Homework Unit 2

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Date Submitted: 07/19/2015 06:37 PM

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1. Define

 Energy-­‐

 power

 derived

 from

 the

 utilization

 of

 physical

 or

 chemical

 resources,

 especially

 

to

 provide

 light

 and

 heat

 

 

2. What

 do

 the

 first

 and

 second

 laws

 of

 thermodynamics

 state?

 1st

 law

 states

 when

 energy

 

passes,

 as

 work,

 as

 heat,

 or

 with

 matter,

 into

 or

 out

 from

 a

 system,

 its

 internal

 energy

 changes

 

in

 accord

 with

 the

 law

 of

 conservation

 of

 energy.

 2nd

 law

 states

 in

 a

 natural

 thermodynamic

 

process,

 the

 sum

 of

 the

 entropies

 of

 the

 interacting

 thermodynamic

 systems

 increases.

 

 

3. What

 is/are

 the

 main

 function(s)

 of

 an

 enzyme?

 To

 catalyze

 chemical

 reactions.

 

 

4. What

 does

 the

 active

 site

 on

 an

 enzyme

 assist

 with?

 Binding

 substrate

 molecules

 for

 chemical

 

reactions

 

 

5. Describe

 the

 lock

 and

 key

 model

 of

 an

 enzyme.

 

 The

 ligand

 fits

 like

 a

 key

 in

 a

 lock

 in

 the

 

receptor,

 which

 then

 produces

 steps

 for

 signaling

 cells.

 

 

6. What

 affects

 the

 rate

 of

 diffusion

 through

 a

 cell

 membrane?

 Temperature

 and

 structure

 of

 the

 

cell

 membrane.

 

 

7. List

 the

 forms

 of

 passive

 transport.

 Osmosis,

 simple

 diffusion,

 and

 facilitated

 diffusion.

 

 

8. What

 products

 do

 we

 use

 to

 create

 ethanol?

 Carbon,

 Hydrogen,

 and

 Oxygen

 

 

9. What

 are

 plants

 classified

 as?

 Autotrophs

 

 

10....