ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 3.4, Problem 8AYP
Summary Introduction
To determine:
The ways by which the hydrophilic heads and hydrophobic tails of phospholipid molecules result in a plasma membrane.
Introduction:
The phospholipid bilayer is present in a cell membrane. The phospholipid bilayer has selective permeability which allows some substances to pass through it. A cell membrane also contains proteins and other molecules.
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what purpose does the plasma membrane’s hydrophobic interior serve?
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b) Cellular membranes are generally found in environments that contain lots of water. Draw a
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c) What part or parts of a cellular membrane play(s) a role in determining the fluidity of the
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Chapter 3 Solutions
ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
Ch. 3.1 - What parts are common to most cells?Ch. 3.1 - Explain the four characteristic functions of the...Ch. 3.2 - Which cell features can be seen with a light...Ch. 3.3 - Explain five functions of the plasma membrane.Ch. 3.3 - Prob. 5AYPCh. 3.3 - Prob. 6AYPCh. 3.3 - What are the main chemical components of the...Ch. 3.4 - Prob. 8AYPCh. 3.4 - Summarize the characteristics of the fluid-mosaic...Ch. 3.4 - Prob. 10AYP
Ch. 3.5 - Prob. 11AYPCh. 3.5 - Prob. 12AYPCh. 3.5 - What are the three classes of transport proteins?Ch. 3.5 - Describe specificity, competition, and saturation...Ch. 3.5 - Prob. 15AYPCh. 3.5 - Prob. 16AYPCh. 3.5 - Prob. 17AYPCh. 3.5 - Prob. 18AYPCh. 3.5 - Prob. 19AYPCh. 3.5 - Prob. 20AYPCh. 3.6 - Explain why the plasma membrane is selectively...Ch. 3.6 - Prob. 22AYPCh. 3.6 - Describe how the amount of solute in a solvent...Ch. 3.6 - How is the rate of diffusion affected by an...Ch. 3.6 - Prob. 25AYPCh. 3.6 - Compare isosmotic, hyperosmotic, and hyposmotic...Ch. 3.6 - Prob. 27AYPCh. 3.6 - Prob. 28AYPCh. 3.6 - What is secondary active transport? Describe how...Ch. 3.6 - Prob. 30AYPCh. 3.6 - Prob. 31AYPCh. 3.6 - Prob. 32AYPCh. 3.6 - Describe and give examples of exocytosis.Ch. 3.7 - Prob. 34AYPCh. 3.7 - Prob. 35AYPCh. 3.7 - List and describe the functions of microtubules,...Ch. 3.7 - What are cytoplasmic inclusions? Give several...Ch. 3.8 - Define organelles. Are oil orgonelles found in oil...Ch. 3.8 - Describe the structure of the nucleus and the...Ch. 3.8 - Prob. 40AYPCh. 3.8 - Prob. 41AYPCh. 3.8 - Prob. 42AYPCh. 3.8 - What molecules combine to form ribosomes? Where...Ch. 3.8 - Prob. 44AYPCh. 3.8 - Prob. 45AYPCh. 3.8 - What are the functions of the rough endoplasmic...Ch. 3.8 - Prob. 47AYPCh. 3.8 - Relate the structure and function of the Golgi...Ch. 3.8 - Prob. 49AYPCh. 3.8 - Prob. 50AYPCh. 3.8 - Prob. 51AYPCh. 3.8 - Prob. 52AYPCh. 3.8 - What are the structure and function of...Ch. 3.8 - Describe the structure of a mitochondrion. How...Ch. 3.8 - What enzymes are found on the cristae? In the...Ch. 3.8 - What is the centrosome? Relate the structure of...Ch. 3.8 - What are spindle fibers? Explain the relationship...Ch. 3.8 - Prob. 58AYPCh. 3.8 - Prob. 59AYPCh. 3.9 - Prob. 60AYPCh. 3.9 - Prob. 61AYPCh. 3.9 - Prob. 62AYPCh. 3.9 - Prob. 63AYPCh. 3.9 - Prob. 64AYPCh. 3.9 - Prob. 65AYPCh. 3.9 - Prob. 66AYPCh. 3.9 - Place the steps of translation in sequence. In...Ch. 3.9 - Prob. 68AYPCh. 3.9 - State two ways the cell controls what part of DNA...Ch. 3.10 - Describe the cell’s activities during the G1, S....Ch. 3.10 - Prob. 71AYPCh. 3.10 - Prob. 72AYPCh. 3.10 - Prob. 73AYPCh. 3.10 - Differentiate among chromot in, chromcitids, and...Ch. 3.10 - Prob. 75AYPCh. 3.10 - Prob. 76AYPCh. 3.10 - Prob. 77AYPCh. 3.11 - Prob. 78AYPCh. 3 - In the plasma membrane, _____ form(s) the lipid...Ch. 3 - Which of the following functioning proteins are...Ch. 3 - In general, lipid-soluble molecules diffuse...Ch. 3 - Small pieces of matter, and even whole cells, can...Ch. 3 - The rate of diffusion increases if the a....Ch. 3 - Concerning the process of diffusion, at...Ch. 3 - Prob. 7RACCh. 