Cell Bio

Cell bio exam 2| 162 questions| with complete solutions Last document update:   ago

What are the primary functions of the 5' cap and poly A tail? correct answer Increase the stability of the mRNA;Facilitate mRNA export from the nucleus to the cytoplasm; What are nuclear pore complexes (NPCs) and what do they do? correct answer provide access to the nucleus and regulate the transport of proteins and RNA across the nuclear envelope. What is required for an mRNA to be considered export ready? correct answer must be bound to a specific set of proteins: Poly-A-Binding Protei...

Cell bio exam 4| 205 questions| with complete solutions Last document update:   ago

Define the cytoskeleton. What are the three structural elements that constitute the cytoskeleton? correct answer A network of filaments or tubes composed of protein subunits and associated proteins. Structural elements are intermediate filaments, microtubules, actin filaments, and accessory proteins. What are the primary functions of the cytoskeleton? correct answer cell motility (crawling, flgella, cilia) intracellular motility, cytoplasmic order, cell and tissue shape and support. cytoskele...