Biochemistry - Intro Flashcards
What is Biology the study of?
Life
What are all living things made up of?
cells
How do all living things grow and maintain their structure?
taking in chemicals and energy from their environment
True or False. Not all living things respond to their external environment.
False. They do all respond to their external environment.
Why do all living things reproduce?
to pass on their organization, aka genetic information, to their offspring.
At a species level all living things ____/_____ and _____ to their environment.
At a species level, all living things EVOLVE/CHANGE and ADAPT to their environment.
VOCAB: Hypothesis
a tentative explanation of what you’ve observed. Can be used to propose a logical experiment.
VOCAB: Theory
widely accepted, successful, tested hypothesis accepted around the world.
What is an experimental “control”?
is a sample that undergoes all the same steps in the experiment except the one being tested.
What are two reasons why a “control” is important?
1) eliminates other effects that might influence the outcome of the experiment.
2) so that scientists can establish a cause and effect relationship.
VOCAB: Homeostasis
the thing that all living organisms do to maintain a relatively constant, stable internal environment regardless of the external environment.
What does homeostasis relie on?
It relies on feedback mechanisms
VOCAB: Hypothalamus
control centers: monitor and control body conditions
VOCAB: Sensors
they are all over your body and detect unacceptable levels and signal the appropriate brain center.
What is an adaptive response?
When the control center(hypothalamus) directs the body to behave in such a way that the normal state is regained.
