Concept explainers
To discuss:
Reverse osmosis, the location it occurs in the body, and its purpose.
Introduction:
Cells are regarded as the simplest unit (structural and functional) of life. Cellular membrane, nucleus, and cytoplasm are the three major components of a cell. Cellular membrane which surrounds the entire cell is composed of phospholipids and proteins. The nucleus is bound by a nuclear membrane and it possesses the genetic material of the cell. Cytoplasm consists of organelles, cytoskeleton (filaments and tubules), and inclusion bodies. Protoplasm denotes all living material that are present in the cell enclosed by the cellular membrane (inside and outside the nucleus).
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Chapter 3 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
- Which transport mechanism in cell membrane does transfer substance from low to high concentrationarrow_forwardBriefly explain why each of the following statements is false, or reword it to make it true.1. If a cell were poisoned so it could not makeATP, osmosis through its membrane wouldceasearrow_forwardFunctions of cell membrane as traffic regulator, bidirectional and in term of concentration gradientarrow_forward
- True or false the cell membrane equalizes osmosis pressure to protect cell.arrow_forwardWhy cytoplasmic membranes are barriers but also permeablearrow_forwardThe movement of molecules that expends energy to move potassium ions into the cell and a different number of sodium ions out of the cell  Simple Diffusion Facilitated Diffusion Osmosis Sodium-Potassium Pumparrow_forward
- Identify whether each method of membrane transport is passive or active by dragging the label to the correct box. Passive Active Receptor-mediated endocytosis Movement down a concentration gradient Movement of molecules from an area of high concentration to an area of low concentration Osmosis Vesicular transport Filtration Pinocytosis Movement up a concentration gradientarrow_forwardOut of the processes of osmosis, simple diffusion, anti port and synport: which one requires energy, which one is passive, which has energy in the same direction or opposite?arrow_forwardTo compensate for membrane pieces continually being added to the plasma membrane, by the cell. phagocytosis exocytosis fluid-phase endocytosis transcytosis is usedarrow_forward
- Diffusion requires a membrane to occur. True Falsearrow_forwardThe tendency of molecules (particles) to extend or spread out from a region of higher concentration to a region of lower concentration. active transport diffusion facilitated diffusion osmosisarrow_forwardIn osmosis, due to solute concentration differences, the solute will move from a higher concentration to a lower concentration. True or Falsearrow_forward