Block 1 Flashcards
class
Characteristics of a Living System
Metabolism
Responsiveness
Movement
Growth + Diff.
Reproduction
Catabolism Vs. Anabolism
Cat = Breakdown
Ana = contruction
Levels of Biological Organization
Chemical
Cellular
Tissue
Organ
Organ systems
organism
Ecosystem
Homeostasis
Relative Constancy of an Internal Environment (within physiological environments). Varies around the set point.
equilibrium vs homeostasis
equilibrium does not use energy
Which best describes movement as a characteristic of living systems
a change in position of a limb, organ, cell or cell component
Negative Feedback
reaches physio limit and gets pushed back in the opposite direction
Steps of a feedback loop
Stimulus- Receptor- control center- effector- response
Manipulation of energy in a chemical bond
metabolism
Ionic Vs Covalent
ionic = electrons donated
covalent = electrons shared
Organic = C and H
Lipid
Carbohydrate
Protein
Nucleic Acid
CH
CHO
CHON
CHONP
carbon backbone in all of these
enzymes act as catalyst and do the following
reduce randomness of collision and bring substrates together better in orientation
reactions depend on
temperature
orientation
and chemical concentrations
Steps of the Scientific Method
Observation
Hypothesis and prediction
testing
analysis and conclusion
new hypothesis
