Chapter 2

Question 1

What is the Hierarchical Order of Life?

Answer 1

Subatomic particles > atoms > molecules > cells > tissues > organs > organ systems > organisms > populations > communities > ecosystems > biosphere

Question 2

What are Emergent Properties?

Answer 2

Properties that emerge as a result of arrangement and interaction of components

Question 3

Give an example of Emergent Properties

Answer 3

Chlorophyll molecules are made up of many atoms in a specific arrangement in order to absorb solar energy better. Sodium + chlorine is another example

Question 4

substance that cannot be broken down to other substances by chemical reactions

Answer 4

Element

Question 5

Substance consisting of two or more elements combined in a fixed ratio

Answer 5

Compound

Question 6

Oxygen carbon hydrogen nitrogen

Answer 6

96% of living matter

Question 7

Calcium phosphorus potassium sulfur

Answer 7

4% of organism mass

Question 8

Trace elements

Answer 8

Iron

Iodine - only vertebrates

Question 9

Stable isotope

Answer 9

Nuclei of isotope do not have a tendency to lose subatomic particles and energy

Question 10

Compounds formed by ionic bonds

Answer 10

Salts or ionic compounds

Question 11

Why is molecular shape crucial

Answer 11

It determines how biological molecules recognize and respond to on another with specificity