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Tonicity

Campbell's Biology 9 Edition Unit 2 Outline

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Biology
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Cell Biology
Cytoskeleton
organelles
cell
Endoplasmic reticulum
Tonicity
Microtubule
Cytoplasm
Water potential
Intracellular transport

Unit 2 Info Be aware of support structures in cytoskeleton Microtubules Act as transport feature as well Easily broken down and reformed Microfilaments: Circulation of cytoplasm Intermedia filaments support for cytoskeleton Any shape change involves cytoskeleton All three assist in the change in shape Water potential Depends on solute concentration and pressure Presence of solutes makes water potential lower Pressure can set the potential to zero evening everything out Hypotonic Hypertonic Cis receives the contents in the Golgi Trans transports the contents in the Golgi Rough ER has ribosomes so they construct proteins Smooth ER is making complex carbs and lipids Hormones are made of lipids

Campbell's Biology 9 Edition Chapter 7 Outline

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Biology
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Membrane biology
Cell Biology
diffusion
Membrane technology
Osmosis
Water technology
Tonicity
Cell membrane
Passive transport
Microtubule
Semipermeable membrane
cell

Ch.7 Notes and Lecture Date Notes Questions 10/7/15 Unless something there is something non soluble only a helper protein can help it get through Phospholipid Bilayer Endocytosis is when a cell membrane can take/release atoms. Fatty acid tails will not associate with ions Diffusion when high concentration to low concentration Active Transport Learn proteins on the membrane Proteins make membrane selectively permeable 10/8/15 Passive transport, know all forms Diffusion as well Water can pass directly though phospholipid membrane Pores allow passage for chemicals to enter the cell. Diagram, #1 Facilitated diffusion: Use of proteins on the membrane to take in and put out chemicals. Osmosis: diffusion of water through selectively permeable barrier. Diagram 2

lab

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Chemistry
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Gummy bear
Tonicity
Gelatin
Osmosis
Gummi candy

Placing gummy bears into an unknown solution in order to differentiate between hypertonic, hypotonic, and isotonic solutions. Gummy Bear Lab Experiment West Broward High School Biology 1 Honors Submitted by: Anabel Vazquez Blk#4 October 6, 2015 Problem: Are the gummy bears hypertonic, hypotonic, or isotonic to the unknown solution? Research: Hypertonic means that the inside of the gummy bear has a lower concentration of water molecules than the solution, causing water to enter the gummy bear. Hypotonic means that the inside of the gummy bear has a higher concentration of water molecules than the solution, causing water to leave the gummy bear.

quiz 7

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Biology
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Membrane biology
Cell Biology
diffusion
Membrane technology
Transport proteins
Tonicity
Osmosis
Cell membrane
Na+/K+-ATPase
cell
Active transport
Semipermeable membrane

Which of the following statements is NOT true? a. Phospholipids can move laterally in a membrane but rarely move from the extracellular to the intracellular side. b. Plasma membranes are more like a fluid than a solid. c. In a plasma membrane, the hydrophobic portion is oriented to the inside of the membrane. d. Lipid molecules make the cell membrane relatively impermeable to water. e. Saturated phospholipids make a more fluid membrane.

BIO CH 7 TEST

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

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

Problems Water Potential

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Biology
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Biology
Cell Biology
Membrane biology
Solutions
diffusion
Water technology
Osmosis
Turgor pressure
Tonicity
Water potential
Osmotic pressure
Molecular diffusion
health
Technology

Practice Problems ? Osmosis and Water potential Use this key to answer all the problems below. If you choose B or C, rewrite the statement so that it is complete and true. A = TRUE B = FALSE C = NOT ENOUGH INFORMATION PROBLEM ONE: The initial molar concentration of the cytoplasm inside a cell is 2M and the cell is placed in a solution with a concentration of 2.5M. Initially, free energy is greater inside the cell than outside It is possible that this cell is already in equilibrium with its surroundings. Initially, solute concentration is greater outside the cell than inside. Water will enter the cell because solute potential is lower inside the cell than outside.

