Answered: Describe two properties of water which…

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter2: Chemistry Of Life

Section: Chapter Questions

Problem 10SQ: What kinds of bonds often control the shape (or tertiary form) of large molecules such as proteins?...

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Describe two properties of water which makes it essential to life as we know it. You need to name the property and describe how the structure of the water molecule allows for these unique characteristics.

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Step 1

The two important properties of that is essential to life are;

$1) P O L A R N A T U R E O F W A T E R : W a t e r c o n t a i n 2 H - a t o m s a n d 1 O - a t o m . O b e i n g m o r e e l e c t r o n e g a t i v e, a t t r a c t s t h e s h a r e p a i r o f e l e c t r o n t o w a r d s i t s e l f . D u e t o t h i s O - a t o m b e c o m e s s l i g h t l y n e g a t i v e w h i l e b o t h H - a t o m b e c o m e s s l i g h t l y p o s i t i v e . T h u s, t h e n e g a t i v e a n d p o s i t i v e c e n t r e s i n H_{2} O m o l e c u l e s a r e s e p a r a t e d . T h i s c a u s e s t h e p o l a r n a t u r e o f w a t e r m o l e c u l e . D u e t o t h i s p o l a r n a t u r e o f w a t e r m o l e c u l e i t i s a n e x c e l l e n t s o l v e n t a n d i s a b l e t o d i s s o l v e a v e r y l a r g e a m o u n t o f c o m p o u n d, m i n e r a l, v i t a m i n e s e t c . W h i c h a r e t h e n c a r r i e d i n t o d i f f e r e n t p a r t s o f b o d y i n a n i m a l s, h u m a n s a n d e v e n i n p l a n t s . f u r t h e r m o r e, l i v i n g o r g a n i s m h a v e m o r e t h a n 60 % - 70 % o f w a t e r t h e i r b o d y, w h i c h h e l p s t h e m i n t r a n s p o r t a t i o n o f f o o d t o c e l l i n d i s s o l v e d f o r m i n w a t e r . A l s o b l o o d a n d b o d y f l u i d s h a v e m o r e t h a n 90 % o f w a t e r i n i t, w h i c h m a k e s t h e i r f l o w e a s l y a n d i n c r e a s e s t h e i r c a r r y i n g c a p a b l i t y . A l l t h i s i s b o s s i b l e d u e t o P o l a r n a t u r e o f w a t e r, d u e t o w h i c h i t h a v e v e r y h i g h s o l u b l i t y$

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