Are artificial membranes permeable or impermeable? An artificial membrane composed of pure phospholipid or of phospholipid and cholesterol is permeable to gases, such as O2 and CO2, and small, uncharged polar molecules, such as urea and ethanol (Figure 15-1). Such molecules also can cross cellular membranes by passive diffusion unaided by transport proteins. Is dialysis […]
What precaution must be taken in regard to spills on a painted surface with a phosphate ester fluid such as Skydrol?
What precaution must be taken in regard to spills on a painted surface with a phosphate ester fluid such as Skydrol? Skydrol has a 5-year shelf life from the date of manufacture. Skydrol fluids are extremely irritating to human tissue. Gloves and goggles are recommended safety equipment when servicing Skydrol systems. If the fluid gets […]
What should I do if my dogs eyelid is swollen?
What should I do if my dogs eyelid is swollen? In cases of inflammation due to a fungus, bacteria, or parasite, your vet will prescribe medication. These may include eye drops or a topical ointment to help cure the infection, treat the inflammation, and reduce your dog’s pain and discomfort. What can cause a dog’s […]
How do you know if your hamster is allergic to something?
How do you know if your hamster is allergic to something? Symptoms Sneezing. Runny nose. Itchy, red or watery eyes. Nasal congestion. Itchy nose, roof of mouth or throat. Postnasal drip. Cough. Facial pressure and pain. Can hamsters have seasonal allergies? Hamster’s Allergies and Sneezing Some hamsters may be allergic to the fabric softener you […]
Why do I want to eat so much on my period?
Why do I want to eat so much on my period? The levels of the hormones estrogen and progesterone go up and down during the different phases of your period, which affects your hunger levels. The rise in estrogen during the follicular phase can leave you feeling moody, cranky, and sad. Therefore, your body craves […]
How did Hong Kong end up in the British Empire?
How did Hong Kong end up in the British Empire? The Qing dynasty ceded Hong Kong to the British Empire in 1842 through the treaty of Nanjing, ending the First Opium War. Hong Kong then became a British crown colony. Britain also won the Second Opium War, forcing the Qing Empire to cede Kowloon in […]
How long does a baby humpback whale stay with its mother?
How long does a baby humpback whale stay with its mother? Calf in tow Belugas remain near their mothers for three years, sometimes even longer. During this period, mother and calf develop a strong bond, which is essential for the offspring’s survival. The best known maternal care in whales is where the female places the […]
How do I start a new life somewhere else with no money?
How much is a bus ticket from Mississippi to Texas?
How much is a bus ticket from Mississippi to Texas? Information on this bus route Daily Buses 2 Minimum Price $100 Average Ticket Price $144 Minimum Trip Duration 9h Average Bus Trip Duration 9h10m Is there a Greyhound bus station in Columbus Mississippi? Increased security is coming to Columbus’ Greyhound bus station Downtown. The increase […]
Who was the leader of Jamestown colony?
Who was the leader of Jamestown colony? Captain John Smith Who took control of Jamestown? English adventurer John Smith is elected council president of Jamestown, Virginia—the first permanent English settlement in North America. Smith, a colorful figure, had won popularity in the colony because of his organizational abilities and effectiveness in dealing with local Native […]