Lesson 1.12 PASSIVE AND ACTIVE TRANSPORT.pdf

WORK PLAN Discussion Checking Cell Opening Recitation Skill Activity Closing 5’s of...

WORK PLAN Discussion Checking Cell Opening Recitation Skill Activity Closing 5’s of Motivation Structures Prayer of PVM Building Time Prayer Attendance & Functions RECITATION of PVM, 8 Core Values, EOMS & QPS SKILL BUILDING ACROSS 3. The net movement of tiny particles, like gases, from high to low concentration (9 Letters) DOWN 1. The difference in concentration of a substance between 2 areas (Two Words: 13 & 8) 2. Water entering a cell from a water-rich environment (7 Letters) 1 MOTIVATIONAL ACTIVITY UNIVERSITY OF PERPETUAL HELP SYSTEM DALTA - MOLINO SENIOR HIGH SCHOOL SCIENCE DEPARTMENT 12155 BIO1 – GENERAL BIOLOGY 1 LESSON 1.12 PASSIVE TRANSPORT: Diffusion & Osmosis Mr. Rey B. Argoso, LPT SHS Science Faculty  LEARNING OBJECTIVES At the end of the discussion, students should be able to: 1 2 3 Describe diffusion and Distinguish diffusion from Predict substance movement osmosis as movement across osmosis based on the in cells placed in hypertonic, cell membranes driven by molecules and conditions hypotonic, or isotonic solutions. concentration gradients. involved PASSIVE TRANSPORT e Cell Membrane PASSIVE TRANSPORT Passive transport is a method by which molecules move across the cell membrane without the need for energy. This process relies on the natural motion of molecules from areas of high concentration to areas of low concentration, aiming to reach equilibrium.  SIMPLE DIFFUSION Diffusion is the net movement of a substance from an area of higher concentration to an area where it has a lower concentration.  DIFFUSION IN A LIQUID MEDIUM The diffusion of solute within the solvent is affected by several factors; Temperature Pressure Solvent Density Concentration gradient Solute Solubility  OSMOSIS Osmosis is a process by which the molecules of a solvent pass from a solution of low concentration to a solution of high concentration through a semi-permeable membrane.  TONICITY An isotonic solution is one that has the same concentration of solutes both inside and outside the cell. A hypertonic solution is one that has a higher solute concentration outside the cell than inside. A hypotonic solution is one that has a higher solute concentration inside the cell than outside.  FACILITATED DIFFUSION Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an area of lower concentration with the help of a transport molecule. FACILITATED DIFFUSION FACILITATED DIFFUSION  CELLSpiring Quote of the Day “Like how friendships are formed naturally without much effort, passive transport is a gentle force that brings molecules together. It's a reminder that sometimes, the simplest things in life are the most beautiful.” -Anonymous GOD BLESS! I hope you learn something new today! ☺