3 - Prob. 8RACCh. 3 - Which of these statements about facilitated...Ch. 3 - Which of these statements concerning the symport...Ch. 3 - A white blood cell ingests solid particles by...Ch. 3 - Given these characteristics: (1) requires energy...Ch. 3 - Cytoplasm is found a. in the nucleus. b. outside...Ch. 3 - Which of these elements of the cytoskeleton is...Ch. 3 - A large structure, normally visible in the nucleus...Ch. 3 - A cell that synthesizes large amounts of protein...Ch. 3 - Which of thes organelles produces large amounts of...Ch. 3 - Prob. 18RACCh. 3 - A portion of an mRNA molecule that determines one...Ch. 3 - In which of these organelles is m RNA synthesized?...Ch. 3 - During the cell cycle, DNA replication occurs...Ch. 3 - Given the following activities: Repair Growht...Ch. 3 - Apoptosis Is a programmed cell death. Removes...Ch. 3 - Prob. 1CTCh. 3 - Prob. 2CTCh. 3 - Prob. 3CTCh. 3 - Prob. 4CTCh. 3 - Luke started a training program at the beginning...Ch. 3 - Prob. 6CT
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- The plasma membrane of P. bursaria is about 56%56% protein and 40%40% phospholipid by weight. How many molecules of membrane lipid are present for each molecule of membrane protein? Assume an average protein ?rMr of 4.8×1044.8×104 and an average phospholipid ?rMr of 750.arrow_forwardWhat are the functional significance of the fluidity of a cell membrane?arrow_forwardOn which of the following intracellular locations does clathrin organize a coat and form vesicles? lysosome trans-Golgi rough ER cis-Golgiarrow_forward
- Below is the skeletal formula of a molecule typically found in cell membranes. What type of molecule is this and how can you tell? What are the functions of this type of molecule in the plasma membrane of a cell? H HO CH3 CH3 C-H + H-C-H Harrow_forwardIn the fluid mosaic model: plasma membrane proteins orient their hydrophilic sides toward the internal bilayer. phospholipids often flip-flop between the inner and outer layers. the mosaic refers to proteins attached to the underlying cytoskeleton. the fluid refers to the phospholipid bilayer. the mosaic refers to the symmetry of the internal membrane proteins and sterols.arrow_forwardGiven the following compositional assessment of a cell membrane, describe from ER to cell membrane how this composition was synthesized and why it is asymmetric? Cytoplasmic face Non-cytoplasmic face PI 25 8 PC 6 22 SM 4 23arrow_forward
- What would probably happen to the plasma membrane of a cell if it were composed of hydrophilic molecules such as carbohydrates?arrow_forwardPhospholipids form the main fabric of the plasma membrane. One feature of phospholipids is that when they are placed in an aqueous solution, they will self-assemble into a double layer (bilayer) that resembles the bilayer of the plasma membrane. This self-assembly occurs because phospholipids are hydrophilic at one end (the phospholipid head) and hydrophobic at the other end (the phospholipid tails). Drag the labels to their appropriate locations in the figure. 1. First, drag labels of Group 1 to targets (a) and (b) to indicate whether these environments are hydrophilic or hydrophobic. 2. Next, drag the phospholipid layers (Group 2) to targets (c) and (d) to indicate how they are oriented in the plasma membrane. 3. Finally, drag labels of Group 1 to targets (e), (f), and (g) to indicate which portions of the membrane protein are hydrophilic and which are hydrophobic. Group 1 extracellular hydrophobic fluid © hydrophilic plasma membrane Group 1 Group 2 (f membrane protein Group 1 Group…arrow_forwardWhy can nitrogen cross the membrane via diffusion through the bilayer and while protons require a protein?arrow_forward
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