What mechanism is responsible for movements of cilia and flagella? ()
A. Kinesin moving on actin filaments
B. Dynein moving on actin filaments C ) Dynein moving on microtubules
C. Myosin moving on actin filaments
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You have an assembly of polymerized protein, the monomer of which has a central rod-like domain flanked by N-terminal and C-terminal domains. What is this assembly? ()
A microtubule
B. An actin filament
C. An intermediate filament
D. Microbody
Which one of the following matches is INCORRECT? ()
A. rough endoplasmic reticulum –lipid synthesis
B. peroxisome -fatty acid breakdown
C. nuclear pores -RNA transport
D. lysosome -digestion of macromolecules
Which one of the following statements concerning the cytoskeleton is FALSE? ()
Addition of actin monomers to actin filaments typically occurs near the plasma membrane.
B. Streaming of cytoplasm in plant cells is brought about by the cytoskeleton.
C. Microtubules are the strongest filaments.
D. Intermediate filaments form the nuclear lamina that lines the inside of the nuclear membrane.
Which of the following statements is NOT part of the cell theory? ()
All organisms are composed of one or more cells
B. . Cells come from other cells by division
C. . Cells are the smallest living things
D. . Eukaryotic cells have evolved from prokaryotic cells
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