Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

High School Biology > Photosynthesis > Flashcards

Photosynthesis Flashcards

(58 cards)

Start Studying
1
Q

Define anabolic

A

Small molecules combined (ex:photosynthesis)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Define endergonic

A

Used to describe something that stores energy (ex: photosynthesis)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where does the light dependent reaction occur?

A

In the thylakoid membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where does the calvin cycle occur?

A

In the stroma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the 2 types of electron flow that occur in the light dependent reaction?

A

The cyclic electron flow and the noncyclic electron flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is another name for photosystem 1?

A

P700

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is another name for photosystem 2? What occurs in it (hint: a type of electron flow)

A

P680 and the noncyclic electron flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What makes up ATP?

A

The nitrogen base adenine, pentose (5c) sugar ribose, and 3 phosphate groups

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where does photosynthesis occur?

A

In the thylakoid membrane, the stroma, and mesophyll cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a stack of thylakoid membranes called?

A

A granum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Where are chlorophyll molecules located?

A

In the thylakoid membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does chlorophyll have in its center?

A

Mg+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What type are plants that do photosynthesis?

A

They’re autotrophs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is a stroma and where is it found?

A

It’s a pore in a plant’s cuticle through which water vapor and gases (CO2 and H2O) are exchanged between the plant and the atmosphere. It’s found on the underside of leaves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What do chlorophyll pigments do and how?

A

Chlorophyll pigments harvest energy (photons)by absorbing certain wavelengths and this makes plants green because the green wave length is reflected, not absorbed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What colors do chlorophyll absorb the best?

A

Blue-violet and red light best

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are carotenoids?

A

Pigments that are present in plants and are either red, orange, or yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is oxidation?

A

It’s a type of redox reaction and it’s the loss of e-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is reduction?

A

Reduction is a type of redox reaction and it’s the gain of e-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the redox reaction?

A

It’s the transfer of one or more electrons from one reactant to another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the chemical equation for photosynthesis

A

6CO2+6H2O&raquo_space;»>light»»> C6H12O6+ 6O2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the ultimate energy source for all life on earth?

A

Sunlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Where do plants store energy?

A

In the chemical bonds of sugars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

How is chemical energy released during cellular respiration?

Study These Flashcards
A

It’s released as ATP

25
What is the last phosphate group in ATP bonded with?
A high energy chemical bond
26
What will breaking of the last phosphate bond from ATP do?
It will release energy for cells to use, form ADP, and produce a free phosphate group
27
What does ATP look like when it only has three phosphates?
A-P-P-P
28
What is the process of breaking of the last phosphate bond from ATP?
Phosphorylation
29
What are the products of the light reaction?
ATP and NADPH
30
What are the products of the Calvin cycle?
ADP, glucose, and NADP+
31
What is another name for the Calvin cycle?
Carbon fixation, or C3 fixation
32
What photosystem does the cyclic electron flow use?
Photosystem 1 (P700)
33
What does the cyclic electron flow generate?
ATP
34
Where do both the cyclic and noncyclic electron flows occur?
In the thylakoid membrane because they are both part of the light reaction
35
What photosystems does the non-cyclic electron flow use?
Photosystem 2 (P680) and photosystem 1 (P700)
36
What chain does both the noncyclic and cyclic electron flows use?
The electron transport chain (ETC)
37
What does the noncyclic electron flow generate?
02, ATP, and NADPH
38
ADP+P= ?
ADP+P= ATP
39
NADP+ +H =?
NADPH
40
Oxygen comes from the splitting of what?
H2O
41
What replaces the high–energy electrons that chlorophyll lost to the electron transport chain? (During the light reaction)
The energized electrons from water
42
What is released into the air when the light dependent reaction happens?
Oxygen
43
Where does the hydrogen go to during the light dependent reaction?
It stays in the thylakoid membrane after energy from electrons is used to transport them from the stroma into the inner thylakoid space
44
What re-energizes the electrons towards the end of the electron transport chain (in photosystem 1)?
Pigments in photosystem one uses energy from light to re-energize the electrons
45
What picks up the high-energy electrons and what does it become?
After the electrons become very high energy from the pigments in photosystem one, NADP+ then picks up these high-energy electrons along with H+ ions to become NADPH
46
What binds ADP and a phosphate group together and what do they produce?
ATP synthesis binds ADP and phosphate group together to produce ATP (ADP + P > ATP)
47
Approximately what percentage of plants on earth are C3 plants?
Around 80% of plants on earth are C3 plants, which means they use the Calvin cycle
48
Where does the Calvin cycle occur?
It occurs in the stroma
49
What's the analogy used to compare the stroma to the chloroplast?
Stroma is to chloroplast as cytoplasm is to cells
50
What does the Calvin cycle use as energy instead of light?
It uses ATP and NADPH from the light reaction as energy
51
What else besides ATP and NADPH does the Calvin cycle use?
It uses CO2
52
How many turns of the Calvin cycle does it take to produce 1 glucose molecule?
It takes 2 turns
53
How many ATP and NADPH does the Calvin cycle use in 6 turns?
It uses 18 ATP and 12 NADPH
54
What combines with what to create 12 three-carbon molecules? (In the Calvin cycle)
Six carbon dioxide molecules enter the cycle from the atmosphere and combine with 6 five-carbon molecules to create 12 three-carbon molecules
55
How many of what kind of molecules are removed from the Calvin cycle?
Two of the 12 three–carbon molecules are removed from the cycle
56
What are the 2 three-carbon molecules that are removed from the Calvin cycle used for?
There used to produce sugars, lipids, amino acids, and other compounds
57
What are the 10 remaining three-carbon molecules converted into? What are they used for? (All during the Calvin cycle)
The 10 remaining three–carbon molecules are converted back into the 6 five–carbon molecules, which are used to begin the next cycle
58
Define heterotroph
An organism that gets its energy from the food eats. Plants that participate in photosynthesis do not fall under this category

High School Biology (23 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions