fig. 5-00
DESCRIPTION
On the platform, the diver has more potential energy. Fig. 5-01 On the platform, the diver has more potential energy. Climbing the steps converts kinetic energy of muscle movement to potential energy. Diving converts potential energy to kinetic energy. In the water, the diver has less potential energy.TRANSCRIPT
Fig. 5-00
Fig. 5-01
Climbing the stepsconverts kineticenergy of musclemovement topotential energy.
On the platform,the diver has morepotential energy.
Diving convertspotential energyto kinetic energy.
In the water, thediver has lesspotential energy.
Fig. 5-02
Fuel rich inchemicalenergy
Energy conversionWaste productspoor in chemicalenergy
Gasoline
Oxygen
Carbon dioxide
WaterEnergy conversion in a car
Energy for cellular work
Energy conversion in a cell
Heatenergy
Heatenergy
Carbon dioxide
Water
Food
Oxygen
Combustion
Cellularrespiration
Kinetic energyof movement
ATP
Fig. 5-03
(a) Food Calories (kilocalories) invarious foods
(b) Food Calories (kilocalories) weburn in various activities
Cheeseburger
Spaghetti with sauce (1 cup)
Pizza with pepperoni (1 slice)
Peanuts (1 ounce)
Apple
Bean burrito
Fried chicken (drumstick)
Garden salad (2 cups)
Popcorn (plain, 1 cup)
Broccoli (1 cup)
Baked potato (plain, with skin)
Food Calories Food
295
241
220
193
181
166
81
56
189
31
25
Activity Food Calories consumed perhour by a 150-pound person*
979
510
490
408
204
73
61
245
28
Running (7min/mi)
Sitting (writing)
Driving a car
Playing the piano
Dancing (slow)
Walking (3 mph)
Bicycling (10 mph)
Swimming (2 mph)
Dancing (fast)
*Not including energy necessary for basic functions, suchas breathing and heartbeat
Fig. 5-03a
(a) Food Calories (kilocalories) in various foods
Cheeseburger
Spaghetti with sauce (1 cup)
Pizza with pepperoni (1 slice)
Peanuts (1 ounce)
Apple
Bean burrito
Fried chicken (drumstick)
Garden salad (2 cups)
Popcorn (plain, 1 cup)
Broccoli (1 cup)
Baked potato (plain, with skin)
Food Calories Food
295
241
220
193
181 166
81
56
189
31
25
Fig. 5-03b
(b) Food Calories (kilocalories) we burn in various activities
Activity Food Calories consumed perhour by a 150-pound person*
979
510
490
408
204
73 61
245
28
Running (7min/mi)
Sitting (writing)
Driving a car
Playing the piano
Dancing (slow)
Walking (3 mph)
Bicycling (10 mph) Swimming (2 mph)
Dancing (fast)
*Not including energy necessary for basic functions, such as breathing and heartbeat
Fig. 5-04
Triphosphate Diphosphate
Adenosine Adenosine
Energy
ATP ADP
P P P P P P
Phosphate(transferred to
another molecule)
Fig. 5-05
ATP
ATP
ATP
ADP
ADP
ADP
P
P
P
ADP P
P P
P
PX X YY
(a) Motor protein performing mechanical work
(b) Transport protein performing transport work
(c) Chemical reactants performing chemical work
Solute
Solute transported
Protein moved
Product madeReactants
Transportprotein
Motorprotein
Fig. 5-05a
ATP ADP PADP P
(a) Motor protein performing mechanical workProtein moved
Motorprotein
Fig. 5-05b
ATP ADP P
P P
(b) Transport protein performing transport work
Solute
Solute transported
Transportprotein
Fig. 5-05c
ATP ADP P
P
PX X YY
(c) Chemical reactants performing chemical workProduct madeReactants
Fig. 5-06
Cellular respiration:chemical energyharvested fromfuel molecules
Energy forcellular work
ATP
ADP P
Fig. 5-07
(a) Without enzyme (b) With enzyme
Reactant Reactant
Products Products
Activationenergy barrier Activation
energy barrierreduced byenzyme
Enzyme
Ener
gy le
vel
Ener
gy le
vel
Fig. 5-07a
(a) Without enzyme
Reactant
Products
Activationenergy barrier
Ener
gy le
vel
Fig. 5-07b
(b) With enzyme
Reactant
Products
Activationenergy barrierreduced byenzyme
EnzymeEn
ergy
leve
l
Fig. 5-08
Gene for lactase
Mutated genes(mutations shown in orange)
Mutated genes screenedby testing new enzymes
Gene duplicated andmutated at random
Genes coding for enzymesthat show new activity
Genes coding for enzymesthat do not show new activity
Genes duplicated andmutated at random
Mutated genes screenedby testing new enzymes
After seven rounds, somegenes code for enzymes that canefficiently perform new activity.
Ribbon model showing the polypeptidechains of the enzyme lactase
Fig. 5-08aGene for lactase
Mutated genes(mutations shown in orange)
Mutated genes screenedby testing new enzymes
Gene duplicated andmutated at random
Genes coding for enzymesthat show new activity
Genes coding for enzymesthat do not show new activity
Genes duplicated andmutated at random
Mutated genes screenedby testing new enzymes
After seven rounds, somegenes code for enzymes that canefficiently perform new activity.
