lizaa0ngJul5ia lizaa0ngJul5ia

16-03-2017
Physics

contestada

According to the pressure-flow hypothesis, why must sieve-tube elements in phloem be living cells?

Respuesta :

MissPhiladelphia MissPhiladelphia

24-03-2017

Base from the pressure-flow hypothesis, the sieve tube in the phloem should be living cells because sugars are transported across the membranes by the active transport which needs ATP that is produced during respiration. Hope this helps.

Answer Link

Otras preguntas

Can someone help me

which equation represents a side that is perpendicular to side d?

Which resources is most usefull for finding the correct spelling of words if you have Internet access

It took bab 55 minutes to clean the garage . How many seconds did it take bob there 60 secounds in one minute.

Adrian, Ben and Charlie share some sweets in the ratio of 8:5:10. Charlie got 24 more sweets than Adrian. Work out the total number of sweets.

Which sentence uses the word axes correctly? A. A pie graph shows ow many axes are included in the whole. B. The axes of a graph extend both vertically and hori

How did the English colonists interact with the Native Americans; who was Metacomet and what was King Philip’s War?

In the figure, the combined measurement of angles A, E, and K is 127° and angle G measures 90°. What is the measurement of angle B? A.40° B.45° C.53° D.90°

6. A resistor is made out of a wire having a length L. When the ends of the wire are attached across the terminals of an ideal battery having a constant voltage

buddha taught that the cure for human suffering was to