COL + H20 Flashcards
(41 cards)
What kind of bonds hold together hydrogen and oxygen atoms?
Polar bonds
Polar bonds hold together what atoms?
Hydrogen and oxygen atoms
The electrons are not shared equally. What kind of molecule does this create?
A covalent molecule
What does the polarity of water allow it to do to most substances?
Dissolve
Because water dissolves most substances, what is water often referred to as?
The Universal Solvent
What is the property of water molecules sticking to other water molecules called?
Cohesion
How many Hydrogen atoms are in a water molecule?
Two
How many Oxygen atoms are in a water molecule?
One
In what way is hydrogen charged?
Positively
In what way is Oxygen charged?
Negatively
What is the property of water molecules sticking to other materials due to its polar nature called?
Adhesion
What kind of tension makes a skin-like surface formed due to the polar nature of water?
Surface tension
Are hydrogen bonds easy or difficult to break?
Easy
Any living thing is called a(n) ___.
Organism
Living things have what in the form of DNA?
Genetic material
All organisms must use energy to break down and build up materials in a process called ___.
Metabolism
Organisms must retain _____.
Homeostasis
Levels of biological organization range from what to what?
Molecules to biosphere
Living thing change over long periods of time. What are these changes called?
Adaptations
What is the first characteristic of life?
Order
What is the second characteristic of life?
Heredity/DNA
What is the third characteristic of life?
Reproduction
What is the fourth characteristic of life?
Growth and Development
What is the fifth characteristic of life?
Response to the environment