Fig. 5-08b
Ribbon model showing the polypeptidechains of the enzyme lactase
Fig. 5-09-1
Active site
Enzyme(sucrase)
Sucrase can accept amolecule of its substrate.
H2O
Fig. 5-09-2
Active site
Enzyme(sucrase)
Sucrase can accept amolecule of its substrate.
Substrate (sucrose)
Substrate bindsto the enzyme.
Fig. 5-09-3
Active site
Enzyme(sucrase)
Sucrase can accept amolecule of its substrate.
Substrate (sucrose)
Substrate bindsto the enzyme.
The enzymecatalyzes thechemical reaction.
H2O
Fig. 5-09-4
Active site
Enzyme(sucrase)
Sucrase can accept amolecule of its substrate.
Substrate (sucrose)
Substrate bindsto the enzyme.
The enzymecatalyzes thechemical reaction.
H2O
Fructose
Glucose
The productsare released.
Fig. 5-10(a) Enzyme and substratebinding normally
(b) Enzyme inhibition bya substrate imposter
(c) Enzyme inhibition bya molecule that causesthe active site to changeshape
Substrate
Substrate
Substrate
Active site
Active site
Active site
Inhibitor
Inhibitor
Enzyme
Enzyme
Enzyme
Fig. 5-10a
(a) Enzyme and substrate binding normally
Substrate
Enzyme
Active site
Fig. 5-10b
(b) Enzyme inhibition by a substrate imposter
Substrate
Active site
Inhibitor
Enzyme
Fig. 5-10c
(c) Enzyme inhibition by a molecule thatcauses the active site to change shape
SubstrateActive site
Inhibitor
Enzyme
Fig. 5-11
Cell signaling
Attachment tothe cytoskeletonand extracellular
matrix
Enzymatic activity
Cytoskeleton
Cytoplasm
Cytoplasm
Transport
Fibers ofextracellularmatrix
Intercellularjoining
Cell-cellrecognition
Fig. 5-12Molecules of dye Membrane
(a) Passive transport of one type of molecule
(b) Passive transport of two types of molecules
Net diffusion Net diffusion Equilibrium
Net diffusion Net diffusion Equilibrium
Net diffusion Net diffusion Equilibrium
Fig. 5-12a
Molecules of dye Membrane
(a) Passive transport of one type of molecule
Net diffusion Net diffusion Equilibrium
Fig. 5-12b
(b) Passive transport of two types of molecules
Net diffusion Net diffusion Equilibrium
Net diffusion Net diffusion Equilibrium
Fig. 5-13-1
Hypotonic solution Hypertonic solution
Sugarmolecule
Selectivelypermeablemembrane Osmosis
Fig. 5-13-2
Hypotonic solution Hypertonic solution
Sugarmolecule
Selectivelypermeablemembrane Osmosis
Isotonic solutions
Osmosis
Fig. 5-14
Animal cell
Plant cell
Normal
Flaccid (wilts)
Lysing
Turgid
Shriveled
Shriveled
Plasmamembrane
H2OH2O H2O H2O
H2OH2OH2O H2O
(a) Isotonicsolution
(b) Hypotonicsolution
(c) Hypertonicsolution
Fig. 5-14a
Animal cell
Plant cell
Normal
Flaccid (wilts)
H2OH2O
H2O H2O
(a) Isotonicsolution
Fig. 5-14b
Lysing
Turgid
H2O
H2O
(b) Hypotonicsolution
Fig. 5-14c
Shriveled
Shriveled
Plasmamembrane
H2O
H2O
(c) Hypertonicsolution
Fig. 5-15
Fig. 5-16-1
Lower solute concentration
Higher solute concentration
ATP
Solute
Fig. 5-16-2
Lower solute concentration
Higher solute concentration
ATP
Solute
Fig. 5-17
Outside of cell
Cytoplasm
Plasmamembrane
Fig. 5-18
Fig. 5-19
Outside of cell Cytoplasm
Reception Transduction ResponseReceptorprotein
Epinephrine(adrenaline)from adrenalglands
Plasma membrane
Proteins of signal transduction pathway
Hydrolysisof glycogenreleasesglucose forenergy
Fig. 5-19a
Outside of cell Cytoplasm
ReceptionTransduction ResponseReceptor
protein
Epinephrine(adrenaline)from adrenalglands
Plasma membrane
Proteins of signal transductionpathway
Hydrolysisof glycogenreleasesglucose forenergy
Fig. 5-20
Fig. 5-UN01
Energy for cellular work
Adenosine
AdenosinediphosphateEnergy from
organic fuel
Phosphate
ATPcycle
ATP ADP
P P P P P PAdenosine
Adenosinetriphosphate
Fig. 5-UN02
Reactant Reactant
Products Products
Enzyme added
Act
ivat
ion
ener
gy
Fig. 5-UN03
Passive Transport(requires no energy)
Active Transport(requires energy)
Diffusion Facilitated diffusion OsmosisHigher solute concentration
Lower solute concentration
Higher water concentration(lower solute concentration)
Lower water concentration(higher solute concentration)
Solute
Higher soluteconcentration
Lower soluteconcentration
ATP
Solu
te
Solu
te
Wat
er
Solu
te
MEMBRANE TRANSPORT
Fig. 5-UN04
Exocytosis Endocytosis