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Exam 3: Cell Structure

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Question 21

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​Match the following cytoskeletal filaments and their associated motor proteins with the appropriate description. -​motor protein that interacts with microtubules to create movement in flagella and cilia A)​microfilaments B)​microtubules C)​dynein D)​intermediate filaments E)​myosin

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Question 22

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​To visualize the structure of DNA, which has a width of 10 nm, which microscope would be best?

A) ​fluorescence microscope
B) ​light microscope
C) ​staining microscope
D) ​polarized microscope
E) ​electron microscope

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Question 23

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Matching Examine the following figure. Match each letter of the figure with the appropriate cell structure. ​ -​DNA A)A B)B C)C D)D E)E F)F G)G

​Why are adhering junctions common in tissues subject to constant abrasion or stretching, such as skin?

​The organelle that pinches off portions of its membrane to form a vesicle used for storage or transport is the ____.

Match each cell structure represented with the appropriate description. -organelles of photosynthesis A)peroxisomes B)chloroplasts C)Golgi bodies D)DNA molecules E)cuticle F)central vacuoles G)lysosomes H)mitochondria I)pseudopods J)ribosomes

​Plasmids are ____.

​Extracellular matrix is typically composed of ____.

​Match the following cytoskeletal filaments and their associated motor proteins with the appropriate description. -​motor protein that associates with microfilaments to generate muscle contraction A)​microfilaments B)​microtubules C)​dynein D)​intermediate filaments E)​myosin

​Match the following cytoskeletal filaments and their associated motor proteins with the appropriate description. -​form a meshwork that provides structure and resilience to the cell A)​microfilaments B)​microtubules C)​dynein D)​intermediate filaments E)​myosin

​The following are organelles found in animal cells. Match the organelle with the appropriate description. An answer may be used more than once. -​This organelle is studded with ribosomes. A)​nucleus B)​mitochondrion C)​lysosome D)​Golgi body E)​ribosome F)​rough endoplasmic reticulum G)​smooth endoplasmic reticulum

​The following are organelles found in animal cells. Match the organelle with the appropriate description. An answer may be used more than once. -​This organelle translates RNA into protein. A)​nucleus B)​mitochondrion C)​lysosome D)​Golgi body E)​ribosome F)​rough endoplasmic reticulum G)​smooth endoplasmic reticulum

​The phospholipids of plasma membranes contain _____.

Match each cell structure represented with the appropriate description. -in plants, a secreted extracellular membrane that helps to prevent water loss A)peroxisomes B)chloroplasts C)Golgi bodies D)DNA molecules E)cuticle F)central vacuoles G)lysosomes H)mitochondria I)pseudopods J)ribosomes

The double membrane of mitochondria contains the ATP-making machinery; therefore, this is where ____ would be found.

​The enzyme catalase functions in the breakdown of hydrogen peroxide, a toxic by-product of fatty acid digestion. In which cellular organelle is catalase found?

​Transport proteins _____.

​Which organelle functions in the recapture of energy from organic compounds?

Match each cell structure represented with the appropriate description. -enzyme filled vesicle that breaks down amino acids, fatty acids, and toxic substances A)peroxisomes B)chloroplasts C)Golgi bodies D)DNA molecules E)cuticle F)central vacuoles G)lysosomes H)mitochondria I)pseudopods J)ribosomes

Which hairlike cellular projections line the respiratory tract and sweep inhaled particles away from the lungs?