Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
7th Edition
ISBN: 9780135276556
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 27, Problem 11PIAT
Does a slime mold “know” where it’s going?
When placed at the perimeter of a maze with food in the center, the plasmodial slime mold Physarumpolycephalum explores the maze, retracts branches from dead-end corridors, and then grows exclusively along the shortest path possible to the food. How does Physarum do this? One theory is that it leaves behind slime deposits—an externalized “memory” that “reminds” it to not retry dead ends.
Which of the following best describes movement in Physarum?
a. Cilia propel the slime mold.
b. Flagella propel the slime mold.
c. The slime mold moves by amoeboid motion.
d. The slime mold moves by gliding motility.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What are some external influences that keep people from making healthy eating decisions?
What type of structure(s) would you expect to see in peripheral membrane proteins? (mark all that apply)
A. Amphipathic alpha helix (one side is hydrophilic and one side is hydrophobic)
B. A hydrophobic beta barrel
C. A hydrophobic alpha helix
D. A chemical group attached to the protein that can anchor it to the membrane
Temporal flexibility (the ability to change over time) of actin structures within a cell is maintained by…
A.
The growth/shrinkage cycle
B.
Periodic catastrophe
C.
GTP hydrolysis
D.
Treadmilling
E.
None of the above
Chapter 27 Solutions
Modified Mastering Biology With Pearson Etext -- Standalone Access Card -- For Biological Science (7th Edition)
Ch. 27 - Why are protists considered paraphyletic? a. They...Ch. 27 - 2. The most important primary producers in marine...Ch. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - 8. The text claims that the evolutionary history...Ch. 27 - Prob. 9TYPSSCh. 27 - Prob. 10TYPSSCh. 27 - Does a slime mold “know” where it’s going?
When...Ch. 27 - Prob. 12PIAT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- During in vitro polymerization of actin and microtubule filaments from their subunits, what causes the initial delay in filament growth? A.Nucleation B.Reaching homeostasis C.Nucleotide exchange D.ATP or GTP hydrolysis E.Treadmillingarrow_forwardYou expect to find which of the following in the Microtubule Organizing Center (MTOC)...(mark all that apply) A. Gamma tubulin B. XMAP215 C. Centrioles D. Kinesin-13arrow_forwardThe actin-nucleating protein formin has flexible “arms” containing binding sites that help recruit subunits in order to enhance microfilament polymerization. What protein binds these sites? A.Thymosin B.Profilin C.Cofilin D.Actin E.Tropomodulinarrow_forward
- While investigating an unidentified motor protein, you discover that it has two heads that bind to actin. Based on this information, you could confidently determine that it is NOT... (mark all that apply) A. A myosin I motor B. A dynein motor C. A myosin VI motor D. A kinesin motorarrow_forwardYou isolate the plasma membrane of cells and find that . . . A. it contains regions with different lipid compositions B. it has different lipid types on the outer and cytosolic leaflets of the membrane C. neither are possible D. A and B both occurarrow_forwardYou are studying the mobility of a transmembrane protein that contains extracellular domains, one transmembrane domain, and a large cytosolic domain. Under normal conditions, this protein is confined to a particular region of the membrane due to the cortical actin cytoskeletal network. Which of the following changes is most likely to increase mobility of this protein beyond the normal restricted region of the membrane? A. Increased temperature B. Protease cleavage of the extracellular domain of the protein C. Binding to a free-floating extracellular ligand, such as a hormone D. Protease cleavage of the cytosolic domain of the protein E. Aggregation of the protein with other transmembrane proteinsarrow_forward
