Properties of Life Quiz
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What are the seven characteristics of life?
Organization, Homeostasis, Metabolism, Reproduction, Growth + Development, Response to Stimuli, Evolution
What is organization?
All animals are made of cells, and the cells are sorted into tissues, which are sorted into organs, which make up the body.
What is a unicellular organism?
An organism that only has 1 cell
What is a multicellular organism?
Has more than 1 cell
What is the smallest living unit in all organisms?
The cell
What is homeostasis?
Maintaining a regulated balance so biological processes can happen
What is this an example of? Enzymes maintain a pH range to work
Homeostasis
What is this an example of? Your body maintaining a certain temperature or water concentration
Homeostasis
What does your body do to help maintain homeostasis?
Your body has feedback systems in place
What is metabolism?
Metabolism is capturing and using energy for processes (like homeostasis) and include chemical reactions happening in your body
What is this an example of? Photosynthesis (plants turning light energy into glucose)
Metabolism
What is this an example of? Animals eating and digesting food then turning it into glucose
Metabolism
What is this an example of? Glucose getting broken down in cellular respiration to make ATP energy
Metabolism
What are examples of reproduction?
-Unicellular bacteria copying DNA and splitting -Sperm and egg cells uniting, making a fertilized egg called a zygote that will turn into a baby
What is growth and development?
Organisms growing based on genetic instructions (genetic material codes for the growth and development)
What is response to stimuli?
Organisms respond to either internal stimuli or external stimuli
Is this external or internal stimuli? Body systems alerting hunger
Internal
Is this external or internal stimuli? A spider causes me to flee my desk
External
What is this an example of? Plants leaning towards the light
Response to stimuli
What is evolution?
Gene frequencies that change over time, resulting in adaptations in an organism
What is important to note about these characteristics?
The characteristics can be adjusted, and they have exceptions