Lesson Overview8.3 Cell Transport
Lesson OverviewCell TransportPassive TransportThe movement of materials across the cell membrane without usingcellular energy is called passive transport.
Lesson OverviewCell TransportDiffusionThe process by which particles move from an area of high concentration toan area of lower concentration is known as diffusion.- form of passive transport- particles move down the concentration gradient
Lesson OverviewCell TransportDiffusionHigh Conc.Low Conc.
Lesson OverviewDiffusionCell Transport
Lesson OverviewDiffusionCell Transport
Lesson OverviewCell TransportFacilitated DiffusionSome molecules that cannot directly diffuse across the membrane passthrough special protein channels in a process known as facilitateddiffusion.- protein channels are molecule specific- form of passive transport- particles move down concentration gradient
Lesson OverviewCell TransportOsmosis: An Example of FacilitatedDiffusionOsmosis is the diffusion of water through a selectively permeablemembrane.- water moves down concentration gradient- passive
Lesson OverviewCell TransportOsmosis: An Example of FacilitatedDiffusionHypertonic - higher concentration of solute; low concentration of solvent(water)Hypotonic - lower concentration of solute; high concentration of solvent(water)Isotonic - equal concentrations of solute
Lesson OverviewCell TransportHow Osmosis WorksHypotonicHypertonic
Lesson OverviewCell TransportHow Osmosis Works
Lesson OverviewCell TransportOsmotic PressureThe net movement of water in or out of a cell exerts a force known asosmotic pressure.
Lesson OverviewCell TransportOsmotic PressureBecause the cell is filled with salts, sugars, proteins, and other molecules, itis almost always hypertonic to fresh water. So if a cell is in fresh water, watertends to move quickly into the cell, causing it to swell or even burst.
Lesson OverviewCell TransportOsmotic PressureIn plants, the movement of water into the cell causes the central vacuole toswell, pushing cell contents out against the cell wall.
Lesson OverviewCell TransportOsmotic PressureCells in an isotonic solution experience no net gain or loss of water.
Lesson OverviewCell TransportOsmotic PressureIn a hypertonic solution, water rushes out of the cell, causing animal cells toshrink and plant cell vacuoles to collapse.
Lesson OverviewCell TransportActive TransportThe movement of materials against or up a concentration difference isknown as active transport.- requires energy (ATP).
Lesson OverviewCell TransportActive Transportactive transport of smallmolecules or ions happens viatransport proteins, or protein“pumps,” in the membrane.calcium, potassium, and sodiumions use this transport.- example: sodium potassiumpumpprotein shape changes areimportant in the process.
Lesson OverviewCell TransportActive Transport: Bulk TransportBulk Transport moves larger molecules and clumps of material across cellmembranes.- requires energy (ATP)- forms:1. endocytosisa. pinocytosisb. phagocytosis2. exocytosis
Lesson OverviewCell TransportEndocytosisprocess of taking material into the cell by vesicles or vacuoles
Lesson OverviewCell TransportEndocytosisTypes of endocytosis:1. phagocytosis - cytoplasm extensions surround a particle and package itwithin a food vacuole. The cell then engulfs it.Amoebas eat this way.means “cell eating”2. pinocytosis - cells form tiny pockets along the cell membrane.The pockets fill with liquid and pinch off to form vacuoles within the cell.means “cell drinking”
Lesson OverviewCell TransportExocytosismembrane of a vacuole fuses with the cell membrane, forcing the vacuolecontents out of the cell.
Lesson Overview Cell Transport Passive Transport. . Active Transport. The movement of materials . against or up . a concentration difference is known as . active transport. . Bulk Transport moves larger mo
Types of Transport There are 3 types of transport in cells: 1. Passive Transport: does not use the cell’s energy in bringing materials in & out of the cell 2. Active Transport: does use the cell’s energy in bringing materials in & out of the cell 3. Bulk Transport: involves the cell making me
of the cell and eventually divides into two daughter cells is termed cell cycle. Cell cycle includes three processes cell division, DNA replication and cell growth in coordinated way. Duration of cell cycle can vary from organism to organism and also from cell type to cell type. (e.g., in Yeast cell cycle is of 90 minutes, in human 24 hrs.)
UNIT-V:CELL STRUCTURE AND FUNCTION: 9. Cell- The Unit of Life: Cell- Cell theory and cell as the basic unit of life- overview of the cell. Prokaryotic and Eukoryotic cells, Ultra Structure of Plant cell (structure in detail and functions in brief), Cell membrane, Cell wall, Cell organelles: Endoplasmic reticulum, Mitochondria, Plastids,
Cell Transport : 19. word that means "cell" Name:_ Cell Transport Packet For questions 1-10, use Figure 1. Match the structure/process to the letter: 1. Phospholipid bilayer _ : 6. type of transport that does not require energy 8. solution the cell is placed in) .
