Which of the following best describes a cells plasma membrane? A matrix of proteins that synthesizes ATP via oxidative phosphorylation. A protective covering made primarily of either cellulose or chitin. A mosaic of proteins, lipids, and carbohydrates. The inner most layer of the cell.
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Step 1: The plasma membrane is the outer layer of a cell that controls what enters and leaves the cell. Show more…
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1. The modern understanding of the cellular or plasma membrane is referred to as the fluid mosaic model or lipid bilayer model. 2. It is composed of a bilayer of phospholipids. 3. Glycoproteins are attached to some of the proteins and lipids on the outward-facing surface of the membrane. 4. Cell recognition is a function of carbohydrates. 5. The fluid nature of the membrane is due to phospholipids. 6. Cell membranes separate and protect the borders of cells. 7. Membrane transport refers to the collection of mechanisms that regulate the passage of solutes. 8. Integral proteins are integrated into the membrane structure that interacts extensively with the hydrocarbon chains of membrane lipids.
Lainey R.
Complete each statement describing the plasma membrane and the cytoplasm by dragging a label into the appropriate blank. cytoplasm cytosol organelles cell plasma membrane lipids ectoplasm
Sri K.
Match each term with its definition or description. Cell theory Viruses Plasma membrane Phospholipid bilayer Hydrophilic Hydrophobic Organelles Cytosol Cell wall Nucleus Nucleolus Mitochondria Chloroplast Lysosome Ribosomes Rough endoplasmic reticulum Smooth endoplasmic reticulum Golgi apparatus Centrioles Cytoskeletal elements Central vacuole Peroxisomes A. Describes molecules that can move directly through the plasma membrane B. Regulates transport of food, gases, and waste C. Involved in lipid synthesis D. A possible exception to cell theory E. Modifies, sorts, and packages proteins F. Describes molecules that must use protein channels or carriers to move through the plasma membrane G. Where DNA is found H. Perform specific jobs inside of the cell I. Made up of hydrophilic heads and hydrophobic tails J. Scaffolding that supports and shapes the cell K. Recycles molecules L. Where proteins are assembled M. Important for cell division in animals N. Breaks down toxins, like hydrogen peroxide O. Living organisms are composed of one or more cells P. The site of photosynthesis in plants Q. Surrounds plant, fungi, and bacteria cells R. Plant organelle that stores water S. Watery substance surrounding organelles T. Membrane network with attached ribosomes where proteins are made and folded U. Makes ribosomes V. Produces energy for the cell
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