Table of Contents
- 1 What is responsible for synthesizing proteins?
- 2 What organelle transports proteins around the cell?
- 3 What is an example of protein synthesis?
- 4 Which organelle is responsible for the packaging and export of proteins?
- 5 What are the types of transport proteins?
- 6 What are the organelles found only in plant cells?
- 7 How are plant cells different from other eukaryotic cells?
What is responsible for synthesizing proteins?
The ribosome is responsible for translating encoded messages from messenger RNA molecules to synthesize proteins from amino acids. The ribosome translates each codon, or set of three nucleotides, of the mRNA template and matches it with the appropriate amino acid in a process called translation.
What organelle transports proteins around the cell?
Endoplasmic Reticulum
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 are the steps of protein synthesis?
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination.
Which organelle is responsible for synthesizing proteins quizlet?
Ribosomes are Responsible for Protein Synthesis and are often Associated with the Endoplasmic Reticulum 3.5.
What is an example of protein synthesis?
When protein synthesis is taking place, enzymes link tRNA molecules to amino acids in a highly specific manner. For example, tRNA molecule X will link only to amino acid X; tRNA molecule Y will link only to amino acid Y. Messenger RNA is synthesized in the nucleus using the DNA molecules.
Which organelle is responsible for the packaging and export of proteins?
The Golgi apparatus is responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations.
Which organelle is responsible for ATP?
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 are examples of transport proteins?
The most famous example of a primary active transport protein is the sodium-potassium pump. It is this pump that creates the ion gradient that allows neurons to fire. The sodium-potassium pump begins with its sodium binding sites facing the inside of the cell. These sites attract sodium ions and hold onto them.
What are the types of transport proteins?
A transport protein completely spans the membrane, and allows certain molecules or ions to diffuse across the membrane. Channel proteins, gated channel proteins, and carrier proteins are three types of transport proteins that are involved in facilitated diffusion.
What are the organelles found only in plant cells?
The organelles found only in plant cells include- chloroplast, cell wall, plastids, and a large central vacuole. The chloroplasts contain a green pigment chlorophyll that is responsible for the process of photosynthesis. What is the composition of a plant cell wall?
Which is a function of the chloroplasts of a plant?
Photosynthesis is the major function performed by plant cells. Photosynthesis occurs in the chloroplasts of the plant cell. It is the process of preparing food by the plants, by utilizing sunlight, carbon dioxide and water. Energy is produced in the form of ATP in the process.
Which is the smallest membrane bound organelles in the cell?
They are the smallest membrane-bound organelles which comprise RNA and protein. They are the sites for protein synthesis, hence, also referred to as the protein factories of the cell.
How are plant cells different from other eukaryotic cells?
A plant cell is a eukaryotic cell that contains a true nucleus and certain organelles to perform specific functions. However, some of the organelles present in plant cells are different from other eukaryotic cells. What are the different types of plant cells?