CELL STRUCTURES AND FUNCTION
CELL STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It has two lipid bilayer.
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There are pores in the membrane.
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Ribosomal subunits can pass out of the nucleus.
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DNA molecules are transported out through the pores
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Detailed explanation-1: -Answer: (c) Its inner membrane bears ribosomes. This statement is not true.
Detailed explanation-2: -Messenger RNAs become bound to proteins that are loaded onto the RNA as transcription and splicing proceed. These proteins contain nuclear export signals that are recognized by export receptors that guide the RNA out of the nucleus through nuclear pore complexes.
Detailed explanation-3: -The nuclear envelope (NE) is a highly regulated membrane barrier that separates the nucleus from the cytoplasm in eukaryotic cells. It contains a large number of different proteins that have been implicated in chromatin organization and gene regulation.
Detailed explanation-4: -What is the volume and the surface area of the cell? Which of the following does not move through a nuclear pore?-proteins.