campbell_ap_bio_practice_test_ch7

Subject: 
Biology
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Biology
Membrane biology
Cell Biology
diffusion
Integral membrane proteins
Biological matter
Osmosis
Cell membrane
Turgor pressure
Tonicity
Semipermeable membrane
Carrier protein
health

Chapter?7 Membrane?Structure?and?Function Multiple-Choice?Questions 1) Who?was/were?the?first?to?propose?that?cell?membranes?are?phospholipid?bilayers? A) H.?Davson?and?J.?Danielli B) I.?Langmuir C) C.?Overton D) S.?Singer?and?G.?Nicolson E) E.?Gorter?and?F.?Grendel Answer: E Topic: Concept?7.1 Skill: Knowledge/Comprehension 2) Who?proposed?that?membranes?are?a?phospholipid?bilayer?between?two?layers?of?hydrophilic?proteins? A) H.?Davson?and?J.?Danielli B) I.?Langmuir C) C.?Overton D) S.?Singer?and?G.?Nicolson E) E.?Gorter?and?F.?Grendel Answer: A Topic: Concept?7.1 Skill: Knowledge/Comprehension 3) Who?proposed?that?the?membrane?is?a?mosaic?of?protein?molecules?bobbing?in?a?fluid?bilayer?of?phospholipids? A) H.?Davson?and?J.?Danielli B) I.?Langmuir C) C.?Overton

AP biology review chapter 6 and 7

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Biology
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Biology
organelles
Membrane biology
Cell Biology
Endomembrane system
Tonicity
cell
Vesicle
Osmosis
Turgor pressure
Golgi apparatus
Lysosome
health

DO NOT WRITE ON THIS TEST- USE ANSWER DOCUMENT FORM: A 1 AP Biology-Chapter #6 & 7 Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. All of the following are part of a prokaryotic cell except a. DNA. b. a cell wall. c. a plasma membrane. d. ribosomes. e. an endoplasmic reticulum. 2. The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that a. plant cells are capable of having a much higher surface-to-volume ratio than animal cells. b. plant cells have a much more highly convoluted (folded) plasma membrane than animal cells. c. plant cells contain a large vacuole that

Chapter 7: Cellular Structure and Function

Subject: 
Biology
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Biology
Membrane biology
diffusion
Cell Biology
organelles
Transport phenomena
Osmosis
Cell membrane
Tonicity
Passive transport
Semipermeable membrane
Biological membrane
health

Chapter 7: Cellular Structure and Function THE CELL THEORY -All organisims are composed of one or more cells -The cell is the basic unit of structure and organization of organisms -All cells come from pre-existing cells PROKARYOTIC CELL -Simple structure -Contains a plasma membrane -Does not contain membrane bound organelles EUKARYOTIC CELL -Contains a plasma membranre -Contains membrane-bound organelles PLASMA MEMBRANE -Thin, flexible boundary between the cell and its enviornment -Allows nutrients into the cell -Allows waste to leave the cell SELECTIVE PERMEABILITY -The plasma membrane controls the movement of substances into and out of the cell -The plasma membrane is composed of the phospholipid bilayer FLUID MOSAIC MODEL

biology

Subject: 
Biology
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Biology
organelles
Cell Biology
Membrane biology
microbiology
Plant Anatomy
cell
Cytoplasm
Eukaryote
mitochondrion
Biological membrane
Tonicity
health

Miles Diehl 5th period 10/26/2013 All living organisms are composed of one or more cells. The cell is the most basic unit of structure, function, and organization in all organisms. All cells come from pre-existing, living cells. It is important because it describes the properties of cells, and the basic unit of structure in every living thing. Matthias Jakob Schleiden, Theodor Schwann, and Rudolf Virchow together formulated the cell theory.

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