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Flashcards in Test 3 Deck (194)
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1

The outer envelope of chloroplast contains several kinds of ______, mitochondria have one.

porins

2

The inner envelope membrane of chloroplast is _______ ________, meaning it (does/does not) allow fluid to pass through.

highly impermeable, does not

3

The thylakoid membrane of chloroplast is flattened into sacs and the space inside is called the _____.

Lumen

4

The __________ _________ of chloroplast contains the photosystems, ETC, and ATP synthase.

thylakoid membrane

5

__________ contain a single outer membrane and the inner membrane has cristae joined to it at the organelle boundary.

Mitochondria

6

The ________ of chloroplast contains the Calvin cycle, circular ds DNA, and ribosome.

stroma

7

The ________ of chloroplast contains a high concentration of protons.

lumen

8

Photosynthesis is the reverse of _______.

Respiration

9

Respiration is the reverse of ______.

photosynthesis

10

________ reduces O2 to water while _________ oxidizes water to O2.

Respiration, photosynthesis

11

____________ reactions occur on membranes where light energy is absorbed and stored in ATP and NADPH.

Light-dependent

12

___________ reactions use energy from ATP and NADPH to synthesize carbohydrates.

Light-independent

13

Light-independent reactions are also known as the _____ ______. However, this is wrong because it can happen in the light also. It is also call _____ _____. This is more accurate.

dark reactions, carbon fixing

14

____________ are the primary photosynthetic pigments.

Chlorophylls

15

What is the structure of chlorophylls?

porphyrin ring + phytol ring

16

Chlorophylls absorb ___ and ____ light while reflecting _____ and _____ light.

blue/red, green/yellowish

17

_____ are secondary light collectors. They draw excess energy from _____ preventing production of singlet oxygen.

Carotenoids, chlorophyll

18

What is the structure of carotenoids?

a linear system of double bonds (C=C)

19

Carotenoids absorb _____ and _____ light. They reflect ____, ______, and _____ light.

blue/green, red/orange,yellow

20

Chlorophylls and carotenoids are found in _____.

chloroplasts

21

Photons with shorter wavelengths have _____ energy.

greater

22

Photons with _____ wavelengths have lower energy.

longer

23

The number of orbitals an electron can exist in is limited, so ______________________________.

only certain wavelengths of light can be absorbed

24

Energy in photosynthetic units can only pass to pigments that accept ____ or _____ _____.

equal or longer wavelengths/lower energy photons

25

_____________ ________ _______ pass energy through the photosynthetic units to the reaction center.

Light-harvesting antenna pigments

26

Where are the photosystems found in chloroplasts?

thylakoids

27

Which of the following would you not expect to find in the stroma?

A high concentration of protons.

28

Which statement contrasting photosynthesis and respiration is incorrect?

Photosynthesis uses an ETC, while respiration does not.

29

Non oxygenic photosynthesis uses _________ as the reducing agent and ________ as the oxidizing agent.

H2S: CO2.

30

The light-independent reactions of photosynthesis occur _________ and produce ________.

in the stroma, carbohydrates.