PHYS 261 MOST ASKED QUESTIONS AND 100%
CORRECT ANSWERS
Quaternary structure
Formed when multiple tertiary structures come together in a protein.
Cation
A positively-charged ion.
Carbonic acid bicarbonate system
An important buffer in the human body.
Secondary structure
Structures like alpha-helix and B-sheets in proteins.
Cholesterol
A precursor to steroid hormones and a component of animal cell membranes.
pH
A solution is acidic if its pH is less than 7.
Nucleic acids
Composed of nucleotides.
Glycogen
An example of a carbohydrate.
Nucleus
The center of an atom.
Deoxyribose
The five-carbon sugar found in DNA.
Triglycerides
Lipids that store energy.
Ribose
The five-carbon sugar present in RNA.
Binding Sites
Regions of an enzyme bringing substrates together
Aerobic Metabolism
, Glucose metabolism producing more ATP with oxygen
Activation Energy
Energy needed to position molecules for interaction
Competitive Inhibitor
Binds to the enzyme's active site
Allosteric Modulator
Binds to a region other than the active site
Transcription
Process of forming mRNA from genes
Transcription Factors
Induce mRNA formation by binding to the promotor
Cellular Respiration Pathways
Glycolysis 🡪 Intermediate Step 🡪 Kreb's cycle 🡪 ETC
Plasma & interstitial fluid
two extracellular fluid compartments in the body
Simple diffusion
Transport system that does not use a protein
Hypotonic solutions
Solutions with lower concentrations of solutes than hypertonic solutions
Resting membrane potential
The membrane potential of a neuron at -70mV
Exocytosis
Process by which a cell transports large molecules out of the cell
Permeability
Property or characteristic of membranes
Osmosis
Transport process responsible for water movement in and out of the cell
Facilitated diffusion
Transport process that does not require ATP
Active transport
CORRECT ANSWERS
Quaternary structure
Formed when multiple tertiary structures come together in a protein.
Cation
A positively-charged ion.
Carbonic acid bicarbonate system
An important buffer in the human body.
Secondary structure
Structures like alpha-helix and B-sheets in proteins.
Cholesterol
A precursor to steroid hormones and a component of animal cell membranes.
pH
A solution is acidic if its pH is less than 7.
Nucleic acids
Composed of nucleotides.
Glycogen
An example of a carbohydrate.
Nucleus
The center of an atom.
Deoxyribose
The five-carbon sugar found in DNA.
Triglycerides
Lipids that store energy.
Ribose
The five-carbon sugar present in RNA.
Binding Sites
Regions of an enzyme bringing substrates together
Aerobic Metabolism
, Glucose metabolism producing more ATP with oxygen
Activation Energy
Energy needed to position molecules for interaction
Competitive Inhibitor
Binds to the enzyme's active site
Allosteric Modulator
Binds to a region other than the active site
Transcription
Process of forming mRNA from genes
Transcription Factors
Induce mRNA formation by binding to the promotor
Cellular Respiration Pathways
Glycolysis 🡪 Intermediate Step 🡪 Kreb's cycle 🡪 ETC
Plasma & interstitial fluid
two extracellular fluid compartments in the body
Simple diffusion
Transport system that does not use a protein
Hypotonic solutions
Solutions with lower concentrations of solutes than hypertonic solutions
Resting membrane potential
The membrane potential of a neuron at -70mV
Exocytosis
Process by which a cell transports large molecules out of the cell
Permeability
Property or characteristic of membranes
Osmosis
Transport process responsible for water movement in and out of the cell
Facilitated diffusion
Transport process that does not require ATP
Active transport
