What produce proteins by following coded instructions that come from the nucleus of the cell?
Table of Contents
- 1 What produce proteins by following coded instructions that come from the nucleus of the cell?
- 2 What cell structure makes proteins using coded instructions?
- 3 What initiates protein synthesis in a cell by carrying specific instructions from the nucleus to the ribosomes?
- 4 Which organelle builds proteins using instructions from DNA?
- 5 Are proteins made in the nucleus?
- 6 What initiates protein synthesis in a cell?
What produce proteins by following coded instructions that come from the nucleus of the cell?
ribosome? -They produce proteins by following coded instructions that come from the nucleus. -Cells that are active in protein synthesis are often packed with ribosomes. ribosomes are found on its surface.
What cell structure makes proteins using coded instructions?
The nucleus
The nucleus contains nearly all the cell’s DNA and with it the coded instructions for making proteins and other important molecules.
Which structure makes proteins using coded instructions that come from the new?
Chapter 7 – The Cell and Cell Structures
| A | B |
|---|---|
| Ribosome | A small particle made up of RNA and protein that produce proteins following coded instructions that come from the nucleus |
| Endoplasmic Reticulum | An internal membrane system in which components of the cell membrane are assembled and some proteins are modified |
Where are the instructions for making proteins found?
The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Translation, the second step in getting from a gene to a protein, takes place in the cytoplasm.
What initiates protein synthesis in a cell by carrying specific instructions from the nucleus to the ribosomes?
Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts. ribosomal RNA (rRNA) molecules form the core of a cell’s ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein.
Which organelle builds proteins using instructions from DNA?
For creating proteins there is a special organelle in the cell called the ribosome. The ribosome is found in the cytoplasm of the cell. However, the genetic code on the DNA is contained in the nucleus, which is in a different part of the cell.
What structures make proteins?
Ribosomes
Ribosomes produce proteins and are made of two components—RNA and protein. Ribosomes are produced in the nucleolus, a structure located inside the nucleus. Some ribosomes float freely in the cytoplasm. They produce proteins that will be used by other cells.
What are the instructions for making proteins found in the nucleus?
Messenger RNA (mRNA) carries the instructions for making proteins. Like DNA, proteins are polymers: long chains assembled from prefab molecular units, which, in the case of proteins, are amino acids. A large molecular machine* called the ribosome translates the mRNA code and assembles the proteins.
Are proteins made in the nucleus?
The Nucleus & Its Structures Therefore, the nucleus houses the cell’s DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.
What initiates protein synthesis in a cell?
Protein synthesis is initiated universally with the amino acid methionine (24, 43). Of the two species of methionine tRNAs found in all organisms, the initiator is used for initiation whereas the elongator is used to insert methionine internally.
Which cell structure contains information needed for protein synthesis?
In eukaryotes, ribosomes get their orders for protein synthesis from the nucleus, where portions of DNA (genes) are transcribed to make messenger RNAs (mRNAs). An mRNA travels to the ribosome, which uses the information it contains to build a protein with a specific amino acid sequence.
What organelle uses instructions from the nucleus?
ribosomes
For example, in eukaryotes, messenger RNA, or mRNA, carries copies of genetic instructions from the nucleus to ribosomes in the cytoplasm. Inside these organelles, proteins are then synthesized during the process of translation.