Characteristics of Life Test Flashcards
Define Living
Has all Characteristics of Life
Define Non-living
Never had/missing one characteristic of life
Define Dead
lost all or at least one characteristic of life
Define Dormant
“A state of minimal metabolic activity with cessation of growth and development”- Google
Define Cells
The smallest unit of life
What do cells contain and why is t important?
DNA, it passes through generation to generation
Do cells differ in structure and function?
Yes
Define unicellular
One cell
Define multicellular and give and example
More than one cell
EX: plants, animals
Why is energy needed for life?
To do work to maintain the COL
Starting at the smallest level, list the leaves of hierarchy
Atom, DNA, cells, tissues, organs, organ systems, organism, population, community, eco system, biosphere.
How do we get energy?
Metabolism
Define metabolism
rate at which we obtain energy from food.
What is the difference between anabolic and catabolic reactions?
Ana- Make
Cata-Break
What is the form of energy needed for our cells?
ATP
Define Homeostasis
Maintaining a steady state of body.
EX: Body Temp, Pulse
What is the difference between growth and development?
Growth- Gets larger/bigger
Development- Changes
Why is growth and development necessary?
Because my cells are constantly dieting and to be replaced.
Define and explain when asexual reproduction is needed
To make a new cell at all times
Define and explain when sexual reproduction is needed
To continue to add to the population
What is stimulus and why is it essential?
An external factor that has an impact on the living thing. We need it to maintain our rage of tolerance, if we do not respond to it we could die.
What does Life Evolves mean?
Life changes overtime
Do individuals evolve?
No they do not
