Normally, when blood glucose level increases (e.g. after a m…
Normally, when blood glucose level increases (e.g. after a meal), the islet cells in the pancreas secrete insulin. When insulin molecules bind to insulin receptors on the surface of a muscle cell, the receptors become activated, initiating a signaling pathway which eventually results in the increase in the number of passive glucose transporters on the muscle cell surface thus increases the uptake of glucose. Which one of the following conditions will likely result in diabetes?
Read DetailsAfter isolating the rough endoplasmic reticulum from the res…
After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAs attached to it. Indicate whether you expect these RNAs to encode the following types of proteins (Indicate Yes or No for each type of the proteins). [answer1] proteins to be inserted into the mitochondrial membranes [answer2] proteins to be inserted into the plasma membrane [answer3] proteins to be delivered to the golgi apparatus [answer4] proteins to be delivered to extracellular space
Read DetailsIndicate whether the following statements are true or false….
Indicate whether the following statements are true or false. [answer1] Reovirus enters into the target cell by first being captured as a “cargo” into a endocytic vesicle. [answer2] Reovirus is activated when an outer shell viral protein is attacked by an intestinal protease. [answer3] The nuclear envelop is thought to have evolved by invagination and pinching off from the plasma membrane of an ancient archaeon. [answer4] An antibiotic that inhibits protein synthesis of a bacterium will likely inhibit protein synthesis in mitochondria. [answer5] Most mitochondrial proteins are made within mitochondria. [answer6] The electrical potential of a charged molecule is zero if the membrane potential is zero.
Read DetailsIndicate for each of the following statements whether it is…
Indicate for each of the following statements whether it is likely to be true or false. [answer1] The mannose-6-phosphate tag on the oligosaccharide chain marks a lysosomal enzyme for delivery to the lysosome. [answer2] The low pH in the lysosomal lumen facilitates the unloading of the lysosomal enzymes from the M6P receptor. [answer3] ER is involved in glycosylating proteins to be delivered to the lysosome.
Read Details