Nros 310 exam 3 - Study guides, Class notes & Summaries

What are the three main components of the cytoskeleton and what are their main functions? - ANSWER Microfilaments (actin): sense the environment and direct movement Intermediate Filaments: maintain cell shape/structure, anchor organelles Microtubules: for transport What are the main similarities and differences between the three components of the cytoskeleton? - ANSWER Similarities: -important for cytoskeletal structure -charged ends; form a highway for motor protein Differences: ...

Lecture 25 Cytoskeleton: A) 3 main components B) main functions - ANSWER A) Actin, microtubules, & intermediate filaments B) Actin - direct movement Microtubules - transport Intermediate - support cell shape What are the main similarities and differences between the three components of the cytoskeleton? - ANSWER Main similarities: - charged ends & highway for proteins Main differences: - size & function Describe how the assembly of actin filaments is regulated. Includ...

What are the three main components of the cytoskeleton and what are their main functions? - ANSWER Microfilaments: movement microtubules: transport of cellular materials intermediate: support What are the main similarities and differences between the three components of the cytoskeleton? - ANSWER all are important for cytoskeleton structure differ in size Describe how the assembly of actin filaments is regulated. Include both the role of associated protein and monomer concentration. -...

What are the three main components of the cytoskeleton and what are their main functions? - ANSWER Microfilaments (actin): sense the environment and direct movement Intermediate Filaments: maintain cell shape/structure, anchor organelles Microtubules: for transport What are the main similarities and differences between the three components of the cytoskeleton? - ANSWER Similarities: -important for cytoskeletal structure -charged ends; form a highway for motor protein Differences: ...

Why are there motor proteins associated with both actin filaments and microtubules but not intermediate filaments? - ANSWER Actin filaments and microtubules are highly polarized, therefore allowing motor proteins to form associations with them. Intermediate filaments are unpolarized and do not bind nucleotides such as ATP, leading to lack of motor protein associations (which are ATP driven). How does the hydrolysis of ATP cause myosin to move along the actin filament? - ANSWER ATP hydrolysis ...

Why are there motor proteins associated with both actin filaments and microtubules but not intermediate filaments? - ANSWER Actin filaments and microtubules are highly polarized, therefore allowing motor proteins to form associations with them. Intermediate filaments are unpolarized and do not bind nucleotides such as ATP, leading to lack of motor protein associations (which are ATP driven). How does the hydrolysis of ATP cause myosin to move along the actin filament? - ANSWER ATP hydrolysis ...

What are the three main components of the cytoskeleton and what are their main functions? - ANSWER Microfilaments (actin): sense the environment and direct movement Intermediate Filaments: maintain cell shape/structure, anchor organelles Microtubules: for transport What are the main similarities and differences between the three components of the cytoskeleton? - ANSWER Similarities: -important for cytoskeletal structure -charged ends; form a highway for motor protein Differences: ...

Cytoskeleton: A) 3 main components B) main functions -ANSWER A) actin filaments, microtubules, and intermediate filaments B) actin - sense the environment and direct movement microtubules - for transport intermediate - help keep the cell shape, to anchor organelles What are the main similarities and differences between the three components of the cytoskeleton? -ANSWER Main similarities: - all important for cytoskeleton structure - MT & Fila: charged ends; form a highway for m...

Lecture 25 Cytoskeleton: A) 3 main components B) main functions - ANSWER A) Actin, microtubules, & intermediate filaments B) Actin - direct movement Microtubules - transport Intermediate - support cell shape What are the main similarities and differences between the three components of the cytoskeleton? - ANSWER Main similarities: - charged ends & highway for proteins Main differences: - size & function Describe how the assembly of actin filaments is regulated. Includ...

What are the three main components of the cytoskeleton and what are their main functions? - Microfilaments (actin): sense the environment and direct movement Intermediate Filaments: maintain cell shape/structure, anchor organelles Microtubules: for transport What are the main similarities and differences between the three components of the cytoskeleton? - Similarities: -important for cytoskeletal structure -charged ends; form a highway for motor protein Differences: -size and function