Photosynthesis : The Light-Dependent Reactions { 2 }

Question 1 of 15

1

In the light-dependent stage, _ energy is trapped by photosynthetic _, _. Its _ occur _ called _ which are held in the _ of the _.

Select one of the following:

light | pigment | chlorophyll | molecules | grouped together in structures | photosystems | thylakoid membranes | grana
chemical | pigment | chlorophyll | molecules | grouped together in structures | lightsystems | thylakoid membranes | grana
light | pigment | chlorophyll | molecules | haphazardly which are also | photosystems | membranes | grana
light | molecules | chlorophyll | pigment | grouped together in organelles | chlorosystems | stroma | grana

Explanation

Question 2 of 15

1

In each _, several _ _ molecules plus _ pigments ( _ & _ ) are arranged.

Select one of the following:

photosystem | hundred | chlorophyll | accessory | carotene | xanthophylls
chlorophyll | hundred | photsystem | accessory | carotene | xanthophylls
photosystem | thousand | chlorophyll | extra | carroteen | xanthophylls
photosystem | hundred | stroma | additional | carotene | xanthopills

Explanation

Question 3 of 15

1

All these _ _ harvest _ energy and funnel it to a _ chlorophyll _ of the _; this is known as the _ and different _ around it absorb ___ energy of slightly differnt wavelengths.

Select one of the following:

pigment | molecules | light | single | molecule | photosystem | reaction centre | pigments | light
grana | molecules | chemical | a few | atoms | photosystem | reaction centre | chemicals | chemical
pigment | molecules | light | multiple | molecules | photosystem | epicentre | pigments | chemical
pigment | molecules | chemical | single | molecule | photosystem | reaction point | pigments | light

Explanation

Question 4 of 15

1

There are two types of photosystem present in the _ of the and these are photosystem I which has a reaction centre acivated by _ of wavelength _.
Photosystem II has a reaction centre activated by of wavelength _ and is referred to as _; Photosystem I is known as _.

Select one of the following:

thylakoid membranes | grana | light | 700nm | light | 680nm | P680 | P700
thylakoid membranes | grana | chemical | 700mm | light | 680mm | P700 | P680
grana | thylakoid membranes | light | 700nm | light | 680nm | P680 | P700
Stroma | grana | light | 900nm | light | 680nm | P680 | P900

Explanation

Question 5 of 15

1

Although they have specific and differing roles, _ I and II occur _ in the _ of the , along with specific _ i.e. _ & ___.

Select one of the following:

photosystems | grouped together | thylakoid membranes | grana | proteins | enzymes | electron carrier molecules
reactions | separately | thylakoid membranes | grana | proteins | carrier proteins | electron carrier molecules
photosystems | grouped together | thylakoid membranes | grana | molecules | enzymes | proton carrier molecules
granules | joined | stroma | chlorophyll | proteins | enzymes | electrons

Explanation

Question 6 of 15

1

Although they have specific and differing roles, _ I and II occur _ in the _ of the , along with specific _ i.e. _ & ___.

Select one of the following:

photosystems | grouped together | thylakoid membranes | grana | proteins | enzymes | electron carrier molecules
reactions | separately | thylakoid membranes | grana | proteins | carrier proteins | electron carrier molecules
photosystems | grouped together | thylakoid membranes | grana | molecules | enzymes | proton carrier molecules
granules | joined | stroma | chlorophyll | proteins | enzymes | electrons

Explanation

Question 7 of 15

1

Enzymes catalyse :

Select one or more of the following:

the splitting of water into hydrogen ions, electrons and oxygen atoms.
the formation of ATP from ADP and phosphate (Pi).
the conversion of oxidised H-carrier (NADP+) to reduced carrier (NADPH + H+).
the splitting of hydrogen into hydrogen ions & electrons.
the formation of ADP from ATP and phosphate (Pi).
the conversion of oxidised H-carrier (NAD+) to reduced carrier (NADH + H+).

Explanation

Question 8 of 15

1

When _ reaches the reaction centre, _ of the key _ molecule are _ to an '_' state by the _ energy received.

Select one of the following:

light | ground-state electrons | chlorophyll | raised | excited | light
chemical | ground-state electrons | stroma | raised | excited | light
light | sky-state electrons | chlorophyll | lowered | excited | chemical
light | ground-state protons | chlorophyll | raised | dejected | light

Explanation

Question 9 of 15

1

As a result, _ energy _ are released from this _ molecule and bring about the _ changes of the light _ reactions, whilst the spaces vacated by them are continuously refilled by _ or _ _.

