9. With regards to the nucleus, which statement is TRUE? A B. DNA is wrapped aro
ID: 202849 • Letter: 9
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9. With regards to the nucleus, which statement is TRUE? A B. DNA is wrapped around proteins within the nucleus to allow for compaction C. Ribosomes are translated within a region of the nucleus referred to as the D. The shape of the nucleus is maintained by the microfilaments of the nuclear E. There is more than one true statement above. The nuclear membrane is a highly selective barrier (shape, size and charge), regulating what enters and exits the nucleus through nuclear pore complexes of the DNA, thereby allowing it to fit within the nucleus nucleolus lamina 10. Which statement regarding microtubules is FALSE? A Microtubules can form tracts that allow motor proteins to walk along them in BMicrotubules are made up of a protein called actin and can help propel cells C. Microtubules can polymerize and depolymerize fairly quickly, allowing for a D. Microtubules can ald in the movement of vesicles towards the plasma E. There are no false statements above. order to carry vesices from the Golgi to the lysosome. via cilia or flagella. cell to rapidly build and deploy cargo to various areas membrane for exocytosis. 11. A Kinesin protein functions within a cell by A Walking along actin filaments only in one direction while carrying cargo B. Using an ATP molecule for each "step" it makes. C. Forming the cleavage furrow during mitosis. D. Being extremely rigid and contributing to the cells structure and its ability to resist tension or compression. E Moving cargo between the ER and Golgi by a process called facilitated diffusionExplanation / Answer
Ans9.C Ribosomes are translated within a region of the nucleus referred to as the nucleolus. Nucleolus is invoved in assembly of ribosomes.
Ans10.B microtubules are made up of a protein called actin and can propel cells via cilia or flagella. microtubules are made up of tubulin and microfilaments.
Ans11.B Using an ATP molecule for each "step" it makes. Kinesins move along microtubule filaments, and they are powered by the hydrolysis of ATP.
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