Which type of tissue synthesizes red blood cells?

A. While cooked bacon and eggs can be safe if prepared properly, ordering breakfast foods does not inherently protect against foodborne illness. Undercooked or improperly handled eggs and meats can still carry pathogens like Salmonella.

B. Ordering a hamburger medium rare increases the risk of exposure to bacteria such as E. coli, which may survive if the meat is not cooked to a safe internal temperature (160°F / 71°C for ground beef).

C. Using antibacterial hand sanitizer before eating helps reduce the presence of harmful bacteria on your hands, which is a common route for foodborne illness. Hand hygiene is an effective preventive measure, especially when dining out, before handling food, or after touching potentially contaminated surfaces.

D. Eating chicken salad at room temperature is unsafe because perishable foods held in the “danger zone” (40°F–140°F) allow bacteria to multiply rapidly. Chicken salad should be kept refrigerated until consumption to prevent foodborne illness.

A. The gallbladder does not produce bile. Its primary function is to store and concentrate bile that the liver produces, releasing it into the small intestine through the common bile duct when fat-containing food enters the duodenum. While the gallbladder is essential for regulating bile flow, it does not synthesize it.

B. The liver is the accessory organ responsible for producing bile, a yellow-green fluid composed of bile salts, cholesterol, phospholipids, and waste products like bilirubin. Bile plays a critical role in emulsifying fats, breaking them into smaller droplets so pancreatic lipase can effectively digest them. Additionally, bile aids in the absorption of fat-soluble vitamins (A, D, E, and K) and facilitates the excretion of certain waste products, such as excess cholesterol and bilirubin, helping maintain metabolic balance. Bile is continuously produced by the liver and transported via the hepatic ducts to either the gallbladder for storage or directly to the duodenum for immediate digestive use.

C. The spleen is primarily involved in filtering the blood, recycling red blood cells, and supporting immune function. It has no role in bile production or fat digestion.

D. The pancreas produces digestive enzymes (such as amylase, lipase, and proteases) and hormones (including insulin and glucagon) but does not produce bile. It contributes to digestion by releasing enzymes into the small intestine, complementing bile’s function in fat digestion.