Jan 21, 2020 · pertaining to the cell theory, structure and functions, cell types and modifications, cell cycle and transport mechanisms. This module has seven (7) lessons: Lesson 1- Cell Theory Lesson 2- Cell Structure and Functions Lesson 3- Prokaryotic vs Eukaryotic Cells Lesson 4- Cell Types and Cell
The Cell Cycle The cell cycle is the series of events in the growth and division of a cell. In the prokaryotic cell cycle, the cell grows, duplicates its DNA, and divides by pinching in the cell membrane. The eukaryotic cell cycle has four stages (the first three of which are referred to as interphase): In the G 1 phase, the cell grows.
Many scientists contributed to the cell theory. The cell theory grew out of the work of many scientists and improvements in the . CELL STRUCTURE AND FUNCTION CHART PLANT CELL ANIMAL CELL . 1. Cell Wall . Quiz of the cell Know all organelles found in a prokaryotic cell
Stent Type Stent Design Free Cell Area (mm2) Wallstent Closed cell 1.08 Xact Closed cell 2.74 Neuroguard Closed cell 3.5 Nexstent Closed cell 4.7 Precise Open cell 5.89 Protégé Open cell 20.71 Acculink Open cell 11.48 Stent Free Cell Area Neuroguard IEP Carotid Stent
Stent Type Stent Design Free Cell Area (mm2) Wallstent Closed cell 1.08 Xact Closed cell 2.74 Neuroguard Closed cell 3.5 Nexstent Closed cell 4.7 Precise Open cell 5.89 Protégé Open cell 20.71 Acculink Open cell 11.48 Neuroguard IEP Carotid Stent Stent Free Cell Area
Class-XI-Biology Cell Cycle and Cell Division 1 Practice more on Cell Cycle and Cell Division www.embibe.com CBSE NCERT Solutions for Class 11 Biology Chapter 10 Back of Chapter Questions 1. What is the average cell cycle span for a mammalian cell? Solution: The average cell cycle span o
Transport c. Active Transport d. Bulk/Vesic ular Transport 2. relate the structure and composition of the cell membrane to its function STEM_BIO11/12-Ig-h-12 3. explain transport mechanisms in cells (diffusion osmosis, facilitated transport, active transport) STEM_BIO11
Notes: Organelles Color/label Cell Diagrams. Cell Flip Book, Day 1 ; Cell Flip Book, Day 2 Finish Cell Flip Book Cell Lab – Comparing Plant and Animal Cells Finish Cell Lab . Cell City Analogy Review Sheet Finish Review Sheet (page 31) Notes: Transport Gummi Bear Lab, Day 1 ; Read/Ques
- May regulate transport of cations in/out of cells, role in cell growth, prevent cell wall breakdown, provide much of the cell wall's antigenic specificity Granular layer is between the cell wall and plasma membrane of cell Gram-positive cell wall Fig. 4.13b Cell wall: gram-negative bacteria Thin peptidoglycan layer and an outer
The cell cycle includes all of the events in the life of an individual cell, from cell division to the period when a cell is not dividing while it carries out it’s regular functions. We can thus divide the cell cycle into: A. Interphase: Period of cell cycle when cell is not dividing 1. G1 Phase: Cellular organelles begin to duplicate. 2.
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[The building block of thunderstorms is the thunderstorm cell. A thunderstorm can be made of one cell or multiple cells. A single-cell thunderstorm can be an ordinary cell or a supercell thunderstorm. Thunderstorms with more than one cell can be multi-cell clusters or multi-cell lines, which are also called squall lines.] Ordinary Cell As the .
cell cell cell cell cell cell Figure 7.4: Successive inter-arrival times of cells size depend upon the characteristics of the source. The cell delay variation tolerance is used in the generic cell rate algorithm (GCRA), discussed later on in section 7.7.1 of this Chapter, an
Prokaryotic vs. Eukaryotic Cells The Parts of a Cell (Organelles) Plant vs. Animal Cells The Cell Membrane . List the 3 types of passive transport and the 3 types of active transport in the chart below: Passive Transport Active Transport . Diffusion 1. When molecules diffuse across the cell
Grade (9-1) _ 58 (Total for question 1 is 4 marks) 2. Write ̇8̇ as a fraction in its simplest form. . 90. 15 blank Find the fraction, in its
which appear either in the Annual Book of ASTM Standards, Vol 01.05, or as reprints obtainable from ASTM. 1.2 In case of any conﬂict in requirements, the requirements of the purchase order, the individual material speciﬁcation, and this general speciﬁcation shall prevail in the sequence named. 1.3 The values stated in inch-pound units or SI units are to be regarded as the standard .