Photosynthesis

Question 1

What is the term for the ability to perform work?

Answer 1

Energy

Question 2

Animals that cannot make their own food are called?

Answer 2

Heterotrophs or consumers

Question 3

Most organisms use an energy storage molecule called_________ ?

Answer 3

Adenosine triphosphate ATP

Question 4

Light of different colors is different in_____ and ______

Answer 4

Wavelength and frequency

Question 5

During photosynthesis, a reduction reaction ______ to a molecule.

Answer 5

Adds electrons

Question 6

In order to reduce something what has to occur?

Answer 6

Oxidation

Question 7

Oxidation is a process that makes a molecule lose what?

Answer 7

Electrons

Question 8

Disk shaped structures with photosynthetic pigments are know as?

Answer 8

Thylakoids

Question 9

The process by which autotrophs convert sunlight into energy is called?

Answer 9

Photosynthesis

Question 10

A molecule that can absorb certain wavelengths and reflect others is a?

Answer 10

Pigment

Question 11

What are the most common group of photosynthetic pigments in plants?

Answer 11

Chlorophyll

Question 12

Stroma are gel like Matrix that surrounds the ?

Answer 12

Thylakoid

Question 13

Photosynthesis occurs in two stages called?

Answer 13

Light reactions and dark reactions

Question 14

Plants that use only the Calvin cycle for photosynthesis are called?

Answer 14

C3

Question 15

What substances do autotrophs or producers use to make food?

Answer 15

Water, carbon dioxide, sunlight

Question 16

The addition of an electron to an atom or a Molecule is called?

Answer 16

Reduction

Question 17

The loss of an electron to an atom or a molecule is called?

Answer 17

Oxidation

Question 18

Organisms that can produce their own food are called?

Answer 18

Autotrophs or producers

Question 19

An important waste product of photosynthesis is?

Answer 19

Oxygen

Question 20

Photosynthesis occurs in what organelle of plants and algae?

Answer 20

Chloroplast

Question 21

The thylakoids are surrounded by a gel like matrix called?

Answer 21

Stroma

Question 22

An object that absorbs all colors appears what color?

Answer 22

Black

Question 23

What are the light collecting units of the chloroplast?

Answer 23

Thylakoid membrane

Question 24

Carbon fixing reactions occur in a pathway called the?

Answer 24

Calvin cycle

Question 25

Chlorophyll reflects and transmits what color?

Answer 25

Green

Question 26

An object that reflects all colors appears what color?

Answer 26

White

Question 27

Folded thylakoids that resemble stacks of pancakes are called?

Answer 27

Granum

Question 28

The pigments that absorb violet, blue, and red light are?

Answer 28

Chlorophyll A and B

Question 29

The enzyme that adds a phosphate group to ADP is?

Answer 29

ATP Synthase to form ATP

Question 30

What do we call the component colors of white light?

Answer 30

Visible spectrum

Question 31

What clusters of pigments are called

Answer 31

Photo systems

Question 32

A five carbon carbohydrate in the Calvin cycle

Answer 32

Ribulose Dyphosphate

Question 33

A three carbon molecule in the Calvin cycle

Answer 33

PGAL

Question 34

A series of linked chemical reactions is called a

Answer 34

Biochemical reaction

Question 35

The pigments that absorb blue and green light are called

Answer 35

Carotenoid

Question 36

The oxygen atoms in the oxygen gas produced in photosynthesis come from

Answer 36

Photo system 2

Question 37

Where does the energy required for the Calvin cycle originate?

Answer 37

From ATP and ADP produced by the light reactions

Question 38

Protons are move into the thylakoids using energy from

Answer 38

Electrons in a transport train

Question 39

At the end of photosystem 1 transport chain, electrons combine with To form

Answer 39

NADP+. NADPH

Question 40

Carbon atoms are fixed into organic compounds in the

Answer 40

Calvin cycle

Question 41

To produce the same amount of carbohydrate C4 plants require less________than C3 plants

Answer 41

Carbon dioxide

Question 42

Where in the chloroplast do the reactions of the Calvin cycle occur?

Answer 42

Stroma

Question 43

What product of the light reactions of photosynthesis is released and does not participate further in photosynthesis?

Answer 43

Oxygen

Question 44

Which environmental factor will cause a rapid decline in the photosynthesis rate if the factor rises above a certain level?

Answer 44

Light intensity and temperature

Question 45

Accessory pigments differ from chlorophyll A in that they are ___ directly _____involved in the ______of photosynthesis

Answer 45

Not. Light reactions

Question 46

Which of the colors absorbed by chlorophyll is least visible?

Answer 46

Blue

Question 47

What colors are the least absorbed but most seen?

Answer 47

Green and yellow

Question 48

What is the difference between catabolism and anabolism?

Answer 48

Catabolism breaks down and anabolism builds

Question 49

Explain the ecological pyramid

Answer 49

It starts with the producers that have 100% energy and then the pyramid goes up multiplying by 10. The primary consumers have 10%, the secondary 1% and the tertiary .1%

Question 50

The scientist who concluded that most of the mass of a plant came from water was who?

Answer 50

Van Helmont

Question 51

What is the photosynthesis formula ?

Answer 51

Sunlight+6CO2+6H2O=Sugars+ 6O2

Question 52

What is the difference between endothermic and exothermic?

Answer 52

Endothermic absorbs energy and is anabolic | Exothermic releases energy and is catabolic

Question 53

Describe light reactions

Answer 53

They require light to work. It reduces NADP+ to NADPH . Occurs in the thylakoid.Uses photo system 1 and 2. It oxidizes water. Creates ATP

Question 54

The electrons essential to the oxygen production process in the light reactions are taken from?

Answer 54

Water

Question 55

The energy stored by photosynthesis is released by?

Answer 55

Light reactions

Question 56

Where in the chloroplast do the light reactions take place?

Answer 56

Granum

Question 57

What is produced at the end of photosystem one

Answer 57

ATP and NADPH

Question 58

Where does the energy of the Calvin cycle come from?

Answer 58

ATP and NADPH

Question 59

Explain why water molecules are so important in photosynthesis

Answer 59

It's the source of hydrogen for the sugars

Question 60

Explain dark reactions AKA Calvin cycle.

Answer 60

Requires ATP and NADPH from photosystem 1 which are used to reduce carbon. Occurs in the stroma. The output is fats carbs and proteins. Ribulose dyphosphate is recycled