Types of cell transport and solutions
- 1. TYPES OF CELLTYPES OF CELL TRANSPORT ANDTRANSPORT AND SOLUTIONSSOLUTIONS Chapter 7Chapter 7
- 2. CELL TRANSPORTCELL TRANSPORT 1.1. DiffusionDiffusion 2.2. OsmosisOsmosis 3.3. Facilitated DiffusionFacilitated Diffusion 4.4. Active TransportActive Transport a. Pinnocytosisa. Pinnocytosis b. Phagocytosisb. Phagocytosis c. Exocytosisc. Exocytosis
- 3. DIFFUSIONDIFFUSION the movement of molecules from areas of highthe movement of molecules from areas of high concentration to areas of lower concentrationconcentration to areas of lower concentration
- 4. OSMOSISOSMOSIS The diffusion of WaterThe diffusion of Water
- 5. FACILITATED DIFFUSIONFACILITATED DIFFUSION diffusion through carrier proteins withindiffusion through carrier proteins within cell membranes.cell membranes.
- 6. ACTIVE TRANSPORTACTIVE TRANSPORT When cells must move materials in anWhen cells must move materials in an opposite direction - against aopposite direction - against a concentration gradient. It requiresconcentration gradient. It requires Energy.Energy. Proteins or Pumps are found in the cellProteins or Pumps are found in the cell membrane transport molecules acrossmembrane transport molecules across the membrane.the membrane.
- 7. Molecular TransportMolecular Transport - Proteins are used to- Proteins are used to move small molecules such as calcium,move small molecules such as calcium, potassium, and sodium ions across thepotassium, and sodium ions across the membranemembrane
- 8. EndocytosisEndocytosis - cell takes in large particles by engulfing- cell takes in large particles by engulfing themthem PhagocytosisPhagocytosis - "cell eating" - extensions off cytoplasm surround- "cell eating" - extensions off cytoplasm surround a particle and package it within a food vacuole and then the cella particle and package it within a food vacuole and then the cell engulfs it. Ex. Amoebas use this process.engulfs it. Ex. Amoebas use this process. PinocytosisPinocytosis - the process of taking up liquid from the- the process of taking up liquid from the surrounding environment. Tiny pockets form along thesurrounding environment. Tiny pockets form along the membrane, fill with liquid, and pinch off.membrane, fill with liquid, and pinch off. ExocytosisExocytosis - cell gets rid of particles, opposite of- cell gets rid of particles, opposite of endocytosisendocytosis
- 9. TYPES OF SOLUTIONSTYPES OF SOLUTIONS 1.1. Isotonic SolutionIsotonic Solution 2.2. Hypertonic SolutionHypertonic Solution 3.3. Hypotonic SolutionHypotonic Solution
- 10. SOLUTIONSSOLUTIONS Isotonic SolutionsIsotonic Solutions:: contain thecontain the same concentrationsame concentration of solute as anof solute as an another solution (e.g. the cell's cytoplasm). When a cell is placed inanother solution (e.g. the cell's cytoplasm). When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at thean isotonic solution, the water diffuses into and out of the cell at the same rate. The fluid that surrounds the body cells is isotonic.same rate. The fluid that surrounds the body cells is isotonic. Hypertonic SolutionsHypertonic Solutions:: contain acontain a high concentration of solutehigh concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell isrelative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypertonic solution, the water diffuses out of the cell,placed in a hypertonic solution, the water diffuses out of the cell, causing the cell to shrivel.causing the cell to shrivel. Hypotonic SolutionsHypotonic Solutions:: contain acontain a low concentration of solutelow concentration of solute relativerelative to another solution (e.g. the cell's cytoplasm). When a cell is placedto another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypotonic solution, the water diffuses into the cell, causing thein a hypotonic solution, the water diffuses into the cell, causing the cell to swell and possibly explode.cell to swell and possibly explode.