- Topic: Benthic invertebrates as an indicator species for climate change, mapping changes in ecosystems (Historical Analysis & GIS) What objects or events has the team chosen to analyze? How does your team wish to delineate the domain or scale in which these objects or events operate? How does that limited domain facilitate a more feasible research project? What is your understanding of their relationships to other objects and events? Are you excluding other things from consideration which may influence the phenomena you seek to understand? Examples of such exclusions might include certain air-born pollutants; a general class of water bodies near Ottawa, or measurements recorded at other months of the year; interview participants from other organizations that are involved in the development of your central topic or issue. In what ways do your research questions follow as the most appropriate and/or most practical questions (given the circumstances) to pursue to better understand…arrow_forwardThe Esp gene encodes a protein that alters the structure of the insulin receptor on osteoblasts and interferes with the binding of insulin to the receptor. A researcher created a group of osteoblasts with an Esp mutation that prevented the production of a functional Esp product (mutant). The researcher then exposed the mutant strain and a normal strain that expresses Esp to glucose and compared the levels of insulin in the blood near the osteoblasts (Figure 2). Which of the following claims is most consistent with the data shown in Figure 2 ? A Esp expression is necessary to prevent the overproduction of insulin. B Esp protein does not regulate blood-sarrow_forwardPredict the per capita rate of change (r) for a population of ruil trees in the presence of the novel symbiont when the soil moisture is 29%. The formula I am given is y= -0.00012x^2 + 0.0088x -0.1372. Do I use this formula and plug in 29 for each x variable?arrow_forward
- Please answer the following chart so I can understand how to do it.arrow_forwardDigoxin: Intravenous Bolus - Two Compartment Model Drug Digoxin Route: IV Bolus Dose: 0.750 mg Plasma Concentration Time Profile Beta Alpha Time (hrs) Conc (ng/ml) LN (ng/ml) LN (ng/ml) LN 0.00 #NUM! #NUM! #NUM! 0.10 12.290 2.509 #NUM! #NUMI 0.60 6.975 1.942 #NUM! #NUMI 1.00 4.649 1.537 #NUM! #NUMI 2.00 2.201 0.789 #NUM! #NUM! 3.00 1.536 0.429 #NUM! #NUM! 4.00 1.342 0.294 #NUM! #NUM! 5.00 1.273 0.241 #NUM! #NUMI 6.00 1.238 0.213 #NUM! #NUM! 7.00 1.212 0.192 #NUM! #NUM! 8.00 1.188 0.172 #NUMI #NUM! 9.00 1.165 0.153 #NUM! #NUMI 10.00 1.143 0.134 #NUMI #NUM! 11.00 1.122 0.115 #NUM! 12.00 1.101 0.096 #NUMI 13.00 1.080 0.077 #NUMI 16.00 1.020 0.020 #NUMI 24.00 0.876 -0.132 #NUMI Pharmacokinetic Parameters Parameter Value Alpha B Beta Units ng/ml hr-1 ng/ml hr-1 CO ng/ml H.C AUC ng x hr/ml Vc Vbeta Vss C L/hr TK (alpha) hr TX (beta) days 5+ F3 F4 F5 0+ F6 F7 % 6 95 14 #3 29 & t F8 F9 FW EWarrow_forwardLinuron, a derivative of urea, is used as an herbicide. Linuron serum levels were measured in 4Kg rabbits following a bolus IV injection of 10mg/kg. Time (minutes) Serum Linuron Levels (ug/ml) following IV dose 10 15.48 20 8.60 30 5.90 45 3.78 60 2.42 90 1.49 120 0.93 180 0.60 240 0.41 300 0.29 360 0.22 Analyze this data and perform the necessary calculations to determine the following pharmacokinetic parameters from the IV data: (5 points per parameter, 24 parameters/variables ■ 120 points possible). You do NOT need to submit graphs or data tables. Give the terminal regression line equation and R or R² value: Give the x axis (name and units, if any) of the terminal line: Give the y axis (name and units, if any) of the terminal line: Give the residual regression line equation and R or R² value: Give the x axis (name and units, if any) of the residual line: Give the y axis (name and units, if any) of the residual line:arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Principles Of Radiographic Imaging: An Art And A ...
Health & Nutrition
ISBN:9781337711067
Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac
Publisher:Cengage Learning
General Embryology Review in 20 minutes; Author: Medical Animations;https://www.youtube.com/watch?v=4YKvVeVMmEE;License: Standard youtube license