Select one of the following:

high | electrons | chlorophyll | biochemical | dependent | non-excited | ground-state | electrons
low | electrons | grana | biochemical | dependent | non-excited | ground-state | protons
high | electrons | chlorophyll | chemical | dependent | non-state | ground-excited | electrons
high | protons | chlorophyll | biochemical | independent | non-excited | ground-state | electrons

Explanation

Question 10 of 15

1

First the _ electrons from photosystem _ are picked up and passed along a ___.

Select one of the following:

excited | II | chain of electron carriers
ground-state | II | chain of proton carriers
excited | I | chain of electron carriers
non-excited | I | chain of hydrogen carriers

Explanation

Question 11 of 15

1

As these _ electrons pass, some of the causes the pumping of _ from the _ _ into the _, where they accumulate causing the pH to _.

Select one of the following:

excited | protons | chloroplast's | matrix | thylakoid spaces | drop
ground-state | hydrogen ions | chloroplast's | matrix | thylakoid spaces | increase
excited | hydrogen ions | chloroplast's | membrane | thylakoid membranes | drop
excited | hydrogen ions | chloroplast's | matrix | thylakoid spaces | increase

Explanation

Question 12 of 15

1

The resulting _ gradient created across the _ _ sustains teh synthesis of _ and is another example of ___.

Select one of the following:

proton | thylakoid | membrane | ATP | chemiosmosis
electron | thylakoid | membrane | ADP | chemiosmosis
proton | thylakoid | matrix | ATP | chemiosmosis
proton | mitochondrial | membrane | ATP | phosphorylation

Explanation

Question 13 of 15

1

As a result of these energy transfers, the excitation level of the _ _ and they come to fill the vacancies in the _ of photosystem . Meanwhile the 'holes' in the _ of photosystem are filled by _ in their _ state from ___ molecules.

Select one of the following:

electrons | falls back to the ground-state | reaction centre | I | reaction centre | II | electrons | ground | water
protons | falls back to the ground-state | epicentre | I | reaction centre | II | electrons | non-excited | water
electrons | falls back to the non-excited-state | reaction centre | I | reaction centre | II | protons | ground | hydrogen
electrons | stays the same | reaction centre | I | reaction centre | I | electrons | excited | water

Explanation

Question 14 of 15

1

The _ charged '_' in photosystem are powerful enough to cause the splitting of _ ( _ ) in the presence of a specific _, which then triggers release of _ and _ as well as ___.

Select one of the following:

positively | vacancies | II | water | photolysis | enzyme | hydrogen ions | oxygen atoms | ground-state electrons
positively | electrons | II | water | electrolysis | enzyme | hydrogen atoms | oxygen ions | ground-state electrons
negatively | vacancies | II | hydrogen | photolysis | enzyme | hydrogen ions | oxygen atoms | non-excited-state electrons
positively | vacancies | I | water | photolysis | enzyme | hydrogen ions | oxygen atoms | excited electrons

Explanation

Question 15 of 15

1

The _ atoms combine to form _ -the _ of photosynthesis; meanwhile the _ ions are used in the _ of _.

Select one of the following:

oxygen | molecular oxygen | waste product | hydrogen | reduction | NADP+
hydrogen | molecular oxygen | waste product | oxygen | reduction | NADP
oxygen | oxygen | waste product | hydrogen | reduction | NAD
oxygen | molecular oxygen | product | hydrogen | reduction | NADP+

	Created by cloud.berry over 10 years ago

IBD Biology (Unit 9 : Energy Transfer In Cell II) Quiz on Photosynthesis : The Light-Dependent Reactions { 2 }, created by cloud.berry on 10/01/2013.

Photosynthesis : The Light-Dependent Reactions { 2 }

Photosynthesis : The Light-Dependent Reactions { 2 }

Question 1 of 15

In the light-dependent stage, ___ energy is trapped by photosynthetic ___, ___. Its ___ occur ___ called ___ which are held in the ___ of the ___.

Select one of the following:

Explanation

Question 2 of 15

In each ___, several ___ ___ molecules plus ___ pigments ( ___ &amp; ___ ) are arranged.

Select one of the following:

Explanation

Question 3 of 15

All these ___ ___ harvest ___ energy and funnel it to a ___ chlorophyll ___ of the ___; this is known as the ___ and different ___ around it absorb ___ energy of slightly differnt wavelengths.

