In the genetic disease cystic fibrosis, ducts in several organs become blocked by an excessive production of thick mucus. Although most cystic fibrosis deaths are due to lung damage, the disease also clogs bile ducts in the liver and pancreatic ducts in the pancreas. How does the thick mucus alter gastrointestinal function?

Which of these parts of the membrane large moecules pass through it ?

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.