by a portion of the plasma membrane. Once inside the cell lysosomes add their digestive enzymes to the phagocytic vacuole, which speeds the breakdown of the contents of the vacuole. Finally, the vacuole ...
... 14. Describe what happens during the process of endocytosis. Microbes or molecules are surrounded by a portion of the plasma membrane. Once inside the cell lysosomes add their digestive enzymes to the phagocytic vacuole, which speeds the breakdown of the contents of the vacuole. Finally, the vacuole ...
Physio study guide unit 2
... What two types of receptors can ACh bind to? What actions result from the binding of ACh at these two different receptors? How many ACh bind to an ACh receptor? What ion will flow through? What type of event would this trigger on a post-synaptic cell? What are Ionotropic receptors? That is, how do t ...
... What two types of receptors can ACh bind to? What actions result from the binding of ACh at these two different receptors? How many ACh bind to an ACh receptor? What ion will flow through? What type of event would this trigger on a post-synaptic cell? What are Ionotropic receptors? That is, how do t ...
01 - TeacherWeb
... _____ 8. The benefits of being multicellular include a. small size, long life, and cell specialization. b. generalized cells, longer life, and ability to prey on small animals. c. larger size, more enemies, and specialized cells. d. longer life, larger size, and specialized cells. _____ 9. In eukary ...
... _____ 8. The benefits of being multicellular include a. small size, long life, and cell specialization. b. generalized cells, longer life, and ability to prey on small animals. c. larger size, more enemies, and specialized cells. d. longer life, larger size, and specialized cells. _____ 9. In eukary ...
III. Exam Section III Intercellular Communication 1. Review of
... a. Specialization in the ligand-receptor interaction 1. Specialization: Ligand-Receptor affinity and rate of turnover 2. Integration: Cells are exposed to hundreds of signals but gene expression hardwires them to respond to a subset of signals b. Single target mechanism pathways and convergent cross ...
... a. Specialization in the ligand-receptor interaction 1. Specialization: Ligand-Receptor affinity and rate of turnover 2. Integration: Cells are exposed to hundreds of signals but gene expression hardwires them to respond to a subset of signals b. Single target mechanism pathways and convergent cross ...
Microscope and Cells
... Cells are microscopic, they are visible only with light microscopes. Most of their size ranges from 1-100 µm. The cells are small, because they have to be able to carry materials from one side of the cell to the next in a short period of time. Cells must have a large enough surface area to be able t ...
... Cells are microscopic, they are visible only with light microscopes. Most of their size ranges from 1-100 µm. The cells are small, because they have to be able to carry materials from one side of the cell to the next in a short period of time. Cells must have a large enough surface area to be able t ...
The Cell Membrane is a Fluid Mosaic
... When you hear the word cholesterol, the first thing you probably think of is that it is bad. However, cholesterol is actually a very important component of cell membranes. Cholesterol molecules are made up of four rings of hydrogen and carbon atoms. They are hydrophobic and are found among the hydr ...
... When you hear the word cholesterol, the first thing you probably think of is that it is bad. However, cholesterol is actually a very important component of cell membranes. Cholesterol molecules are made up of four rings of hydrogen and carbon atoms. They are hydrophobic and are found among the hydr ...
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.