Necessary Life Functions and Survival Needs

Question 1

Life Function

Answer 1

Maintain boundaries

Question 2

Life Function

Answer 2

Movement
*Locomotion
*Movement of substances

Question 3

Life Function

Answer 3

Responsiveness
*Ability to sense changes and react

Question 4

Life Function

Answer 4

Digestion
*Breakdown and absorption of nutrients

Question 5

Life Function

Answer 5

Metabolism—chemical reactions within the
body
*Break down complex molecules into smaller
ones
*Build larger molecules from smaller ones
*Produces energy
*Regulated by hormones

Question 6

Life Function

Answer 6

Excretion
*Eliminates waste from metabolic reactions
*Wastes may be removed in urine or feces

Question 7

Life Function

Answer 7

Reproduction
*Occurs on cellular level or organismal level
*Produces future generation

Question 8

Life Function

Answer 8

Growth
*Increases cell size and number of cells

Question 9

Life Function

Answer 9

Differentiation
*The ability of a unspecialized (stem) cell to
turn into a specialized adult cell

Question 10

Survival Need

Answer 10

Nutrients
*Chemicals for energy and cell building
*Includes carbohydrates, proteins, lipids,
vitamins, and minerals