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SCIENTIFIC INQUIRY Although both ends of a microtubule can gain or lose subunits, one end (called the plus end)
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- Actin filaments and microtubules are similar with respect to each of the following EXCEPT: inherent polarity with plus and minus ends growth requires an organizing center association with motor proteins both are polymers of subunits regular remodelingarrow_forwardMatch each term with its best description. ___ cell plate a. lump of cells ___ spindle b. made of microfilaments ___ tumor c. divide plant cells ___ cleavage furrow d. spindle originates here ___ contractile ring e. dangerous metastatic cells ___ cancer f. made of microtubules ___ centrosomes g. indentation ___ telomere h. shortens with agearrow_forwardWhich of the following properties are shared by desmosomes and hemidesmosomes? Select all that apply. They both are protein structures found in eukaryotic cells They both bind extracellular matrix proteins They both bind to intermediate filaments They both bind to acti filamentsarrow_forward
- The subunits of which filament bind to GTP, a condition that favors the polymerization of the cytoskeletal subunits? O Intermediate filaments Microfilaments O Microtubulesarrow_forwardWhat is the function of the nuclear matrix?arrow_forwardPut the following in order of size from smallest to largest microtubules sarcomere intermediate filaments microfilaments dynienarrow_forward
- Scientists often extract DNA from the nucleus of cells for analysis or use. This process breaks the cell membrane, spins the solution to remove the large particles through high g-force, adds alcohol to make the DNA less soluble aqueous solution, then spins the solution again to pull the DNA out of solution. Consider a cell in metaphase compared to a cell in rest (not in the cell cycle leading to cell division). What properties of a metaphase cell might let you extract more DNA compared to the resting cell? Are there any that might make the extraction more difficult?arrow_forwardIntegrins are important in cell crawling because they anchor the leading edge of the cell to the surface it is moving over they are receptors for diffusible chemical ligands that determine the direction the cell will move in they cross-link actin filaments to microtubules and intermediate filaments of the cytoskeleton they serve as nucleating sites for polymerization of new actin filamentsarrow_forwardcan microtubule replace actin filament?why or why not?arrow_forward
- + 1. What are the components of the cytoskeleton in an animal cell? Fill in the table below to explain: Type of Cytoskeletal Structure Subunits and Shape Size (smallest, intermediate, largest) Function(s) Associated Motor Proteins Microtubules Intermediate Filaments n/a Microfilaments 0arrow_forwardWhat is an analogy for a smooth endoplasmic reticulum?arrow_forwardWhat is the role of actin filaments?arrow_forward
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax