Question: Where are proteins synthesised inside the cell?
- Nucleus
- Mitochondria
- Cytoplasm
- Rough endoplasmic reticulum
Answer: Rough endoplasmic reticulum
Where Are Proteins Synthesised Inside the Cell? Solution:
Cells primarily synthesize proteins inside the ribosomes. You can find these ribosomes either floating freely in the cytoplasm or attached to the endoplasmic reticulum, forming what we know as the rough ER. The process of protein synthesis begins when DNA transcribes messenger RNA (mRNA), which then travels to the ribosomes. Here, the ribosomes read the mRNA sequence and translate it into a specific amino acid chain, ultimately folding into functional proteins. This intricate process is essential for cell function, growth, and repair, making the ribosomes crucial sites for protein synthesis in the cell.
Proteins are synthesised in the rough endoplasmic reticulum (RER). Ribosomes cover the network of tubules known as the RER. Ribosomes are the organelles that are responsible for protein synthesis. The ribosomes on the RER read the instructions for protein synthesis from messenger RNA (mRNA) molecules. The ribosomes then assemble the amino acids that make up the protein.
Why Ice Floats on Water?
Ice floats on water due to its unique molecular structure. Water is most dense at 4 degrees Celsius, causing the molecules to pack closely together. However, as water freezes, its molecules form a crystalline structure that takes up more space, making ice less dense than liquid water. This lower density allows ice to float. This phenomenon is crucial for aquatic life; when lakes freeze, the ice insulates the water below, providing a habitat for fish and other organisms. Understanding why ice floats on water helps explain many natural processes, highlighting the importance of water in our ecosystem.
