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Membrane biology

AP Biology Notes Chapter 11 (Campbell/Reece)

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Biology
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Biology
Cell Biology
Signal transduction
Cell Signaling
Membrane biology
Neurochemistry
Cell surface receptor
Second messenger system
G protein-coupled receptor
Receptor
CAMP-dependent pathway
G protein
health

Chapter 11 ? Cell Communication Overview: The Cellular Internet The trillions of cells in a multicellular organism must communicate with each other to coordinate their activities. There are networks of communication between cells ? can be very complicated There are Universal Mechanisms of cellular regulation (and communication) ? this is further evidence that all life is related (evolutionarily). 11.1 External Signals are converted to responses within the cell What do the cells say to each other? Evolution of Cell Signaling: One thing they talk about is sex/reproduction. Example: Yeast cells: (figure 11.2) There are two genders or mating types ? ?a? and ?alpha? Type ?a? cells secrete ?a? factor which can bind on specific receptors on the ?alpha? cell

AP bio summer hw ch 3 questions

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Biology
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Biology
Cell Biology
Membrane biology
organelles
metabolism
Plant physiology
cell
Active transport
organism
Photosynthesis
Eukaryote
Prokaryote
health

AP Biology Summer Assignment Unit 3: The Cell Ch. 6- Describe the similarities and differences between prokaryotic and eukaryotic cells. Then, select 3 eukaryotic cell organelles that you think you will enjoy studying. For each one, draw and explain the function of this organelle and tell what you find most interesting about it.

Cell Analogy

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Biology
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organelles
Cell Biology
Membrane biology
cell
Eukaryote
Cytoplasm
plant cell
Lysosome
mitochondrion
Endoplasmic reticulum
Golgi apparatus
health
Technology

Name: __________________ Hr: _____ Cell Analogy Objective: Using what you have learned about cells and cell organelles create and draw an analogy of a cell. You may use any object that you want to compare with a cell and its many parts. For example: a school bus. Nucleus = driver, cytoplasm = seats, etc. Before you draw, answer these questions: What are you comparing your cell to? _____________________________________ Is your cell a plant cell or animal cell? _______________________________ 3. Define these terms: Prokaryote: Eukaryote: 4. Is your cell a prokaryote or a eukaryote? ___________________________ Fill in the following chart. You only need to choose 10 organelles to place in your analogy. Organelle Function/ Job

exam 2.2

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Biology
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Membrane biology
organelles
Cell Biology
cellular respiration
Integral membrane proteins
Signal transduction
Vesicle
mitochondrion
Endomembrane system
Cell membrane
Receptor
health

Introduction to Cell Biology Name: October 28, 2010 Student ID: Exam II - Version 1 Section 1: Complete each sentence with one of the two answers (A / B) (3 points each). 1. donate high-energy electrons for synthesis of ATP. A) NAD+ B) NADH 2. Modern eucaryotes depend on mitochondria to generate most of the cell?s ATP. A single molecule of glucose can generate molecules of ATP. A) 30 B) 36 3. gradient serves as an energy store and is used to drive the synthesis of ATP by the ATP synthase. A) Sodium B) Proton 4. The chemiosmotic mechanism of ATP synthesis in mitochondria is called . A) oxidative phosphorylation B) electron transfer 5. The cytochrome oxidase is a protein complex that receive electron from . A) cytochrome b-c1 complex

Campbell Biology Test Bank Chapter 11

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Biology
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Cell Biology
Cell Signaling
Signal transduction
Membrane biology
Receptors
G protein-coupled receptor
Cell surface receptor
Second messenger system
Protein kinase
Steroid hormone receptor
Tyrosine kinase
health

Campbell's Biology, 9e (Reece et al.) Chapter 11 Cell Communication Students will encounter the topic of cell signaling repeatedly in this course and throughout their studies of biology. Therefore, the more confident they are regarding the basic principles, the more successful they are liable to be when encountering the topic. This chapter includes more higher-skill-level questions and makes connections to the principle of evolution as well as to other chapters of the text. Multiple-Choice Questions 1) Using the yeast signal transduction pathways, both types of mating cells release the mating factors. These factors bind to specific receptors on the correct cells, A) which induce changes in the cells that lead to cell fusion.

