Plant Pigments

Question 1

What causes plants to have colors?

Answer 1

The interaction between light and pigments

Question 2

Electromagnetic energy, and can behave as a wave and a particle

Answer 2

Light

Question 3

Types of electromagnetic waves (spectrum)

Answer 3

Radio
Micro
Infrared
Visible light
Ultraviolet
X-ray
Gamma-ray

Question 4

A form of radiation that travels in the universe

Answer 4

Electromagnetic waves

Question 5

A travelling distance transporting energy from one place to another

Answer 5

Wave

Question 6

A portion of matter

Answer 6

Particle

Question 7

Components of Waves

Answer 7

Frequency
Wavelength
Amplitude

Question 8

Distance of a wave from another

Answer 8

Wavelength

Question 9

Distance from the maximum and minimum heigth of a wave

Answer 9

Amplitude

Question 10

Total number of waves from a cycle

Answer 10

Frequency

Question 11

λ

Answer 11

Wavelength

Question 12

f

Answer 12

Frequency

Question 13

A

Answer 13

Amplitude

Question 14

v

Answer 14

Velocity

Question 15

λ = v/f

Answer 15

Relationship between Wavelength, Amplitude, and Velocity

Question 16

Smaller wavelength and more frequency means

Answer 16

Higher energy (Inversely Proportional)

Question 17

Longer wavelength and less frequency means

Answer 17

Lower Energy (Inversely Proportiona)

Question 18

Higher amplitude higher frequency

Answer 18

Higher Energy (Inversely Proportional)

Question 19

Lower Amplitude & lower frequency

Answer 19

Less Energy (Directly Proportional)

Question 20

Specific wavelength needed to drive photosynthesis & is allowed in the atmosphere to support life

Answer 20

400nm - 700nm

380nm - 740nm (More specific) - Visible Light

Question 21

When light meets matter it is…

Answer 21

Reflected
Absorbed
Transferred

Question 22

The reflection & transmission of light yields

Answer 22

Color

Question 23

What happens when a specific color is not seen?

Answer 23

It is absorbed

Question 24

What is the result if all light is absorbed?

Answer 24

Black

Question 25

What color occurs when all light is reflected

Answer 25

White

Question 26

What happens when the wavelength of light received does not match the receiver?

Answer 26

It is either reflected or transferred, not absorbed

Question 27

Without specific pigments, what would happen to plants?

Answer 27

Plants wouldn't have the ability to do photosynthesis Energy would be less

Question 28

Why is color important for flowers?

Answer 28

It atracts pollenators

Question 29

Types of Pigments

Answer 29

Chlorophyll Carotenoids Anthocyanine Betalains

Question 30

- Most important in driving photosynthesis - Green in appearance

Answer 30

Chlorophyll

Question 31

- Found in chromoplast (another plastid) - Reflects yellow, orrange, and red - Absorbs blue and green

Answer 31

Carotenoid

Question 32

- Water soluble - Reflects blue, purple, red

Answer 32

Anthocyanine

Question 33

- Example is dragonfruit - Reflects red and yellow

Answer 33

Betalains

Question 34

Pigments that allows plants to do photosynthesis

Answer 34

Photosynthetic pigments

Question 35

Why do photosynthethic pigments have conjugated double bonds?

Answer 35

To allow greater exposure of electrons, allowing them to become excited

Question 36

Parts of the chlorophyll

Answer 36

Head Group Hydrocarbon tail (phytol)

Question 37

Composed of Hydrophillic porphyrin

Answer 37

Head Group

Question 38

The anchor and contains physol

Answer 38

Tail

Question 39

- The most important photosynthetic pigment - Photosynthetic plants - Present due to cyanobacteria

Answer 39

Chlorophyll a

Question 40

- Helps chlorophyll a - Found in higher plants - Green Algea

Answer 40

Chlorophyll b

Question 41

Allows for more energy and photoprotection

Answer 41

Accessory Pigments

Question 42

Are specific wavelengths necessary for photosynthesis?

Answer 42

Yes

Question 43

What happens when the energy is insufficient or capped for the specific wavelength needed for photosynthesis?

Answer 43

Photosynthesis does not occur

Question 44

Which wavelengths allows for greater light absorption and rate of photosynthesis?

Answer 44

Between 400nm - 500nm & 600nm - 700nm

Question 45

A graph that describes the degree of absorptions of light vs wavelength

Answer 45

Absorption spectrum

Question 46

Is used to conclude effectiveness of photosynthesis under a specific wavelength

Answer 46

Action spectrum

Question 47

What is the relationship between the absorption and action spectrum?

Answer 47

Directly proportional

Question 48

Is used to measure the pigments ability to absorb light under a specific wavelength Data is then polotted into graphs

Answer 48

Spectrophotometer

Question 49

Graphs made by the spectrophotometer

Answer 49

Absorption (spectrometer) & Action Spectrums

Question 50

Two types of photosynthetic pigments

Answer 50

Chlorophyll & Carotenoids