BIO-103 Exam
Seven Characteristics for Life - answer1. Complex ordered structure
2. Homeostasis
3. Growth
4. Metabolism
5. Response to Environmental Stimuli
6. Reproduction
7. Adaptation
Complex Ordered Structure - answer Cells carry out the functions necessary for life
Homeostasis - answer Regulation of internal environment essential to keep internal
organization
Growth - answer Development of an organism's characteristics as determined by DNA
Metabolism - answer Transformation of energy to utilize (autotroph to heterotroph)
Response to Environmental Stimuli - answer Living organisms are able to respond to
stimuli such as light, moisture, or other organisms
Reproduction - answerLike makes like
Adaptation - answerThe ability to evolve over time in response to the enviornment
Taxonomy - answerThe system used to name and classify organisms
Binomial Nomenclature - answerUses Genus and Species
Examples: Sulfulobus acidocaldaris, Heliobacter pylori
Energy _______ through an ecosystem, whereas nutrients ________ through each
level - answerflows, cycle
Metabolism vs Homeostasis - answerMetabolism: Chemical reactions in an organism
Homeostasis: The organism adjusting to environmental changes
Dependent Variable - answerThe variable in an experiment which is not changed or
controlled, but is being tested or measured
Independent Variable - answerThe variable in an experiment which is changed or
controlled
, Dehydration Synthesis - answerJoins monomers into polymers, by removing water
Hydrolysis - answerBreaks polymers into monomers, by adding water
pH - answerThe amount of H+ (Hydrogen) in any given solution, used to measure it's
acidity from 0 to 14, with 7 being neutral
H+ > OH- is an acid
H+ < OH- is a base
The potential of Hydrogen, a mathematical measurement of free-floating hydrogen in a
solution
Four Characteristics of Water - answer1. Cohesion
2. Brownian Motion
3. Formation of Ice
4. Universal Solvent
Cohesion - answerThe ability of water molecules to stick together
The connection of H2O molecules by hydrogen bonds give it cohesion, the ability to
stick together, and surface tension, the strength between many hydrogen bonds in H2O
Brownian Motion - answerThe inherent movement of molecules creates the energy
called heat, measured by temperature
Formation of Ice - answerH2O becomes more dense when frozen because when the
temperature drops and molecules slow, they're held slightly farther apart than a liquid
after forming more hydrogen bonds
Universal Solvent - answerH2O is able to pry apart solutes (the things being dissolved)
by prying apart ionocally-bonded molecules due to it's characteristic as a solvent (the
dissolving agent)
Top 4 Elements that make up 96% of the human body - answerOxygen (65%)
Carbon (18.5%)
Hydrogen (9.5%)
Nitrogen (3%)
Organization of Life - answerAtoms
Molecules
Cell
Tissue
Organ
Body System
Seven Characteristics for Life - answer1. Complex ordered structure
2. Homeostasis
3. Growth
4. Metabolism
5. Response to Environmental Stimuli
6. Reproduction
7. Adaptation
Complex Ordered Structure - answer Cells carry out the functions necessary for life
Homeostasis - answer Regulation of internal environment essential to keep internal
organization
Growth - answer Development of an organism's characteristics as determined by DNA
Metabolism - answer Transformation of energy to utilize (autotroph to heterotroph)
Response to Environmental Stimuli - answer Living organisms are able to respond to
stimuli such as light, moisture, or other organisms
Reproduction - answerLike makes like
Adaptation - answerThe ability to evolve over time in response to the enviornment
Taxonomy - answerThe system used to name and classify organisms
Binomial Nomenclature - answerUses Genus and Species
Examples: Sulfulobus acidocaldaris, Heliobacter pylori
Energy _______ through an ecosystem, whereas nutrients ________ through each
level - answerflows, cycle
Metabolism vs Homeostasis - answerMetabolism: Chemical reactions in an organism
Homeostasis: The organism adjusting to environmental changes
Dependent Variable - answerThe variable in an experiment which is not changed or
controlled, but is being tested or measured
Independent Variable - answerThe variable in an experiment which is changed or
controlled
, Dehydration Synthesis - answerJoins monomers into polymers, by removing water
Hydrolysis - answerBreaks polymers into monomers, by adding water
pH - answerThe amount of H+ (Hydrogen) in any given solution, used to measure it's
acidity from 0 to 14, with 7 being neutral
H+ > OH- is an acid
H+ < OH- is a base
The potential of Hydrogen, a mathematical measurement of free-floating hydrogen in a
solution
Four Characteristics of Water - answer1. Cohesion
2. Brownian Motion
3. Formation of Ice
4. Universal Solvent
Cohesion - answerThe ability of water molecules to stick together
The connection of H2O molecules by hydrogen bonds give it cohesion, the ability to
stick together, and surface tension, the strength between many hydrogen bonds in H2O
Brownian Motion - answerThe inherent movement of molecules creates the energy
called heat, measured by temperature
Formation of Ice - answerH2O becomes more dense when frozen because when the
temperature drops and molecules slow, they're held slightly farther apart than a liquid
after forming more hydrogen bonds
Universal Solvent - answerH2O is able to pry apart solutes (the things being dissolved)
by prying apart ionocally-bonded molecules due to it's characteristic as a solvent (the
dissolving agent)
Top 4 Elements that make up 96% of the human body - answerOxygen (65%)
Carbon (18.5%)
Hydrogen (9.5%)
Nitrogen (3%)
Organization of Life - answerAtoms
Molecules
Cell
Tissue
Organ
Body System
