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Describe how the guard cells surrounding the leaf pores are adapted to their role

unevenly thickened cell wall able to change shape / bendtransport proteins / ion pumps, in plasma membrane(presence of) chloroplasts (to provide, ATP / energy)
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Answered by Faiza R. • Biology tutor
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Explain the formation of an action potential in a neuron

Firstly, depolarization of the neuronal membrane occurs. This is due to a stimulus which causes voltage-gated sodium ion channels to open, allowing sodium ions to diffuse down their concentration gradient in...
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Answered by Sophie M. • Biology tutor
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Describe the ways in which the pancreas acts as both an endocrine and exocrine gland

The Endocrine part of the Pancreas is the Islets of Langerhans which contain alpha and beta cells. These cells secrete hormones directly into the blood. The alpha cells secrete glucagon and the beta cells se...
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Answered by Esther S. • Biology tutor
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Suggest why an increase in phosphate can be linked to embryonic growth.

Embryonic growth requires cell division and the subsequent synthesis of new tissue. This invariably requires energy and raw materials to progress. Phosphate is an important component of ATP, which acts as a ...
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Answered by Vinit V. • Biology tutor
9853 Views

Overview the cell structure.

Cells are the smallest structural and functional units of an organism. Which means an organism can consist of a single cell or multiple cells. Usually cells are microscopic which means they can not be seen w...
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Answered by Msuur S. • Biology tutor
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