Rio Salado Bio156 Exam 1 || Already Graded A+.
Features that distinguish living organisms from non livingCellular basis- consist of one or more
cells
Requirement for energy and nutrients- sustaines by ongoing inputs of energy and nutrients
Homeostasis- living things sense and respond to change
DNA is hereditary- genetic info is stored in form of DNA and pass heritable traits to offspring
Levels of organizationatom, molecule, macromolecule, organelle, cell, tissue, organ, organ
system, organism, population, community, ecosystem, biosphere
Three domains and distinguishing factorsDomain Bacteria: singular bacterium that's most
diverse, lacks nucleus
Domain Archaea: group of single felled organisms that lack nucleus
Domain Eukarya: organisms whose cells have nucleus
Four Kingdoms of EukaryaProtist: eukaryote that is not plant, fungi, or animal
Fungi: consumer that breaks down material outside itself, then absorbs nutrients
Plants: multicellular photosynthetic producer
Animal: multicellular consumer that develops in stages to adulthood
Steps in hypothesis based scienceObserve: see something in world
Hypothesis: testable explanation for a natural phenomenon
Experiment: test whether hypothesis is supported using experimental and control groups
Conclusion: collect data and see whether it rejects or supports the null hypothesis
Explain how electron configuration influences the chemical properties of an atomEach cloud can
hold a determinant number of electrons. When the electron number changes, ions are formed.
The number of electrons influences the bonding between atoms
, hydrogen bondweak attraction between a hydrogen atom and another atom. Usually attracted to
opposite charge to create bond
covalent bondA chemical bond that involves sharing a pair of electrons between atoms in a
molecule
ionic bondFormed when one or more electrons are transferred/given up from one atom to another
and become charged
AnionA negatively charged ion
CationA positively charged ion
Describe how water contributes to the fitness of the environment that supports lifeCells are
mostly composed of water
Stabilizes temperature
Acts as a good solvent
Explain the basis for the pH scale.The basis for the pH scale is the amount of H+ and OH- ions
in a solution. More H+ ions means a solution is more acidic, while more OH- ions means the
solution is more basic
CarbohydratesAka sugars, made of aldehyde and alcohol functional group. 1 carbon : 2 hydrogen
: 1 oxygen ratio
LipidsEnergy-rich organic compounds, such as fats, oils, and waxes, that posses hydrocarbon
functional group
Features that distinguish living organisms from non livingCellular basis- consist of one or more
cells
Requirement for energy and nutrients- sustaines by ongoing inputs of energy and nutrients
Homeostasis- living things sense and respond to change
DNA is hereditary- genetic info is stored in form of DNA and pass heritable traits to offspring
Levels of organizationatom, molecule, macromolecule, organelle, cell, tissue, organ, organ
system, organism, population, community, ecosystem, biosphere
Three domains and distinguishing factorsDomain Bacteria: singular bacterium that's most
diverse, lacks nucleus
Domain Archaea: group of single felled organisms that lack nucleus
Domain Eukarya: organisms whose cells have nucleus
Four Kingdoms of EukaryaProtist: eukaryote that is not plant, fungi, or animal
Fungi: consumer that breaks down material outside itself, then absorbs nutrients
Plants: multicellular photosynthetic producer
Animal: multicellular consumer that develops in stages to adulthood
Steps in hypothesis based scienceObserve: see something in world
Hypothesis: testable explanation for a natural phenomenon
Experiment: test whether hypothesis is supported using experimental and control groups
Conclusion: collect data and see whether it rejects or supports the null hypothesis
Explain how electron configuration influences the chemical properties of an atomEach cloud can
hold a determinant number of electrons. When the electron number changes, ions are formed.
The number of electrons influences the bonding between atoms
, hydrogen bondweak attraction between a hydrogen atom and another atom. Usually attracted to
opposite charge to create bond
covalent bondA chemical bond that involves sharing a pair of electrons between atoms in a
molecule
ionic bondFormed when one or more electrons are transferred/given up from one atom to another
and become charged
AnionA negatively charged ion
CationA positively charged ion
Describe how water contributes to the fitness of the environment that supports lifeCells are
mostly composed of water
Stabilizes temperature
Acts as a good solvent
Explain the basis for the pH scale.The basis for the pH scale is the amount of H+ and OH- ions
in a solution. More H+ ions means a solution is more acidic, while more OH- ions means the
solution is more basic
CarbohydratesAka sugars, made of aldehyde and alcohol functional group. 1 carbon : 2 hydrogen
: 1 oxygen ratio
LipidsEnergy-rich organic compounds, such as fats, oils, and waxes, that posses hydrocarbon
functional group
