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DNA indeed never leaves the nucleus. Instead, activated genes get transcribed by RNA polymerase, producing an RNA copy of the gene. The RNA gets processed (capped, spliced) and becomes a mature messenger RNA (mRNA).
The mRNA leaves the nucleus and sooner or later attaches to a ribosome. This will translate the information encoded in it into a protein.
What else can I help you with?
Why if the nucleus of a cell was removed the cell wouldn't be able to make any proteins?
Becuase they don't feel like making any protiens without their nucleus.
Does nucleus contains salt molecules?
No, the nucleus of a cell does not contain salt molecules. The nucleus primarily contains genetic material (DNA), proteins, and a nucleolus, which is involved in ribosome production. While the surrounding cytoplasm may contain various ions and salts, the nucleus itself is mainly composed of nucleic acids and proteins, without significant amounts of salt.
What molecule carries a copy of the code from out of the nucleus?
Molecules of Ribonucleic Acid (RNA) carry the instructions for assembling proteins out of the cell nucleus. Without this type of molecule, the cell cannot survive.
What functions would a cell be unable to carry out without a nucleus?
Without a nucleus, a cell would be unable to control its growth and reproduction, as the nucleus contains the cell's genetic material and orchestrates these processes. Additionally, the cell would lack the ability to make important proteins and enzymes needed for various functions, as protein synthesis occurs in the nucleus. Communication with other cells and maintaining internal balance would also be compromised without the nucleus regulating gene expression.
Which organelle directs a cell's activities?
It is important for an organelle to direct a cell's activities because without an organelle directing then the other organelles don't know what to do. This would be like a person trying to survive without a brain.
Why if the nucleus of a cell was removed the cell wouldn't be able to make any proteins?
Becuase they don't feel like making any protiens without their nucleus.
Why are red blood cells unable to synthasize proteins?
Mature blood cells do not have a nucleus. Without this genetic material, the cells are unable to synthesize proteins.
What can you infer about large molecular-weight proteins that cannot be transported into the nucleus?
Large molecular-weight proteins that cannot be transported into the nucleus likely do not contain a nuclear localization signal (NLS) that is recognized by importins. These proteins may function primarily in the cytoplasm or at the cell membrane, where they carry out their specific roles without the need to access the nucleus.
Why is nucleolus important to the cell?
The nucleolus is the part of the nucleus where ribosomal RNA (rRNA) is synthesized and ribosome subunits are assembled.The chromosomes fold in such a way that most of the genes for rRNA are in the nucleolus. The proteins found in ribosomes are synthesized in the cytoplasm, then enter the nucleus through pores in the nuclear membrane.Within the nucleolus, the two subunits of ribosomes, each consisting of rRNA and many proteins, are assembled. These subunits leave the nucleus through pores in the membrane, and are put together when translation begins in the cytoplasm.
What molecule carries a copy of the code from out of the nucleus?
Molecules of Ribonucleic Acid (RNA) carry the instructions for assembling proteins out of the cell nucleus. Without this type of molecule, the cell cannot survive.
What functions would a cell be unable to carry out without a nucleus?
Without a nucleus, a cell would be unable to control its growth and reproduction, as the nucleus contains the cell's genetic material and orchestrates these processes. Additionally, the cell would lack the ability to make important proteins and enzymes needed for various functions, as protein synthesis occurs in the nucleus. Communication with other cells and maintaining internal balance would also be compromised without the nucleus regulating gene expression.
Why are proteins made in the cytoplasm and not in the nucleus?
Ribosomes in the Cytoplasm are identical to ribosomes on the ER, correctly called the Rough Endoplasmic Reticulum (RER). Smooth Endoplasmic Reticulum (SER) extends throughout the Cytoplasm - without Ribosomes attached.
What is a single organism without a nucleus?
it is nucleus
Do large proteins containing a nuclear localization signal bind to the nuclear pore and enter the nucleus without any expenditure of energy?
No, proteins with a nuclear localization signal require energy to actively transport through the nuclear pore complex into the nucleus. They are not able to enter the nucleus passively. The binding and translocation through the nuclear pore are facilitated by specific transport receptors and require energy in the form of GTP hydrolysis.
Which organelle directs a cell's activities?
It is important for an organelle to direct a cell's activities because without an organelle directing then the other organelles don't know what to do. This would be like a person trying to survive without a brain.
What would happen to a cell if it didn't have a nucleolus?
There is an entire kingdom of cells without a nucleus. This is the kingdom Monera or bacteria. Humans are just part of a group of animals that have a nucleus. In the cells of other living things, the nucleus controls the rest of the cell and hold the genetic code DNA. Well yeah, but those are called prokaryotic cells, eukaryotic cells have every organelle in a cell.
What would happen if there was no nuclear pores?
Without nuclear pores, molecules such as RNA and proteins could not move in and out of the nucleus, disrupting essential cellular processes. This would hinder communication between the nucleus and the rest of the cell, leading to cell dysfunction and potentially cell death.