Select one of the following:

Explanation

Question 4 of 15

There are two types of photosystem present in the ___ of the __ and these are photosystem I which has a reaction centre acivated by ___ of wavelength ___. Photosystem II has a reaction centre activated by __ of wavelength ___ and is referred to as ___; Photosystem I is known as ___.

Select one of the following:

Explanation

Question 5 of 15

Although they have specific and differing roles, ___ I and II occur ___ in the ___ of the __, along with specific ___ i.e. ___ &amp; ___.

Select one of the following:

Explanation

Question 6 of 15

Although they have specific and differing roles, ___ I and II occur ___ in the ___ of the __, along with specific ___ i.e. ___ &amp; ___.

Select one of the following:

Explanation

Question 7 of 15

Enzymes catalyse :

Select one or more of the following:

Explanation

Question 8 of 15

When ___ reaches the reaction centre, ___ of the key ___ molecule are ___ to an '___' state by the ___ energy received.

Select one of the following:

Explanation

Question 9 of 15

As a result, ___ energy ___ are released from this ___ molecule and bring about the ___ changes of the light ___ reactions, whilst the spaces vacated by them are continuously refilled by ___ or ___ ___.

Select one of the following:

Explanation

Question 10 of 15

First the ___ electrons from photosystem ___ are picked up and passed along a ___.

Select one of the following:

Explanation

Question 11 of 15

As these ___ electrons pass, some of the causes the pumping of ___ from the ___ ___ into the ___, where they accumulate causing the pH to ___.

Select one of the following:

Explanation

Question 12 of 15

The resulting ___ gradient created across the ___ ___ sustains teh synthesis of ___ and is another example of ___.

Select one of the following:

Explanation

Question 13 of 15

As a result of these energy transfers, the excitation level of the ___ ___ and they come to fill the vacancies in the ___ of photosystem __. Meanwhile the 'holes' in the ___ of photosystem __ are filled by ___ in their ___ state from ___ molecules.

Select one of the following:

Explanation

Question 14 of 15

The ___ charged '___' in photosystem __ are powerful enough to cause the splitting of ___ ( ___ ) in the presence of a specific ___, which then triggers release of ___ and ___ as well as ___.

Select one of the following:

Explanation

Question 15 of 15

The ___ atoms combine to form ___ -the ___ of photosynthesis; meanwhile the ___ ions are used in the ___ of ___.

Select one of the following:

Explanation

In the light-dependent stage, _ energy is trapped by photosynthetic _, _. Its _ occur _ called _ which are held in the _ of the _.

In each _, several _ _ molecules plus _ pigments ( _ & _ ) are arranged.

All these _ _ harvest _ energy and funnel it to a _ chlorophyll _ of the _; this is known as the _ and different _ around it absorb ___ energy of slightly differnt wavelengths.

There are two types of photosystem present in the _ of the and these are photosystem I which has a reaction centre acivated by _ of wavelength _.
Photosystem II has a reaction centre activated by of wavelength _ and is referred to as _; Photosystem I is known as _.

Although they have specific and differing roles, _ I and II occur _ in the _ of the , along with specific _ i.e. _ & ___.

Although they have specific and differing roles, _ I and II occur _ in the _ of the , along with specific _ i.e. _ & ___.

When _ reaches the reaction centre, _ of the key _ molecule are _ to an '_' state by the _ energy received.

As a result, _ energy _ are released from this _ molecule and bring about the _ changes of the light _ reactions, whilst the spaces vacated by them are continuously refilled by _ or _ _.

First the _ electrons from photosystem _ are picked up and passed along a ___.

As these _ electrons pass, some of the causes the pumping of _ from the _ _ into the _, where they accumulate causing the pH to _.

The resulting _ gradient created across the _ _ sustains teh synthesis of _ and is another example of ___.

As a result of these energy transfers, the excitation level of the _ _ and they come to fill the vacancies in the _ of photosystem . Meanwhile the 'holes' in the _ of photosystem are filled by _ in their _ state from ___ molecules.

The _ charged '_' in photosystem are powerful enough to cause the splitting of _ ( _ ) in the presence of a specific _, which then triggers release of _ and _ as well as ___.

The _ atoms combine to form _ -the _ of photosynthesis; meanwhile the _ ions are used in the _ of _.