Search found 2 matches

by porifera
Tue Nov 16, 2004 8:06 pm
Forum: Botany Discussion
Topic: Plant body
Replies: 3
Views: 7712

Plant body

do u anyone know the function of xylem and phloem rays?i heard it function for radial support but from where to where?and between these rays there are vascular cambium how can material be transfred fr phloem to xylem and vice versa?and what is actually annual rings?
by porifera
Sat Nov 13, 2004 2:36 pm
Forum: Molecular Biology
Topic: POLAR OR NONPOLAR Y OR Y NOT?
Replies: 11
Views: 24106

POLAR OR NONPOLAR Y OR Y NOT?

HOW CAN U ACTUALLY DETERMINE WHETHER A MOLECULE IS POLAR OR NOT? IT IS EASY IF SIMPLE MOLECULE LIKE CCI4 BY KNOWING THE RESULTANT DIPOLE BUT WHAT IF COMPLEX BIG MOLECULE LIKE GLUCOSE.AS WHAT I KNOW EVERYONE SAYS THAT ORGANIC MOLECULE ARE ALL NONPOLAR WHAT U COULD DO TO SHOW THIS I KNOW IT CAN DISSOL...