What is needed for protein synthesis?
What is needed for protein synthesis?
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 …
What is responsible for protein synthesis in a cell?
Ribosomes
What organelle is responsible for the production of proteins?
endoplasmic reticulum
What organelle is responsible for releasing energy?
Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration.
What are ribosomes and their functions?
Ribosomes are minute particles consisting of RNA and associated proteins that function to synthesize proteins. Proteins are needed for many cellular functions such as repairing damage or directing chemical processes. Ribosomes can be found floating within the cytoplasm or attached to the endoplasmic reticulum.
What are ribosomes in one word?
ribosome. [ rī′bə-sōm′ ] A sphere-shaped structure within the cytoplasm of a cell that is composed of RNA and protein and is the site of protein synthesis. Ribosomes are free in the cytoplasm and often attached to the membrane of the endoplasmic reticulum. Ribosomes exist in both eukaryotic and prokaryotic cells.
What is a endoplasmic reticulum simple definition?
Endoplasmic reticulum (ER), in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins .
What does reticulum mean?
1 : the second compartment of the stomach of a ruminant in which folds of the mucous membrane form hexagonal cells — compare abomasum, omasum, rumen. 2 : a reticulate structure : network.
What does nucleolus mean?
: a spherical body of the nucleus of most eukaryotes that becomes enlarged during protein synthesis, is associated with a nucleolus organizer, and contains the DNA templates for ribosomal RNA — see cell illustration. Other Words from nucleolus Example Sentences Learn More About nucleolus.
What is nucleolus very short answer?
The nucleolus is the distinct structure present in the nucleus of eukaryotic cells. Primarily, it participates in assembling the ribosomes, alteration of transfer RNA and sensing cellular stress. The nucleolus is composed of RNA and proteins, which form around specific chromosomal regions.
What is an example of nucleolus?
It is a double-membraned organelle containing nuclear structures, e.g. chromatin and nuclear bodies. Nucleolus, the round granular structure within the nucleus of a cell, composed of proteins, DNA, and RNA, and functions primarily for the creation of ribosomes, is one of the most well-known nuclear structures.
What is the origin of nucleolus?
The material from which the nucleolus is formed is derived from the fat-body; it diffuses into the ovarioles and ultimately into the cytoplasm and the nuclei of the oocytes. There it coalesces to form the single large nucleolus of the Limulus oocyte and the three or four smaller ones of the Tenebrio germ-cell.
Who discovered the nucleolus?
Felice Fontana