What cell structure/organelle would be especially common in
i)cells lining the respiratory passages?
ii)white blood cells that engulf and detroy invading bacteria
iii)enzyme (protein) secreting cells of the pancreas
mitochondria
those were three different questions. which one was the answer for?
ii) lysosome i believe
111) I think its ribosomes
i) The cell structure/organelle that would be especially common in cells lining the respiratory passages is the cilia. To understand this, we can start by considering the function of the cells lining the respiratory passages. These cells play a crucial role in protecting our respiratory system by removing dust particles and foreign substances that enter our airways. Cilia are tiny hair-like structures found on the surface of these cells. They act like miniature paddles, constantly beating and creating coordinated, wave-like motions. These motions help to move mucus and other trapped particles out of the respiratory system, preventing them from entering the lungs.
ii) The cell structure/organelle that would be especially common in white blood cells that engulf and destroy invading bacteria is the lysosome. White blood cells, also known as leukocytes, are part of our immune system and play a vital role in defending our body against pathogens, such as bacteria. To effectively eliminate bacteria, white blood cells utilize a process called phagocytosis. During phagocytosis, the bacteria are engulfed and enclosed in a membrane-bound compartment called a phagosome. Lysosomes, which contain powerful enzymes, fuse with the phagosome to form a phagolysosome. The enzymes within the lysosomes then digest and destroy the bacteria, thereby eliminating the infection.
iii) The cell structure/organelle that would be especially common in the enzyme-secreting cells of the pancreas is the rough endoplasmic reticulum (RER) and Golgi apparatus. Enzyme-secreting cells, called acinar cells, are abundantly found in the pancreas. These cells produce and secrete various digestive enzymes, such as amylase, lipase, and protease. The RER in these cells is responsible for the synthesis of proteins, including enzymes. Proteins are initially made on the ribosomes attached to the RER, where they are then folded and processed. The Golgi apparatus is responsible for modifying, packaging, and transporting these enzymes to their final destination, such as the pancreatic ducts or the small intestine, where they aid in digestion.