Photosynthesis2

Please answer all the questions. You must work alone, but you may use your notes and text books.

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1: Where would you find a photosytem?: Within a mitochondria
Within the granum
Within the stroma
Within the inner membrane of the envelope
Within the outer membrane of the envelope
Within the membrane of the thylakoid
2: What is passed from the light dependent reactions to the light independent reactions?: Reduced NADP
ATP
ADP
An electron
NAD
Glucose
3: Examine the diagram below showing cyclic phosphorylation. What photosystem is involved in this?: PS 1
PS 2
Carotenoid photosystems
4: Put these sentences in the correct order to describe cyclic phosphorylation: A) Light is transferred to chlorophyll a B)Energy is released and ATP synthesized C) PS 1 absorbs light D) It is captured by an electron acceptor and passed to chlorophyll a E) An electron is excited to a higher energy level and is emitted F) It is passed along a chain of electron carriers: A - C - B - D - E - F
A - E - F - D - B - C
C - E - D - F - B - A
C - A - E - F - D - B
C - A - E - F - B - D
A - C - E - D - F - B
5: The fixation of CO₂ is: Light dependent
Light independent
6: Examine the diagram below. For water to enter a guard cell, there must be a: drop in its water potential
rise in its water potential
7: Examine the diagram below. What layer contains the most photosynthetically active cells: A
B
C
E
F
H
8: What type of autotroph is Nitrosomas bacter
9: Which photosystem includes the photolysis of water: PS 1
PS 2
Both
Neither
10: Describe what happens in the Calvin cycle
11: Examine the image below. What is shown by the arrowed line on the graph?: Carotenoids
Chlorophyll a
Chlorophyll b
12: Which reactions include the splitting of water to give hydrogen ions and the synthesis of ATP in photophosphorylation>: Light dependent reactions
Light independent
13: The diagram below shows an open stomata. What has been actively removed from the cell ?: H⁺ ions
K⁺ ions
Water molecules
14: What colour light energy is trapped by chlorophyll a?: Yellow
Orange
Yellow-green
Blue-green
15: Where do the light independent reactions take place?: Cytoplasm
Mitochondria
Rou ER
Thylakoid membrane
Stroma
16: Examine the image below, which shows experimental results for green light. What type of graph is it?: A photosynthetic action spectrum
A photosynthetic absorption spectrum
17: Explain what you know about limiting factors in photosynthesis
18: What colour does dichlorophenolindophenol go in the presence of light and chloroplasts: Blue
Colourless
Red
Green
19: Examine the graph below. Which line is likely to reflect photosynthesis at optimum temperature levels?: A
B
C
20: What is involved in non-cyclic phosphorylation: PS 1
PS 2
Both
Carotenoids
21: Chlorophyll b is: A primary pigment
A chemiautotrophic pigment
An accessory pigment
22: Light of a shorter wavelength contains: more energy than light of a longer wavelength
Less energy than light of a longer wavelength
The same energy as light of a longer wavelength
23: a reducing agent: donates electrons
accepts electrons
polarises electrons
24: Describe five features of palisdae cells that assist them in their role in absorbing light and gaseous exchange
25: Examine the image below. What term is given to such clusters of photosynthetic pigments?
26: What is at the centre of the structure shown above?: Carotenoid
Chlorophyll a
Chlorophyll b
27: What diffuses into a guard cell along an electrochemical gradient, causing the stomata to open?: Water
H⁺ ions
K⁺ ions
28: Examine the diagram below. Where are the palisade cells?: A
B
C
E
F
G
H
29: What is most responsible for minimalising water loss?: A
B
C
D
E
F
30: Examine the image below. Which letter represents the stroma: A
B
C
D
E
F