Photosynthesis (Lecture 7)

Question 1

Conversion of light energy to chemical energy and the storage of that energy in the form of carbon based molecules (sugars)

Answer 1

Photosynthesis

Question 2

Organisms that use light as an energy source to produce glucose

Answer 2

Photoautotrophs

Question 3

Ingredients for Photosythesis

Answer 3

6 CO2 - Carbon Dioxide
12 H2O - Water

Question 4

Products of Photosynthesis

Answer 4

C6 H12 O6 - Glucose
6 O2 - Oxygen
6 H2O - Water

Question 5

Longer Wavelengths

More or Less energy?

Answer 5

Less Energy

Question 6

Shorter Wavelengths

More or Less Energy?

Answer 6

More Energy

Question 7

Molecules that absorb some wavelengths of light while reflecting others

Answer 7

Pigments

Question 8

Which color pigment reflects all wavelengths of light and absorbs none?

Answer 8

White Pigments

Question 9

Which color pigment absorbs all wavelengths of light and reflects none?

Answer 9

Black Pigments

Question 10

Which color of pigments are the primary pigments of most plants and algae

Answer 10

Green Pigments

Question 11

The name of the primary green pigment for plants and algae

Answer 11

Chlorophylls

Question 12

The name of the red, orange, and yellow accessory pigments of most plants and algae

Answer 12

Carotenoids

Question 13

Cells in the middle of a leaf that contain chloroplasts and therefore photosynthesize

Answer 13

Mesophyll Cells

Question 14

Pores in the lower epidermis that allow for the intake of carbon dioxide and the release of oxygen

Answer 14

Stomata

Question 15

Cells that surround the stomata and therefore regulate the gas exchange by changing the diameter of the stomata

Answer 15

Guard Cells

Question 16

Single cell later covering on the top and on the bottom of a leaf

Answer 16

Epidermis

Question 17

Layer of wax produced by the epidermis that prevents against water loss

Answer 17

Cuticle

Question 18

Double membrane covering the chloroplast

Answer 18

Chloroplast envelope

Question 19

Disk-shaped structures that are covered by photosynthetic pigments

Answer 19

Thylakoid disks

Question 20

A stack of thylakoid disks

Answer 20

Granum

Question 21

The energy-rich fluid of the chloroplast

Answer 21

Stroma

Question 22

What are the Light Reactions (or Phosphorylation) in Photosynthesis? Where do they occur?

Answer 22

Photosystem II
Electron Transport Chain
Photosystem I

The occur along the Thylakoid Disks

Question 23

What are the Dark Reactions in Photosynthesis? Where do they Occur?

Answer 23

Calvin Cycle
Benson Cycle

Occurs in the stroma

Question 24

A group of pigment molecules in an integral protein of a Thylakoid Membrane that trap a specific wavelength of light

Answer 24

A Photosystem

Question 25

Where is light energy collected in Photosystems transferred to?

Answer 25

Available electrons

Question 26

This Photosystem includes Reactions Center P680

Answer 26

Photosystem II

Question 27

During which Photosystem does light energy cause water molecules to split into Oxygen, H+, and elecrons?

Answer 27

Photosystem II

Question 28

What receives electrons from Photosystem II in a process similar to what is seen in Anaerobic Cellular Respiration?

Answer 28

The Electron Transport Chain

Question 29

The electrons in the Electron Transport Chain release their energy in through a series of proteins. What does this allow the Synthesis of? Where will it be released?

Answer 29

The synthesis of ATP It will be released in the Stroma

Question 30

This Photosystem includes reactions center P700

Answer 30

Photosystem I

Question 31

The light energy absorbed from this photocenter allows for the re-energizing of the electrons that are received from the Electron Transport Chain

Answer 31

Photosystem I

Question 32

After being re-energized in Photosystem I, the electrons are passed to these temporary electron carrier molecules

Answer 32

NADPH

Question 33

What three products are produced during Light Reactions (Photophosphorylation)

Answer 33

Oxygen, ATP, and NADPH

Question 34

Where does the Calvin Cycle occur?

Answer 34

The Stroma

Question 35

What two ingredients does the Calvin Cycle require that the Light Reactions produce?

Answer 35

ATP and NADPH

Question 36

What single ingredient does the Calvin Cycle require that is NOT produced by the Light Reactions?

Answer 36

Carbon Dioxide CO2

Question 37

What is the goal of the Calvin Cycle?

Answer 37

The produce Glucose