Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
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 structure in the Entamoeba
histolytica is sometimes called a "false
foot" and has a similar function to the
musculoskeletal system of humans
because it helps the amoeba move
through its environment?
Pseudopod
Contractile Vacuole
Cell Membrane
Nucleus
Which of the following is the correct passage of the food and water in paramecium?
O oral groove->cytostome-->cytopharynx-->cytoproct-->food vacuole
O cytostome-->oral groove-->cytopharynx-->food vacuole-->cytoproct
O oral groove-->cytostome-->cytoproct-->food vacuole-->cytoplasm
O oral groove-->cytopharynx-->food vacuole-->cytoproct-->cytostome
O oral groove->cytostome-->cytopharynx-->food vacuole-->cytoproct
EsC
44
F4
F5
F6
F2
F3
Fungi cell membrane contains sterol and ergesterol. Ergesterol synthesizing enzymes are drug targets for fungal treatment.
True
False
Chapter 27 Solutions
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
- Which of the following statements are correct about nodule formation by Rhizobium species? P. Nodule formation requires participation of both plant's nodulin genes and rhizobial nodulation genes Q. Nod factors synthesized by nodulation genes are lipochitin oligosaccharides R. Infection thread forms during nodule formation is an internal tubular extension of the plasma membrane that is produced by the fusion of Golgi-derived membrane vesicles S. Nodule formation in non-leguminous plants is mainly mediated by Rhizobium species P and Q P. R and S F1 P, Q and R P, Q, R and Sarrow_forwardIn the pictures below, identify the arrowed reproductive structures of microscopic cyanobacteria based on the following descriptions: Akinetes are dormant structures larger than the vegetative cells, are rich in food reserves, and have thick walls. Most filamentous cyanobacteria develop akinetes in adverse conditions (e.g., winter, dry periods). When favorable conditions return, they germinate and produce new filaments. Hormogonia are short pieces of filaments consisting of 5–15 trichomes that fragment and develop into new filaments. Heterocytes (or heterocysts) are multicellular structures that have a thick and massive sheath, formed by members of the Nostocales. It is the location of the enzyme nitrogenase for nitrogen fixation, the conversion of nitrogen gas into ammonium and then amino acids. They may be intercalary or terminal in position and may germinate from either end or both the ends to give rise to new filaments. Non-filamentous cyanobacteria generally produce spores…arrow_forwardWhich of the following statements is true regarding mycorrhizal relationships? this relationship is a type of parasitism bacteria partner with plant roots fungi provide energy (ATP) for their partner all glomeromycota are mycorrhizal fungi no statements above are truearrow_forward
- this is a scypha. label the incurrent canals, ostia, radial canals, spongocel if they are visible. if not visible, indicate not visible.arrow_forwardNucleosome is a level of DNA packaging in eukaryotic cells, it consists of DNA segment around three core histone proteins. True False Which of the following is a true statement about arbuscular mycorrhizae? *arrow_forwardHow does amoeba ingest a food particle through the process of phagocytosis? (very detailed please:) thank you)arrow_forward
- In the following diagram of a black bread mold (Rhizopus stolonifer), identify the following structures of a multicellular fungus: mycelium, rhizoids, stolon, sporangium, sporangiophore, sporangiospores. After that, give a brief description/function of each structure: 1. Hypha/Mycelium 2. Rhizoid 3. Stolon 4. Sporangium 5. Sporesarrow_forwardDescribe the life cycle of Toxoplasma gondii, where does Toxoplasma "want" to be? How does toxo gets into rats and deal with the problems of being stuck in the wrong host animal?arrow_forwardWhat type of bioluminscence produces 1000 photons of light per second in a normal situation without predators? What are some other types of bioluminescent bactirium and how much light do they produce in a normal situation? How many photons are emited by luciferin and luciferase in a normal situation? Amount of light emited per amount of bacterium.arrow_forward
- Why would it be disadvantageous for a plant to form a symbiotic relationship with a mycorrhizal fungus when phosphate is abundant in the soil surrounding its roots?arrow_forwardVisit: https://www.youtube.com/watch?v=7pR7TNzJ_pA&feature=youtu.be Examine an amoeba. Note its locomotion, termed amoeboid movement, which is the slow extension of the cytoplasm, the associated cytoplasmic streaming, and the apparent retraction How do you think amoeba eat? What do you think amoeba eat?arrow_forwardIn mycorrhizal associations with plants what are the structures produced by VAM fungi and Ectomycorrhizal fungi to facilitate the exchange of nutrients, and how do they differ?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
General Embryology Review in 20 minutes; Author: Medical Animations;https://www.youtube.com/watch?v=4YKvVeVMmEE;License: Standard youtube license