Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 4.4PS
Sentence Completion. Complete each of the following statements about cellular structure in ten words or less.
(a) If you were shown an electron micrograph of a section of a cell and were asked to identify the cell as plant or animal, one thing you might do is …
(b) A slice of raw apple placed in a concentrated sugar solution will …
(c) A cellular structure that is visible with an electron microscope but not with a light microscope is …
(d) Several environments in which you are more likely to find archaea than bacteria are …
(e) One reason that it might be difficult to separate lysosomes from peroxisomes by centrifugation techniques is that …
(f) The
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MAIN IDEA: Eukaryotic cells have an extensive and dynamic framework called a cyto-
skeleton. The cytoskeleton is used for cell shape, internal structure, movement, and cell
division. Many cells are surrounded by and supported by a complex extracellular matrix and
are able to interact with adjacent cells and the environment via cell junctions.
5. List three common components of microtubules and microfilaments.
Chapter 4 Solutions
Becker's World of the Cell (9th Edition)
Ch. 4 - Why do scientists currently believe that RNA,...Ch. 4 - You have discovered a new organism living in...Ch. 4 - If a scientist were studying a disease in which...Ch. 4 - Imagine that you are building an artificial...Ch. 4 - If viruses are nonliving particles, how can they...Ch. 4 - Wrong Again. For each of the following false...Ch. 4 - Prob. 4.2PSCh. 4 - Toward an Artificial Cell. Scientists have...Ch. 4 - Sentence Completion. Complete each of the...Ch. 4 - Telling Them Apart. Suggest a way to distinguish...
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- Cell Structure Reflects Function What advantages are there in having the interior of the cell divided into a number of compartments such as the nucleus, the ER, lysosomes, and so forth?arrow_forwardMAIN IDEA: Eukaryotic cells have an extensive and dynamic framework called a cyto- skeleton. The cytoskeleton is used for cell shape, internal structure, movement, and cell division. Many cells are surrounded by and supported by a complex extracellular matrix and are able to interact with adjacent cells and the environment via cell junctions. 3. List three common components of microtubules and microfilaments. 6. Complete the paragraph to describe how organelles help cells and cell contents move around. _j help to move cell components, such as a cell's during cell division. They rapidly assemble strengthen duplicated hen needed and then disassemble. and change the shape of a eukaryotic cell. In this way they can help the cell move. Organized arrays of are found in and of eukaryotic cells. Elongated or false feet, help in amoebas' these single-celled organisms move. - Describe four examples of extracellular matrix in different organisms.arrow_forwardSkeletal muscle cells, skeletal muscle tissue. sketch of one Skeletal muscle Cell and Sketch of Skeletal muscle, l.s. (tissue) then define the tissue and the organ.arrow_forward
- Screenshot for context. Can someone help me understand how do they come up with the surface area/volume ratio? (Biology-Cell)arrow_forwardgive 3 function of the cell membrane and (a) tell which component of the cell membrane enable it to perform this function? (each of the 3 function) (b) tell how do these components help the cell membrane in performing this function? (each of the 3 function). plsssssss help me answer this question, thank you.arrow_forwardCell Membrane and Cell Transport WebQuest Part I: Cell Membranes Go to the following website: www.biology4kids.com/ files/cell_membrane.html 1. How is the cell membrane similar to a plastic bag with tiny holes? 2. What two components make up the cell membrane? a. What are their functions? 3. What is the fluid mosaic model? 4. Sketch a section of the cell membrane, showing both phospholipids and proteins. Label your drawing. 5. Label the diagram of the phospholipid molecule below with the following terms: hydrophilic head, hydrophobic tail This diagram shows a Head simplified version of a phospholipid molecule. Tailsarrow_forward
- Biology a. Assuming a protein is present in the cell at 1 µM concentration, how many copies of that protein are present (on average) in a 1 µm3 volume (roughly the volume of a bacterium)? b. What is the corresponding volume per molecule in nm3? c. If the protein were approximately spheres with diameter 5 nm, what fraction of the volume would the protein (still at 1 µM) occupy? d. Repeat part a of this question, but now with concentration 1 nM. e. Repeat part a of this question, but now for a yeast cell (assume yeast cell is a sphere with diameter 5 µm)..arrow_forwardGive Detailed Solution (no need Handwritten)arrow_forwardWhat I Can Do Cells are highly organized structures with parts that perform specific functions. Starting from the cell membrane with its incomparable abilities not only to provide shape and flexibility to the cell but also to determine the nature of its interaction with its environment. For you to recognize these functions, make an illustration (with a title) that shows a place which resembles a cell membrane. Also, write the things that you think they are similar. Your product will be assessed based on the following criteria: organization and content accuracy, appropriateness of elements, creativity, and appearance. The actual rubric to be used in assessing your product will be found on page 21. Assessment Let's see how well you have enjoyed the amazing world of çell cycle and mitosis byarrow_forward
- LAB EXERCISE 3A A. Cell Membranes. In the square provided, draw a double layer of phospholipids with a large protein embedded within it. Label the parts of this phospholipid bilayer that are partially charged (polar) and uncharged (non-polar). B. Anatomy of a Cell. Draw a "typical" cell in the space below (see lecture notes or the labeled/unlabeled Images on Canvas). Sketch the following organelles within the cell and label them. Plasma (Cell) Membrane Nucleus Ribosome Rough Endoplasmic Reticulum Smooth Endoplasmic Reticulum Golgi Apparatus Mitochondria Lysosome Cytoplasm Microvilli Cilia A region of exocytosisarrow_forwardHelping tags: Biology, cytoskeleton, microfilaments, microtubules, intermediate filaments, cell shape, cell movement Will UPVOTE, just pls help me answer the question is attached on the image. Thanks.arrow_forwardCELL STRUCTURE AND FUNCTION – EUKARYOTES, PROKARYOTES AND VIRUSES-LABORATORY REPORT SHEET ACTIVITY 2: CELL MEMBRANES, OSMOSIS AND DIFFUSION Initial Volume (Vi) (mL) Final Volume (Vf) (mL) Change in Volume (Vi – Vf) (mL) A 20% sucrose 20% sucrose 92.0 mL 94.0 mL -2.0 mL B 40% sucrose 20% sucrose 92.0 mL 92.0 mL 0.0 mL C 20% sucrose 40% sucrose 92.0 mL 90.0 mL 2.0 mL Treatment Percent Change A -2% B 0% C 2% Hypothesize which dialysis bags should gain, lose or stay the same in regards to volume. Explain. Which solution is hypotonic, hypertonic and isotonic? Explain what the change in volume of the dialysis tube indicated and describe what happened when the volume increased and when the volume decreased. Explain the relationship between solute concentration and amount of free water or water available for movement.arrow_forward
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