Cells can be described as having a cytoskeleton of internal structures that contribute to the shape, organization and movement of the cell. Which of the following is a part of the cytoskeleton?

Group of answer choices
A. glycogen
B. cellulose microfibrils
C. microfilaments
D. calcium depositories

The dna in a cell’s nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell. for example, consider these two proteins: phosphofructokinase (pfk) is an enzyme that functions in the cytoplasm during glycolysis. insulin, a protein that regulates blood sugar levels, is secreted from specialized pancreatic cells. assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations. for each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other

Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?