Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 5, Problem 13TYU
Summary Introduction
To make: A hypothesis regarding whether the transport proteins evolved early or later in the history of cells.
Concept introduction: There are various membrane proteins that help in the transportation of molecules in and out of the cell. Membrane proteins act as transport proteins that are involved in both active and passive transport of molecules across the cell membrane.
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Chapter 5 Solutions
Biology (MindTap Course List)
Ch. 5.1 - Prob. 1LOCh. 5.1 - Prob. 2LOCh. 5.1 - Prob. 3LOCh. 5.1 - Prob. 4LOCh. 5.1 - What molecules are responsible for the physical...Ch. 5.1 - Prob. 2CCh. 5.1 - Prob. 3CCh. 5.2 - Prob. 5LOCh. 5.2 - Prob. 1CCh. 5.2 - What roles do membrane proteins play in cell...
Ch. 5.3 - Describe the importance of selectively permeable...Ch. 5.3 - Prob. 1CCh. 5.3 - Prob. 2CCh. 5.3 - Prob. 3CCh. 5.4 - Prob. 7LOCh. 5.4 - LEARNING O9BJECTIVES 8Define osmosis and solve...Ch. 5.4 - PREDICT What would happen if a plan cell were...Ch. 5.4 - What is the immediate source of energy for simple...Ch. 5.4 - Prob. 3CCh. 5.5 - Prob. 9LOCh. 5.5 - Prob. 1CCh. 5.5 - What is the immediate energy source for...Ch. 5.6 - Prob. 10LOCh. 5.6 - In what ways are exocytosis and endocytosis...Ch. 5.6 - How are the processes of phagocytosis and...Ch. 5.6 - What is the sequence of events in...Ch. 5.7 - Compare the structures and functions of anchoring...Ch. 5.7 - Prob. 1CCh. 5.7 - Prob. 2CCh. 5 - Test Your Understanding 1.Transmembrane proteins...Ch. 5 - Test Your Understanding 2.Which of the following...Ch. 5 - Test Your Understanding 3.ABC transporters (a) use...Ch. 5 - Test Your Understanding 4.When plant cells are in...Ch. 5 - Test Your Understanding 5.Which of the following...Ch. 5 - Test Your Understanding 6.Electrochemical...Ch. 5 - Test Your Understanding 7.In cotransport (indirect...Ch. 5 - Prob. 8TYUCh. 5 - Prob. 9TYUCh. 5 - Test Your Understanding 10.INTERPRET DATA GLUT 4...Ch. 5 - Prob. 11TYUCh. 5 - Test Your Understanding 12.EVOLUTION LINK Explain...Ch. 5 - Prob. 13TYU
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- Test Your Understanding 1.Transmembrane proteins (a) are peripheral proteins (b) receptor proteins (c) extend completely through the membrane (d) extend along the surface of the membrane (e) are secreted from the cellarrow_forwardTest Your Understanding 5.Which of the following processes requires the cell to expend metabolic energy directly (e.g., from ATP)? (a) osmosis (b) facilitated diffusion (c) all forms of carrier-mediated transport (d) active transport (d) active transport (e) simple diffusionarrow_forwardTest Your Understanding 12.EVOLUTION LINK Explain to your roommate why the evolution of biological membranes was an essential step in the origin of life. Give arguments supporting (or challenging) this hypothesis.arrow_forward
- 4.Why are bound ribosomes and golgi complexes especially abundant in cells that secrete digestive enzymes ? 5. What are the functional differences between a plasma membrane and a cell wall? 6. Discuss the endomembrane system.arrow_forward1. Compare the different ways that substances move across membranes. 2. Imagine that you have given blood, but a sample of your red blood cells is accidentally stored in distilled water instead of a saline solution. Predict and explain what would happen to the cells. Use a diagram to support your answer. 3. Explain the fluid mosaic model of a cell membrane, use a diagram to explain your answer. Then briefly describe the 4 functional roles membrane proteins play, also add diagrams to your answer. 4. Describe the difference between an unsaturated fat and a saturate fat. Include information about molecules, bonds, and properties of the substance as a whole.arrow_forward9.-A-medical-student studies a waste disposal system- in human epithelial cells. During electronic- microscopy he reveals the spherical vesicles, surrounded by a membrane and containing many different hydrolytic enzymes. The main function of these organelles is to provide intracellular digestion and protective reactions of the cell-Which of the following organelles is mentioned above A. Endoplasmatic reticulum B. Mitochondria C. Ribosomes D. Centrosomes E. Lysosomes 1arrow_forward
- MAIN IDEA: Eukaryotic cells have an extensive and dynamic framework called a cyto- skeleton. The cytoskeleton is used for cell shape, internal structure, movement, and cell division. Many cells are surrounded by and supported by a complex extracellular matrix and are able to interact with adjacent cells and the environment via cell junctions. 5. List three common components of microtubules and microfilaments.arrow_forwardYou observed some cells through a microscope. You saw ribosomes but no mitochondria. What cell type could they be (plant cells, animal cells, bacterial cells)? [Hint: all cells, prokaryotic and eukaryotic, have 4 things in common including ribosomes but not all cells have (membrane-bound) organelles like mitochondria. So, what type of cells lack mitochondria?]arrow_forwardI have a biology question: prokaryotic and eukaryotic cells BOTH have: a. An endoplasmic reticulum b. Membrane bound nuclei c. A cell membrane and ribosomes d. Circular chromosomes match each organelle to its function lysosome Contains hydrolytic enzymes mitochondria Site of ATP synthesis in eukaryotic cells round endoplasmic reticulum Manufactures new membrane and transports proteins Golgi apparatus Modifies and packages cell secretions into vesicles for export peroxisome. In plant and animal cells detoxifies hydrogen peroxidearrow_forward
- EVOLUTION LINK What types of similarities in cell structure and function tell biologists about the common origin of organisms? Explain.arrow_forwardA scientist compares the plasma membrane composition of an animal from the Mediterranean coast with one from the Mojave Desert. Which hypothesis is most likely to be correct? The cells from the Mediterranean coast animal will have more fluid plasma membranes The cells from the Mojave Desert animal will have a higher cholesterol concentration in the plasma membranes The cells’ plasma membranes will be indistinguishable The cells from the Mediterranean coast animal will have a higher glycoprotein content, while the cells from the Mojave Desert animal will have a higher lipoprotein content.arrow_forwardModel 4 - Transport Proteins: Facilitated Diffusion Extracellular Fluid mu Cytoplasmic Fluid Extracellular Fluid wwwwwwy hmmmml Cytoplasmic Fluid www.wmy wwwwwy hummu hmm wwwwwwy immmml wwwwwwwwY immu hmmmml wwwwy hmmmm O wwwwwwy wwwwwwwy imm hmmmmm Y www Y www 10. What appears to be the effect of inserting a protein channel into the membrane on the movement of molecules across the membrane? 11. Is the inner surface (facing the channel) of the embedded protein likely to be polar or nonpolar in the examples shown in Model 4? Is the exterior surface (facing the fatty acid chains of the phospholipids) of the embedded protein likely to be polar or nonpolar? Explain your reasoning. When a membrane protein assists in the passive transport of molecules across a barrier in the direction down their concentration gradient (from high concentration to low concentration) it is called facilitated diffusion. Transport proteins may also be involved in active transport where the cell uses energy from…arrow_forward
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