Campbell Biology Test Bank Chapter 7

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Biology
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Membrane biology
Cell membrane
Lipid bilayer
Membrane potential
Osmosis
Facilitated diffusion
Lipid raft
Red blood cell
Biological membrane
Semipermeable membrane
Membrane protein
health

Campbell's Biology, 9e (Reece et al.) Chapter 7 Membrane Structure and Function Membranes and membrane transport are fundamental to cellular life. The concepts in this chapter require integration of concepts from previous chapters: the nature of water and hydrophobic versus hydrophilic molecules, the properties of lipid molecules and their role in regulating membrane fluidity, and the roles of proteins and carbohydrates in membrane function. The concepts of ion transport and electrochemical gradients across membranes are important foundations for the following chapters on energy metabolism. Finally, the bulk transport phenomena have important clinical significance in the immune system, during invasion by pathogens, and in cell signaling. Multiple-Choice Questions

Cell Biology Review

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Biology
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organelles
Membrane biology
Cell Biology
microbiology
Cell membrane
cell
Endoplasmic reticulum
Vesicle
mitochondrion
Golgi apparatus
Biological membrane
health

David Kim 4/2/14 Dr. Oliveira AP Biology All cells have plasma membranes, cytosol, chromosomes and ribosomes. Prokaryotic cells do not have nuclei so the genetic information is in what is called the nucleoid. Prokaryotes also lack membrane bound organelles. Eukaryotic cells have genetic information known as DNA bound by a nuclear envelope. They also have membrane bound organelles like the Endoplasmic Reticulum and Golgi apparatus.

Biology vocabulary

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cellular respiration
metabolism
organelles
Membrane biology
Plant physiology
Cell membrane
Glycolysis
mitochondrion
Photosynthesis
cell
Mitochondrial matrix
health

Catabolic Reactions -These types of reactions break down large molecules into smaller ones. These reactions release energy. Anabolic Reactions -These types of reactions build large molecules from smaller components. These reactions consume energy. ATP-The main form of cellular energy. These molecules have a structure that is easy to form and easy to break to access the stored energy. Entropy - A measure of the disorder of a system. The amount of free energy lost to the environment is an example Polarity - Uneven distribution of charges across a molecule. Hydrogen Bonding - Attraction between positive charge on a hydrogen in a dipole and the negative end of another molecule. Think water! Adhesion - The attraction of a water molecule to another substance

Midterm Overview Bio

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Biology
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Cell Biology
cell cycle
organelles
Membrane biology
Cell membrane
Abiogenesis
Osmosis
mitosis
metabolism

You are allowed 3?X 5? ?cheat?/index card (both sides) Format: ~110 ABCD 3 Problems (rule of 70, ? live, organic diagram drawing 2 Essays, chosen from a menu of ~6 EC estimated score, question bank, max of 4% 1 Biology and Science- key terms, what is life and how did it get started? ...the cell basics of scientific method and terms applied to it 15 Evolution- evidence and key terms, purpose of sex Lamarck vs Darwin (acquired vs selected) Darwin vs Gould (gradualism vs punctuated equilibrium- fitness and luck) 16 Populations- species as a group concept, sex and variation, speciation, 17 Earth History- Timeline ?qualitative? knowledge of ?greatest hits? (timeline handout) Primates- up into the trees to form primates and as apes coming

Cell Membrane

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Biology
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Biology
Membrane biology
Cell membrane
Facilitated diffusion
Osmosis
Carrier protein
Membrane protein
Lipid bilayer
Passive transport
Cytosol
Active transport
Tonicity
health

Cell Membrane Fluid Mosaic Model: Cell membranes consist of a fluid formed by a phospholipid bilayer and a ?mosaic?, or patchwork, of proteins Phospholipid: Polar and hydrophilic head, nonpolar and hydrophobic fatty acid tail Cell membrane also called plasma membrane Outside the membrane there is interstitial fluid, which is a salty liquid Inside the membrane there is the cytosol, which is mostly water. The cytosol is also the water portion of the cytoplasm Phospholipid bilayer: Formed since the hydrophilic heads form hydrogen bonds with water, causing the heads to face the water on either side. Since the fatty acid tails are hydrophobic, they cluster together within the bilayer

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