What is the name for a membrane enclosed organelle that contains?
Table of Contents
- 1 What is the name for a membrane enclosed organelle that contains?
- 2 Which cell organelle shows continuity with external plasma membrane?
- 3 What is enclosed by the plasma membrane?
- 4 What is a membrane-enclosed nucleus?
- 5 Which organelle plays a role in intracellular digestion?
- 6 Which of the following membrane enclosed organelles contains several oxidases that are involved in?
- 7 What is a cell containing a membrane enclosed nucleus and organelles?
- 8 What is the structure and composition of the cell membrane?
- 9 What is the thickness of the plasma membrane?
- 10 What happens when the vesicle membrane fuses with the cell membrane?
What is the name for a membrane enclosed organelle that contains?
Nucleus
Main functions
| Double-membraned organelles | Characteristics |
|---|---|
| Nucleus | The large, membrane-bounded organelle that contains the genetic material, in the form of multiple linear DNA molecules organized into structures called chromosomes |
| Mitochondrion | A spherical or rod-shaped organelle with its own genome |
Which cell organelle shows continuity with external plasma membrane?
The endoplasmic reticulum (ER) is a large, continuous membrane-bound organelle comprised of functionally and structurally distinct domains including the nuclear envelope, peripheral tubular ER, peripheral cisternae, and numerous membrane contact sites at the plasma membrane, mitochondria, Golgi, endosomes, and …
Which of the following membrane enclosed organelles is the site of synthesis of membrane proteins?
the ER
In addition to its activities in the processing of secreted and membrane proteins, the ER is the major site at which membrane lipids are synthesized in eukaryotic cells.
What is enclosed by the plasma membrane?
Enclosed by this cell membrane (also known as the plasma membrane) are the cell’s constituents, often large, water-soluble, highly charged molecules such as proteins, nucleic acids, carbohydrates, and substances involved in cellular metabolism.
What is a membrane-enclosed nucleus?
The nuclear envelope is a double membrane of the nucleus that encloses the genetic material. It separates the contents of the nucleus from the cytoplasm. Many tiny holes called nuclear pores are found in the nuclear envelope.
Which two cellular components are enclosed by a membrane?
The main types of membrane-enclosed organelles present in all eucaryotic cells are the endoplasmic reticulum, Golgi apparatus, nucleus, mitochondria, lysosomes, endosomes, and peroxisomes; plant cells also contain plastids, such as chloroplasts.
Which organelle plays a role in intracellular digestion?
The primary sites of intracellular digestion are organelles known as the lysosomes, which are membrane-bounded compartments containing a variety of hydrolytic enzymes.
Which of the following membrane enclosed organelles contains several oxidases that are involved in?
The answer is E. Peroxisomes are so named because the reactions that occur in this organelle produce hydrogen peroxide.
What contains a membrane enclosed nucleus and organelles?
A eukaryotic cell contains a membrane-enclosed nucleus and membrane-enclosed organelles.
What is a cell containing a membrane enclosed nucleus and organelles?
Eukaryotic cells contain a membrane-bound nucleus and numerous membrane-enclosed organelles (e.g., mitochondria, lysosomes, Golgi apparatus) not found in prokaryotes. Animals, plants, fungi, and protists are all eukaryotes.
What is the structure and composition of the cell membrane?
Structure and Composition of the Cell Membrane The cell membrane is an extremely pliable structure composed primarily of two layers of phospholipids (a “bilayer”). Cholesterol and various proteins are also embedded within the membrane giving the membrane a variety of functions described below.
What is the function of the plasma membrane in a cell?
It loosely serves as enzymes which shape the cell. Plasma membrane is selectively permeable to organic molecules and ions, it regulates the movement of particles in and out of organelles and cells. This membrane is composed of a phospholipid bilayer implanted with proteins.
What is the thickness of the plasma membrane?
Thickness of the membrane is in the range 5-10nm. The proportion of constituency of plasma membrane i.e., the carbohydrates, lipids and proteins vary from cell to cell. For instance, the inner membrane of the mitochondria comprises 24\% lipid and 76\% protein, in myelin, 76\% lipid is found and 18\% protein.
What happens when the vesicle membrane fuses with the cell membrane?
When the vesicle membrane fuses with the cell membrane, the vesicle releases its contents into the interstitial fluid. The vesicle membrane then becomes part of the cell membrane.