Chemistry
What property allows water molecules to stick to other water molecules?
Cohesion
What property allows water to stick to different types of molecules?
Adhesion
What are trace elements
elements found in very small amounts but important for life
What are the four macromolecules?
protein, carbohydrates, nucleic acids, and lipids
How can a paperclip float on water?
Surface tension
What property allows water to dissolve salt?
Solvent
What does CHNOPS stand for?
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus and Sulfur
What two macromolecules are responsible for energy?
lipids and carbs
Is water Polar, Non-Polar, or neither?
Water is Polar
Which property of water allows ice to float in water?
High density liquid
Why does water bead up on leaves?
Cohesion
What does it mean to be organic?
It has carbon
What elements are present in ALL macromolecules?
oxygen carbon and hydrogen
What is the charge of each element of water?
hydrogen is + and oxygen is -
What properties of water allow water to rise through a tube against gravity?
Cohesion and Adhesion
Why can't water dissolve oil?
Oil non-polar
What is the least common CHNOPS element
sulfur
What two macromolecules are present in the cytoplasm
nucleic acids and lipids
Why is water polar?
uneven sharing of electrons
How does sweat cool us down?
High specific heat
Which properties of water are caused by water being polar?
ALL
What would happen if ice did not float?
The ice would sink and all bodies of water would be pure ice. The world would end :(
What is the subunit for protein and how many are there?
amino acids and 20