leighashlyn leighashlyn

03-12-2014
Biology

contestada

Can all molecules diffuse through all cell membranes

Respuesta :

deedaralibaloch deedaralibaloch

03-12-2014

no cell membranes are porous, but only to certain sized molecules. suppose a molecule of water diffuse through a cell membrane.the cell membrane will allow 7 atoms in at one entry point (this is just an example)

Answer Link

Otras preguntas

A line has slope 2/3 and y–intercept −2. Which answer is the equation of the line? y=2/3x+2 y=2/3x−2 y=−2x+2/3 y=2x+2/3

luis makes a 4% commision on his sales in a sporting goods store. For a $70 purchase, how much commision does Luis earn?

plz solve it plz all 11 ,12

What did the kennedy administration do in the civil rights act?

Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}

As jennifer approaches her 50th birthday, her fear of death has increased. as a result, she has decided to take all she can from life "before i have nothing lef

Can you help me with my definitions

When fritz drives to work his trip takes 36 minutes, but when he takes the train it takes 20 minutes. find the distance fritz travels to work if the train trav

I couldn't fit the whole graph but it's still clear please help

Little Brother ,explain Marcus’ current stage of identity development. Use examples from the text. After a heated classroom discussion with his substitute teach