What is the ultrastructure of a eukaryotic cell?
Thus the eukaryotic cell is composed of two basic parts; the Cytoplasm and the Nucleus. THE NUCLEUS. This is the largest organelle of the cell often located in the central part of the cytoplasm and enclosed in a double-layered nuclear membrane. Its shape usually corresponds to the shape of the cell in which it is found …
What is the ultrastructure of a cell?
Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. Features of ultrastructure are used industrially to control material properties and promote biocompatibility.
What are the ultrastructure of the organelle?
The fine detail of the cell (which may be revealed by an electron microscope) is called the cell’s ultrastructure. Organelles perform different functions within a cell, and this is called the Division of Labour.
What is the evidence of Endosymbiotic theory?
Numerous lines of evidence exist, including that mitochondria and chloroplasts have their own circular DNA (prokaryotes also have circular DNA), mitochondria and chloroplasts have a double membrane (the inner membrane would have initially been the ingested prokaryote’s single membrane, and the outer membrane initially …
What is the ultrastructure of an animal cell?
The ultrastructure of cells The ultrastructure of a cell is its fine structure as revealed at high magnification. Animal, fungal and plant cells all contain structures called organelles . These are specialised for particular functions .
What is ultrastructure describe the ultrastructure of a prokaryotic cell?
Each prokaryotic cell is essentially a one envelop system that consists of protoplasm encased within cell envelope. The ultrastructure of a prokaryotic cell, particularly a typical bacterial cell consists of cell envelope, cytoplasm, nucleoid, plasmids and surface appendage.
What is ultrastructure of chloroplast?
The chloroplast has an inner and outer membrane with an empty intermediate space in between. Inside the chloroplast are stacks of thylakoids, called grana, as well as stroma, the dense fluid inside of the chloroplast. These thylakoids contain the chlorophyll that is necessary for the plant to go through photosynthesis.
What evidence exists to support the endosymbiotic origins of eukaryotic cells?
What evidence exists to support the endosymbiotic origins of eukaryotic cells? The endosymbiotic theory is based on mitochondria and chloroplasts of eukaryotes. Both structures have characteristics (such as their own DNA and the ability to self-replicate) of independent prokaryotes.
Which provides strong evidence for the endosymbiotic theory of eukaryotic origins?
The strongest evidence for the endosymbiotic origin of eukaryotic organelles is the similarity between extant prokaryotes and which of the following? Mitochondria and chloroplasts.
What is the ultrastructure of a prokaryotic cell?
What is ultrastructure of mitochondria?
Ultrastructure of Mitochondria: Mitochondria are bounded by an envelope consisting of two concentric membranes, the outer and inner membranes. The space between the two membranes is called inter-membrane space. A number of invaginations occur in the inner membrane; they are called cristae (Fig. 2.21).
What are the parts and functions of an eukaryotic cell?
Endoplasmic Reticulum. Smooth Endoplasmic Reticulum is particularly indulged in the synthesis and secretion of the lipid molecules.
Which are structures in eukaryotic cells?
Eukaryotic cells contain many membrane-bound organelles. An organelle is an organized and specialized structure within a living cell. The organelles include the nucleus, ribosomes , endoplasmic reticulum, Golgi apparatus, vacuoles, lysosomes, mitochondria, and, in plants, chloroplasts. What are the structures in a cell called?
What organelles are found in an eukaryotic cell?
Plasma Membrane. The plasma membrane is also termed as a Cell Membrane or Cytoplasmic Membrane.
What are the four types of eukaryotes?
The correct answer is this one: “Four are eukaryotes, and two are prokaryotes.”. The six kingdoms are composed of four are eukaryotes, and two are prokaryotes. The eukaryotes are the Plantae , Animalia , Protista and Fungi.