Properties of Water

Question 1

What is Cohesion?

Answer 1

Water sticks to water

Question 2

What is Adhesion?

Answer 2

Water sticks to other things

Question 3

Using the terms cohesion and adhesion, explain capillary action and give an example.

Answer 3

Water can travel up the roots of plants by sticking to itself and the perimeter of the roots

Question 4

Define universal solvent:

Answer 4

Water!

Question 5

What is surface tension?

Answer 5

Water allows things to float (stick bug, canon ball, etc)

Question 6

Explain why water is capable of carrying out the various properties it holds:

Answer 6

Polarity, H-bonds

Question 7

For each molecule list the following items:
- Monomer
- Polymer
- Elements that compose that macromolecule
- Function in the body

Answer 7

Carbs: monomer: monosaccharide
polymer: Polysaccharide
elements: C,H,O
Fun: short term energy

Proteins: Monomer: amino acids
Polymer: polypeptide
Elements: C,H,O,N
Fun: building blocks carrying out functions

Lipids: monomer: fatty acids + glycerol
polymer: triglycerides, phospholipids
elements: C,H,O
Fun: long term energy

Question 8

What is the purpose of dehydration synthesis?

Answer 8

Build polymer from 2+ monomers

Question 9

What is needed for dehydration synthesis to occur?

Answer 9

H2O

Question 10

What is the purpose of Hydrolysis?

Answer 10

break polymer into 2+ monomers

Question 11

What is needed for Hydrolysis?

Answer 11

H2O

Question 12

Where does mechanical digestion occur?

Answer 12

Mouth, stomach, small intestine

Question 13

Where does chemical digestion occur?

Answer 13

Mouth, stomach, small intestine

Question 14

List the different enzymes that “digest” the different macromolecules and where in the body that digestion occurs?

Answer 14

amylase: digests carbs- in mouth + small intestine
pepsin: digests proteins- in stomach
trypsin: digests proteins- in small intestine
bile: digests lipids- in small intestine

Question 15

List the organs through which “food” travels from entrance to exit.

Answer 15

mouth- esophagus- stomach- small intestine- large intestine- anus

Question 16

List the accessory organs, which assist with food digestion.

Answer 16

Salivary glands, liver, gallbladder, pancreas

Question 17

What is the relationship between the liver and the pancreas?

Answer 17

Both secrete enzymes into small intestine to aid in digestion

Question 18

What is the motion that propels food down the esophagus?

Answer 18

Peristalsis