Concept explainers
SCIENTIFIC INQUIRY In studying micrographs of an unusual protist (single-celled eukaryote) that you found in a sample of pond water, you spot an organelle that you can’t recognize. You successfully develop a method for growing this organism in liquid in the laboratory. Describe how you would go about finding out what this organelle is and what it does in the cell. Assume that you would make use of additional microscopy, cell fractionation, and biochemical tests.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
Additional Science Textbook Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Essentials of Human Anatomy & Physiology (11th Edition)
Brock Biology of Microorganisms (14th Edition)
Study Guide for Campbell Biology
Human Anatomy & Physiology (2nd Edition)
Laboratory Manual For Human Anatomy & Physiology
- Anton Van Leeuwenhoek observed under the microscope a drop of water and sawmoving unicellular microorganisms. How can he prove that these are also livingorganisms since they cannot be seen by the naked eye? Provide a brief explanation as to its relationship with the principle of cell theoryinvolved. Thank youarrow_forwardYou are using a computer program to design a new single-celled organism. Discuss why a flat, plate-like cell will be more efficient in transporting materials than a spherical, ball-like cell of the same volume.arrow_forwardWhat differences are there between a free-living, single-celled organism such as a paramecium and a single human cell such as a ciliated cell of the respiratory tract? Use cited.arrow_forward
- Many microscopy techniques use cell characteristics, such as differences in absorption, refraction, or even light polarization. Fluorescence microscopy provides an image from a single molecular species, simply by looking at the fluorescence emission. How does fluorescence microscopy compare to other techniques? A.Image the location, diffusion or even transport of intracellular molecules.B.Accurately calculate the cytosol refractive index of a cellC.Count the number of cellsD.Accurately measure kernel sizearrow_forwardUsing the appropriate osmotic terms (hypertonic, hypotonic, or isotonic) describe what would happen to each organism in the following settings: A single-celled freshwater protist is placed into a beaker of salt water. A salt-water snail is mistakenly put into a freshwater tank. A head of lettuce is placed soaked in a sink of salt water. A carrot is soaked a sink of distilled, pure water.arrow_forwardYou are observing a cell in the microscope at 100X and determine that it has a length of 15 ocular units (o.u.). What is the actual length of the cell? Question options: 150 µm 0.15 µm 15 µm 1,500 µmarrow_forward
- Please use the Claim, Evidence, and Reasoning Format to answer the following question: Explain how the development of the microscope impacted the development and support of the Cell Theory.arrow_forwardAn organism can be just a single cell such as a bacterium or can be made up of trillions of cells like humans. However, each cell is like a machine. It has many parts and each works in concert with the other. In this post, you will demonstrate an understanding of the functions of organelle and how they work together in cells. Pick one cell organelle, describe its structure and function and then discuss how it works with another cell organelle. Don't forget to add a question to get the class engaged in discussion.arrow_forwardplease use hand writearrow_forward
- Use the analogy of the cell as a manufacturing factory to describe the function of the following cell structures: plasma membrane, mitochondria, nucleus, Golgi, ribosomes, lysosomes, endoplasmic reticulum.arrow_forwardThe properties of integral membrane proteins can be studied by 1)Atomic force microscopy 2)Cryo-sectioning and electron microscopy 3)Freeze-fracture technique and electron microscopy 4)All of the abovearrow_forwardMeasure the length of Cell X using the ruler in Microsoft Word. Assuming the actual length to be 3 um, calculate the magnification. Show your complete solution. Based on Figure 1, what internal organization can be distinguished in cell X? Why? Based in Figure 1, can you see a limiting membrane? Can you deduce its presence? Why or why not?arrow_forward
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning