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- please choose correct letter and explain a bit 1. The strongest way by which a protein can maintain its shape is by using:a) ionic bonds b) disulfide bonds c) star war forces d) van der Waals forces 2. If a cell (like an amoeba) would be capable of migrating from one place to another only with movement created from the inside of the cell, then we can say that that movement is done mainly by: a) glycoproteins b) feet c) microtubules d) actin filaments True or False: In eukaryotic cells (such as human cells), the variety and diversity of proteins is much less than the variety and diversity of lipids.MAIN IDEA: Eukaryotic cells have an extensive and dynamic framework called a cyto- skeleton. The cytoskeleton is used for cell shape, internal structure, movement, and cell division. Many cells are surrounded by and supported by a complex extracellular matrix and are able to interact with adjacent cells and the environment via cell junctions. 5. List three common components of microtubules and microfilaments.Ch 6 – The Cell What is the difference between the light microscope, scanning electron microscope and transmission electron microscope? Define the cell theory. Give examples of eukaryote cells. What is the difference between prokaryotes and eukaryotes? List all the organelles of a eukaryote cell with their function. Describe the detailed structure of all eukaryote organelles. What is the difference between a plant cell and animal cell? List the organelles that are part of the endomembrane system. Describe how the organelles of the endomembrane system function as a factory of the cell. Describe the structure of the mitochondria and chloroplast. Which organelle has one layer of membrane? Which organelle has more than one layer (state how many layers) of membrane? List the 3 types of cytoskeleton. Give examples for each type. Describe the function of each type of cytoskeleton. Book: Biology (Campbell) 11 edition Urry. Cain. Wasserman. Minorsky. Reece
- In the context of cell biology, what do we mean by form follows function? What are a least two examples of this concept?Cell Biology 1. Describe the structural characteristics of cells that are highly specialized to do the following: (a) synthesize and secrete proteins, (b) actively transport substances into the cell, (c) synthesize lipids, and (d) phagocytize foreign substances.MAIN IDEA: Eukaryotic cells have an extensive and dynamic framework called a cyto- skeleton. The cytoskeleton is used for cell shape, internal structure, movement, and cell division. Many cells are surrounded by and supported by a complex extracellular matrix and are able to interact with adjacent cells and the environment via cell junctions. 3. List three common components of microtubules and microfilaments. 6. Complete the paragraph to describe how organelles help cells and cell contents move around. _j help to move cell components, such as a cell's during cell division. They rapidly assemble strengthen duplicated hen needed and then disassemble. and change the shape of a eukaryotic cell. In this way they can help the cell move. Organized arrays of are found in and of eukaryotic cells. Elongated or false feet, help in amoebas' these single-celled organisms move. - Describe four examples of extracellular matrix in different organisms.
- Cell Membrane and Cell Transport WebQuest Part I: Cell Membranes Go to the following website: www.biology4kids.com/ files/cell_membrane.html 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? 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 tail This diagram shows a Head simplified version of a phospholipid molecule. TailsPart A - Comparing plant cells and animal cells Plant cells and animal cells share many of the same structures, but each type of cell also has unique structures. In this activity, you will indicate which cell structures are found only in plant cells, only in animal cells, or in both plant and animal cells. Drag each cell structure to the appropriate bin. If a structure is found in both plant cells and animal cells, drag it to the "both" bin. ► View Available Hint(s) chloroplast plant cell only cellulose cell wall mitochondrion endoplasmic reticulum nucleus animal cell only central vacuole plasma membrane Golgi apparatus both centriole Reset Help cytoskeleton1. The Size of Cells and Their Components A typical eukaryotic cell has a cellular diameter of 50 μm. a. If you used an electron microscope to magnify this cell 10,000-fold, how big would the cell appear? b. If this cell were a liver cell (hepatocyte) with the same cellular diameter, how many mitochondria could the cell contain? Assume the cell is spherical; that the cell contains no other cellular components; and that each mitochondrion is spherical, with a diameter of 1.5 µm. (The volume of a sphere is ¹/3ær³.) c. Glucose is the major energy-yielding nutrient for most cells. Assuming a cellular concentration of 1 mè glucose (that is, 1 millimole/L), calculate how many molecules of glucose would be present in the spherical eukaryotic cell. (Avogadro's number, the number of molecules in 1 mol of a nonionized substance, is 6.02 × 10²³.)
- 1. Identify features that are present in eukaryotic cells but not in prokaryotic cells. Select all that apply. 2. What part of all cells encases the cytoplasm and forms a boundary between the cell interior and cell exterior? 3. What structure is found in plant cells but not in animal cells? 4. In plant cells, what structure lies just outside the cell membrane and provides strength and support to the plant cell? 5. What structure found in plant cells is an organelle for storing water and metabolites? 6. Identify the features common to all cells. 7. Identify the features present in animal cells.CU: Structure and Function In the 1800s two scientists, Theodor Schwann and Matthias Schleiden, studied different types of organisms. After many years of studying a great variety of organisms, they drew similar but independent conclusions about their observations. Schwann studied animals and concluded that all animals are made of cells. Schleiden studied plants and concluded that all plants are made of cells. What statement was developed most directly from these conclusions and is part of the modern cell theory? Cells contain hereditary information. O Cells exist only in multicellular organisms. The functions of living things occur in cells. Living things are composed of cells. 1 2 3 4 5 6 DELL 441Which electron or light microscopy technique would you use for the following? (also explain) For visualizing the fine structure of cellular organelles and cell architecture in the cell interior using very thin cross-sections made in Epon. To obtain sequential images of a macromolecule in order to study its activity in real-time. To obtain an extremely clear three-dimensional image of the nucleus of a single cell. What is the magnification of the image in a microscope using a 20x ocular and a 100x objective?