Which of the following cytoskeletal proteins can be found in prokaryotes?
A) crescentin
B) tubulin
C) keratin
D) vimentin
E) actin
A) crescentin
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Insulin can activate lipid synthesis in adipose cells and block breakdown of glycogen in the liver. How could one hormone have different effects on different organs?
_____ Adipose and liver cells may express distinct insulin receptors. _____ Adipose and liver cells may have unique signal transduction pathways activated by insulin. _____ Adipose cells do not express the insulin receptor while liver cells do. _____ Adipose and liver cells may contain different transcription factors that regulate the expression of different genes.
Phospholipid molecules that prevent the alveoli from collapsing are known as ________
A) laryngitis B) surfactant C) mucus D) plasma
What is the purpose of cholesterol in plasma membrane
What will be an ideal response?
The fewest number of individuals necessary to ensure the long term survival of a population is known as the
A) carrying capacity. B) resource population. C) lowest common denominator. D) minimum viable population.