Photosynthesis Flashcards

1
Q

Light Dependant Reactions require energy from____

A

Light(Sun)

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2
Q

Photosynthesis takes place in the _______ of the chlorophyll

A

Thylakoid

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3
Q

LDR requires three things__________

A

Sunlight, Chlorophyll, Water

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4
Q

Photosynthesis is broken into two steps ______ and _______

A

Photosystem II and Photosystem I

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5
Q

The LDR in Photosystem II starts when sunlight hits the _______

A

Chlorophyll

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6
Q

(PS II)when sunlight hits the chlorophyll it causes it to lose__________

A

2 electrons

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7
Q

High energy from PS II move through an___________

A

Electron Transported Chain

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8
Q

Light absorbed by PS II is used to ___________

A

Split water

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9
Q

(PS II)When water is split it splits into___________

A

Hydrogen, Electrons, Oxygen

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10
Q

(PS II)The Oxygen given off from Photosynthesis is a _________

A

Waste Product

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11
Q

The electrons are used to ______ electrons lost from chlorophyll in PS II

A

Replace

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12
Q

(PS II)Hydrogen ions build up on the inside of the _________

A

Thylakoid Membrane

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13
Q

(PS II)Hydrogen ions pass through the __________ which produces a large amount of energy

A

ATP Synthase

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14
Q

(PS II)The large amount of energy produced is used to make __________

A

ATP molecules

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15
Q

(PS I) Light is absorbed by Chlorophyll causing it to ___________

A

Lose Electrons

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16
Q

(PS I) Thing that picks up the electrons lost and hydrogen ions and forms NADPH

A

NADP

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17
Q

(PS I)Electrons pass through the ETC from PS II to PS I, more ______ ions are pumped across the membrane

A

Hydrogen

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18
Q

(PS I)As hydrogen ions are pumped across the membrane, it increases the __________________ used to make ATP in PS II

A

Concentration Gradient

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19
Q

Electrons lost by chlorophyll in PS I are replaced by Electrons from _______

A

PS II

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20
Q

The replacement of electrons from PS I to PS II is called the _________ pathway of ATP and NADPH

A

noncyclic

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21
Q

Light independent Reactions take place in the _____ of the chloroplast

A

Stroma

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22
Q

Light Independent Reactions are also called_________

A

Calvin Cycle

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23
Q

Light Independent reactions use _______ and _______ which were made in Light Dependent Reactions

A

ATP and NADPH

24
Q

Light Independent Reactions also use

25
CO2 goes into the Carbon Dioxide Fixation Step from the
Atmosphere
26
Fixed means
Attached to something
27
Rubisco is______________
Enzyme: Helps Attach Carbon to RuBP
28
_____ is reduced, gained an electron
G3P
29
Glucose is the
Final Product
30
Intermediate Products-
Made during reactions but is used in the same reaction
31
Step 1- Carbon Fixation, Six molecules of CO2 combine with ________ with the help of the enzyme ______
RuBP, and Rubisco`
32
Step 1- Carbon Fixation forms twelve molecules of ______
PGA
33
Step 2- Reduction, PGA combines with energy from_____
ATP
34
The molecule NADPH adds Hydrogen and Electrons to form twelve molecules of_____
G3P
35
Step three- Regeneration, Ten of the Twelve molecules of G3P are used to make _________ after energy from ATP is added
RuBP
36
Step three- Regeneration, The 2 other molecules of G3P are used to make _______ which is the final product
Glucose
37
Leaf structure- What is a Mesophyll
Middle of the leaf, tightly packed cells are where sunlight mainly hits, where photosynthesis occurs
38
Leaf structure- What is a Guard Cell
Controls the opening and closing of stomata under the leaf
39
Leaf structure- what is a Cuticle
The waxy coating on the top of the leaf prevents water loss
40
Leaf structure- What arte the Bundle Sheath Cells
Cells that surround the vascular bundle
41
Leaf structure- What are the veins
Xylem- Water moves up the plant Phloem- Glucose moves down the plant
42
Leaf structure- What is the Epidermis
The top layer of the lead, the outer layer
43
Leaf structure- When water leaves the guard cell the stomata is _____
Closed
44
Leaf structure- When water enters the guard cell the stomata is____
Open
45
The purpose of Stomata is to_________
Control what goes in and out of the cell
46
When stomata is closed_________ cannot be exchanged
O2 and CO2
47
O2 builds up inside the______ when its hot or cold
Leaf
48
______ attaches to O2 instead of CO2 when its hot or cold
Rubisco
49
Hot or cold temps can slow the
Calvin Cycle
50
C3 plant makes ____ first
PGA
51
C4 and CAM- Both use a different enzyme when the stroma is_____
Closed
52
Fixes Co2 into oxaloacetate make before ____
PGA
53
Plant type C4
Corn, Sugar cane
54
Plant type CAM
Succulents, Cactus, Pineapple
55
CAM: During the night the stomata is
open
56
CAM: During the day the stomata is
Closed