Nros 310 - Study guides, Class notes & Summaries

NROS 310 Final Exam 2023 with 100% correct answers

NROS 310 Final Exam 2023 with 100% correct answers

NROS 310 Final Exam 2023 with 100% correct answers

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 hydroly...

Describe the signals and mechanisms required for import into the peroxisome. - Answer -peroxisomal targeting sequence -peroxisomal import machinery (Pex5 receptor- first thing that binds on and recognizes signal sequence) Describe the functions of the SRP (signal recognition particle). - Answer -Recognizes hydrophobic amino acid sequence to stop translation, brings sequence to ER. -Binds to the ribosome with an ER signal sequence and stops translation of the protein, then docks the rib...

NROS 310 Final Exam 2023 with 100% correct answers

What are the main organs affected by cystic fibrosis? - Answer Lungs, any organ that has epithelial cells, mucus, and secretory system which requires regulation of that mucus Describe the main function of the CFTR protein and how it is regulated. - Answer responsible for regulating the proper flow of chloride and sodium (a component of salt) in and out of the cell membranes in the lungs and other organs. It is regulated by its cytosolic domains: two nucleotide binding domains (NBDs) and a...

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 hydroly...

NROS 310 Final Exam 2023 with 100% correct answers

What are the main organs affected by cystic fibrosis? - Answer Lungs, any organ that has epithelial cells, mucus, and secretory system which requires regulation of that mucus Describe the main function of the CFTR protein and how it is regulated. - Answer responsible for regulating the proper flow of chloride and sodium (a component of salt) in and out of the cell membranes in the lungs and other organs. It is regulated by its cytosolic domains: two nucleotide binding domains (NBDs) and a...