BSC2010 Exam 2 Dennis questions with verified answers
___ ATP are produced during glycolysis and ___ aTP are produced
during the citric acid cycle Ans✓✓✓ 2,2
___ determine most of the membranes specific functions Ans✓✓✓
proteins
___ have a greater surface area relative to volume Ans✓✓✓ Small cells
___ help maintain water balance Ans✓✓✓ cell walls
___ is the ability of a solution to cause a cell to gain or lose water
Ans✓✓✓ Tonicity
___ is the capacity to cause change Ans✓✓✓ Energy
___ present a large surface area for enzymes that synthesize ATP
Ans✓✓✓ Cristae
___ regulate the entry and exit of molecules from the nucleus
Ans✓✓✓ Pores
____ allow passaged of hydrophilic substances across the membrane
Ans✓✓✓ Transport Proteins
,____ are found in leaves and other green organs of plants and in algae
Ans✓✓✓ Chloroplasts
____ are nonprotein enzyme helpers Ans✓✓✓ Cofactors
____ are oxidative organelles Ans✓✓✓ Peroxisomes
____ are the most abundant lipid in the plasma membrane Ans✓✓✓
Phospholipids
____ condenses to form discrete chromosomes Ans✓✓✓ Chromatin
____ enzymes strip two hydrogen atoms from the substrate (glucose),
thus oxidizing it Ans✓✓✓ dehydrogenase
____ has effects on membrane fluidity at different temperatures
Ans✓✓✓ cholesterol
____ is a form of allosteric regulation that can amplify enzyme activity
Ans✓✓✓ Coopertivity
____ is a specialized preparation technique that splits a membrane
along the middle of the phospholipid bilayer Ans✓✓✓ freeze fracture
,____ is a state of maximum stabilty Ans✓✓✓ Equilibrium
____ is the tendency for molecules to spread out evenly into the
available space Ans✓✓✓ Diffusion
____ leads to the partial degradation of sugars without the use of
oxygen Ans✓✓✓ fermentation
____ occurs when active transport of a solute indirectly drives the
transport of another solute Ans✓✓✓ Cotransport
____ prevents a cell from wasting chemical resources by synthesizing
more product than needed Ans✓✓✓ Feedback inhibition
____ proteins penetrate the hydrophobic core Ans✓✓✓ integral
____ provide corridors that allow a specific molecule or ion to cross the
membrane Ans✓✓✓ channel proteins
____ studies supported the fluid mosaic model Ans✓✓✓ freeze
fracture
, ____ takes cells apart and separates the major organelles from one
another Ans✓✓✓ Cell fractionation
_____ are the sites of cellular respiration, a metabolic process that
generates ATP Ans✓✓✓ Mitochondria
_____ enzymes transfer electrons from substrates to NAD+, forming
NADH Ans✓✓✓ dehydrogenase
_____ focus a beam of electrons through a speciman Ans✓✓✓
Transmission Electron Microscopes
_____ fractionate cells into their component parts Ans✓✓✓
Ultracentrifuges
_____ hold organic compounds and water Ans✓✓✓ Central vacuoles
_____ is the diffusion of water across a selectively permeable
membrane Ans✓✓✓ Osmosis
_____ moves substances against their concentration gradient Ans✓✓✓
Active Transport
___ ATP are produced during glycolysis and ___ aTP are produced
during the citric acid cycle Ans✓✓✓ 2,2
___ determine most of the membranes specific functions Ans✓✓✓
proteins
___ have a greater surface area relative to volume Ans✓✓✓ Small cells
___ help maintain water balance Ans✓✓✓ cell walls
___ is the ability of a solution to cause a cell to gain or lose water
Ans✓✓✓ Tonicity
___ is the capacity to cause change Ans✓✓✓ Energy
___ present a large surface area for enzymes that synthesize ATP
Ans✓✓✓ Cristae
___ regulate the entry and exit of molecules from the nucleus
Ans✓✓✓ Pores
____ allow passaged of hydrophilic substances across the membrane
Ans✓✓✓ Transport Proteins
,____ are found in leaves and other green organs of plants and in algae
Ans✓✓✓ Chloroplasts
____ are nonprotein enzyme helpers Ans✓✓✓ Cofactors
____ are oxidative organelles Ans✓✓✓ Peroxisomes
____ are the most abundant lipid in the plasma membrane Ans✓✓✓
Phospholipids
____ condenses to form discrete chromosomes Ans✓✓✓ Chromatin
____ enzymes strip two hydrogen atoms from the substrate (glucose),
thus oxidizing it Ans✓✓✓ dehydrogenase
____ has effects on membrane fluidity at different temperatures
Ans✓✓✓ cholesterol
____ is a form of allosteric regulation that can amplify enzyme activity
Ans✓✓✓ Coopertivity
____ is a specialized preparation technique that splits a membrane
along the middle of the phospholipid bilayer Ans✓✓✓ freeze fracture
,____ is a state of maximum stabilty Ans✓✓✓ Equilibrium
____ is the tendency for molecules to spread out evenly into the
available space Ans✓✓✓ Diffusion
____ leads to the partial degradation of sugars without the use of
oxygen Ans✓✓✓ fermentation
____ occurs when active transport of a solute indirectly drives the
transport of another solute Ans✓✓✓ Cotransport
____ prevents a cell from wasting chemical resources by synthesizing
more product than needed Ans✓✓✓ Feedback inhibition
____ proteins penetrate the hydrophobic core Ans✓✓✓ integral
____ provide corridors that allow a specific molecule or ion to cross the
membrane Ans✓✓✓ channel proteins
____ studies supported the fluid mosaic model Ans✓✓✓ freeze
fracture
, ____ takes cells apart and separates the major organelles from one
another Ans✓✓✓ Cell fractionation
_____ are the sites of cellular respiration, a metabolic process that
generates ATP Ans✓✓✓ Mitochondria
_____ enzymes transfer electrons from substrates to NAD+, forming
NADH Ans✓✓✓ dehydrogenase
_____ focus a beam of electrons through a speciman Ans✓✓✓
Transmission Electron Microscopes
_____ fractionate cells into their component parts Ans✓✓✓
Ultracentrifuges
_____ hold organic compounds and water Ans✓✓✓ Central vacuoles
_____ is the diffusion of water across a selectively permeable
membrane Ans✓✓✓ Osmosis
_____ moves substances against their concentration gradient Ans✓✓✓
Active Transport
