Cell Membrane and Cell Transport WebQuestPart I: Cell MembranesGo to the following website: www.biology4kids.com/ files/cell_membrane.html1. How is the cell membrane similar to a plastic bag with tiny holes?2. What two components make up the cell membrane?a. What are their functions?3. What is the fluid mosaic model?4. Sketch a section of the cell membrane, showing both phospholipids and proteins.Label your drawing.5. Label the diagram of the phospholipid molecule below with the following terms:hydrophilic head, hydrophobic tailThis diagramshows aHeadsimplifiedversion of aphospholipidmolecule.Tails

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Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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elow are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? Select one: a. Flagella and cilia are the same in terms of their structures. b. Flagella and cilia can be commonly found in prokaryotic, animal, and plant cells. c. In addition to motility, cilia can also play a role in moving particles on the surface of cells and for filtration. Clear my choice
13. The process of "cell drinking" is called: a. phagocytosis b. exocytosis c. pinocytosis d. digestion 14. The fibers and proteoglycans that form the Extracellular Matrix (ECM) connect with: a. vesicles formed by the plasma membrane b. integral proteins of the plasma membrane and the cytoskeleton c. integral proteins and phospholipid of the plasma membrane d. directly to the cytoskeleton of the cell 15. Which of the following is a passive process? a. exocytosis b. osmosis c. active transport d. phagocytosis 16. Which of the following will move easily through the plasma membrane of the cell? a. protein b. starch c. glycogen d. oxygen
32. Why is exocytosis needed by the cell? A. To capture materials needed by the cell B. To enter dissolved molecules needed by the cell C. To engulf undissolved substances needed by the cell D. To expel any type of molecules no longer needed by the cell
19. The Table below compares the cell features of various plant and animal cells. follow the examples given. XXX= "Present"
1. Protein synthesis is accomplished primarily by the interaction of which two cell structures? a. vacuoles and mitochondria b. ribosomes and vacuoles C. nuclei and ribosomes d. nuclei and mitochondria
What do the cells labeled A and B have in common that is lacking in C? A. В. C. ribosomes O plasma membrane cell wall O nucleus
1. What is the function of a cytoplasm and what part of our house has a similar function? 2. What is the function of a rough ER and what part of our house has a similar function? 3. What is the function of a smooth ER and what part of our house has a similar function?
What are components of the fluid mosaic model of the cell membrane? A. The cell membrane is a lipid bilayer with molecules such as cholesterol and proteins embedded in it. B. The lipid bilayer is a solid structure held together by chemical bonds. C. The cell membrane is a lipid bilayer with no other molecules embedded in it.
1 2- 3 4 5 6 Label the indicated structures in each type of cell in the illustrations below. Centrosome 15 14 13 Wall of adjacent cell AZA Plasmodesmata 12 8 -9 -10 11 12 13 -14 15
5. Which of the cells characterized in the chart below is a prokaryotic cell? Ribosome Cell Wall Nucleus Plasma Membrane Cell A Cell B Cell C Cell D A Cell A B Cell B C Cell C D Cell D
3. The diagram to the left represents the distribution of some molecules inside and outside of an artificial cell over a period of time. Which statement is best supported by the diagram? (1) Oxygen molecules entered the cell over time by active transport. (2) Water molecules are too large to enter or leave the cell, so they reMained where they were at the start of the investigation. (3) Protein molecules are kept inside of the cell because the cell needs them. (4) The protein molecules are too large to diffuse out of the cell.
1 pts Which statement below is correct when comparing plant and animal cells? O Plant cells only have a cell wall, and animal cells only have a plasma membrane. O Plant cells only have a plasma membrane, and animal cells only have a cell wall. Both plant and animal cells have a plasma membrane, and plant cells also have a cell wall. Both plant and animal cells have a plasma membrane and a cell wall. O Both plant and animal cells have a cell wall, but only animal cells have a plasma membrane. 1 nts

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1. How is the cell membrane similar to a plastic bag with tiny holes? 2. What two components make up the cell membrane? a. What are their functions? 3. What is the fluid mosaic model?