HUMAN ANAT+CNCT+POLLEV LBCC >IC<
14th Edition
ISBN: 9781259349461
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 2, Problem 3CR
Summary Introduction
To determine:
The meaning of the passive transport of substances into a cell.
Introduction:
The cell membrane is selectively permeable, so it is able to regulate the transport of materials in and out of the cell.
Summary Introduction
To determine:
The passive processes that move the material across the plasma membrane.
Introduction:
The passive transport of molecules across the semipermeable membrane is similar to floating downstream with the current.
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Check out a sample textbook solutionStudents have asked these similar questions
The following table depicts the rate of transport of a molecule into a cell as the external concentrations are changed. Based on what you know about the characteristics of membrane transport, the molecule is most likely transported by:
a) passive transport
b) simple diffusion across the membrane
c) facilitated diffusion
d) active transport
2) Explain how the following cell transport systems work moving materials around inside the cell and other functions. Focus on structure and function, and Include how energy is used to accomplish these movements.
A)Tubulin/Kinesin
B)Actin/Myosin
Which of the following is true of exocytosis, but not true of facilitated diffusion?
Select all that apply.
A) Involves transport vesicles
B) May be used to move a hydrophilic substance to the other side of the membrane
C) Requires energy
D) Always moves a substance down its concentration gradient
E) Always results in a substance exiting from the cell
.
Chapter 2 Solutions
HUMAN ANAT+CNCT+POLLEV LBCC >IC<
Ch. 2 - Describe an advantage of using TEM rather than LM...Ch. 2 - Prob. 2WYLCh. 2 - Prob. 3WYLCh. 2 - Prob. 4WYLCh. 2 - In general, what materials may cross a selectively...Ch. 2 - What is diffusion?Ch. 2 - Describe the process of osmosisCh. 2 - Discuss the similarities between facilitated...Ch. 2 - Describe the characteristics of the cytosol.Ch. 2 - Describe the functions of lysosomes, mitochondria,...
Ch. 2 - Contrast the fates of proteins synthesized on free...Ch. 2 - What is the function of cilia?Ch. 2 - What is the function of the nuclear envelope?Ch. 2 - What is the difference between chromatin and...Ch. 2 - Observation shows that most cells are suspended in...Ch. 2 - List the stages of mitosis in order of occurrence....Ch. 2 - Prob. 17WYLCh. 2 - Prob. 18WYLCh. 2 - Match each numbered item with the most closely...Ch. 2 - Prob. 1MCCh. 2 - Prob. 2MCCh. 2 - Facilitated diffusion differs from active...Ch. 2 - Which plasma membrane structures serve in cell...Ch. 2 - _____ increase the outer surface area of the...Ch. 2 - Prob. 6MCCh. 2 - Interphase of the cell cycle consists of the...Ch. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - Prob. 10MCCh. 2 - Describe three main regions common to all cells,...Ch. 2 - Prob. 2CRCh. 2 - Prob. 3CRCh. 2 - Prob. 4CRCh. 2 - Prob. 5CRCh. 2 - Prob. 6CRCh. 2 - Identify the three parts of the cytoskeleton, and...Ch. 2 - What are the basic components of the nucleus, and...Ch. 2 - Prob. 9CRCh. 2 - Identify the phases of mitosis, and briefly...Ch. 2 - Prob. 1DCRCh. 2 - Prob. 2DCR
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements is correct about passive diffusion? Select one: A) It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient). B) It is a process in which molecules move from a region of higher concentration to a region of lower concentration (or down a concentration gradient). C) It requires an expenditure of energy by the cell. D) It may require a transport protein. E) It involves movement of molecules down a concentration gradient and may require a transport protein.arrow_forwardFactors that affect the rate of diffusion through a membrane include all of the following EXCEPT: a)membrane surface area. b) molecular weight. c) availability of energy. d) steepness of concentration gradient.arrow_forwardMagnesium ions are in higher concentration inside the cell. What process would the magnesium ions use to enter the cell? Hint: drawing a picture may help you. A) receptor-mediated endocytosis B) active transport C) simple diffusion D) osmosis E) Facilitated diffusionarrow_forward
- Among the statements a, b and c, which is/are false? a) Endocytosis is the formation of vacuoles by the plasma membrane for the purpose oftransport inside the cell a small content of extracellular fluid. b) Exocytosis is the formation of vacuoles by the plasma membrane for the purpose oftransport a small amount of intracellular fluid out of the cell. c) Pinocytosis is a form of endocytosis. d) All of these statements are false. e) None of these statements is false.arrow_forwardIn the cell there are three types of filaments that form the cell skeleton. Answer:a)Which they are.b)How they are constructed.c)What their function is.arrow_forwardDefine and provide an example for each of the following: simple diffusion, facilitated diffusion, osmosis, passive transport and active transport.arrow_forward
- Describe the permeability of cell membranes. How to substances cross cell membranes? Utilize the terms bi-polar, semi-permeable, diffusion, active transport, membrane proteins, endocytosis, exocytosis, vesicles, phagocytosis, pinocytosis, etc. (This should be 3-4 paragraphs long)arrow_forwardEndocytosis and exocytosis are both forms of [ ACTIVE / PASSIVE ] transport that [ DO / DO NOT ] require energy. Outline an example/scenario in which a cell would need to perform a form of endocytosis. Outline an example/scenario in which a cell would need to perform exocytosis. a) Name the 3 specific types of endocytosis. b) Exocytosis is considered the opposite/reverse process as? Pls helparrow_forward. what are two structural characteristics of cell membrane determine whether substances can pass through them passively? What determines whether or not a substance can be actively transported through the membrane?arrow_forward
- Proteins which are only on one side of the plasma membrane and may not interact with the phospholipids directly. The proteins are often involved in intracellular signialing. a) cholesterol b) peripheral protein c) integral proteins D) glycolipidarrow_forwardExplain and Illustrate how diffusion works via the cell membrane. Include references.arrow_forwardUnder what environmental conditions does water move into a cell byosmosis?arrow_forward
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