Explanation:
Most of the cell surface receptors and glycoproteins. These glycoproteins have active sites that recognize specific signals, like hormones, that initiate secondary signaling pathways inside of the cell, in response to the external signal. This is how cells respond to environmental stimuli.
If a change in glycoproteins makes them unable to bind signaling molecules (like hormones) or makes them permanently bind these molecules, there will definitely be a defect in how the cell responds to external stimuli. The cell will be, for example, be unable to respond to insulin in case of elevated blood sugar levels as is the case with diabetics.
Learn More:
For more on glycoproteins check out;
brainly.com/question/11473349
brainly.com/question/13602455
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The answer is B I'm pretty sure of it.
Answer:
Fred Hoyle
Explanation:
Sir Fred Hoyle FRS was an English astronomer who formulated the theory of stellar nucleosynthesis. He also held controversial stances on other scientific matters—in particular his rejection of the "Big Bang" theory, a term coined by him on BBC radio, and his promotion of panspermia as the origin of life on Earth
Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
Answer:
fHay dos tipos de plastos claramented diferenciados, según la estructura de sus membranas: los plastos primarios, que se encuentran en la mayoría de las plantas y algas; y plastos secundarios, más complejos, que se encuentran en el plancton
Explanation:
