Photosynthesis

Question 1

Chlorophyll A & B absorb what wavelengths of light best ?

Answer 1

Blue
Violet
Red

Question 2

Plants “looks” green because ?

Answer 2

Chlorophyll reflects green light

Question 3

Organisms like green plants that make their own food using energy from the sun are called ?

Answer 3

Autotrophs

Question 4

What is the gel filled space inside the chloroplast surrounding thylakoid stacks called ?

Answer 4

Stroma

Question 5

What contains chlorophyll and absorbs light energy during what reaction ?

Answer 5

Photosystems 1 & 2 absorb light energy during light dependent reactions

Question 6

What space is found during the light dependent reactions when H+ ions build up when what splits ?

Answer 6

Thylakoid space and when Water molecules are splits

Question 7

Where are the enzymes for the light dependent reactions found in ? While the calvin cycle happens in what ?

Answer 7

Reactions are found in the THYLAKOID MEMBRANE while the Calvin Cycle happens in the STROMA

Question 8

What are the stacks found inside chloroplasts ?

Answer 8

Grana

Question 9

Who used a bell jar, candle, and plant to show plants give off something that candles need to burn ?

Answer 9

Joesph Priestly

Question 10

Carbon and oxygen from what ends up as a part of what molecule following the Calvin Cycle ?

Answer 10

Carbon Dioxide

Glucose Molecule

Question 11

What is made during which light reaction and carries energy and high energy electrons that are used during the Calvin Cycle to produce what like glucose ?

Answer 11

ATP and NADPH are produced during Light Dependent reactions

Sugars like glucose

Question 12

What gas in the O in H2O is given to the atmosphere when water is split during the light dependent reactions?

Answer 12

Oxygen gas

Question 13

What proteins in living things help chemical reactions happen ?

Answer 13

Enzymes

Question 14

What is used to transfer electrons along the membrane from Photosystems 1 & 2 ?

Answer 14

Electron Transport System

Question 15

What is caused when the movement of H+ ions from the thylakoid space across the membrane and into the stroma to spin and produce ATP ?

Answer 15

ATP synthase

Question 16

Who showed that plants only produce oxygen when exposed to light ?

Answer 16

Jan Ingenhousz

Question 17

Who carefully measured the mass of a growing plant and concluded the increase came from water ?

Answer 17

Jan Van Helmont

Question 18

What are orange and yellow pigments called to absorb different wavelengths of light and help chlorophyll use more of the sun’s energy ?

Answer 18

Carotenoids

Question 19

What is ATP ?

Answer 19

releases energy stored into high energy

Question 20

What is a thylakoid?

Answer 20

flattened stacks that are the place of light reactions

Question 21

What is NADP+ ?

Answer 21

Temporarily stores energized electrons produced during light reactions

Question 22

What is ATP synthase?

Answer 22

Large proteins that uses energy from H+ ions to bind ADP and a
phosphate group together to produce ATP

Question 23

What is the Calvin Cycle ?

Answer 23

Two stages of photosynthesis, its a series of chemical reactions that occur in the stroma of chloroplasts, produced by light reactions to make the energy rich sugar molecule

Question 24

Difference between Autotrophs and Heterotrophs

Answer 24

Autotrophs - makes their own food/energy

Heterotrophs - gets food from other organisms

Question 25

Relationship between pigments and chlorophyll

Answer 25

Pigments absorb light and chlorophyll is the green pigment

Question 26

How is the light dependent reactions different from the Calvin Cycle

Answer 26

Light dependent uses energy from the sun to produce ATP and NADP and Oxygen gas Calvin Cycle doesn't require light and uses ATP and NADPH to produce glucose

Question 27

What compounds are formed from Carbon dioxide in the Calvin cycle

Answer 27

Sugars Lipids Amino Acids etc

Question 28

Molecules that collect light energy

Answer 28

Pigments