Photosynthesis

Question 1

soil eaters (ancient Greeks)
produce O2 = dephlogisticated air

Answer 1

Plants

Question 2

comes from water alone (Jean Baptiste van Helmont)

Answer 2

Plant matter

Question 3

depends on CO2 = fixed air (Jean Senebier).

Answer 3

Photosynthesis

Question 4

Two gases are involved in Photosynthesis

Answer 4

CO2 and O2

Question 5

Chemical equation of photosynthesis

Answer 5

6CO2 + 12H2O + Light Energy → C6H12O6(Glucose) +602+6H2O

Question 6

lights that are effective in producing 02 during photosynthesis (Engelman).

Answer 6

Red and Blue light

Question 7

Final Electron acceptor in photosynthesis is

Answer 7

NADP+

Question 8

is an anabolic, endergonic, carbon dioxide (CO2) requiring process that uses light energy (photons) and water (H2O) to produce organic macromolecules (glucose).

Answer 8

Photosynthesis

Question 9

is a redox process where water is oxidized and carbon dioxide is reduced.

Oxidation and Reduction (Redox)

Answer 9

Photosynthesis

Question 10

• Adding O
• Removing H
• Loss of Electrons
• Releases Energy
• Exergonic

Answer 10

OXIDATION:

Question 11

• Removing O
• Adding H
• Gain of Electrons
• Stores Energy
• Endergonic

Answer 11

REDUCTION:

Question 12

reduced components of the photosynthesis equation

Answer 12

**6CO2+6H20 → **C6H12O6 +602

Question 13

oxidated components of the photosynthesis equation

Answer 13

6CO2+6H20 → C6H12O6 +602

Question 14

Reactants of photosynthesis

Answer 14

6CO2
12H2O

Question 15

products of photosynthesis

Answer 15

C6H12O6 (Glucose)
602
6H2O

Question 16

present in all photoautotrophic organisms that are able to make their own energy.

Answer 16

Photosynthesis

Question 17

The primary site of photosynthesis

Answer 17

all organs with photosynthetic pigments (i.e. chlorophyll).

Question 18

In true plants, the ________ are the major site of photosynthesis (specifically, the chloroplasts).

Answer 18

leaves

Question 19

Photosynthesis Consist of Two Processes:

Answer 19

The Light Reactions
The Dark Reactions

Question 20

light-dependent or photochemical processes

Answer 20

Light Reactions

Question 21

light-independent or carbon fixation processes

Answer 21

Dark Reactions

Question 22

conversion of light (solar) energy to chemical energy (ATP and NADPH).

Answer 22

Light Reactions

Question 23

Light Reactions Consists of certain particles called ______; each _______has a fixed quantity of energy

Is a form of electromagnetic energy, which travels in waves.

Answer 23

photons

Question 24

The distance between the crests of waves that determines electromagnetic energy.

Answer 24

(wavelength)

Question 25

The entire range of electromagnetic energy or radiation is called

Answer 25

electromagnetic spectrum.

Question 26

mixture of many wavelengths. Electromagnetic radiation from the _____ includes ultraviolet radiation and visible light of varying colors and wavelengths.

Answer 26

Sunlight

Question 27

Includes the wavelengths that drive photosynthesis. colors of light we can see

Answer 27

Visible Light Spectrum:

Question 28

pigments that absorb the visible spectrum

Answer 28

Photosynthetic pigments

Question 29

Photosynthetic pigments

Answer 29

Chlorophyll a Chlorophyll b xanthophyll carotenoids/ carotenes phaeophytin

Question 30

is the main photosynthetic pigment.

Answer 30

Chlorophyll a

Question 31

Accessory pigment that broadens the spectrum used for photosynthesis

Answer 31

chlorophyll b

Question 32

The difference in the absorption spectrum between chlorophyll a and b is due to a slight structural difference between the pigment molecules

Answer 32

true

Question 33

Accessory pigments called __ absorb excessive light that would damage chlorophyll

Answer 33

carotenoids

Question 34

chlorophyll a and b is due to a slight structural difference

Answer 34

ch3 chlorophyll a cho chlorophyll b

Question 35

contain the photosynthetic pigments (chlorophyll) which are located in the cell membrane in cyanobacteria, but in the chloroplast in algae and in true plants.

Answer 35

Thylakoid

Question 36

cyanobacteria thykaloid location

Answer 36

cell membrane

Question 37

thykaloid location in true plants and algae

Answer 37

chloroplast

Question 38

Thylakoids have organized complexes called

Answer 38

photosystems

Question 39

A Photosystem is Composed of:

Answer 39

Major reaction center (Chl a) Accessory pigments Primary electron acceptor

Question 40

The Thylakoid Membrane is populated by two types of photosystems:

Answer 40

Photosystem I (PSI): P700 Photosystem II (Ps II): P680

Question 41

Photosystem II is first in the process.

Answer 41

true

Question 42

graph plotting a pigment light absorption versus wavelength

Answer 42

absorption spectrum

Question 43

absorption spectrum of chlorophyll a

Answer 43

violet-blue and red light work best for photosynthesis

Question 44

profiles the relative effectiveness of different wavelengths of radiation in driving a process.

Answer 44

action spectrum