Table of Contents
- 1 What are the flattened sacs that receive proteins made by the ER and transport them through the cell?
- 2 What are the flattened sacs that make up the endoplasmic reticulum?
- 3 What is the function of smooth ER?
- 4 What does the lysosome do?
- 5 Which of the following organelles are involved in making transporting and processing?
- 6 Which of the following organelles are involved in transport of protein across cell?
- 7 What is the shape of the endoplasmic reticulum?
- 8 What is the function of endoplasmic reticulum and mitochondria?
What are the flattened sacs that receive proteins made by the ER and transport them through the cell?
These flattened, hollow folds and sacs are called cisternae. The ER has two major functions: Transport: Molecules, such as proteins, can move from place to place inside the ER, much like on an intracellular highway. Synthesis: Ribosomes that are attached to ER, similar to unattached ribosomes, make proteins.
What are the flattened sacs that make up the endoplasmic reticulum?
The endoplasmic reticulum is found in most eukaryotic cells and forms an interconnected network of flattened, membrane-enclosed sacs known as cisternae (in the RER), and tubular structures in the SER.
What cell parts are sacs that are responsible for transporting substances in and out of the cell?
The Golgi apparatus is a series of flattened sacs that sort and package cellular materials. The Golgi apparatus has a cis face on the ER side and a trans face opposite of the ER. The trans face secretes the materials into vesicles, which then fuse with the cell membrane for release from the cell.
What is the structure that carries products from the rough endoplasmic reticulum to the Golgi apparatus?
If the modified proteins are not destined to stay in the ER, they will be packaged into vesicles, or small spheres of membrane that are used for transport, and shipped to the Golgi apparatus. The rough ER also makes phospholipids for other cellular membranes, which are transported when the vesicle forms.
What is the function of smooth ER?
The smooth endoplasmic reticulum functions in many metabolic processes. It synthesizes lipids, phospholipids as in plasma membranes, and steroids. Cells that secrete these products, such as cells of the testes, ovaries, and skin oil glands, have an excess of smooth endoplasmic reticulum.
What does the lysosome do?
Lysosomes break down macromolecules into their constituent parts, which are then recycled. These membrane-bound organelles contain a variety of enzymes called hydrolases that can digest proteins, nucleic acids, lipids, and complex sugars. The lumen of a lysosome is more acidic than the cytoplasm.
Is a series of flattened membrane sacs in which new proteins and lipids are processed?
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 smooth ER do?
The smooth endoplasmic reticulum functions in many metabolic processes. It synthesizes lipids, phospholipids as in plasma membranes, and steroids. The smooth endoplasmic reticulum also carries out the metabolism of carbohydrates and steroids.
Which of the following organelles are involved in making transporting and processing?
The endoplasmic reticulum, Golgi apparatus, and lysosomes are thus distinguished from other cytoplasmic organelles by their common involvement in protein processing and connection by vesicular transport.
Which of the following organelles are involved in transport of protein across cell?
The Golgi apparatus is the central organelle mediating protein and lipid transport within the eukaryotic cell.
What organelles are involved in the transport of materials?
Function Of Cell Organelles
|endoplasmic reticulum||serves as a pathway for the transport of materials throughout the cell|
|nucleus||serves as the control center for cell metabolism and reproduction|
|ribosomes||site of protein synthesis|
|mitochondria||power house of cell, releases energy into the cell|
What are rough and smooth endoplasmic reticulum?
Both rough ER and smooth ER have the same types of membranes but they have different shapes. Rough ER looks like sheets or disks of bumpy membranes while smooth ER looks more like tubes. Rough ER is called rough because it has ribosomes attached to its surface. Smooth ER (SER) acts as a storage organelle.
What is the shape of the endoplasmic reticulum?
The structure of endoplasmic reticulum is shaped like a sac. Since ER is of two types, each has its own distinguishing features: Rough Endoplasmic Reticulum Structure The rough endoplasmic reticulum is named so because of its appearance.
What is the function of endoplasmic reticulum and mitochondria?
Smooth Endoplasmic Reticulum – They are the storage organelle, associated with the production of lipids, steroids, and also responsible for detoxifying the cell. Mitochondria are called the powerhouses of the cell as they produce energy-rich molecules for the cell.
What is an interconnecting membranous network of the cell composed of?
An interconnecting membranous network of the cell composed of vesicles, flattened sacs and tubules is : View solution The rough endoplasmic reticulum is specially well developed in cell actively engaged in
Which of the following is a double membrane bound organelle?
Double membrane-bound organelles: Nucleus, mitochondria and chloroplast are double membrane-bound organelles present only in a eukaryotic cell. Let us learn more in detail about the different cell organelles in brief. List of Cell Organelles and their Functions