Exam (elaborations)
BIOL 151 Exam 1 SDSU Questions answers latest update
- Course
- BIOL 151
- Institution
- University Of Wisconsin - Madison
BIOL 151 Exam 1 SDSU Questions answers latest update
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BIOL 151 Exam 1 SDSUDifferent ways to do Science
Basic Science & Applied Science
*Basic Science - Expanding you knowledge while doing research
*Applied Science - Using science to solve immediate problems
What are the Properties of Life?
Matter Processing
Water Manipulation
Homeostasis
Organization
Reproduction
Growth & Development
Sensitivity
Mitosis
Asexual Reproduction
Process of a cell duplicating with the same DNA
Meiosis
Sexual Reproduction
Process of a cell replicating via two nuclear divisions forming genetically unique
DNA
What are the Biological Levels of Organization
Atom
Organelle
Cell
Tissue
,Organ - Organ System
Organism - Population - Community
Ecosystem
Biosphere
Why aren't viruses considered living?
They are not composed of cells
What is true about matter?
Everything is composed of matter
It cannot be created or destroyed
What are isotopes?
Atoms of the same element with a different number of neutrons?
How can isotopes be used in science?
They can be used to date once living things and what interacted with what.
How are orbitals filled?
The lowest energy level orbitals are filled first
How is a Periodic Table arranged?
Periods (Rows)
Groups (Columns)
By increasing atomic number
Atomic number is equal to what?
The number of electrons/protons
What is the Octet Rule?
Atoms are most stable when their outer (valence) electron shell is filled with 8
electrons
,What are Ionic Bonds?
Bonds between atoms where atoms can lose or gain electrons by another atom
TAKING electrons.
What are Covalent Bonds?
Bonds between atoms where the atoms SHARE the electrons
Which bond is stronger - Ionic or Covalent?
Covalent because the electrons are shared
What is a Nonpolar Covalent Bond?
Bonds between atoms where the electrons are EQUALLY shared
What is a Polar Covalent Bond?
Bonds between atoms where the electrons are UNEQUALLY shared.
3 Things about a Proton
Charge of +1
Mass of 1 AMU
Located in the Nucleus
3 Things about a Neutron
Charge of 0
Mass of 1 AMU
Located in the Nucleus
3 Things about a Electron
Charge of -1
Mass of 0
Located in Orbitals/Electron Cloud
Study Biology Key Concept Chart
, Study Biology Key Concept Chart
What cells undergo meiosis?
Eukaryotic Cells
What is the most simple way to organize life?
It's genetic & evolutionary history
What is the Hydrophobic Effect?
The tendency of nonpolar molecules to self-associate in water rather than
dissolve individually. (Fats & Oils)
Why is water a Polar Covalent Bond?
It unequally shares electrons
How are molecules categorized on how they interact with water?
Hydrophilic & Hydrophobic
What is true about Hydrophilic Compounds in water?
They are polar so they dissolve easily in water
(Salt & Sugar)
What is true about Hydrophobic Compounds in water?
They are nonpolar so they do not dissolve in water easily
(Fats & Oils)
The oils will form itself into droplets to limit the water-to-oil surface area
interface
What bonds does water form?
Hydrogen Bonds
What gives water it's unique properties?
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