Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 1, Problem 1.2PS
QUANTITATIVE Cell Sizes. To appreciate the differences in cell size illustrated in Figure 1-3a, consider these specific examples. Escherichia coli, a typical bacterial cell, is cylindrical in shape, with a diameter of about 1 μm and a length of about 2 μm. As a typical animal cell, consider a human liver cell, which is roughly spherical and has a diameter of about 20 μm. For a typical plant cell, consider the columnar palisade cells located just beneath the upper surface of many plant leaves. These cells are cylindrical, with a diameter of about 20 μm and a length of about 35 μm.
(a) Calculate the approximate volume of each of these three cell types in cubic micrometers. (Recall that V = πr2h for a cylinder and that V = 4πpr3/3 for a sphere.) Use three significant figures for these calculations.
(b) Approximately how many bacterial cells would fit in the internal volume of a human liver cell?
(c) Approximately how many liver cells would fit inside a palisade cell?
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Match the following organelles to their function or analogy.
1. The
stores the DNA for the eukaryotic cell.
2. The
can be smooth or rough and may be a site of manufacture of proteins or transport of various materials in a eukaryotic cell.
3. The
is found mostly in plant cells and creates food (stored energy) using sunlight.
4. The
packages up different proteins or other materials and sends its packages all over the eukaryotic cell.
5. The
manufactures proteins in all cells.
6. The
is a rigid exterior protective part of the cell that gives it shape and is not found in all cells.
7. The
transports things throughout the eukaryotic cell and sometimes out of the cell.
: cell membrane
: cell wall
: chloroplast
: cytoplasm
: cytoskeleton
: lysosome
: mitochondria
: nucleus
: ribosomes
: vacuole
: endoplasmic reticulum
: vesicle…
Part A - Comparing plant cells and animal cells
Plant cells and animal cells share many of the same structures, but each type of cell also has unique structures. In this activity, you will indicate which cell structures are found only in
plant cells, only in animal cells, or in both plant and animal cells.
Drag each cell structure to the appropriate bin. If a structure is found in both plant cells and animal cells, drag it to the "both" bin.
► View Available Hint(s)
chloroplast
plant cell only
cellulose cell wall
mitochondrion endoplasmic reticulum
nucleus
animal cell only
central vacuole
plasma membrane
Golgi apparatus
both
centriole
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cytoskeleton
Chapter 1 Solutions
Becker's World of the Cell (9th Edition)
Ch. 1 - What evidence led scientists to develop the basic...Ch. 1 - Why is a high degree of antibody-antigen...Ch. 1 - You have discovered a defective gene that allows...Ch. 1 - Prob. 1.3CCCh. 1 - The Historical Strands of Cell Biology. For each...Ch. 1 - QUANTITATIVE Cell Sizes. To appreciate the...Ch. 1 - QUANTITATIVE Sizing Things Up. To appreciate the...Ch. 1 - Problem Set QUANTITATIVE Limits of Resolution Then...Ch. 1 - The Contemporary Strands of Cell Biology. For each...Ch. 1 - The Facts of Life. Each of these statements was...
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- Screenshot for context. Can someone help me understand how do they come up with the surface area/volume ratio? (Biology-Cell)arrow_forwardQIV. Determine if the level of organization is molecular or cellular. Tick True if molecular. Tick False if cellular. Prokaryotic cells have no membrane-bound nucleus, and the organelles have no surrounding membranes. Select one: O True O Falsearrow_forwardplease choose correct letter and explain a bit 1. The strongest way by which a protein can maintain its shape is by using:a) ionic bonds b) disulfide bonds c) star war forces d) van der Waals forces 2. If a cell (like an amoeba) would be capable of migrating from one place to another only with movement created from the inside of the cell, then we can say that that movement is done mainly by: a) glycoproteins b) feet c) microtubules d) actin filaments True or False: In eukaryotic cells (such as human cells), the variety and diversity of proteins is much less than the variety and diversity of lipids.arrow_forward
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