Bio Exam 3 Chap 8

Front 1

Definition of photosynthesis

Back 1

Process that converts solar energy in chemical energy of carbohydrates

Front 2

What are autotrophs?

Back 2

Organisms that do photosynthesis

Front 3

What are heterotrophs?

Back 3

Organisms that eat other organisms

Front 4

What kingdom are all autotrophs?

Back 4

Plantae

Front 5

What kingdom are all heterotrophs?

Back 5

Animalia

Front 6

What kingdom besides animalia are heterotrophs?

Back 6

Fungi

Front 7

What allows photosynthetic organisms to capture solar energy?

Back 7

Pigments

Front 8

What pigment do most photosynthetic organisms possess that makes them appear green?

Back 8

Chlorophyll

Front 9

What common pigment appears orange/yellow?

Back 9

Carotenoids

Front 10

Where does photosynthesis occur in plants, unspecifically?

Back 10

Green parts, leaves

Front 11

Where does photosynthesis occur in plants, unspecifically?

Back 11

Green parts, leaves

Front 12

What are the raw materials of photosynthesis

Back 12

Water and CO2

Front 13

What are the openings in leaves where CO2 passes called?

Back 13

Stomata

Front 14

How does water get into plants?

Back 14

Taken up by roots and transported by veins

Front 15

How is light energy absorbed in plants?

Back 15

By chlorophyll and other pigments in the thylakoids

Front 16

Where in plants, specifically, does photosynthesis happen?

Back 16

Chloroplasts

Front 17

What membrane do chloroplasts have?

Back 17

Double membrane

Front 18

What are stroma and where are they found?

Back 18

Fluid-filled sacs in chloroplasts

Front 19

What is grana?

Back 19

Stacks of thylakoids

Front 20

What are the 2 sets of photosynthesis reactions?

Back 20

1) light reaction (light dependent)

2) Calvin cycle (light independent)

Front 21

What happens in the light reaction and where does it occur?

Back 21

Solar energy is captured, in thylakoid membrane

Front 22

What does Calvin cycle reaction do and where does it occur?

Back 22

Converts carbon dioxide to a carbohydrate, in the stroma

Front 23

What part of the electromagnetic spectrum do plants use?

Back 23

White or visible light

Front 24

Why do leaves appear green?

Back 24

Plants absorb blue violet and red light, not green. Green is reflected

Front 25

What is the order of photo systems in photosynthesis?

Back 25

1) photosystem II

2) photosystem I

Front 26

What is split to make electrons that flow to form ATP & NADPH

Back 26

H2O slips into H+ and O2

Front 27

In PS II energy is concentrated in ____.

Back 27

Reaction center

Front 28

What happens to electrons in PS II?

Back 28

Become energized and move to electron acceptor

Front 29

What does PS I form?

Back 29

NADPH

Front 30

Is any NADPH produced in PS I?

Back 30

No, only PS II

Front 31

What acts as a reservoir for hydrogen ions?

Back 31

Thylakoid space

Front 32

What fuels the Calvin cycle?

Back 32

ATP and NADPH from light reactions

Front 33

Definition of Calvin cycle

Back 33

Series of reactions that use CO2 from the atmosphere to produce carbohydrates

Front 34

What 3 things does the Calvin cycle include?

Back 34

1) carbon dioxide fixation

2) carbon dioxide reduction

3) RuBP production (regeneration)

Front 35

What is the most abundant enzyme on earth?

Back 35

RuBP Carboxylase

Front 36

What 3 things can G3P form?

Back 36

-glucose

-sucrose

-starch & cellulose

Front 37

What is C3 photosynthesis for?

Back 37

Wheat, rice, oats

Front 38

What is C4 photosynthesis used for?

Back 38

Sugarcane and corn

Front 39

What is CAM photosynthesis for?

Back 39

Cacti, succulents

Front 40

Which photosynthesis is at night and why?

Back 40

CAM, plants that grow in the dessert close stomata during the day to save water

Front 41

What the differences between photosynthesis and cell respiration?

Back 41

-both plant and animals carry out cell. Resp., but only plants carry out photosynthesis

-cell resp breaks down glucose, photosyn builds it

-cell resp uses O2 and gives off CO2, photosyn uses CO2 and gives of O2