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Intro to Biology Chapter 1
Outline of lecture and chapter for chapter 1.
15
Biology
Undergraduate 2
10/05/2014

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Term
What is the smallest, most basic unit of life?
Definition
A cell.
Term
Organisms must be what?
Definition
Unicellular or multicellular.
Term
What is tissue made up of?
Definition
Similar cells.
Term
What are organs made up of?
Definition
tissue.
Term
What are organ systems?
Definition
Organs working together.
Term
What does life require?
Definition
Materials and energy.
Term
Can life be maintained without materials and energy?
Definition
No.
Term
What is food?
Definition
Building blocks and energy sources.
Term
What is energy?
Definition
The capacity to do work.
Term
What is metabolism?
Definition
all chemical reactions occurring in the cell.
Term
Ultimate source of energy for nearly all life on earth?
Definition
the sun.
Term
What does photosynthesis do?
Definition
transforms solar energy into chemical energy of food.
Term
what is homeostasis?
Definition
Maintenance of internal conditions within certain boundaries.
Term
What is may be behavior for homeostasis?
Definition
moving to a warmer area.
Term
Why may homeostasis not require conscious activity?
Definition
The liver releases stored sugar.
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