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
Question
Chapter 27, Problem 14PIAT
Summary Introduction
To review:
The experiment that will test whether the coating of extracellular slime will change the speed of the organism across the substrate or not.
Introduction:
To test the change in speed of slime mold across the substrate can be detected by using different substrates. The growth substrate that can be used is plain agar and the precoated agar with the extracellular matrix.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
As an environmental engineer, you will follow the scientific method and start your work by generating a hypothesis first.
Formulate a hypothesis on how bacterial cells use their characteristics to take up hydrocarbons from oil spills. Specify the mode of transport through the cell membrane (active vs. passive/endocytosis vs. exocytosis) and support your claim with scientific reasoning.
Describe how these bacterial cells would take up hydrocarbons if:
they only possessed a cell membrane and lacked the cell wall.
they possessed membrane-bound organelles such as vesicles.
Include in your answer the lipid bilayer, structural components of cell membranes and those of cell walls, and discuss the selective permeability characteristic of membranes.
SECTION
rs of Lab Section:
3.3
FUNGUS-LIKE PROTISTS
Answer the following questions:
v. 20231
What is a possible function of cytoplasmic streaming in the slime mold?
To help distribute and redistribute nutrient throughout
organism.
Hypothesize as to how you think the living slime mold plasmodium (feeding stage) would
react if you warm it up by leaving it on your microscope stage under high illumination for
about 30 minutes?
the
Examine the diagrams of the animal cell below. In each case, identify the cell as being in an isotonic solution, a hypertonic solution, or a hypotonic solution. Then write a caption in your own words for each cell to explain what is happening as a result of being in that solution.
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
- Formulate a hypothesis on how bacterial cells use their characteristics to take up hydrocarbons from oil spills. Specify the mode of transport through the cell membrane (active vs. passive/endocytosis vs. exocytosis) and support your claim with scientific reasoning. Describe how these bacterial cells would take up hydrocarbons if: they only possessed a cell membrane and lacked the cell wall. they possessed membrane-bound organelles such as vesicles. Include in your answer the lipid bilayer, structural components of cell membranes and those of cell walls, and discuss the selective permeability characteristic of membranes.arrow_forwardGive typing answer with explanation and conclusion A contractile vacuole is an organelle that pumps excess water out of many freshwater protozoan cells. A freshwater protozoan was placed in solution A and observed to form contractile vacuoles at a rate of 11 per minute. The same protozoan was then placed in solution B and observed to form contractile vacuoles at a rate of 4 per minute. Based on this information, which of the following statements is correct? a. Solution A is hypertonic to solution B. b. Solutions A and B are isotonic. c. Solution B is hypertonic to solution A. d. Solutions A and B are isotonic to the protozoan cell. e. Both a and b.arrow_forwardDr. Rodo and is colleague Mr. Simms were studying the effect of a particular herbacide on the activity of plant cells. They want to observe the impact of the chemical on the molecular structures inside the cell. Which microscope would be the best tool for this research? a. dissecting microscope b. compound light microscope c. scanning electron microscope d. transmission electron microscopearrow_forward
- Slime moulds are excellent material for the study of protoplasm.Comment.arrow_forwardYou are studying amoebas and paramecia, two different single-celled protozoans. You have at your disposal a standard white light (known as "bright-field") microscope, a fluorescence microscope, a scanning electron microscope, and a transmission electron microscope. For each of the following studies, indicate which type of microscope would be most useful. Items (6 items) (Drag and drop into the appropriate area below) Take movies of unmanipulated cells swimming or crawling in a drop of water. Categories View three- dimensional images of the outer surface of a paramecium, including cilia. bright-field Drag and drop here View cytoplasmic streaming (movement of organelles within the cytoplasm) in a paramecium. fluorescence Drag and drop here Stain and visualize chromosomes and mitotic spindles in dividing amoebae. Visualize ribosomes in the cytosol and mitochondria of amoebas. scanning electron Drag and drop here Use labeled antibodies to locate and make color images of lysosomes in both…arrow_forwardUse the information below to answer the question Cell A = 1 μm x 1 μm x 1 μm Cell B=2 µm x 2 μm x 2 μm Cell C = 3 μm x 3 μm x 3 um How do the surface area-to-volume ratios compare for the cells listed above, and which cell would exchange the greatest amount of substances and waste products with its environment relative to its internal chemical activity? Assume the cells are cube-like. O a. The surface area-to-volume ratios increase from A to B to C, with cell A having the most rapid transport. O b. The surface area-to-volume ratios increase from A to B to C, with cell B having the most rapid transport O c. The surface area-to-volume ratios increase from A to B to C, with cell C having the most rapid transport O d. The surface area-to-volume ratios increase from C to B to A, with cell A having the most rapid transport. Oe. The surface area-to-volume ratios increase from C to B to A, with cell C having the most rapid transportarrow_forward
- Could a bacterial cell dispense with a cell wall if it had acapsule? Why or why not?arrow_forwardIf you put an amoeba (cytoplasm is approximately 90% water; plasma membrane is permeable to water) into a jar of distilled water, in which direction would water move? What problem might this cause for the amoeba?arrow_forwardList two protists that are ciliates or flagellates. List two protists that are amoeboid list two organisms that cause diseas and what diseases they cause create a pie chart or bar graph comparing the forms of motility , ciliates, flagellates and amoebaarrow_forward
- Compare the effects of isotonic, hypotonic, and hypertonic solutionson an amoeba and on a bacterial cell. If a cell lives in a hypotonicenvironment, what will occur if it is placed in a hypertonicone? Answer for the opposite case as well.arrow_forwardShow solution with correct formula. A jar has 2 amoebas in it. Amoeba splits into two (doubling in size) once every second. The jar will be completely filled in 20 seconds. How long would it take to fill the jar if it had already 8 amoebas in it?arrow_forwardUse the principle of FRAP to explain why the cell membrane is described as fluid mosaicarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
cell culture and growth media for Microbiology; Author: Scientist Cindy;https://www.youtube.com/watch?v=EjnQ3peWRek;License: Standard YouTube License, CC-BY