Chapter 3, Quiz 1

 

Biology Quiz Campbell/Reece Chapter 3

Quiz 1

E.C.  Explain what an emergent property is, and how that applies to water.  Be detailed.

1.  What is a water molecule composed of?

2.  Which portion of the water molecule is electronegative (has a slight negative charge)?

E.C.  Why?

3.  Which portion of the water molecule has a slight positive charge?

E. C. Why?

4.  Water is a p______ molecule, meaning the opposite ends of the molecule have opposite charge.

E. C.  The attraction between water molecules is electrical / mechanical / chemical.

5.  How many hydrogen bonds with neighbors can each water molecule form?

6.  Define cohesion.

7.  Define adhesion.

8.  Explain how cohesion and adhesion transport water in plants; be complete.

9.  What are the vessels in plants that transport water called?

10.  Why does water have a greater surface tension than other liquids?

11. A cool hand grabs a hot pan handle.  Explain what happens with heating and cooling.

E. C. If a substance is heated up, it’s molecules will move slower / faster and be closer /

farther apart.   If it is a solid, it may become a ________ or even a ____________.  If a

substance cools, it’s molecules will move slower / faster and be closer / farther apart.  If it

is a liquid, it may become a  _____________.

12.  Anything that moves has what kind of energy?

E. C.  Heat / temperature is the measure of the total quantity of kinetic energy due to molecular motion in a body of matter;  heat / temperature measures the intensity of heat due to the average kinetic energy of the molecules.

14.  If a man is swimming in the Platte River, which has a higher temperature, the man or the river? 

Which has more heat, the man or the river?

15.  What are the two most common scales used to measure temperature?