III C

Question 1

Biological process that captures light energy and transforms it into chemical bond energy of organic molecules

Answer 1

Photosynthesis

Question 2

Continuous series of radiation of which visible light is only a very small part

Answer 2

The electromagnetic spectrum

Question 3

Light is composed of small particles called

Answer 3

Photons

Question 4

The energy of a photon is ______ proportional to its wavelength

Answer 4

Inversely proportional

Question 5

When a photon of light is absorbed, an electron _____

Answer 5

Is raised to a higher energy state

Question 6

When an electron is raised to a higher energy state, either _____ or ______ happens

Answer 6

The electron returns to its ground state with the release of energy as heat or as light of a longer wavelength (fluorescence)
Or
Electron leaves the action (necessary for photosynthesis to proceed)

Question 7

Substances that absorb light are called ______, different _______ absorbed light of different wavelengths

Answer 7

Pigments

Question 8

Chloroplasts contain the green pigment called ______

Answer 8

Chlorophyll

Question 9

Photosynthesis takes place in the ______ in eukaryotes

Answer 9

Chloroplasts

Question 10

Chloroplasts have a _____ surrounding them in addition to an elaborate internal _____ system that is continuous with the inner membrane

Answer 10

Double membrane

Thylakoid membrane

Question 11

Within chloroplasts, chlorophyll is located in the membranes of flatted disks called _____, which are stacked to form _____. Thylakoid membranes enclosed by the

Answer 11

Thylakoids

Grana

Question 12

Thylakoid membranes enclose the Thylakoid interior space or _____

Answer 12

Lumen

Question 13

The fluid filled matrix surrounding the grand is called the _____

Answer 13

Stroma

Question 14

Photosynthetic tissue is located in the middle portion of a leaf, between the surfaces of the lead blade, and is called the _____. Palisade and spongy _____ cells contain 20-100 chloroplasts

Answer 14

Mesophyll

Question 15

Thylakoid membranes contain several kinds of pigments, including _____, the main pigment of photosynthesis

Answer 15

Chlorophyll

Question 16

A chlorophyll has 2 main parts

Answer 16

One captures energy

Long hydrocarbon chain that anchors the molecule in the Thylakoid membrane

Question 17

There are several kinds of chlorophyll, the most important one is ______, since only it can initiate the light dependent reactions of photosynthesis

Answer 17

Chlorophyll A

Question 18

Chlorophyll B, xanthophylls and carotenoids are ______ which reflect yellow-green, yellow, and yellow-orange

Answer 18

Accessory pigments

Question 19

The _____ of a pigment is a plot of its absorption of light at various wavelengths

Answer 19

Absorption spectrum

Question 20

The _____ of photosynthesis is a graph of the rate of photosynthesis at various wavelengths

Answer 20

Action spectrum

Question 21

The action spectrum closely _____ the absorbs ion spectrum of chlorophyll

Answer 21

Parallels

Question 22

Light-dependent reactions occur in units called _____, which are embedded in the ______

Answer 22

Photosystems

Thylakoid membranes

Question 23

Photosystems contain _____, _____, and _____

Answer 23

Chlorophyll molecules
Accessory pigments
Associated electron acceptors

Question 24

200-300 pigment molecules are arrange in group, which associated proteins and enzymes, which absorb light energy

Answer 24

Antenna complexes

Question 25

The absorbed energy is passes directly between groups of pigment molecules until it reaches the _____, which is made up of a few special chlorophyll A molecules

Answer 25

Reaction center

Question 26

In photosystems _____, chlorophyll absorbed light most strongly at 700 nm

Answer 26

I

Question 27

In photosystems _____, chlorophyll A absorbed light most strongly at 680 nm

Answer 27

II

Question 28

The absorption peak shift is due to the interaction of different ____ with the chlorophyll A molecule

Answer 28

Proteins

Question 29

______ describes the 1-way, linear flow of electrons from H2O to NADP+, which occurs during the light-dependent reactions, which involves both PSI and PSII

Answer 29

Non-cyclic electron transport

Question 30

Ultimate electron source is ______

Answer 30

H2O

Question 31

Ultimate electron acceptor

Answer 31

NADP+

Question 32

______ is the production of ATP in photosynthesis, using energy originally derived from a photon of light with chemiosmosis prod=voiding the immediate energy

Answer 32

Photo phosphorylation

Question 33

For every 2 electrons entering the noncyclic pathway, _____ ATP molecules are formed and _____ NADP+ is reduced to NADPH

Answer 33

2

1

Question 34

In the 2nd light independent phase of photosynthesis, termed carbon fixation, energy obtained from ATP and NADPH is used to _____ from CO2 in the ______

Answer 34

Synthesize organic chemicals

Stroma of the chloroplasts

Question 35

The ______ is the sequence of reactions in carbon fixation

Answer 35

Calvin Cycle

Question 36

Highly reactive phosphorylated 5C compound _______, reacts with a molecule of CO2

Answer 36

Ribulose biphosphate (RuBP)

Question 37

An unstable 6C compound breaks down to 2 ______

Answer 37

Phosphoglycerate (3C) PGA molecules during the CO2 uptake phase

Question 38

Photosynthesis takes place in the _____ in prokaryotes

Answer 38

Plasma membrane

Question 39

Carbohydrate synthesis occurs in the _____

Answer 39

Stroma

Question 40

______ absorb light of different wavelengths and pass the absorbed energy to chlorophyll A

Answer 40

Accessory pigments

Question 41

Both spectra peak at the same wavelengths but do not match exactly because of _____, because there pigments contribute energy for photosynthesis, O2 production increases

Answer 41

Accessory pigments