Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 17RFT
A selectively permeable plasma membrane
(a) permits only water-soluble materials to enter or leave the cell freely.
(b) prohibits entry of all materials into the cell at certain times.
(c) permits the free passage of some materials but restricts passage of others.
(d) allows materials to enter or leave the cell only using active processes.
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The fundamental bilayered structure of the plasma membrane is determined almost exclusively by (a) phospholipid molecules, (b) peripheral proteins, (c) cholesterol molecules, (d) integral proteins.
c) Figure 3 shows how materials are actively transported across plasma membrane.
Extracellular
Process X
Process Y
Figure 3
i) Give two (2) similarities between process X and Y.
ii) State two (2) characteristics of a cell that carry out active transport.
....
......
..... ...
..........
List the organelles that are plentiful in cells
that
(a) synthesize and secrete proteins,
(b) actively transport substances into cells,
and
(c) ingest foreign substances by
endocytosis.
Explain the function of each organelle you
list.
Chapter 2 Solutions
Human Anatomy (8th Edition) - Standalone book
Ch. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Prob. 2RFTCh. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Level 1 Reviewing Facts and Terms
Match each...Ch. 2 - Prob. 5RFTCh. 2 - Prob. 6RFTCh. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Match each numbered item with the most closely...Ch. 2 - Prob. 9RFTCh. 2 - All of the following membrane transport mechanisms...
Ch. 2 - Prob. 11RFTCh. 2 - Compared to the intracellular fluid, the...Ch. 2 - 13. Label the following organelles on the diagram...Ch. 2 - Prob. 14RFTCh. 2 - Prob. 15RFTCh. 2 - 16. Three major functions of the endoplasmic...Ch. 2 - 17. A selectively permeable plasma membrane
(a)...Ch. 2 - Prob. 18RFTCh. 2 - Identify the advantages a cell has because its...Ch. 2 - 2. Identify the three basic concepts that make up...Ch. 2 - 3. Identify the three passive processes by which...Ch. 2 - Compare and contrast facilitated diffusion and...Ch. 2 - Prob. 5RCCh. 2 - Prob. 6RCCh. 2 - 7. Name the stages of mitosis shown in this...Ch. 2 - Identify the four general functions of the plasma...Ch. 2 - Tell why the skin of your hands gets swollen and...Ch. 2 - Prob. 2CTCh. 2 - Experimental evidence demonstrates that in the...
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- 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_forwardWhich of the following is not a function of the plasma membrane? (a) transports materials (b) helps structurally link cells (c) has receptors that relay signals (d) anchors the cell to the extracellular matrix (e) manufactures proteinsarrow_forwardWhich statements are consistent with the fluid-mosaic model of membranes? (a) All membrane proteins are bound to the interior of the membrane. (b) Both proteins and lipids undergo transverse (flip-flop) diffusion from the inside to the outside of the membrane. (c) Some proteins and lipids undergo lateral diffusion along the inner or outer surface of the membrane. (d) Carbohydrates are covalently bonded to the outside of the membrane. (e) The term mosaic refers to the arrangement of the lipids alone.arrow_forward
- In 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_forwardWithout a properly functioning membrane, a cell would (a) not be able to give instructions to its organelles (b) not be able to hold a rigid shape (c) not be able to absorb sunlight (d) not be able to remove waste materialsarrow_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_forward
- Which of the following describes the plasma membrane? 1) phospholipid bilayer surrounding the cell 2) a membrane composed of tiny shelves or cristae 3) single-layered membrane that surrounds the nucleus of the cell 4) double layer of protein enclosing the plasmaarrow_forwardName the parts of a cell in which the following organelles exist: (a) centrioles, (b) microtubules, (c) nuclear envelope, (d) chromatin. What are their functions?arrow_forwarda) Give the two main membrane proteins.b) State a function each of the mentioned protins. c) Explain why change in pH can affect the function of the proteins.arrow_forward
- If a membrane protein is described as "integral" what does that word refer to? A) super important; plays a key function B) It is bonded to a non protein molecule like a sugar chain or lipid C) It must be an ID tage/ cell recognition protein D) It is strongly integrated/ embedded into the membrane likely spanning the entire widtharrow_forward-Mature parent cell Budding- cell 1 μη Test II. Examine the micrograph of the yeast cells. The scale bar under the photo is labeled 1 um. The scale bar works in the same way as a scale on a map, where, for example, 1 inch equals 1 mile. In this case the bar represents one thousandth of a millimeter. Using the scale bar as a basic unit, determine the diameter of the mature parent cell and the new cell. Start by measuring the scale bar and the diameter of each cell. The units you use are irrelevant, but working in millimeters is convenient. Divide each diameter by the length of the scale bar and then multiply by the scale bar's length value to give you the diameter in micrometers.arrow_forward1) All of the following are functions of proteins within a membrane except __________. A)Maintaining the fluidity of membranes B)transport ions and other polar substances C)receptors to bond molecules outside of the cell D)helping the body to recognize its own cells 2) Which of the following organelles is not part of the endomembrane system A)mitochondria B)golgi apparatus C)lysosomes D)rough endoplasmic reticulum 3) Which cytoskeletal element is composed of actin and is involved with muscle contraction and provided strength to cells during stretching and compression? A)Microfilimants B)Intermediate filaments C)Microtubules D)Flagellaarrow_forward
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