BIO 101 Final Chapter 4a

Question 1

ATP

Release of energy occurs when:

Answer 1

terminal phosphate is removed

ATP is hydrolyzed to ADP

Question 2

ATP Phosphate groups:

Answer 2

Covalently bonded to each other
negatively charged
source of energy
release energy when separated from rest of molecule

Question 3

Chlorophylls

Answer 3

most abundant pigments
chlorophyll A- absorbs violet and red
chlorophyll B- absorbs blue and orange
colors of visible spectrum that drive photosynthesis are violet,blue, orange, and red.

Question 4

Photosynthesis Basics

Answer 4

Chemical Formula = 6CO2+6H2O – sunlight–> C6 H12 O6+ 6O2

Question 5

Structure of a chloroplast: organelle where photosynthesis occurs.

Answer 5

outer membrane
inner membrane
stack of thylakoid discs=granum (pligrana)
stroma=thick fluid found inside the chloroplast
inside=lumen

Question 6

Chlorophyll:

Answer 6

a green pigment found in the thylakoids
enables plant to convert light energy (sunlight) into chemical energy ( ATP or Glucose)
absorbs the blue and red colors of the visible spectrum.

Question 7

Light dependent/ “photo” reactions

4) order of events

Answer 7

PSII reaction center regains e- by splitting H2O

Question 8

Passage of electrons through the thylakoid membranes ( e- transport chain causes:

Answer 8

pump of H+ into lumen-> establishes H+ gradient
NADP+ is final e- acceptor -> coverted to NADPH
ATP synthase uses H+ gradient to generate ATP

Question 9

Occurs during calvin cycle:

Answer 9

Consumption of ATP
oxidation of NADPH 
consumption of CO2
carbon fixation
production of sugar
Not splitting H2O