What is the importance of ribosomes?
Ribosomes facilitate the synthesis of proteins in cells (i.e., translation) (see Figs. 1-1 and 1-3). Their function is to “translate” information encoded in mRNA into polypeptide chains of amino acids that make up proteins. There are two types of ribosomes, free and fixed (also known as membrane bound).
How ribosomes are formed?
Eukaryote ribosomes are produced and assembled in the nucleolus. Ribosomal proteins enter the nucleolus and combine with the four rRNA strands to create the two ribosomal subunits (one small and one large) that will make up the completed ribosome (see Figure 1).
Where is the cytoskeleton found?
The cytoskeleton is a complex, dynamic network of interlinking protein filaments present in the cytoplasm of all cells, including bacteria and archaea. It extends from the cell nucleus to the cell membrane and is composed of similar proteins in the various organisms.
What is another name for cytoskeleton?
Alternate Synonyms for “cytoskeleton”: structure; anatomical structure; complex body part; bodily structure; body structure.
What is a cytoskeleton simple definition?
: the network of protein filaments and microtubules in the cytoplasm that controls cell shape, maintains intracellular organization, and is involved in cell movement.
What does mitochondrion mean?
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell’s biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
What is Nucleus Simple?
1 : a usually round part of most cells that is enclosed in a double membrane, controls the activities of the cell, and contains the chromosomes. 2 : the central part of an atom that comprises nearly all of the atomic mass and that consists of protons and neutrons.
What cilia means?
Cilia: The fine hairlike projections from certain cells such as those in the respiratory tract that sweep in unison and help to sweep away fluids and particles. Some single-celled organisms use the rhythmical motion of cilia for locomotion.
What is an example of cilia?
In humans, for example, motile cilia are found on the respiratory epithelium lining the respiratory tract where they function in the mucociliary clearance of sweeping mucus and dirt out of the lungs. In female mammals, the beating of cilia in the Fallopian tubes moves the ovum from the ovary to the uterus.
What’s another word for cilia?
In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for cilia, like: cilium, centrosome, centrosphere, chloroplast, microbody, microcentrum, pili, plastid and ribosome.
Where do humans have cilia?
‘Motile’ (or moving) cilia are found in the lungs, respiratory tract and middle ear. These cilia have a rhythmic waving or beating motion. They work, for instance, to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation.