BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 4, Problem 7MCQ
Summary Introduction
Introduction:
When an egg is placed in vinegar for a long period of time. The shell made up of calcium carbonate will get dissolved in it. Only a semipermeable layer is present around the chicken egg after the dissolution of the outer protective layer. This egg without outer covering is called a naked egg.
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You are working with cells that have an internal solute concentration of 5mM solute. This solute is large and ionized. You place them in a medium that has a concentration of 7.7 mM solute. What will happen?
a.
The cells will swell initially, then return to their original size.
b.
The cells will shrink in size.
c.
I do not expect anything to happen.
d.
The cell will burst.
As the environmental temperature decreases, what happens to a cell membrane?
A. It becomes more fluid.
B. It becomes less fluid.
C. It expands.
D. It breaks apart.
E. A and D
A selectively permeable
A. allows some substance to move across the membrane, but not others
B. allows unlimited movement of materials into or out of the cell
C. allows substances to enter, but prevent any substances from leaving the cell
D. allows only helpful materials to cross the the cell membrane into the cell
Chapter 4 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 4.1 - Describe how your body has potential and kinetic...Ch. 4.1 - Prob. 2MCCh. 4.2 - Prob. 1MCCh. 4.2 - Prob. 2MCCh. 4.2 - Prob. 3MCCh. 4.3 - Prob. 1MCCh. 4.3 - Describe the relationship between energy-requiring...Ch. 4.4 - Prob. 1MCCh. 4.4 - Prob. 2MCCh. 4.4 - What is the role of negative feedback in enzyme...
Ch. 4.4 - Prob. 4MCCh. 4.5 - Prob. 1MCCh. 4.5 - What types of substances diffuse freely across a...Ch. 4.5 - What would happen to a plant cell in a hypertonic...Ch. 4.5 - Prob. 4MCCh. 4.5 - Prob. 5MCCh. 4.5 - Prob. 6MCCh. 4 - Prob. 1MCQCh. 4 - How does ATP participate in coupled reactions? a....Ch. 4 - How do proteins contribute to the function of an...Ch. 4 - Prob. 4MCQCh. 4 - Prob. 5MCQCh. 4 - Prob. 6MCQCh. 4 - Prob. 7MCQCh. 4 - Prob. 8MCQCh. 4 - How does ATP relate to membrane transport? a. The...Ch. 4 - Prob. 1WIOCh. 4 - Prob. 2WIOCh. 4 - Prob. 3WIOCh. 4 - Prob. 4WIOCh. 4 - Use what you know about enzymes to propose an...Ch. 4 - Considering that enzymes are essential to all...Ch. 4 - Prob. 7WIOCh. 4 - Prob. 8WIOCh. 4 - Prob. 9WIOCh. 4 - List three ways the content in this chapter...Ch. 4 - Golden knifefish use an electric field to detect...Ch. 4 - Review Burning Question 4.4, which explains how...Ch. 4 - Prob. 1PITCh. 4 - Prob. 2PITCh. 4 - Prob. 3PITCh. 4 - Prob. 4PIT
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- If an animal cell is placed into an environment in which the solute concentration outside the cell is lower than inside the cell, the cell will_____________. A. pump water out B. shrink C. swell D. stay the same sizearrow_forwardWhen water is entering and leaving a cell at a constant rate the environment is most likely _______________to the cell. A. Homeostatic B. Hypotonic C. Isotonic D. Hypertonicarrow_forwardWhat direction is the sugar molecule (the blue hexagon) going to diffuse? a. Into the cytoplasm b. Into the extracellular fluid (i.e. the fluid outside the cell) c. The same number of sugar molecules will move into the cytoplasm and the extracellular fluid. d. No diffusion will occur - the membrane prevents all molecules from entering or exiting a cell.arrow_forward
- The main difference between plant and animal cells is: A Plant cells has small vacuoles B Animal cell lacks rigid cell wall C Animal cells has large vacuoles D Plant cell lacks rigid cell wallarrow_forwardWhat is the function of a cell wall?Single choice. A. to protect and support the cell B. to perform different functions in each cell C. to prevent water from passing through itarrow_forward1. A researcher is studying White Blood Cells (Leukocytes) of a patient infected with Tuberculosis bacteria. He notices that the bacteria are in vesicles in the cytoplasm. How did the bacteria come to be inside the cell? a.Exocytosis b.Pinocytosis c.Receptor-mediated endocytosis d.Transcytosis Active transport must function continuously because ________________. a.facilitated transport opposes active transport b.not all membranes are amphiphilic c.diffusion is constantly moving solutes in opposite directions d.the cell needs ions outside the cell e.plasma membrane wear outarrow_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_forwardmagine three identical animal cells, each placed in one of the three beakers labelled A, B, C. Beaker A contains a solution that is hypertonic to the cell contents; Beaker B contains a solution that is hypotonic to the cell contents; Beaker C contains a solution that is isotonic to the cell contents. Predict what will happen to the cells in each beaker. Give reasons for your prediction.arrow_forwardAs the size of a cell decreases, the ratio of its surface area to volumea. increases.b. decreases.c. stays the same.arrow_forward
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