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BYU11101 > Photosynthesis > Flashcards

Photosynthesis Flashcards

1
Q

The oldest known fossils

A

Stromatolites

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2
Q

Serial endosymbiosis suggests

A

Mitochondria developed before plastids

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3
Q

The process that converts solar energy into chemical energy within chloroplasts

A

Photosynthesis

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4
Q

Sustain themselves without eating anything derived from other organisms

A

Autotrophs

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5
Q

The interior tissue of the leaf is called the

A

mesophyll

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6
Q

Where are chloroplasts found?

A

Usually the mesophyll

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7
Q

Microscopic pores in the leaves that allow for exchange of O2 and CO2.

A

Stomata

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8
Q

The membranes of the chloroplasts are the

A

stroma

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9
Q

Connected sacs in the chloroplast that compose a third membrane system

A

Thylakoids

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10
Q

Stacks of thylakoids are called

A

Grana

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11
Q

The pigment that gives leaves their green color

A

Chlorophyll

Resides in the thylakoid membrane

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12
Q

This is the equation for

A

Photosynthesis

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13
Q

What is the relationship between photosynthesis and cellular respiration?

A

Photosynthesis is the reverse of cellular respiration

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14
Q

Photosynthesis is a ____ process

A

redox

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15
Q

In photosynthesis, ____ is oxidized.

A

H2O

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16
Q

In photosynthesis, ____ is reduced

A

CO2

17
Q

Is photosynthesis an exergonic or endergonic reaction?

A

Endergonic

The energy is supplied by light

18
Q

What are the two types of reactions in photosynthesis?

A

Light and “dark”

19
Q

Which set of reactions in photosynthesis:

  • Split H2O
  • Release O2
  • Reduce the electron acceptor NADP+ to NADPH
  • Generate ATP from ADP by photophosphorylation
A

Light reactions

20
Q

In which set of reactions in photosynthesis does

The Calvin cycle (in the stroma) forms sugar from CO2, using ATP and NADPH

A

Dark reaction

21
Q

The distance between crests of electromagnetic waves.

A

Wavelength

22
Q

What wavelengths produce visible light?

A

380 nm to 750 nm

23
Q

What colors does Chlorophyll a absorb?

A
  • Red
  • Violet
  • Blue
24
Q

What colors does Chlorophyll b absorb?

A
  • Orange
  • Blue
25
Q

Why are leaves green?

A

Chlorophyll reflects green light

26
Q

Measures a pigment’s ability to absorb various wavelengths

A

Spectrophotometer

27
Q

What are the three types of pigment in chloroplasts?

A
  • Chlorophyll a
  • Chlorophyll b
  • Carotenoids
28
Q

An association of proteins holding a special pair of chlorophyll a molecules and a primary electron acceptor

A

Reaction-center complex

29
Q

Consists of pigment molecules bound to proteins

A

Light-harvesting complex

30
Q

Absorbs wavelengths of 680nm

A

Photosystem II

31
Q

Absorbs wavelengths of 700nm

A

Photosystem I

32
Q

____ electron flow uses only photosystem I and produces ATP, but not NADPH

A

Cyclic

BYU11101 (17 decks)

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