Campbell Biology in Focus
Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 3.4, Problem 3CC
Summary Introduction

To explain:

The form that a membrane might take when it surrounds an oil droplet.

Concept introduction:

Lipids are the biological molecules that are large and which do not comprise of polymers. They do not have any affinity for water because of their structure (molecular). They consist of mostly, the hydrocarbons. Fats comesunder the category of lipids. A membrane is a structure that surrounds a particular substance for providing protection to it.

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LE Manage Sources Insert Table of Figures Insert Index Insert Table Update Index Update Tal Mark Style: APA Bibliography Insert Caption Update Table Cross-reference Captions Citation F Citations & Bibliography Index Table of Auth Questions 1. A) If the potato cells were hypotonic to the surrounding solution, the surrounding solution itself would be what to the potato cells (hypertonic, hypotonic, or isotonic)? B) Were the potato cells submerged in water with no salt hypertonic, hypotonic, or isotonic to the surrounding environment? C) Were the potato cells submerged in 5 g/100mL salt solution hypertonic, hypotonic, or isotonic to the surrounding environment? D) Look at your graph. At approximately what concentration of salt solution would the potato cells have likely been isotonic with the surrounding solution? [Tip: Estimate approximately at what concentration there would have been no change in the average length of potato strips.] dnote -tnote tes On Search Researcher Research (-)…
Cytoplasmic streaming in plants…  Question options:   is the unidirectional movement of the cytoplasmic material around the central vacuole of the cell.   creates a whip-like motion used for motility in organisms such as Euglena sp.    is the beating back and forth of short microtubules dispersed around the cell to create motion (e.g. Paramecium sp.).    pushes the cytoplasm to one end of the cell and causes the plasma membrane to extend outward as a pseudopod.
1 In the space below, draw three plants cells: one that is turgid, one that is flaccid, and one that is plasmolyzed. Indicate with arrows the direction of the net movement of water across the cell membrane. Feel free to draw these in a notebook, then uploading a photo below. It’s also ok if you use some program like Paint.  2 Underneath each cell you drew above, label whether the plant that cell represents was placed in a hypertonic, hypotonic, or isotonic solution.  3 Design and describe an experiment using celery stalks to demonstrate how certain conditions will cause a loss or gain of turgor pressure. In order to follow the scientific method, your description should start with an observation and be followed by: a. a testable hypothesis, b. an outline of the experiment that will test the hypothesis, c. a description of the type of data that will be collected, and d. a possible conclusion that could likely be made after completing the experiment and analyzing the data.

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