Animalscaretips
endoplasmic reticulum – a cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
- What helps transport proteins and other materials from one part of a cell to another?
- What receives proteins and other newly formed materials and distributes them?
- What cell is a maze of passageways?
- What is protein traffic?
- How are membrane proteins synthesized?
- How is a protein made and transported out of the cell?
- Which organelle combines lipids and proteins and transports them out of the cell?
- Can be rough or smooth passageways to carry proteins and other materials around the cell?
- How do proteins and other materials from the endoplasmic reticulum get to the Golgi apparatus?
- What initiates protein synthesis in a cell by carrying specific instructions from the nucleus to the ribosomes?
- What does Golgi apparatus do?
- What does the lysosome do?
What helps transport proteins and other materials from one part of a cell to another?
The Endoplasmic Reticulum or ER is an extensive system of internal membranes that move proteins and other substances through the cell. The part of the ER with attached ribosomes is called the rough ER. The rough ER helps transport proteins that are made by the attached ribosomes.
What receives proteins and other newly formed materials and distributes them?
golgi bodies – a structure in a cell that receives proteins and other newly formed materials from the endoplasmic reticulum, packages them, and distributes them to other parts of the cell.
What cell is a maze of passageways?
endoplasmic reticulum: A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
What is protein traffic?
Protein trafficking is the transport of proteins to their correct subcellular compartments or to the extracellular space (“secretory pathway”). ... Protein quality control comprize all cellular mechanisms, monitoring protein folding and detecting aberrant forms.
How are membrane proteins synthesized?
Membrane proteins are synthesized on the ribosomal machinery of cells and then inserted into membranes. In eukaryotic cells, proteins are either first inserted co-translationally into the membrane of the endoplasmic reticulum, or post-translationally into membranes of mitochondria, the nucleus, or peroxisomes.
How is a protein made and transported out of the cell?
The Golgi processes proteins made by the endoplasmic reticulum (ER) before sending them out to the cell. ... Proteins must make their way through the stack of intervening cisternae and along the way become modified and packaged for transport to various locations within the cell (Figure 1).
Which organelle combines lipids and proteins and transports them out of the cell?
The endoplasmic reticulum (ER) is involved in the synthesis of lipids and synthesis and transport of proteins. The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.
Can be rough or smooth passageways to carry proteins and other materials around the cell?
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
How do proteins and other materials from the endoplasmic reticulum get to the Golgi apparatus?
It takes in products from the Rough Endoplasmic Reticulum (RER) in what is called 'bulk flow' (the equivalent of a bulk delivery to the supermarket). These chemical products are transported to the Golgi apparatus in sealed droplets or sacs called vesicles and move to a 'deliveries only' part of the Golgi apparatus.
What initiates protein synthesis in a cell by carrying specific instructions from the nucleus to the ribosomes?
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 does Golgi apparatus do?
A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
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.
