Which of the following events would promote nuclear envelope restoration? Decreased GTP hydrolysis by tubulin heterodimers O Cytokinesis Increased GTP hydrolysis by tubulin heterodimers Increased phosphatase activity Increased ATP hydrolysis by actin
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- Which is not true during the dissolution of nuclear membrane A) lamins dissociate into free lamin dimers B)fragmentation of membrane to vesicles C) inactivation of Cdc2 kinase protein resulting to chromosome condensation D)nuclear pore complex dissociatesWhich of the following processes is involved in the bulktransport of molecules out of the cell?a. phagocytosisb. pinocytosisc. receptor-mediated endocytosisd. exocytosise. None of these are correct.Which is the definition of 'retrograde' with respect to membrane trafficking? movement from the endosome to the lysosome movement from the ER to the Golgi to either the plasma membrane or the endosome/lysosome movement from the cytoplasm to the nucleus movement from the Golgi to the ER
- Which of the following proteins would least likely promote arrest of cell division or apoptosis? Select one: a. p21 b. superoxide c. retinoblastoma d. p53 e. cyclinWhich of the following is/are required in order for an endosome to be transported from the plasma membrane to the Golgi complex? (Select all that apply!) Dynein Kinesin ATP Microtubules Actin GTP MyosinIn the plasma membrane, proteins carry out the following tasnks except ONE: 1. ALL other are carried out by proteins 2. catabolic reaction (digestion of complex molecules into simpler one) 3. gather information from surroundings/neighboring cells 4. shuttles molecules across the membrane 4. Binding to other cells via cytoskelleton
- Which statement is not true of endoplasmic reticulum? There is smooth and rough endoplasmic reticulum It is found in all living cells. Rough ER has ribosomoes bound to it. Proteins are transported and modified within it Proteins cam be targeted for ER transportationList three types of movment displayed by molecules in the plasma membrane. Which type of molecule is capable of each movement.Being an integral membrane protein is critical to the function of which of the following protein complexes? Select all that apply. There is a minimum of one and a maximum of eight correct answers. Dynein Tubulin Integrin Complex III of the electron transport chain Collagen Aquaporin
- A cell with DNA damage that could not be repaired will undergo apoptosis. Which apoptotic pathway would be activated in this particular cell?A peripheral protein, which is not integral to the cell membrane, is also called: a multi-pass transmembrane protein (like band 3.0 protein) a single-pass transmembrane protein (like glycophorin A) a monolayer-associated protein (like the COX-1 protein) a protein-attached protein (like cytochrome c) a lipid-linked protein (like the Ras protein)Vesicles forming at the plasma membrane, or at the trans face of the Golgi, and destined only to fuse with endosomes and lysosomes, are generally not associated with which of the following proteins? dynamin proteins cargo receptor proteins clathrin proteins collagen proteins adaptin proteins